CN206804933U - It is a kind of by LD and the component of fiber coupling - Google Patents
It is a kind of by LD and the component of fiber coupling Download PDFInfo
- Publication number
- CN206804933U CN206804933U CN201720544071.7U CN201720544071U CN206804933U CN 206804933 U CN206804933 U CN 206804933U CN 201720544071 U CN201720544071 U CN 201720544071U CN 206804933 U CN206804933 U CN 206804933U
- Authority
- CN
- China
- Prior art keywords
- collimater
- optical fiber
- slow axis
- collimation device
- component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 21
- 238000010168 coupling process Methods 0.000 title claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 21
- 239000000835 fiber Substances 0.000 title claims abstract description 18
- 239000013307 optical fiber Substances 0.000 claims abstract description 42
- 238000009434 installation Methods 0.000 claims abstract description 30
- 239000011521 glass Substances 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
The utility model is a kind of by LD and the component of fiber coupling, including housing, LD seats in housing, lens sleeve and sleeve pipe, LD seats, lens sleeve and sleeve pipe are installed side by side successively, the LD seats include LD installation portions and collimater installation portion, the inner circumferential of the LD installation portions is provided with LD, the collimater installation portion is provided with fast axis collimation device and slow axis collimater, the fast axis collimation device is located between LD and the slow axis collimater, non-spherical lens is provided with the lens sleeve, the non-spherical lens is adjacent with slow axis collimater, glass bushing is provided with described sleeve pipe, optical fiber is provided with the glass bushing, the LD, fast axis collimation device, slow axis collimater, non-spherical lens and optical fiber are centrally located at same straight line.The utility model enters 905nmLD light source couples in optical fiber, and its actual coupling efficiency is in the light path scheme for higher than 80% or so, provide easy for system manufacturer, being easily assembled, minimizing.
Description
Technical field
Optical field is the utility model is related to, more particularly to by LD and fiber coupling component.
Background technology
In the application of following automatic sensing, 905nm LD（Laser diode）The stabilization propagated in atmosphere due to it
Property and the security of human eye is increasingly favored by ranging and signal transmission radar with system manufacturer.And 905nm
For LD due to its very high length-width ratio 200um × 10um, current solution light beam solution is mostly to light using heavy caliber object lens
Shu Jinhang shapings.But this increasingly can not meet topology requirement and the requirement of signal transmission power of product miniaturization.
So targetedly solve the problems, such as that the volume of Transmission system is extremely urgent.
Utility model content
It is high by LD and the component of fiber coupling that the purpose of this utility model is to provide a kind of small volume, coupling efficiency.
The utility model is achieved through the following technical solutions above-mentioned purpose：It is a kind of by LD and the component of fiber coupling, including
Housing, LD seats, lens sleeve and sleeve pipe in the housing, LD seats, lens sleeve and the sleeve pipe are pacified side by side successively
Dress, the LD seats include LD installation portions and collimater installation portion, and the inner circumferential of the LD installation portions is provided with LD, the collimater installation
Portion is provided with fast axis collimation device and slow axis collimater, the fast axis collimation device between the LD and the slow axis collimater,
Non-spherical lens is provided with the lens sleeve, the non-spherical lens is adjacent with slow axis collimater, and glass is provided with described sleeve pipe
Glass sleeve pipe, is provided with optical fiber in the glass bushing, the LD, fast axis collimation device, slow axis collimater, non-spherical lens and optical fiber
It is centrally located at same straight line.
Further, the extension of optical fiber goes out the glass bushing and has optical fiber jacket in the Surface coating of optical fiber, described
Optical fiber continues to extend optical fiber jacket and ferrule is arranged with the surface of optical fiber jacket, the ferrule and the optical fiber
The connecting portion of sheath is arranged with fiber optic protection sleeve pipe.
Further, the LD installation portions are annular shape, and the periphery of the LD installation portions contacts with the inner circumferential of the housing,
The collimater installation portion is semi-annular shape, and the collimater installation portion is provided with fast axis collimation device mounting surface and slow axis collimater
Mounting surface, the fast axis collimation device mounting surface are provided with the fast axis collimation device, and the slow axis collimater mounting surface is provided with institute
State slow axis collimater.
