CN218003811U - Optical adjusting frame and optical path system - Google Patents

Abstract

The embodiment of the application relates to but is not limited to the optical technology, and provides an optical adjusting frame and an optical path system. The optical adjustment mount includes: a base; and the fixing plate is used for fixing the optical element, the fixing plate is connected with the base, and is provided with a positioning groove which is matched with the optical element to be fixed so as to position the optical element. The positioning groove is additionally arranged on the fixing plate, so that the position of the optical element relative to the fixing plate can be accurately positioned, and the reduction of working errors is facilitated.

Description

Optical adjusting frame and optical path system

Technical Field

The present disclosure relates to, but not limited to, optical technology, and more particularly, to an optical alignment mount and optical path system.

Background

In a conventional optical adjustment frame, a pressing arm is generally used to fix an optical element on a plate surface of a fixing plate of the optical adjustment frame. In the operation process, the optical element is manually placed at a proper position on the fixing plate, and then the optical element is clamped and fixed by the matching of the pressing arm and the fixing plate, so that the fixing mode provides a large degree of freedom for adjusting the optical element. However, since the position of the optical element relative to the fixing plate is completely manually determined, there is a large working error.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an optical adjusting frame, has add positioning groove on the fixed plate, can the position of accurate positioning optical element for the fixed plate to be favorable to reducing working error.

The embodiment of the application provides an optical adjusting frame, includes: a base; and the fixing plate is used for fixing the optical element, the fixing plate is connected with the base, and is provided with a positioning groove which is matched with the optical element to be fixed so as to position the optical element.

The optical adjusting frame provided by the embodiment of the application increases the positioning groove on the fixing plate, and the positioning groove is matched with the shape of the optical element to be fixed, so that the optical element can be accurately positioned. Like this, can fix a position optical element in positioning groove earlier, then fix optical element, can guarantee that optical element fixes the positioning groove department at the fixed plate accurately, and can not fix in other positions to realized the accurate location of optical element for the position of optics adjustment frame, and then be favorable to improving the position accuracy of optical element in the laser light path, be favorable to reducing working error.

In an exemplary embodiment, the base includes: a first connection portion configured to be connected to the mount; the second connecting part is fixedly connected with the fixing plate; and the adjusting mechanism is connected with the first connecting part and the second connecting part and used for adjusting the position of the second connecting part relative to the first connecting part.

In an exemplary embodiment, the adjustment mechanism includes: the supporting ball is limited between the first connecting part and the second connecting part and is arranged to enable the second connecting part to rotate around the supporting ball relative to the first connecting part; the first adjusting piece is connected with the first connecting part and the second connecting part and is arranged to drive the second connecting part to rotate around a first central axis of the supporting ball relative to the first connecting part; and the second adjusting piece is connected with the first connecting part and the second connecting part and is arranged to drive the second connecting part to rotate around a second central axis of the supporting ball relative to the first connecting part, and the second central axis is perpendicular to the first central axis.

In an exemplary embodiment, the base is provided with at least one limiting hole, and the limiting hole is used for installing a connecting piece so that the base is fixedly connected with the installation seat.

In an exemplary embodiment, the optical trim mount further comprises: and the clamping mechanism is arranged on the fixing plate and is used for fixing the optical element on the fixing plate.

In an exemplary embodiment, the fixing plate is provided with a screw hole, and the clamping mechanism includes: the pressing arm comprises a supporting part and a clamping part, one end of the supporting part is fixed in the threaded hole, the other end of the supporting part is connected with the clamping part, and the clamping part is opposite to the fixing plate and matched with the fixing plate to clamp and fix the optical element.

In an exemplary embodiment, the clamping mechanism includes: the first clamping plate, the second clamping plate and the elastic piece; one end of the elastic piece is connected with the first clamping plate, and the other end of the elastic piece is connected with the second clamping plate; the first clamping plate and the second clamping plate are arranged on two sides of the positioning groove and are used for clamping and fixing the optical element by utilizing the reset elasticity of the elastic piece.

In an exemplary embodiment, the fixing plate is provided with a receiving groove, a slot and a guide groove, and the elastic member is located in the receiving groove; the slot is communicated with one end of the accommodating groove, and one end of the first clamping plate, which is connected with the elastic piece, is inserted into the slot; the guide groove is communicated with the other end of the accommodating groove, and one end of the second clamping plate, which is connected with the elastic piece, is inserted into the guide groove; the guide groove is arranged to guide the second clamping plate to move towards or away from the positioning groove.

In an exemplary embodiment, the number of the positioning grooves is one; alternatively, the number of the positioning grooves is plural, and the plural positioning grooves are provided to position plural optical elements to be fixed.

In an exemplary embodiment, a projection of the positioning groove on the fixing plate is square, circular or triangular.

An embodiment of the present application further provides an optical path system, including: an integrated mounting base; and at least one optical assembly comprising at least one optical element and the optical trim bracket according to any of the above embodiments, wherein the base of the optical trim bracket is connected with the mounting base, and the optical element is fixed on the fixing plate of the optical trim bracket.

