CN103713366A - Optical coupling device - Google Patents
Optical coupling device Download PDFInfo
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- CN103713366A CN103713366A CN201310233937.9A CN201310233937A CN103713366A CN 103713366 A CN103713366 A CN 103713366A CN 201310233937 A CN201310233937 A CN 201310233937A CN 103713366 A CN103713366 A CN 103713366A
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- lens
- light signal
- coupled device
- optically coupled
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- 230000003287 optical effect Effects 0.000 title claims abstract description 52
- 230000008878 coupling Effects 0.000 title claims abstract description 38
- 238000010168 coupling process Methods 0.000 title claims abstract description 38
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 38
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims description 23
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000013307 optical fiber Substances 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 description 7
- 210000002421 cell wall Anatomy 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The invention relates to an optical coupling device, which comprises an optical coupling component, a photoelectric conversion module and at least two optical fibers; the optical coupling assembly has a body and a lens holder; the body is provided with a first lens part and a reflecting surface; the lens frame is arranged on the body in a separable way and is provided with a second lens part; the photoelectric conversion module is positioned at one side of the optical coupling component, corresponds to the first lens part, and is provided with an optical signal generating component and an optical signal receiving component; the optical fibers are positioned at one side of the optical coupling component and correspond to the second lens part.
Description
Technical field
The present invention is relevant with optics, in more detail refers to a kind of optically coupled device.
Background technology
Along with the progress of optics science and technology, utilize light signal to come the design of conducts information and device more and more polynary and universal, and wherein so that optically coupled device is universal, apply in many fields.
And the design of existing optically coupled device is as shown in the U.S.'s No. 7369328 patent of bulletin " Optical path change type optical coupling element ", between two optical conenctors (optical connector), be designed with optical coupling assembly, and there is respectively one group of lens section on two faces of this optical coupling assembly, and this two lens section is identical to the distance of this reflecting surface, pray the design that changes light signal characteristic to see through this two lens section, make this optically coupled device can produce lower loss when carrying out optically-coupled transmission, and can there is better coupling efficiency.
Yet, above-mentioned optically coupled device is when assembling, the doubt of lossy increasing and distortion when avoiding light signal transmission, must see through manually or the mode of machine contraposition makes respectively this optical conenctor align with the lens section on this optically-coupled assembly, not only time-consuming and also easily produce error.Therefore, to sum up illustrate knownly, the design of existing optically coupled device is not attained perfect yet, and the part that still haves much room for improvement.
Summary of the invention
The technical problem to be solved in the present invention is, time-consuming and easily produce the defect of error to optical alignment for optically coupled device of the prior art, a kind of optically coupled device is provided, there is the characteristics such as, optical alignment accuracy height low to the required time of expending of optical alignment time.
The present invention is that the technical scheme that its technical matters of solution adopts is, a kind of optically coupled device is provided, and includes optical coupling assembly, photoelectric conversion module and at least one light transmitting fiber (optical fiber); Wherein, this optically-coupled assembly has body and lens mount; This body has first lens portion and reflecting surface; This lens mount is located on this body in separable mode, and has the second lens; Light signal enters this optical coupling assembly by this first lens portion, after this reflecting surface reflection, by this second lens section, leaves this optical coupling assembly; Or enter this optical coupling assembly by this second lens section, after this reflecting surface reflection, by this first lens portion, leave this optical coupling assembly; This photoelectric conversion module, in order to receive electric signal and to convert to after light news, outwards projects this light signal or receives light signal, then exporting after converting electric signal to; This light transmitting fiber is positioned at a side of this optical coupling assembly, and one end-face is towards this second lens section; This light transmitting fiber is in order to the light signal from external transmission shot to this second lens section or to receive the light signal from this second lens section, and transfers to outside.According to above-mentioned design, this second lens section includes plural lenses, and these lens meet and have following condition:
0.9≧α≧1.2；
Wherein, the center thickness that α is these eyeglasses and the ratio of edge thickness.
According to above-mentioned design, this second lens section includes plural lenses, and these lens meet and have following condition:
28°≧γ≧35°；
Wherein, the minute surface tangent line angle of cut that γ is these lens.
According to above-mentioned design, this first lens portion includes at least one lens, and the minute surface of these lens is aspherical mirror.
