CN208672854U - A kind of plug-in laser assembly - Google Patents
A kind of plug-in laser assembly Download PDFInfo
- Publication number
- CN208672854U CN208672854U CN201821440526.1U CN201821440526U CN208672854U CN 208672854 U CN208672854 U CN 208672854U CN 201821440526 U CN201821440526 U CN 201821440526U CN 208672854 U CN208672854 U CN 208672854U
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- China
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- pipe cap
- lens
- pipe
- tube body
- plug
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Abstract
The utility model relates to technical field of photo communication, disclose a kind of plug-in laser assembly, including TO part, collimation lens, adapter and connection housing.Wherein, adapter includes coupling tube body, fiber adapters pipe, ceramic sleeve, fiber stub and self-focusing lens；TO part includes TO pedestal, LD chip and TO pipe cap on TO pedestal, and TO pipe cap is equipped with collimation lens.It is incident on the self-focusing lens of adapter after the collimated collimated of the laser of LD chip emission, is converged in the fibre core of fiber stub through self-focusing lens focusing.The application combines collimation lens and self-focusing lens, realizes parallel optical coupling, reduces coupling difficulty, effectively increases coupling efficiency, also ensures the consistency of size of components after coupling.
Description
Technical field
The utility model belongs to technical field of photo communication, is related to a kind of plug-in laser assembly.
Background technique
Plug-in laser assembly generally comprises optical fiber connector housing and adapter, and the TO coupled with adapter
Part.In the prior art, TO part generally uses globe lens to be packaged on TO pipe cap, converges to the light of the LD chip emission in TO suitable
On the fibre core of orchestration inner fiber lock pin.Since packaging technology limits, the focal length of the globe lens optically focused of each TO encapsulation differs greatly,
It needs to be adjusted repeatedly by adjusting ring to optical coupling, on the one hand increases the difficulty that TO is coupled to adapter, on the other hand also lead
It has caused the overall length dimension of component after coupling irregular, has influenced the use of component.
Summary of the invention
In order to solve the above problems, the utility model proposes, and a kind of plug-in laser assembly is dropped using parallel optical coupling
Low coupling difficulty, effectively increases coupling efficiency, also ensures the consistency of size of components after coupling.
In order to achieve the above object, technical solution provided by the utility model are as follows: a kind of plug-in laser assembly, packet
It includes:
TO part, the TO part include TO pedestal, LD chip and TO pipe cap on TO pedestal；The TO pipe cap will
The LD chip is sealed on TO pedestal；
Collimation lens is installed on the TO part, and the focus of the collimation lens is located at the light emitting surface of the LD chip
On；
Adapter, including coupling tube body, fiber adapters pipe, ceramic sleeve, fiber stub and self-focusing lens；The coupling
Tube body has inner via hole, and the one end for coupling tube body has the accommodation groove coupled with the TO part, and the other end has and the optical fiber
The groove of adapter tube close-fitting；The inner via hole of the coupling tube body is embedded in institute along optical axis between the internal diameter of the fiber adapters pipe
State self-focusing lens and fiber stub；The ceramic sleeve is sheathed between the fiber stub and fiber adapters pipe；It is described from
Condenser lens converges to directional light in the fibre core of the fiber stub；
Housing is connected, is sheathed on outside the adapter, is formed together optical fiber connector with the adapter.
Further, the TO pipe cap has the light window opposite with the LD chip light emitting surface, the collimation lens
On the light window of the TO pipe cap.
Further, the TO pipe cap is flat window pipe cap, has the plane window opposite with the LD chip light emitting surface；
It is also arranged with TO tube body outside the TO pipe cap, the collimation lens is installed on the TO tube body.
Further, the TO tube body position opposite with the plane window of the flat window pipe cap is equipped with light hole, described
Light hole is equipped with lens mounting groove close to the position of flat window pipe cap, and the collimation lens is set in the lens mounting groove.
It further, further include optoisolator, top of the TO tube body far from flat window pipe cap is installed equipped with optoisolator
Slot, for installing the optoisolator.
Further, the connection housing is SC type or FC type.
Further, the self-focusing lens end face opposite with the fiber stub is to have an acute angle with optical axis
Inclined surface, the end face of fiber stub corresponding thereto is inclined surface in parallel.
The utility model has the beneficial effects that the application combines collimation lens and self-focusing lens, parallel optocoupler is realized
It closes, reduces coupling difficulty, effectively increase coupling efficiency, also ensure the consistency of size of components after coupling.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is 1 structural schematic diagram of the application plug-in laser assembly embodiment；
Fig. 2 is 1 light path schematic diagram of embodiment；
Fig. 3 is 2 structural schematic diagram of the application plug-in laser assembly embodiment；
Fig. 4 is TO pipe structure schematic diagram in embodiment 2.