Further, the fast axis collimation device mounting surface is higher than the slow axis collimater mounting surface.
Further, the fine footpath of the optical fiber is 200um.
Further, the overall dimensions of the component are diameter 10mm, length 30mm.
Compared with prior art, LD and the component of fiber coupling beneficial effect are by the utility model：By 905nmLD's
Light source couples enter in optical fiber, and its actual coupling efficiency is higher than 80% or so, for system manufacturer provide easy, be easily assembled,
The light path scheme of miniaturization.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of LD seats.
Fig. 3 is coupling efficiency compares figure.
Sign in figure is as follows：1st, LD, 2, LD seats, 3, fast axis collimation device, 4, slow axis collimater, 5, lens sleeve, 6, non-
Spherical lens, 7, sleeve pipe, 8, glass bushing, 9, optical fiber, 10, optical fiber jacket, 11, fiber optic protection sleeve pipe, 12, ferrule, 13,
Housing, 21, LD installation portions, 22, collimater installation portion, 23, fast axis collimation device mounting surface, 24, slow axis collimater mounting surface.
Embodiment
Fig. 1 to Fig. 3 is referred to, it is a kind of by LD and the component of fiber coupling, including housing 13, the LD in housing 13
Seat 2, lens sleeve 5 and sleeve pipe 7, installation, LD seats 2 include the He of LD installation portions 21 side by side successively for LD seats 2, lens sleeve 5 and sleeve pipe 7
Collimater installation portion 22, LD installation portions 21 are annular shape, and the periphery of LD installation portions contacts with the inner circumferential of housing 13, LD installation portions
Inner circumferential is provided with LD1, and collimater installation portion 22 is semi-annular shape, and collimater installation portion 22 is provided with the He of fast axis collimation device mounting surface 23
Slow axis collimater mounting surface 24, fast axis collimation device mounting surface 23 are higher than slow axis collimater mounting surface 24, fast axis collimation device mounting surface
23 are provided with fast axis collimation device 3, and slow axis collimater mounting surface 24 is provided with slow axis collimater 4, and fast axis collimation device 3 is located at LD and slow
Between axle collimater 4.
Non-spherical lens 6 is provided with lens sleeve 5, non-spherical lens 6 is adjacent with slow axis collimater 4, and glass is provided with sleeve pipe 7
Glass sleeve pipe 8, glass bushing 8 is interior to be provided with optical fiber 9, and optical fiber 9 extends glass bushing 8 and has optical fiber shield in the Surface coating of optical fiber 9
Set 10, optical fiber 9 continues to extend optical fiber jacket 10 and ferrule 12, ferrule 12 is arranged with the surface of optical fiber jacket 9
Fiber optic protection sleeve pipe 11 is arranged with the connecting portion of optical fiber jacket 10.
LD, fast axis collimation device 3, slow axis collimater 4, non-spherical lens 6 and optical fiber 9 are centrally located at same straight line.
LD is 905nm TO encapsulation type LD, and the fine footpath of optical fiber is 200um, it is desirable to which end face polishes and plated film, optical fiber jacket are straight
Footpath is 2mm.The overall dimensions of component are diameter 10mm, length 30mm.
The assembling method of this component：
（1）LD is fixed with LD seats, connects driving power, obtains launching light beam, tests luminous efficiency.
（2）It is close to LD light-emitting areas and fast axis collimation device is installed to adjust LD fast axles, is fixed after obtaining optimal spot.
（3）Slow axis collimater is added at design attitude, position is carried out also according to facula measurement instrument and power meter situation
It is fixed after adjustment.
（4）Non-spherical lens is completed to the assembling with lens barrel with bonding mode simultaneously.
（5）According to the data and power data of spot detection instrument by step（3）The component assembly of completion is entered in lens barrel, fixed
Position.
（6）By the optical fiber components processed and step（5）The part adjustment power of completion reaches highest, bonds.