In an exemplary embodiment, the optical path system further includes: the temperature control module is arranged on the mounting seat; and/or an electrical module integrated with the mount.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. Other advantages of the present application can be realized and attained by the instrumentalities and combinations particularly pointed out in the specification and the drawings.

Drawings

The drawings are intended to provide an understanding of the present disclosure, and are to be considered as forming a part of the specification, and are to be used together with the embodiments of the present disclosure to explain the present disclosure without limiting the present disclosure.

FIG. 1 is a schematic diagram of an optical alignment mount according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of the optical alignment frame and the optical element shown in FIG. 1;

FIG. 3 is a schematic diagram of a laser path of a laser beam passing through a beam splitter;

FIG. 4 is a schematic view of an optical alignment mount and two optical components according to another embodiment of the present disclosure;

FIG. 5 is a schematic view of an optical alignment rack according to another embodiment of the present application;

FIG. 6 is a schematic view of an optical alignment mount holding an optical element according to one embodiment of the present application;

fig. 7 is a schematic structural diagram of an optical path system according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of an optical path system according to another embodiment of the present application;

FIG. 9 is a schematic top view of the optical path system shown in FIG. 8;

FIG. 10 is an exploded view of the mounting base, the AOM and the adaptive optical alignment jig of FIG. 8.

Description of the labeling:

1, a base, 11 first connecting parts, 111 limiting holes, 12 second connecting parts, 13 adjusting mechanisms, 131 first adjusting parts, 132 second adjusting parts and 14 third connecting parts;

2, fixing plates, 21 positioning grooves, 22 preformed grooves, 23 connecting holes and 24 fixing holes;

3 clamping mechanism, 31 first clamping plate, 32 second clamping plate, 33 elastic piece;

4 an optical element;

5 mounting seats, 51 mounting holes;

61 light input module, 62 quarter wave plate module, 63 half wave plate module, 64 polarization beam splitter module, 65 acousto-optic modulator module, 651 acousto-optic modulator, 66 lens module, 67 aperture diaphragm module, 68 mirror module, 69 light output module;

100 optical alignment mount.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

In quantum computing, precision measurement, atom experiment, optics experiment etc. numerous physical systems, all need to set up laser light path, there are two kinds of cube optical elements commonly used in setting up the light path: polarizing Beam Splitter (PBS), non-polarizing Beam Splitter (BS). The PBS and BS may implement beam splitting and combining for the laser light. Such optical elements are used in large quantities in laser-related scientific research and industrial production.

At present, in the engineering of fixing such optical elements and constructing optical paths, a commonly adopted optical path constructing scheme is that an optical element is fixed on an optical platform (also called a mounting base) with a screw hole by an optical bench (also called an optical adjusting frame) and a pressing plate so as to form a specific optical path, and displacement and angle regulation of the optical element can be realized by a mechanical optical bench. The relative positions of the different elements in the optical bench are determined by the position of the optical element relative to the optical bench and the position of the optical bench in the optical bench.

The optical element is usually fixed on the plate surface of the fixing plate of the optical bench by a pressing arm, and the position of the optical element relative to the fixing plate is completely manually determined, so that a large working error exists. The optical bench is usually fixed on a screw hole of the optical bench by a column, a pressing plate and a screw (i.e., the base of the optical bench is fixed on the column by the screw, the bottom of the column has a supporting plate, the supporting plate is supported on the optical bench, the pressing plate is pressed on the supporting plate and fixed on the optical bench by the screw, and then the column is fixed, so that the positions of the optical bench and the optical element are also fixed). Therefore, the position of the pressing plate for fixing the base of the optical bench is completely determined manually, and a large working error exists.

Although this optical path building method provides a large degree of freedom in adjustment, the fixing of the position of the optical element is determined manually, and therefore there are large errors caused by manual fixing.

In addition, the optical bench and the optical platform are fixed together to be loose, and because the optical machine, the optical bench and the optical platform are made of different materials, inevitable displacement errors occur when the temperature is greatly changed, which is caused by different coefficients of expansion with heat and contraction with cold of different materials. Since many precise physical experiments have extremely high requirements on the stability of the laser light path, the laser light path is required to maintain an extremely high stability degree in a long-time working state. Therefore, the traditional light path construction scheme often does not meet ideal requirements in quantum computation, quantum precision measurement and cold atom experiments, and technicians are required to adjust and calibrate the laser light path regularly.

In addition, the conventional laser path is built on an optical platform, and the optical platform only provides a two-dimensional plane, so the laser path is usually limited to a parallel two-dimensional plane. The optical design hardly meets the requirements of laser adjustment at any angle in partial experiments, and space is greatly wasted. Meanwhile, the manufacturing cost of the optical platform is relatively high, so that the manufacturing cost of a single optical path is also very high.