According to above-mentioned design, this second lens section includes at least one lens, and the minute surface of these lens is aspherical mirror.
According to above-mentioned design, this lens mount has the first front contraposition part on the face of this body, and on this body correspondence there is the second front contraposition part; When this lens mount is connected with this body, this first front contraposition part is combined with this second front contraposition part.
According to above-mentioned design, this optically coupled device more comprises coil holder, be connected, and these light transmitting fibers is located on this coil holder in separable mode with this lens mount of this optical coupling assembly.
According to above-mentioned design, this coil holder has the 3rd front contraposition part on the face of this lens mount, and on this lens mount, correspondence has the 4th front contraposition part; When this coil holder is connected with this lens mount, the 3rd front contraposition part is combined with the 4th front contraposition part.
According to above-mentioned design, this photoelectric conversion module includes light signal generation component and light signal receiving unit; This light signal generation component has at least one smooth projection unit, in order to receive electric signal at this light signal generation component and to convert to after light news, this light signal is outwards projected; This light signal receiving unit has at least one light receiver, in order to receive light signal, then exports after converting electric signal to by this light signal receiving unit; In addition, this optically coupled device includes two light transmitting fibers, and wherein one in order to the light signal from external transmission is shot to this second lens section, and other one in order to receive the light signal from this second lens section, and transfer to outside.
According to above-mentioned design, this light signal generation component is wall emission laser (vertical cavity surface emitting laser, VCSEL); This light signal receiving unit is photodiode (photodiodes, PD).
By this, see through above-mentioned design, this optically coupled device is not only low to the required time of expending of optical alignment time, more can have the high characteristic of optical alignment accuracy.
Accompanying drawing explanation
Fig. 1 is the exploded view of preferred embodiment of the present invention;
Fig. 2 is the stereographic map of preferred embodiment of the present invention;
Fig. 3 is the stereographic map of optical coupling assembly body;
Fig. 4 is the stereographic map of optical coupling assembly lens mount;
Fig. 5 discloses center thickness and the edge thickness of lens;
Fig. 6 discloses the minute surface tangent line angle of cut of lens;
Fig. 7 is the stereographic map of photoelectric conversion module;
Fig. 8 is the stereographic map of pedestal;
Index path when Fig. 9 and Figure 10 are preferred embodiment transmitting-receiving light signal of the present invention.
Embodiment
For being illustrated more clearly in the present invention, hereby lifting preferred embodiment and coordinate accompanying drawing to be described in detail as follows.
Refer to Fig. 1 and Fig. 2, transceiver (transceiver) and MT type belt light-transmitting fibre connector that the optically coupled device of preferred embodiment of the present invention is received in order to be applicable to existing four four of comparatively extensively being used.This optically coupled device includes optical coupling assembly 10, photoelectric conversion module 20, coil holder 30 and several light transmitting fibers (optical fiber) 40.Wherein:
This optical coupling assembly 10 has body 12 and lens mount 14.Wherein:
Refer to Fig. 3, on this body 12, there is first lens portion 121, first time contraposition part 122 and reflecting surface 123.This first lens portion 121 has 12 non-spherical lenses, and eight lens of close both sides are respectively four the first input lens 121a and four the first output lens 121b.This first time contraposition part 122 is positioned on same surface with this first lens portion 121, and in the present embodiment, this first time contraposition part 122 has two grooves that lay respectively at these first lens portion 121 both sides.
Refer to Fig. 4, this lens mount 14 is connected with this body 12 in separable mode, in the present embodiment, this lens mount 14 has the first front contraposition part 141 on the face of this body 12, on this body 12, correspondence has the second front contraposition part 124, this first front contraposition part 141 has two grooves, and having two, this second front contraposition part 124 is complementary projection with this groove respectively, use and see through this groove respectively and the corresponding respectively mode of this projection combination, this lens mount 14 is connected with this body 12.In addition, on this lens mount 14, there is the second lens section 142, there are 12 non-spherical lenses, and eight lens of close both sides are respectively four the second output lens 142a and four the second input lens 142b.Moreover, referring to Fig. 5 and Fig. 6, these lens more meet following condition:
1.)0.9≦α≦1.2；
2.)28°≦γ≦35°；
Wherein, the center thickness T1 that α is these lens and the ratio of edge thickness T2;
γ is the edge tangent line angle of cut of these lens;
Refer to Fig. 7, this photoelectric conversion module 20 has substrate 22, pedestal 24, light signal generation component 26 and light signal receiving unit 28.Wherein:
This substrate 22 is printed circuit board (PCB), and is laid with circuit layout (conductor pattern) (not shown), and on this substrate 22, has a plurality of metal gasket 221Yu Gai circuit layout and be electrically connected.In the present embodiment, this substrate 22 is soft or hard complex printed-circuit board, and Qie Gai circuit layout is laid in this soft or hard complex printed-circuit board.