（7）Outermost optical fiber jacket is inserted in from optical fiber end, it is fixed.
Operation principle of the present utility model is：
For the LD with the larger angle of divergence, first light beam is compressed it in quick shaft direction using fast axis collimation device, compressed
Light beam afterwards compresses by slow axis collimater again, finally carries out shaping to light beam by a small-bore non-spherical lens, together
When this small-bore non-spherical lens light beam is coupled directly into optical fiber, finally realize 905nmLD light sources to the light beam of optical fiber
Coupling.Coupling efficiency is as shown in figure 3, coupling efficiency ＞ 80%.
Above-described is only some embodiments of the present utility model.For the person of ordinary skill of the art,
On the premise of not departing from the utility model and creating design, various modifications and improvements can be made, these belong to this practicality
New protection domain.
Claims (6)
- It is 1. a kind of by LD and the component of fiber coupling, it is characterised in that：LD seats including housing, in the housing, thoroughly Mirror sleeve cylinder and sleeve pipe, LD seats, lens sleeve and the sleeve pipe are installed side by side successively, and the LD seats include LD installation portions and collimater Installation portion, the inner circumferential of the LD installation portions are provided with LD, and the collimater installation portion is provided with fast axis collimation device and slow axis collimater, The fast axis collimation device is provided with non-spherical lens, institute between the LD and the slow axis collimater in the lens sleeve It is adjacent with slow axis collimater to state non-spherical lens, glass bushing is provided with described sleeve pipe, optical fiber, institute are provided with the glass bushing State LD, fast axis collimation device, slow axis collimater, non-spherical lens and optical fiber and be centrally located at same straight line.
- It is 2. according to claim 1 by LD and the component of fiber coupling, it is characterised in that：The extension of optical fiber goes out the glass Glass sleeve pipe simultaneously has optical fiber jacket in the Surface coating of optical fiber, and the optical fiber continues to extend optical fiber jacket and in the table of optical fiber jacket Surface cover is provided with ferrule, and the connecting portion of the ferrule and the optical fiber jacket is arranged with fiber optic protection sleeve pipe.
- It is 3. according to claim 1 by LD and the component of fiber coupling, it is characterised in that：The LD installation portions are annulus Shape, the periphery of the LD installation portions contact with the inner circumferential of the housing, and the collimater installation portion is semi-annular shape, the collimation Device installation portion is provided with fast axis collimation device mounting surface and slow axis collimater mounting surface, and the fast axis collimation device mounting surface is provided with institute Fast axis collimation device is stated, the slow axis collimater mounting surface is provided with the slow axis collimater.
- It is 4. according to claim 1 by LD and the component of fiber coupling, it is characterised in that：The fast axis collimation device mounting surface Higher than the slow axis collimater mounting surface.
- It is 5. according to claim 1 by LD and the component of fiber coupling, it is characterised in that：The fine footpath of the optical fiber is 200um。
- It is 6. according to claim 1 by LD and the component of fiber coupling, it is characterised in that：The overall dimensions of the component are Diameter 10mm, length 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720544071.7U CN206804933U (en) | 2017-05-17 | 2017-05-17 | It is a kind of by LD and the component of fiber coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720544071.7U CN206804933U (en) | 2017-05-17 | 2017-05-17 | It is a kind of by LD and the component of fiber coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206804933U true CN206804933U (en) | 2017-12-26 |
Family
ID=60741253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720544071.7U Expired - Fee Related CN206804933U (en) | 2017-05-17 | 2017-05-17 | It is a kind of by LD and the component of fiber coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206804933U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106959493A (en) * | 2017-05-17 | 2017-07-18 | 莱特巴斯光学仪器（镇江）有限公司 | It is a kind of by LD and the component of fiber coupling |
-
2017
- 2017-05-17 CN CN201720544071.7U patent/CN206804933U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106959493A (en) * | 2017-05-17 | 2017-07-18 | 莱特巴斯光学仪器（镇江）有限公司 | It is a kind of by LD and the component of fiber coupling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20171226 |