Based on this, as shown in fig. 1 and fig. 2, an embodiment of the present application provides an optical alignment mount 100, including: a base 1 and a holding plate 2 for holding an optical element 4, as shown in fig. 2. The fixing plate 2 is connected with the base 1. The fixing plate 2 is provided with a positioning groove 21 as shown in fig. 1. The positioning groove 21 is provided to fit with the optical element 4 to be fixed to position the optical element 4, as shown in fig. 2.

The optical adjusting bracket 100 provided by the embodiment of the application adds the positioning groove 21 on the fixing plate 2, and the positioning groove 21 is matched with the shape of the optical element 4 to be fixed, so that the optical element 4 can be accurately positioned. Like this, can fix a position optical element 4 in positioning groove 21 department earlier, then fix optical element 4, can guarantee that optical element 4 fixes the positioning groove 21 department at fixed plate 2 accurately, and can not fix in other positions to the accurate location of optical element 4 for the position of optics alignment jig 100 has been realized, and then is favorable to improving the position accuracy of optical element 4 in the laser light path, is favorable to reducing working error.

Wherein the positioning recess 21 is adapted to the shape of the bottom of the optical element 4 to be fixed. Like this, positioning groove 21 can play good effect to fixed, the spacing of optical element 4's bottom, and the bottom of the optical element 4 of looks adaptation can be spacing in positioning groove 21 for optical element 4 can not remove at will, thereby plays the positioning action.

One end of the positioning groove 21 may be notched transversely through one end of the fixing plate 2, as shown in fig. 1. Therefore, the matched optical element 4 can enter the positioning groove 21 through the gap, which is beneficial to reducing the assembly difficulty of the optical element 4 and the processing difficulty of the positioning groove 21.

The connection mode of the base 1 and the fixing plate 2 is not limited. Such as: the base 1 is fixedly bonded with the fixed plate 2; alternatively, the base 1 and the fixing plate 2 are fixed by a fastener (e.g., a screw), as shown in fig. 1, and correspondingly, a fixing hole 24 (as shown in fig. 5) for installing the fastener is formed on the fixing plate 2.

In the embodiment of the present application, the optical element 4 refers to an element having optical characteristics, including but not limited to a general optical element, an electro-optical element, and the like.

In an exemplary embodiment, the base 1 includes: a first connecting portion 11, a second connecting portion 12 and an adjusting mechanism 13, as shown in fig. 1.

Wherein the first connection portion 11 is arranged in connection with the mounting 5. The second connecting portion 12 is fixedly connected to the fixing plate 2. The adjusting mechanism 13 connects the first connecting portion 11 and the second connecting portion 12, and is used for adjusting the position of the second connecting portion 12 relative to the first connecting portion 11.

The base 1 includes a first connecting portion 11, a second connecting portion 12, and an adjusting mechanism 13. The first connecting portion 11 can be connected to the mounting base 5 (i.e. optical platform, bread board or integrated mounting base, etc.) to ensure that the optical element 4 can form an optical path together with other optical elements on the mounting base 5. The mount 5 may be a metal piece. The second connecting portion 12 is fixedly connected to the fixing plate 2, so as to connect the base 1 and the fixing plate 2. Since the first connecting portion 11 and the second connecting portion 12 are connected by the adjusting structure, so that the position of the second connecting portion 12 relative to the first connecting portion 11 can be adjusted, the position of the fixing plate 2 relative to the first connecting portion 11 can be adjusted, and the position of the optical element 4 fixed on the fixing plate 2 relative to the first connecting portion 11 can also be adjusted.

That is, the base 1 and the fixed plate 2 are not integrated, but the relative positions thereof can be adjusted by the adjustment mechanism 13. In this way, after the optical adjustment frame 100 is fixed on the mounting base 5, the position of the optical element 4 relative to the mounting base 5 can be finely adjusted by the adjusting mechanism 13 to meet the optical path requirement.

The second connecting portion 12 of the base 1 and the fixing plate 2 may be fixed by an adhesive or may be fixed by a fastener such as a screw.

In an exemplary embodiment, the adjustment mechanism 13 includes: a support ball (not shown), a first adjustment member 131, and a second adjustment member 132, as shown in fig. 5.

The supporting ball is limited between the first connecting portion 11 and the second connecting portion 12, and the second connecting portion 12 is configured to rotate around the supporting ball relative to the first connecting portion 11.

The first adjustment member 131 connects the first connection portion 11 and the second connection portion 12, and is configured to drive the second connection portion 12 to rotate around the first central axis of the support ball relative to the first connection portion 11.

The second adjusting member 132 connects the first connecting portion 11 and the second connecting portion 12, and is configured to drive the second connecting portion 12 to rotate around a second central axis of the support ball relative to the first connecting portion 11, wherein the second central axis is perpendicular to the first central axis.

For example, the first central axis may be in a horizontal direction, and the first adjusting member 131 may drive the second connecting portion 12 to rotate around the horizontal axis, thereby adjusting the pitch angle of the optical element 4 relative to the mounting base 5. The second central axis may be in a vertical direction, and the second adjusting member 132 may drive the second connecting portion 12 to rotate about the vertical axis, thereby adjusting the rotation angle of the optical element 4 relative to the mount 5.