This pedestal 24 is made with insulating material, and is located on this substrate 22, and has the first storage tank 241, the second storage tank 242 and second time contraposition part 243.Corresponding these the first input lens 121a in position of this first storage tank 241, the position of this second storage tank 242 is corresponding these first output lens 121b.These second time contraposition part 243 use is for these first time contraposition part 122 combination with this optical coupling assembly 10.In the present embodiment, this second time contraposition part 243 has two projections that lay respectively at these two storage tanks, 241,242 outsides, and the groove shapes of its shape and this first time contraposition part 122 is complementary.In addition, refer to Fig. 8, left and right sides projection central point to the spacing between medium line M1, the M2 of this first storage tank 241 and this second storage tank 242 equates, and cell wall D3, the D4 of the planar S that is connected to form of two projection central axis of this second time contraposition part 243 and these storage tanks 241,242 are in the same plane.
This light signal generation component 26 has several smooth projection units, and be located in this first storage tank 241 and stick to cell wall D1, the D3 of this first storage tank 241, and then corresponding these first input lens 121a, in order to the electric signal of reception is converted to after light signal, see through these light projection units and shoot to this optical coupling assembly 10.In the present embodiment, this light signal generation component 26 is wall emission laser (vertical cavity surface emitting laser, VCSEL).
This light signal receiving unit 28 has several light receivers, and be located in this second storage tank 242 and stick to cell wall D2, the D4 of this second storage tank 242, and then corresponding these first output lens 121b, in order to see through these light receivers, receive after light signal, convert electric signal output to.In the present embodiment, this light signal receiving unit 28 is photodiode (photodiodes, PD).
In addition, this light signal generation component 26 is electrically connected with these metal gaskets 221 of last part of this substrate 22, and this light signal receiving unit 28 is electrically connected with these a part of in addition metal gaskets 221.By this, this light signal generation component 26 and this light signal receiving unit 28 just can see through circuit layout's electric connection of these metal gaskets 221 and this substrate 22.
This coil holder 30 is connected with this lens mount 14 of this optical coupling assembly 10 in separable mode, and in the present embodiment, this coil holder 30 has the 3rd front contraposition part 32 on the face of this lens mount 14, and on this lens mount 14, correspondence has the 4th front contraposition part 143.The 3rd front contraposition part 32 has two grooves, and the 4th front contraposition part 143 have two respectively with the 3rd front contraposition part 32 respectively this groove be complementary projection, use and see through this groove respectively and the corresponding respectively mode of this projection combination, this coil holder 30 is connected with this lens mount 14.
These light transmitting fibers 40 are located on this coil holder 30 and are positioned at a side of this optical coupling assembly 10, and its each one end end face is respectively towards this second lens section 142.These light transmitting fibers approach both sides most and are respectively four the first light transmitting fiber 40a and four the second light transmitting fiber 40b, and wherein, these first light transmitting fibers 40a difference correspondence is this second output lens 142a respectively, in order to receive light signal and to transfer to outside; These second light transmitting fibers 40b distinguishes respectively this second input lens 142b of correspondence, in order to the light signal from external transmission is delivered to this optical coupling assembly 10.