Appended drawing reference: 10, TO part；11, TO pedestal；12, photoelectric chip；13, TO pipe cap；14, flat window pipe cap；20, it collimates
Lens；30, adapter；31, tube body is coupled；311, inner via hole；312, accommodation groove；313, groove；32, fiber adapters pipe；33, it makes pottery
Insulator cylinder；34, fiber stub；341, fibre core；35, self-focusing lens；40, housing is connected；50, TO tube body；51, light hole；52,
Lens mounting groove；53, isolator mounting groove.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
Embodiment 1
Please refer to Fig. 1 and 2, the plug-in laser assembly of the present embodiment, including TO part 10, collimation lens 20, adapter
30 and connection housing 40.Wherein, TO part 10 includes TO pedestal 11, LD chip 12 and TO pipe cap 13 on TO pedestal 11,
LD chip 12 is sealed on TO pedestal 11 by TO pipe cap 13.Collimation lens 20 is installed on above-mentioned TO part 10, and focus is located at LD
On the light emitting surface of chip 12, exported after being collimated to the laser that LD chip 12 emits.In the embodiment, TO pipe cap 13 has
The light window opposite with 12 light emitting surface of LD chip, collimation lens 20 is set on the light window of the TO pipe cap 13, with TO pipe cap 13
LD chip 12 is packaged on TO pedestal 11 together.
In the embodiment, adapter 30 includes coupling tube body 31, fiber adapters pipe 32, ceramic sleeve 33, fiber stub 34
With self-focusing lens 35.Wherein, coupling tube body 31 has inner via hole 311, and one end of coupling tube body 31 has to be coupled with TO part 10
Accommodation groove 312, the other end has groove 313 with 32 close-fitting of fiber adapters pipe.In the inner via hole 311 for coupling tube body 31 to light
Between the internal diameter of fine adapter tube 32, above-mentioned fiber stub 34 and self-focusing lens 35,33 sets of above-mentioned ceramic sleeve are embedded in along optical axis
Between fiber stub 34 and fiber adapters pipe 32, directional light is converged to the fibre core of fiber stub 34 by self-focusing lens 35
In 341.Connection housing 40 is sheathed on outside adapter 30, is formed together optical fiber connector with adapter 30.
Specifically, coupling tube body 31, self-focusing lens 35, fiber stub 34, ceramic sleeve 33 and 32 groups of fiber adapters pipe
Dress is adapter 30, and the TO part 10 for being packaged with collimation lens 20 is assembled to the accommodation groove 312 of coupling 31 lower end of tube body.The accommodating
The internal diameter of slot 312 is slightly larger than the outer diameter of TO pipe cap 13, and the outer diameter for coupling 31 lower end of tube body is equal with the outer diameter of TO pedestal 11, by TO
Pipe cap 13 is placed in above-mentioned accommodation groove 312, TO pedestal 11 with couple 31 lower end of tube body by being welded and fixed or viscose glue is fixed.
The collimated lens 20 of the laser that LD chip 12 emits are incident on the self-focusing lens 35 of adapter 30 after collimating, through self-focusing lens
35 focusing converge in the fibre core 341 of fiber stub 34, complete the coupling of laser.Connection housing 40 is sheathed on adapter again
Outside 30, naturally it is also possible to connection housing 40 first be coupled TO part 10 with adapter 30 again after the assembly is completed.
Since collimation lens and self-focusing lens is utilized between TO part and adapter, parallel optical coupling, a side are realized
Face reduces coupling difficulty, effectively increases coupling efficiency；Simultaneously because parallel optical coupling, it is only necessary to be put down in vertical with optical axis
The focal adjustment for not needing to carry out optical axis direction to light is adjusted in face, so can effectively ensure that component ruler after coupling
Very little consistency.
Embodiment 2
Fig. 3 and 4 are please referred to, unlike the first embodiment, is also arranged with TO tube body 50 outside TO pipe cap in the embodiment, on
Collimation lens 20 is stated to be installed on TO tube body 50.TO pipe cap is flat window pipe cap 14, is had opposite with 12 light emitting surface of LD chip
Plane window.Specifically, the position opposite with the plane window of flat window pipe cap 14 of TO tube body 50 is equipped with light hole 51, the light hole
51 are equipped with lens mounting groove 52 close to the position of flat window pipe cap 14, and collimation lens 20 is set in the lens mounting groove 52.It will collimation
Lens are set to outside TO pipe cap, can substantially reduce the encapsulation difficulty of TO.
The embodiment can also include optoisolator (not shown), top of the above-mentioned TO tube body 50 far from flat window pipe cap 14
End is equipped with optoisolator mounting groove 53, for installing the optoisolator.Optoisolator allows the light forward direction of LD chip emission to pass through,
Completely cut off the backlight that adapter returns, avoids backlight from entering LD chip, influence system stability and laser-quality.
In the various embodiments described above, housing 40 is connected using SC connector housing, naturally it is also possible to using FC type etc.