As shown in fig. 1, the first connecting portion 11 may be substantially L-shaped, and the second connecting portion 12 is adapted to the shape of the first connecting portion 11. The support ball is provided at a corner of the first connecting portion 11, corresponding to a fulcrum of the lever. The first adjusting member 131 is disposed at an upper end of the first connecting portion 11, and a central axis of the first adjusting member 131 and a center of the supporting ball are located on the same vertical plane. The second adjusting member 132 is disposed at one end of the first connecting portion 11, and the central axis of the second adjusting member 132 and the center of the supporting ball are located on the same horizontal plane. The first and second adjusting members 131 and 132 may each include an adjusting bolt and a spring (the spring may be sleeved on the adjusting bolt or between the adjusting bolt and the support ball). The adjusting bolt connects the first connecting portion 11 and the second connecting portion 12. By rotating the adjusting bolt, the tightness of the spring can be adjusted, and the position of the second connecting portion 12 relative to the first connecting portion 11 can be finely adjusted. The function can be used in laser light path construction, and accurate adjustment of the laser space position is achieved.

Wherein, by rotating the adjusting bolt of the first adjusting member 131, the distance between the upper end of the second connecting portion 12 and the upper end of the first connecting portion 11 can be adjusted, and thus the pitch angle of the optical element 4 relative to the mounting base 5 can be adjusted. By rotating the adjusting bolt of the second adjusting member 132, the distance between the lower end of the second connecting portion 12 and the lower end of the first connecting portion 11 can be adjusted, and thus the rotation angle of the optical element 4 with respect to the mount base 5 can be adjusted.

In an exemplary embodiment, the base 1 is provided with at least one stopper hole 111, as shown in fig. 1 and 5. The limiting hole 111 is provided for mounting a connecting piece, so that the base 1 is fixedly connected with the mounting seat 5.

Wherein, the quantity of spacing hole 111 can be a plurality of, and the connecting piece can be the fastener. In this way, the base 1 can be mounted directly on the integral modular mount via a plurality of fasteners, without being indirectly fixed to the mount 5 via posts and pressure plates. Because the positions of the plurality of fasteners are fixed, the position of the base 1 relative to the mounting seat 5 is also fixed, so that the position of the optical adjusting frame 100 relative to the mounting seat 5 can be accurately fixed, the accurate positioning of the position of the optical adjusting frame 100 relative to the mounting seat 5 is realized, the position accuracy of the optical element 4 in the laser light path is further improved, the reduction of working errors is facilitated, and the shortening of the construction duration of the laser light path is also facilitated.

In this way, the optical element 4 is extremely suitable for building an integrated optical path. The integrated optical path means that a traditional fixing mode of a stand column and a pressure plate is not used, and all optical elements 4 in the laser optical path are directly fixed on the same rigid mounting seat 5 through the optical adjusting frame 100. The position of each optical alignment frame 100 relative to the mounting base 5 is determined by a plurality of limiting holes 111, and the position of the optical element 4 relative to the optical alignment frame 100 is determined by the design size of the fixing plate 2 with the positioning groove 21. In this way, the position of each optical element 4 and the direction of the laser in the integrated optical path are quantized and easily determined, and errors caused by artificial construction are avoided. Therefore, the optical adjusting mount 100 provided in the embodiment of the present application can be applied to the construction and trial use of a laser light path, and is generally used in numerous fields such as quantum computation, quantum precision measurement, cold atom physical experiments, and the like.

And a pressing plate and an upright post are omitted, the types and the number of devices in the optical path can be reduced, the problem of looseness caused by different thermal expansion coefficients of different devices is reduced, the overall stability of the optical path is improved, and the resistance of the optical path to temperature fluctuation is improved.

Of course, the number of the limiting holes 111 may also be one, and then the connecting member may also adopt a conventional upright post and a conventional pressing plate, and then the optical adjustment frame 100 provided in the embodiment of the present application may also be applied to conventional optical path construction.

The number of the limiting holes 111 may be two, three or more. Such as: as shown in fig. 1, the first connecting portion 11 is provided with two limiting holes 111, one limiting hole 111 extends along the horizontal direction, and the other limiting hole 111 extends along the vertical direction. Alternatively, as shown in fig. 5, the base 1 further includes a third connecting portion 14 fixedly connected to the first connecting portion 11, and the third connecting portion 14 is provided with three limiting holes 111 spaced apart in the horizontal direction, so that the base 1 can be fixed on the mounting base 5 by using three screws.

In an exemplary embodiment, the optical trim stand 100 further comprises: and a holding mechanism 3 provided on the fixed plate 2 and configured to fix the optical element 4 to the fixed plate 2.

The clamping mechanism 3 can well fix the optical element 4, and effectively prevent the optical element 4 from moving relative to the fixing plate 2, so that the stability of the optical element 4 is improved, and the optical element 4 is convenient to disassemble.

