CN203224645U - Polarization-maintaining coupler - Google Patents
Polarization-maintaining coupler Download PDFInfo
- Publication number
- CN203224645U CN203224645U CN 201320257383 CN201320257383U CN203224645U CN 203224645 U CN203224645 U CN 203224645U CN 201320257383 CN201320257383 CN 201320257383 CN 201320257383 U CN201320257383 U CN 201320257383U CN 203224645 U CN203224645 U CN 203224645U
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- Prior art keywords
- polarization
- maintaining coupler
- slide
- triangle slide
- optical
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- 230000003287 optical effect Effects 0.000 claims abstract description 23
- 239000013307 optical fiber Substances 0.000 claims abstract description 18
- 239000011521 glass Substances 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 230000003281 allosteric effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model provides a polarization-maintaining coupler. The polarization-maintaining coupler includes a reflection assembly and a polarizing assembly packaged successively in the direction of an optical path. The reflection assembly is provided with a polarization-maintaining contact pin base and a collimating lens arranged successively in the direction of the optical path. An optical fiber pin is inserted in the polarization-maintaining contact pin base. The optical fiber pin is opposite to the collimating lens. The polarizing assembly includes a lens support, a triangular slide and a parallel slide. A triangular slide is arranged on the lens support fixedly. The reflection assembly is opposite to one side of the triangular slide while the parallel slide is opposite to the other side of the triangular slide. According to the utility model, the reflection assembly and the polarizing assembly are formed by utilizing a comparatively simple structure. The integral size is small after packaging and integrating and the polarization-maintaining coupler can be suitable for a small-size passive optical network without structural changes. Splitting ratio and coupling splitting ratio of monitoring optical signals can be adjusted according to requirements, so that main optical path loss can be reduced.
Description
[technical field]
The utility model relates to a kind of optical device of all optical fibre structure, relates in particular to polarization-maintaining coupler.
[background technology]
Along with technical development, science and technology are constantly progressive, increasing to power demands, the increasing continuous consumed power of product needed is kept.Along with circuit requirements is constantly soaring, the capacity of electric system is increasing, and electric pressure is more and more higher, and unsurmountable defective appears in traditional electromagnetic current transducer.The current transformer that utilizes optical device to make appears in technical research personnel's the visual field, utilizes the circuit mutual inductor of all optical fibre structure of optical device development that great advantage is being arranged aspect dynamic range, sensitivity, signal to noise ratio (S/N ratio), the return loss at present.
The current transformer network of existing all optical fibre structure mainly comprises light source, fiber coupler, the optical fiber polarizer, optical fiber phase retardation device, polarization maintaining optical fibre lag line, optical fiber plectrum and sensor fibre.Because fiber coupler is polarization-maintaining coupler, and the proportion by subtraction of the light source monitoring client of use polarization-maintaining coupler and coupling port must be identical, and this moment, splitting ratio and the coupling splitting ratio of monitor optical signal can not arbitrarily be controlled, and caused the main optical path loss bigger.
[summary of the invention]
The utility model has proposed to integrate the polarization-maintaining coupler of the polarizer, detecting function, coupling mechanism function at above problem.
The polarization-maintaining coupler that relates to described in the utility model comprises reflection subassembly, the inclined to one side assembly that encapsulates successively from optical path direction; Described reflection subassembly sets gradually along optical path direction and protects inclined to one side Plug pin patch bay and collimation lens, inserts optical fiber contact pins, the opposed collimation lens of this optical fiber contact pins in protecting inclined to one side Plug pin patch bay; Described inclined to one side assembly comprises mirror holder, triangle slide and thin glass plate, and described mirror holder fixedly sets up the triangle slide, described triangle slide one side opposed reflection subassembly, and the opposed thin glass plate of an other side of triangle slide.
Described triangle slide is optical filtering type triangle slide.
Described thin glass plate is oblique thin glass plate.
The utility model adopts comparatively simple structure to constitute reflection subassembly and play inclined to one side assembly, it is little to encapsulate integrated overall dimensions, do not need allosteric just can be fit to the small passive optical-fiber network and adopt, can regulate splitting ratio and the coupling splitting ratio of monitor optical signal as required, reduce the main optical path loss.
[description of drawings]
Fig. 1 is the structural representation of the utility model polarization-maintaining coupler.
Wherein: 100, polarization-maintaining coupler; 10, reflection subassembly; 11, protect inclined to one side Plug pin patch bay; 12, collimation lens; 13, optical fiber contact pins; 20, play inclined to one side assembly; 21, mirror holder; 22, triangle slide; 23, thin glass plate.
[embodiment]
Below in conjunction with drawings and Examples the utility model polarization-maintaining coupler is elaborated.
Please refer to accompanying drawing 1: there is shown a kind of polarization-maintaining coupler 100, comprising the reflection subassembly 10 that encapsulates successively from optical path direction, inclined to one side assembly 20; Described reflection subassembly 10 sets gradually along optical path direction and protects inclined to one side Plug pin patch bay 11 and collimation lens 12, inserts optical fiber contact pins 13, these optical fiber contact pins 13 opposed collimation lenses 12 in protecting inclined to one side Plug pin patch bay 11; Described inclined to one side assembly 20 comprises mirror holder 21, triangle slide 22 and thin glass plate 23, and described mirror holder 21 fixedly sets up triangle slide 22, described triangle slide 22 1 sides opposed reflection subassembly 10, and the opposed thin glass plate 23 of an other side of triangle slide.
Described triangle slide 22 is optical filtering type triangle slides.
Described thin glass plate 23 is oblique thin glass plates.
The utility model adopts comparatively simple structure to constitute reflection subassembly and play inclined to one side assembly, it is little to encapsulate integrated overall dimensions, do not need allosteric just can be fit to the small passive optical-fiber network and adopt, can regulate splitting ratio and the coupling splitting ratio of monitor optical signal as required, reduce the main optical path loss.
The above, it only is the utility model preferred embodiment, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solutions of the utility model content, refer to any simple modification that above embodiment is done according to the utility model technology, equivalent variations and modification all belong in the scope of technical solutions of the utility model.
Claims (3)
1. a polarization-maintaining coupler is characterized in that, this polarization-maintaining coupler comprises reflection subassembly, the inclined to one side assembly that encapsulates successively from optical path direction; Described reflection subassembly sets gradually along optical path direction and protects inclined to one side Plug pin patch bay and collimation lens, inserts optical fiber contact pins in protecting inclined to one side Plug pin patch bay, this optical fiber contact pins opposed collimation lens; Described inclined to one side assembly comprises mirror holder, triangle slide and thin glass plate, and described mirror holder fixedly sets up the triangle slide, described triangle slide one side opposed reflection subassembly, and the opposed thin glass plate of an other side of triangle slide.
2. according to the described polarization-maintaining coupler of claim 1, it is characterized in that described triangle slide is optical filtering type triangle slide.
3. according to the described polarization-maintaining coupler of claim 1, it is characterized in that described thin glass plate is oblique thin glass plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320257383 CN203224645U (en) | 2013-05-10 | 2013-05-10 | Polarization-maintaining coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320257383 CN203224645U (en) | 2013-05-10 | 2013-05-10 | Polarization-maintaining coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203224645U true CN203224645U (en) | 2013-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320257383 Expired - Fee Related CN203224645U (en) | 2013-05-10 | 2013-05-10 | Polarization-maintaining coupler |
Country Status (1)
| Country | Link |
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| CN (1) | CN203224645U (en) |
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-
2013
- 2013-05-10 CN CN 201320257383 patent/CN203224645U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20180510 |