Other types connector jacket.As shown in Fig. 2, in the various embodiments described above, the end opposite with fiber stub 34 of self-focusing lens 35
Face is the inclined surface for having an acute angle with optical axis, and the end face of fiber stub 34 corresponding thereto is inclination in parallel
The part return light of two end face reflections opposite between self-focus lens 35 and fiber stub 34 is reflexed to deviation master by face
The direction of optical path avoids return light from influencing system and stablizes.The angle of the inclined surface and optical axis is preferably between 6 degree to 15 degree.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments without departing from the scope of the technological thought of the present invention' completely.This invention
Technical scope is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (7)
1. a kind of plug-in laser assembly characterized by comprising
TO part, the TO part include TO pedestal, LD chip and TO pipe cap on TO pedestal；The TO pipe cap will be described
LD chip is sealed on TO pedestal；
Collimation lens is installed on the TO part, and the focus of the collimation lens is located on the light emitting surface of the LD chip；
Adapter, including coupling tube body, fiber adapters pipe, ceramic sleeve, fiber stub and self-focusing lens；The coupling tube body
With inner via hole, the one end for coupling tube body has the accommodation groove coupled with the TO part, and the other end has and the fiber adapters
The groove of pipe close-fitting；The inner via hole of the coupling tube body is sequentially embedded institute along optical axis between the internal diameter of the fiber adapters pipe
State self-focusing lens and fiber stub；The ceramic sleeve is sheathed between the fiber stub and fiber adapters pipe；It is described from
Condenser lens converges to directional light in the fibre core of the fiber stub；
Housing is connected, is sheathed on outside the adapter, is formed together optical fiber connector with the adapter.
2. plug-in laser assembly according to claim 1, it is characterised in that: the TO pipe cap has and the LD core
The opposite light window of piece light emitting surface, the collimation lens are set on the light window of the TO pipe cap.
3. plug-in laser assembly according to claim 1, it is characterised in that: the TO pipe cap is flat window pipe cap, tool
There is the plane window opposite with the LD chip light emitting surface；TO tube body, the collimation lens are also arranged with outside the TO pipe cap
It is installed on the TO tube body.
4. plug-in laser assembly according to claim 3, it is characterised in that: the TO tube body and the flat window pipe cap
The opposite position of plane window be equipped with light hole, the light hole is equipped with lens mounting groove, institute close to the position of flat window pipe cap
Collimation lens is stated in the lens mounting groove.
5. plug-in laser assembly according to claim 4, it is characterised in that: it further include optoisolator, the TO pipe
Body is equipped with optoisolator mounting groove far from the top of flat window pipe cap, for installing the optoisolator.
6. plug-in laser assembly according to claim 1-5, it is characterised in that: the connection housing is SC
Type or FC type.
7. plug-in laser assembly according to claim 1-5, it is characterised in that: the self-focusing lens with
The opposite end face of the fiber stub is the inclined surface for having an acute angle with optical axis, the end face of fiber stub corresponding thereto
For inclined surface in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821440526.1U CN208672854U (en) | 2018-09-04 | 2018-09-04 | A kind of plug-in laser assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821440526.1U CN208672854U (en) | 2018-09-04 | 2018-09-04 | A kind of plug-in laser assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208672854U true CN208672854U (en) | 2019-03-29 |
Family
ID=65841948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821440526.1U Expired - Fee Related CN208672854U (en) | 2018-09-04 | 2018-09-04 | A kind of plug-in laser assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208672854U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129956A (en) * | 2019-12-07 | 2020-05-08 | 武汉高跃科技有限责任公司 | Multi-chip pulse tail laser assembly |
| CN112987194A (en) * | 2019-12-13 | 2021-06-18 | 讯芯电子科技（中山）有限公司 | Optical communication module |
| CN113917614A (en) * | 2021-09-15 | 2022-01-11 | 武汉光迅科技股份有限公司 | Optical module |
| WO2023024847A1 (en) * | 2021-08-24 | 2023-03-02 | 华为技术有限公司 | Optical communication device and assembly method therefor |
-
2018
- 2018-09-04 CN CN201821440526.1U patent/CN208672854U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129956A (en) * | 2019-12-07 | 2020-05-08 | 武汉高跃科技有限责任公司 | Multi-chip pulse tail laser assembly |
| CN112987194A (en) * | 2019-12-13 | 2021-06-18 | 讯芯电子科技（中山）有限公司 | Optical communication module |
| WO2023024847A1 (en) * | 2021-08-24 | 2023-03-02 | 华为技术有限公司 | Optical communication device and assembly method therefor |
| CN113917614A (en) * | 2021-09-15 | 2022-01-11 | 武汉光迅科技股份有限公司 | Optical module |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190329 Termination date: 20200904 |
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| CF01 | Termination of patent right due to non-payment of annual fee |