Of course, the optical element 4 may also be fixed by gluing or other means.

In an exemplary embodiment, the fixing plate 2 is provided with a threaded hole, and the clamping mechanism 3 includes: a press arm (not shown). The pressure arm includes supporting part and clamping part, and the one end of supporting part is fixed in the screw hole, and the other end of supporting part links to each other with the clamping part. The holding portion is disposed opposite to the fixing plate 2 and cooperates with the fixing plate 2 to hold and fix the optical element 4.

In other words, the optical element 4 is clamped and fixed from the vertical direction by adopting a traditional pressing arm structure. Accordingly, the fixing plate 2 is provided with a coupling hole 23 for mounting the pressing arm, as shown in fig. 5.

In another exemplary embodiment, as shown in fig. 6, the chucking mechanism 3 includes: a first clamping plate 31, a second clamping plate 32 and an elastic member 33. One end of the elastic member 33 is connected to the first clamping plate 31, and the other end of the elastic member 33 is connected to the second clamping plate 32. The first clamping plate 31 and the second clamping plate 32 are disposed on both sides of the positioning groove 21, and are configured to clamp and fix the optical element 4 by the return elastic force of the elastic member 33.

The scheme clamps and fixes the optical element 4 from the horizontal direction, and the operation is simpler. When the optical element is installed, the space between the two clamping plates is directly enlarged, the optical element 4 is placed at the positioning groove 21, and then the two clamping plates are reset.

For example, the elastic member 33 may be an extension spring. Wherein, the first clamping plate 31 and the second clamping plate 32 can be provided with hooks, and two ends of the extension spring are respectively hooked on the corresponding hooks. Alternatively, the tension spring may be fixed to the first clamping plate 31 and the second clamping plate 32 by welding or the like.

In an exemplary embodiment, the fixing plate 2 is provided with a receiving groove (not shown), an insertion groove (not shown), and a guide groove (not shown). The elastic member 33 is located in the receiving groove. The slot is communicated with one end of the accommodating groove, and one end of the first clamping plate 31, which is connected with the elastic piece 33, is inserted into the slot. The guide groove is communicated with the other end of the accommodating groove, and one end of the second clamping plate 32, which is connected with the elastic piece 33, is inserted into the guide groove. The guide groove is provided to guide the second clamp plate 32 to move closer to or away from the positioning groove 21.

Wherein, the lower extreme and the holding tank intercommunication of slot, the top surface of fixed plate 2 is run through to the upper end of slot, guarantees that first splint 31 can be protruded out of fixed plate 2 to the top. The lower extreme and the holding tank intercommunication of guide way, the top surface of fixed plate 2 is run through to the upper end of guide way, guarantees that second splint 32 can be protruding from fixed plate 2 to the top.

Thus, the positions of the first clamping plate 31, the second clamping plate 32 and the elastic piece 33 are more stable, and the situations of displacement, inclination, even falling off and the like are not easy to occur, which is beneficial to improving the use reliability of the clamping mechanism 3.

In an exemplary embodiment, the number of the positioning grooves 21 is one, as shown in fig. 1 and 5.

In another exemplary embodiment, the number of the positioning grooves 21 is plural, as shown in fig. 4. The plurality of positioning grooves 21 are provided to position the plurality of optical elements 4 to be fixed.

When the number of the positioning grooves 21 is one, only one optical element 4 is fixed to the optical adjustment frame 100.

When the number of the positioning grooves 21 is multiple, the optical adjustment frame 100 can be used for fixing multiple optical elements 4 at the same time, which is beneficial to reducing the number of the optical adjustment frames 100 in the light path construction.

Such as: when the optical adjustment frame 100 provided in the embodiment of the present application is used to mount the polarization beam splitter, not only one square beam splitter may be mounted for laser splitting, but also two or more polarization beam splitters may be mounted for laser polarization purification.

In an exemplary embodiment, the projection of the positioning groove 21 on the fixing plate 2 is square (as shown in fig. 1), circular or triangular.

The projection of the positioning recess 21 on the fixing plate 2 is square, and the optical element 4 to be fixed is cube-shaped or similar to cube-shaped, such as a Polarizing Beam Splitter (PBS), a non-polarizing Beam Splitter (BS), an acoustic optical modulator 651 (AOM) and an electro-optical modulator (EOM) with square shapes, and the like.

Of course, the projection of the positioning groove 21 on the fixing plate 2 may also be circular, triangular or other shapes, and the optical adjustment frame 100 may be used for fixing the optical element 4 with a cylindrical or triangular prism shape.

In an exemplary embodiment, the fixing plate 2 is further provided with a reserve groove 22 communicating with the positioning groove 21, as shown in fig. 5. The pre-groove 22 is provided for the tool to operate the optical element 4.

In this way, the pre-groove 22 may provide space for the use of a tool to facilitate the mounting or dismounting of the optical element 4 with the tool.