By this, see through this first time contraposition part 122 and these second time contraposition part 243 combination, by this first front contraposition part 141 and these second front contraposition part 124 combinations, and by after the 3rd front contraposition part 32 and the 4th front contraposition part 143 combinations, just can be when this optically coupled device of assembling, fast and accurately make these first input lens of light projection unit subtend 121a of this light signal generation component 26, make these first output lens of light receiver subtend 121b of this light signal receiving unit 28, make these second output lens of these first light transmitting fibers 40a subtend 142a, and make these second input lens of subtend 142b of these second light transmitting fibers 40b.In addition, the design that spacing between medium line M1, the M2 of the planar S that the central axis of this two projection of this second time contraposition part 243 is connected to form and this first storage tank 241 in the same plane with the cell wall D3, the D4 that wait storage tank 241,242 and this second storage tank 242 equates, in the time of can making this light signal generation component 26 and this light signal receiving unit 28 be arranged at respectively respectively in this storage tank, can see through the mode that sticks to this cell wall D1, D2, D3, D4 and reach the effect of quick location.
Refer to Fig. 9, when this light signal generation component 26 receives after electric signal, just convert light signal to and see through light projection unit and shoot to this optical coupling assembly 10, light signal is entered after the main body 12 of this optical coupling assembly 10 by this first input lens 121a, via these reflecting surface 16 reflections, leave main body 12 and enter this lens mount 14, then, by this second output lens 141a, leave this optical coupling assembly 10 and be incident upon this first light transmitting fiber 40a, and this light signal transmission is extremely outside.Otherwise, refer to Figure 10, when outside light signal transmission is to this second light transmitting fiber 40b, by this second light transmitting fiber, 40b shoots to this optical coupling assembly 10, now, light signal will enter this lens mount 14 and this main body 12 by this second input lens 142b, and via after these reflecting surface 16 reflections, leave this main body 12 convert electric signal to the light receiver of this light signal receiving unit 28 by this first output lens 121b.
By this, by above-mentioned explanation, can be learnt, this optically coupled device is the characteristic of micro volume transmitted in both directions not only, also has fast the effect of optical alignment and the high characteristic of optical alignment accuracy simultaneously.In addition, see through the condition design of these lens of above-mentioned the second lens section 142, more can make this optical coupling assembly 10 there is the scope of application of larger light signal generation component 26, and then make it have the advantage low to the required time of expending of optical alignment time, optical alignment accuracy is high.Moreover, the separable design of this lens mount 14, except can use the improved efficiency of Optical Fiber Transmission and collimation to related application such as light, also can make this optically coupled device can be according to the numerical aperture (number aperture) of selected light transmitting fiber 40, according to environment is set, system requirements are different from connection object, and can select to have the spherical lens of unlike material, radius-of-curvature or the lens mount of non-spherical lens, reach the function that promotes light conduction effect.
Should be noted that, the foregoing is only the better possible embodiments of the present invention, except the design simultaneously making with two kinds of photoelectric conversion components of light signal receiving unit and light signal generation component, also can only with single kind of photoelectric conversion component, reach on demand the object of receipts or luminous signal.In addition, such as apply the equivalent structure variation that instructions of the present invention and claim are done, ought to be included in the scope of the claims of the present invention.
Claims (10)
1. an optically coupled device, is characterized in that, includes:
Optically-coupled assembly, has body and lens mount; This body has first lens portion and reflecting surface; This lens mount is located on this body in separable mode, and has the second lens section; It is inner that light signal enters this optical coupling assembly by this first lens portion, after this reflecting surface reflection, by this second lens section, leaves this optical coupling assembly; Or enter this optical coupling assembly by this second lens section, after this reflecting surface reflection, by this first lens portion, leave this optical coupling assembly;
Photoelectric conversion module, is positioned at a side of this optical coupling assembly, and to should first lens portion; This photoelectric conversion module, in order to receive electric signal and to convert to after light news, outwards projects this light signal or receives light signal, then exporting after converting electric signal to; And
At least one light transmitting fiber, be positioned at a side of this optical coupling assembly, and one end-face is towards this second lens section; This light transmitting fiber is in order to the light signal from external transmission shot to this second lens section or to receive the light signal from this second lens section, and transfers to outside.
2. optically coupled device as claimed in claim 1, is characterized in that, this second lens section includes plural lenses, and these lens meet and to have following condition:
0.9≦α≦1.2；
Wherein, the center thickness that α is these eyeglasses and the ratio of edge thickness.
3. optically coupled device as claimed in claim 1, is characterized in that, this second lens section includes plural lenses, and these lens meet and to have following condition:
28°≦γ≦35°；
Wherein, the edge tangent line angle of cut that γ is these lens.