Meanwhile, the preformed groove 22 is arc-shaped, so that the machining is convenient (the machining is difficult to directly machine the right-angle turning, so that the arc-shaped preformed groove 22 is increased, and the machining difficulty of the positioning groove 21 can be reduced).

As shown in fig. 7 to 10, an embodiment of the present application further provides an optical path system, including: an integrated mount 5 and at least one optical component.

Wherein the optical assembly comprises at least one optical element 4 and an optical trim set 100 as in any of the above embodiments. The base 1 of the optical adjustment mount 100 is connected to the mount 5. The optical element 4 is fixed to the fixing plate 2 of the optical adjustment mount 100.

The optical path system provided in the embodiment of the present application includes the optical adjustment frame 100 in any one of the above embodiments, so that all the above beneficial effects are achieved, and details are not described herein again.

The mounting base 5 is provided with a mounting hole 51, as shown in fig. 10, for connecting the base 1 of the optical adjustment frame 100 through a fastener. The shape of the mount 5 is not limited, and may be designed into various shapes such as a stepped shape according to the requirements of the optical path system.

All the optical elements 4 in the optical path system may be fixed on the mount 5 by the optical adjustment frame 100 provided in the embodiment of the present application. Alternatively, only a portion of the optical elements 4 in the optical path system may be fixed on the mounting base 5 by the optical adjusting bracket 100 provided in the embodiment of the present application, and other optical elements 4 (such as optical elements of the wave plate type) may be fixed on the mounting base 5 by a conventional adjusting bracket.

In an exemplary embodiment, the optical path system further includes: and a temperature control module (not shown) disposed on the mounting base 5.

The temperature control module can effectively control the temperature of the mounting base 5, further reduce the influence of temperature change on the optical path system, and is favorable for further improving the stability of the optical path system and the capability of resisting temperature change interference.

In an exemplary embodiment, the optical path system further includes: an electrical module (not shown) integrated in the mounting base 5.

Therefore, when the optical path system is built, only the optical component needs to be assembled, and the building time of the optical path system can be shortened.

Some embodiments are described below in conjunction with the following figures.

A novel optical alignment mount 100, as shown in fig. 1, comprising: a fixing plate 2 provided with a positioning groove 21, a base 1 (taking a two-dimensional adjusting frame as an example) provided with a limiting hole 111, and an adjusting mechanism 13 capable of adjusting the relative position and angle between the fixing plate 2 and the base 1.

The following description will be given by taking the fixing plate 2 with the square positioning groove 21 as an example, and how to fix and position a square optical element 4. In fact, the optical adjustment frame 100 provided in the embodiment of the present application can fix optical elements 4 (including optoelectronic devices) with various shapes, and only the design of the corresponding positioning groove 21 needs to be performed according to the size and shape of the element to be fixed.

The spacing hole 111 of base 1 can carry out the design of customization according to the requirement of light path design and optical path system's mount pad 5, and the base 1 that demonstrates in fig. 5 possesses 3 spacing holes 111, can fix in the mount pad 5 of integration light path, also can fix on the stand and use in traditional light path is built.

The base 1 is taken as a two-dimensional adjusting frame for example. As shown in fig. 1, the base 1 is a two-dimensional adjusting bracket, the two-dimensional adjusting bracket has two connecting portions (i.e. a first connecting portion 11 and a second connecting portion 12), the fixing plate 2 is connected to the second connecting portion 12, and an adjusting knob (i.e. a first adjusting member 131 and a second adjusting member 132) is provided between the first connecting portion 11 and the second connecting portion 12, so that the pitch and the rotation angle between the two connecting portions can be adjusted by the adjusting knob. The first connecting portion 11 of the fixing plate 2 has a stopper hole 111, and is fixed to the mounting seat 5 through the stopper hole 111. Thus, by adjusting the two adjustment knobs, the angle between the fixing plate 2 (and the optical element 4 on the fixing plate 2) and the mount 5 can be adjusted.

As shown in fig. 2, an optical element 4 (e.g. PBS) with a cubic shape can be fixed in the positioning groove 21, and after passing through the PBS, the laser light is divided into two laser beams which respectively directly pass through the PBS and are reflected (as shown in fig. 3), wherein the emitting angle of the reflected laser light can be determined by the adjusting knob. Since the size and position of the positioning groove 21 are precisely designed and manufactured in advance, and the position of the optical adjustment frame 100 is fixed relative to the laser, the spatial position of the laser after passing through the PBS can also be precisely predicted.

As shown in fig. 3, one laser beam is divided into two paths of transmission and reflection by a beam splitter (PBS/BS), the angle and position of the reflected laser beam can be determined by the position and angle of the beam splitter relative to the incident laser beam, and the light intensity of the two outgoing laser beams can be determined by the polarization relationship. The beam splitter can be designed in advance and positioned accurately in the optical path design relative to the optical adjustment frame 100 and the laser. Compared with the traditional light path construction scheme (using a stand column and a pressing plate), the optical adjusting frame 100 is beneficial to construction of more accurate light path design, and the spatial positions of the optical element 4 and laser can be accurately positioned, so that the optical adjusting frame is more suitable for presetting.