4. optically coupled device as claimed in claim 1, is characterized in that, this first lens portion includes at least one lens, and the minute surface of these lens is aspherical mirror.
5. optically coupled device as claimed in claim 1, is characterized in that, this second lens section includes at least one lens, and the minute surface of these lens is aspherical mirror.
6. optically coupled device as claimed in claim 1, is characterized in that, this lens mount has the first front contraposition part on the face of this body, and on this body correspondence there is the second front contraposition part; When this lens mount is connected with this body, this first front contraposition part is combined with this second front contraposition part.
7. optically coupled device as claimed in claim 1, is characterized in that, more comprises coil holder, be connected, and these light transmitting fibers is located on this coil holder in separable mode with this lens mount of this optical coupling assembly.
8. optically coupled device as claimed in claim 7, is characterized in that, this coil holder has the 3rd front contraposition part on the face of this lens mount, and on this lens mount, correspondence has the 4th front contraposition part; When this coil holder is connected with this lens mount, the 3rd front contraposition part is combined with the 4th front contraposition part.
9. optically coupled device as claimed in claim 1, is characterized in that, this photoelectric conversion module includes light signal generation component and light signal receiving unit; This light signal generation component has at least one smooth projection unit, in order to receive electric signal at this light signal generation component and to convert to after light news, this light signal is outwards projected; This light signal receiving unit has at least one light receiver, in order to receive light signal, then exports after converting electric signal to by this light signal receiving unit; In addition, this optically coupled device includes two light transmitting fibers, and wherein one in order to the light signal from external transmission is shot to this second lens section, and other one in order to receive the light signal from this second lens section, and transfer to outside.
10. optically coupled device as claimed in claim 9, is characterized in that, this light signal generation component is wall emission laser; This light signal receiving unit is photodiode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101136972 | 2012-10-05 | ||
| TW101136972A TWI460484B (en) | 2012-10-05 | 2012-10-05 | Optical coupling device (2) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103713366A true CN103713366A (en) | 2014-04-09 |
| CN103713366B CN103713366B (en) | 2015-11-18 |
Family
ID=50406475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310233937.9A Expired - Fee Related CN103713366B (en) | 2012-10-05 | 2013-06-13 | Optical coupling device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103713366B (en) |
| TW (1) | TWI460484B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107024746A (en) * | 2017-06-02 | 2017-08-08 | 青岛海信宽带多媒体技术有限公司 | A kind of optical module |
| WO2018042984A1 (en) * | 2016-08-31 | 2018-03-08 | 住友電気工業株式会社 | Optical connection structure |
| TWI684039B (en) * | 2017-09-01 | 2020-02-01 | 禾橙科技股份有限公司 | Optical communication module |
| CN112444926A (en) * | 2019-09-05 | 2021-03-05 | 美商祥茂光电科技股份有限公司 | Light turning mirror with tilted output interface to increase coupling efficiency and multi-channel optical sub-assembly using the same |
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| US20040202477A1 (en) * | 2003-02-17 | 2004-10-14 | Seiko Epson Corporation | Optical module and manufacturing method of the same, optical communication device, opto-electrical hybrid integrated circuit, circuit board, and electronic apparatus |
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| WO2018042984A1 (en) * | 2016-08-31 | 2018-03-08 | 住友電気工業株式会社 | Optical connection structure |
| CN107024746A (en) * | 2017-06-02 | 2017-08-08 | 青岛海信宽带多媒体技术有限公司 | A kind of optical module |
| TWI684039B (en) * | 2017-09-01 | 2020-02-01 | 禾橙科技股份有限公司 | Optical communication module |
| CN112444926A (en) * | 2019-09-05 | 2021-03-05 | 美商祥茂光电科技股份有限公司 | Light turning mirror with tilted output interface to increase coupling efficiency and multi-channel optical sub-assembly using the same |
| CN112444926B (en) * | 2019-09-05 | 2023-03-24 | 美商祥茂光电科技股份有限公司 | Light turning mirror with tilted output interface to increase coupling efficiency and multi-channel optical sub-assembly using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103713366B (en) | 2015-11-18 |
| TW201415108A (en) | 2014-04-16 |
| TWI460484B (en) | 2014-11-11 |
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