In the embodiment of the present application, the fixing plate 2 can fix not only a single optical element 4 (including an optoelectronic element) but also multiple elements, and the relative position relationship between each element is determined by the position of the preset positioning groove 21. FIG. 4 shows an optical alignment mount 100 that can hold two cube beam splitters. Two side-by-side, square positioning recesses 21 are provided in the mounting plate 2 shown in fig. 4 for mounting two cube beam splitters. In the actual optics is built, because only the laser of horizontal polarization can see through PBS, so two PBS can purify the polarization of laser, purify the polarization of laser for complete horizontal polarization greatly, consequently avoid the polarization shake that the laser instrument light-emitting is unstable and brings.

Of course, the embodiment of the present application is not limited to fixing two square elements, and all elements that need to be fixed in relative positions may be fixed on the fixing plate 2 of the same optical adjustment frame 100 according to the requirement of the optical path design, and the shape of the positioning groove 21 on the fixing plate 2 may also be changed in a customized manner according to the external shape of the element, and is not limited to only the square positioning groove 21.

In the present application, the fixing of the optical element 4 on the fixing plate 2 can be achieved by using a press arm structure in a conventional light path building, or fixing it in the positioning groove 21 by using glue. In addition to this, the present application also innovatively proposes the use of a clamping plate with a telescopic spring for fixing the optical element 4. As shown in fig. 6, the extension spring is embedded inside the fixing plate 2, and two vertical clamping plates (i.e. a first clamping plate 31 and a second clamping plate 32) are respectively arranged at two ends of the spring, and when the rectangular optical element 4 is placed in the positioning groove 21, the two clamping plates are pulled by the spring to tightly clamp the optical element 4, thereby performing the function of fixing the optical element 4.

Fig. 7 illustrates a schematic structural diagram of an optical path system according to an embodiment. Fig. 8 illustrates a schematic structural diagram of an optical path system according to another embodiment, fig. 9 illustrates a schematic top view of the optical path system illustrated in fig. 8, and fig. 10 illustrates an exploded structural diagram of the mounting base 5, the acousto-optic modulator 651 and the adaptive optical adjustment frame 100.

In fig. 7, the optical path system includes an integrated mounting base 5, and a light input module 61 (which may be a free optical path or a fiber coupler) mounted on the integrated mounting base 5, a half-wave plate assembly 63 (which includes a half-wave plate and its adjusting bracket), a polarization beam splitter assembly 64 (which includes a polarization beam splitter and its optical adjusting bracket 100), an acousto-optic modulator assembly 65 (which includes an acousto-optic modulator 651 and its optical adjusting bracket 100), a quarter-wave plate assembly 62 (which includes a quarter-wave plate and its adjusting bracket), a lens assembly 66 (which includes a lens and its adjusting bracket), a mirror assembly 68 (which includes a mirror and its adjusting bracket), and a light output module 69 (which may be a free optical path or a fiber coupler).

As shown in fig. 8 and 9, a quarter wave plate assembly 62 may be further included between the light input module 61 and the polarization beam splitter, and an aperture stop assembly 67 (including an aperture stop and its adjusting frame) may be further included between the acousto-optic modulator 651 and the mirror.

The optical elements 4 are mounted on respective optical alignment frames 100, and the optical alignment frames 100 are mounted on the integrated mounting base 5. According to the optical path design, mounting holes 51 are drilled at corresponding positions on the integrated mounting base 5, as shown in fig. 10, for fixing the corresponding optical adjustment frame 100. One or any combination of all the optical adjusting frames 100 is fixed on the corresponding mounting hole 51 of the integrated mounting base 5 through the limiting hole 111 on the base 1.

Optionally, the electrical module is integrated on an integrated mounting base 5, the integrated mounting base 5 having a temperature control module. For example: the integrated mounting base 5 is connected to the semiconductor cooling fin, or a cooling water pipe is installed in the integrated mounting base 5.

In summary, the optical adjustment frame provided in the embodiments of the present application realizes fixing a rectangular parallelepiped optical element (or a similar rectangular parallelepiped optical element) and accurately positioning in a laser optical path, that is: accurately positioning and stably fixing the position of the optical element relative to the optical adjusting frame; the relative position fixation of the optical adjusting frame relative to the laser light path and other elements is realized; the stability of the laser light path is improved: the traditional mode of constructing the light path is changed from the mode of randomly fixing the optical tool seat type element on the optical platform into the mode of fixing all the optical elements on the integrated fixed mounting seat through the optical adjusting frame, so that the overall stability is improved, and the resistance of the light path to temperature fluctuation is improved; when a plurality of optical elements are fixed on one optical adjustment frame (fixing plate), the mutual position relationship among the plurality of optical elements can be ensured to be accurate and fixed.

Therefore, the optical adjusting frame provided by the embodiment of the application can achieve the following technical effects:

1) The position of the clamped optical element relative to the optical adjustment mount can be fixed precisely and corresponds precisely to the presettings. 2) It is possible to fix various types of optical elements while ensuring that the relative positions of the elements are fixed and accurately conform to the preset. 3) After the optical adjusting frame provided by the embodiment of the application is utilized, all optical elements (including photoelectric elements) can be accurately positioned relative to the mounting seat and the position direction of laser, so that the requirement of a preset light path is perfectly met, and large errors caused by manual fixing and assembling of people are avoided. Therefore, the optical adjusting frame provided by the embodiment of the application is more suitable for an optical path with high accuracy requirement and is suitable for an integrated optical path. 4) The optical adjusting frame provided by the embodiment of the application can be suitable for various fixing schemes, and can be fixed in the integrated modular optical path mounting seat through the limiting hole, so that the optical adjusting frame is convenient to mount and dismount; the independent debugging is convenient, and the structure is more light and compact; the integrated light path mounting base can improve the overall stability and the temperature stability of a light path.

Moreover, the optical element clamping device is not limited to a specific optical path or specific regulation and control of laser, almost all laser optical path schemes can be compatible, and the clamping optical elements are not limited to PBS, BS, AOM and EOM, and can clamp optical elements with other shapes.

In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "mouth" word structure "and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and thus, is not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may refer to a direct connection, an indirect connection through intervening media, and a connection between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (12)

1. An optical alignment rack, comprising:

a base; and

the fixing plate is used for fixing an optical element and is connected with the base, and the fixing plate is provided with a positioning groove which is matched with the optical element to be fixed so as to position the optical element.

2. The optical trim frame of claim 1, wherein the base comprises:

a first connection portion configured to be connected to the mount;

the second connecting part is fixedly connected with the fixing plate; and

and the adjusting mechanism is connected with the first connecting part and the second connecting part and is used for adjusting the position of the second connecting part relative to the first connecting part.

3. The optical trim frame of claim 2, wherein the adjustment mechanism comprises:

the supporting ball is limited between the first connecting part and the second connecting part and is arranged to enable the second connecting part to rotate around the supporting ball relative to the first connecting part;

the first adjusting piece is connected with the first connecting part and the second connecting part and is arranged to drive the second connecting part to rotate around a first central axis of the supporting ball relative to the first connecting part; and

and the second adjusting piece is connected with the first connecting part and the second connecting part and is arranged to drive the second connecting part to rotate around a second central axis of the support ball relative to the first connecting part, and the second central axis is perpendicular to the first central axis.

4. Optical trim according to any of claims 1 to 3,

the base is provided with at least one limiting hole, and the limiting hole is arranged to be an installation connecting piece, so that the base is fixedly connected with the installation seat.

5. The optical alignment rack of any of claims 1-3, further comprising:

a clamping mechanism disposed on the fixing plate and configured to fix the optical element to the fixing plate.

6. The optical alignment frame of claim 5, wherein the fixing plate is provided with a threaded hole, and the clamping mechanism comprises:

the pressing arm comprises a supporting part and a clamping part, one end of the supporting part is fixed to the threaded hole, the other end of the supporting part is connected with the clamping part, and the clamping part is arranged opposite to the fixing plate and matched with the fixing plate to clamp and fix the optical element.

7. The optical alignment rack of claim 5, wherein the clamping mechanism comprises: the first clamping plate, the second clamping plate and the elastic piece;

one end of the elastic piece is connected with the first clamping plate, and the other end of the elastic piece is connected with the second clamping plate;

the first clamping plate and the second clamping plate are separated on two sides of the positioning groove and are arranged to be clamped and fixed by the reset elastic force of the elastic piece.

8. The optical alignment frame of claim 7,

the fixing plate is provided with an accommodating groove, an inserting groove and a guide groove, and the elastic piece is positioned in the accommodating groove; the slot is communicated with one end of the accommodating groove, and one end of the first clamping plate, which is connected with the elastic piece, is inserted into the slot; the guide groove is communicated with the other end of the accommodating groove, and one end of the second clamping plate, which is connected with the elastic piece, is inserted into the guide groove; the guide groove is configured to guide the second clamping plate to move toward or away from the positioning groove.

9. Optical trim according to any of claims 1 to 3,

the number of the positioning grooves is one; or

The number of the positioning grooves is multiple, and the plurality of the positioning grooves are used for positioning a plurality of optical elements to be fixed.

10. Optical trim according to any of claims 1 to 3,

the projection of the positioning groove on the fixing plate is square, circular or triangular.

11. An optical path system, comprising:

an integrated mounting base; and

at least one optical assembly comprising at least one optical component and an optical trim frame according to any of claims 1 to 10, the mount of the optical trim frame being connected to the mount, the optical component being secured to a mounting plate of the optical trim frame.

12. The optical path system according to claim 11, further comprising:

the temperature control module is arranged on the mounting seat; and/or

And the electrical module is integrated on the mounting seat.

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