CN108508552A - A kind of light-receiving secondary module and optical module - Google Patents
A kind of light-receiving secondary module and optical module Download PDFInfo
- Publication number
- CN108508552A CN108508552A CN201810312534.6A CN201810312534A CN108508552A CN 108508552 A CN108508552 A CN 108508552A CN 201810312534 A CN201810312534 A CN 201810312534A CN 108508552 A CN108508552 A CN 108508552A
- Authority
- CN
- China
- Prior art keywords
- light
- secondary module
- receiving secondary
- filter plate
- module
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
Abstract
The present invention provides a kind of light-receiving secondary module and optical modules, wherein, light-receiving secondary module includes pipe cap and pedestal, it is packaged with lens, filter plate and photodiode between the pipe cap and the pedestal successively along optical propagation direction, the light-receiving secondary module further includes supporting rack, one end of support frame as described above connects the filter plate, and the other end connects the pipe cap and pedestal.It include above-mentioned light-receiving secondary module in optical module provided by the invention.Filter plate is set to inside light-receiving secondary module by the application, is specifically set between lens and photodiode, and the space pressure between fiber stub and light-receiving secondary module can be effectively relieved, and takes full advantage of the inner space of light-receiving secondary module.
Description
Technical field
This disclosure relates to optical module technical field more particularly to a kind of light-receiving secondary module and optical module.
Background technology
Optical module is that opto-electronic conversion and/or the important devices of electro-optic conversion are realized in optical fiber telecommunications system, can be divided into ROSA
(full name in English：Receiver Optical Subassembly, light-receiving secondary module), TOSA (full name in English：
Transmitter Optical Subassembly, light emitting secondary module) and BOSA (full name in English：Bi-dirictional
Optical Sub-Assembly, the integrated module of optical transceiver), filtering chip architecture is usually provided in ROSA and BOSA, to
The incident light of uncorrelated wavelength is filtered out, electricity conversion is improved.Referring to FIG. 1, showing a kind of typical light-receiving time mould
The structural schematic diagram of block.As seen from Figure 1, it is packaged with lens 31 and photodiode 32, filter plate in the light-receiving secondary module 30
40 are set between fiber stub 20 and light-receiving secondary module 30, perpendicular to the direction of light incidence.
The photosurface of photodiode 32 has capacitive, and the area of photosurface is bigger, and capacitive is higher, easier influence light
The high-speed transfer of secondary module is received, therefore, with the continuous improvement of light-receiving secondary module transmission rate, photodiode 32 is photosensitive
The area in face is gradually reduced so that the focal length light path of 31 both sides of lens also changes therewith.Lens 31 and photodiode 32
The distance between increase therewith, and the distance between lens 31 and fiber stub 20 then reduce therewith, limit filter plate 40
Installation space.
Invention content
A kind of light-receiving secondary module and optical module are provided in the embodiment of the present invention, are set with solving filter plate in the prior art
The problem of setting limited space.
The present invention provides a kind of light-receiving secondary module, including pipe cap and pedestal, edge between the pipe cap and the pedestal
It optical propagation direction and is packaged with lens, filter plate and photodiode successively, the light-receiving secondary module further includes supporting rack, institute
The one end for stating supporting rack connects the filter plate, and the other end connects the pipe cap and pedestal.
The present invention also provides a kind of optical module, the optical module includes above-mentioned light-receiving secondary module.
The application's has the beneficial effect that：
The present invention provides a kind of light-receiving secondary module and optical modules, wherein and light-receiving secondary module includes pipe cap and pedestal,
It is packaged with lens, filter plate and photodiode, the light between the pipe cap and the pedestal successively along optical propagation direction
It further includes supporting rack to receive secondary module, and one end of support frame as described above connects the filter plate, and the other end connects the pipe cap and bottom
Seat.The integrated module of optical transceiver and optical module include above-mentioned light-receiving secondary module.Filter plate is set to light-receiving by the application
Inside modules are specifically set between lens and photodiode, can be effectively relieved fiber stub and light-receiving secondary module it
Between space pressure, and take full advantage of the inner space of light-receiving secondary module.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the present invention
Example, and be used to explain the principle of the present invention together with specification.
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of operating diagram of typical light-receiving secondary module；
Fig. 2 is a kind of operating diagram of light-receiving secondary module provided by the embodiments of the present application；
Fig. 3 is a kind of light-receiving sub-module structure schematic diagram provided by the embodiments of the present application；
Fig. 4 is the structural schematic diagram of another light-receiving secondary module provided by the embodiments of the present application；
Fig. 5 is a kind of structural schematic diagram of optical module provided by the embodiments of the present application；
Symbolic indication：
20- fiber stubs, 30- light-receivings secondary module, 31- lens, 32- photodiodes, 33- pipe caps, 331- bilayers connect
Receive window, 34- pedestals, 35- supporting racks, 351- support portions, 352- binding parts, 40- filter plates, 50- prisms, 60- light emittings time
Module.
Specific implementation mode
In order to make those skilled in the art more fully understand the technical solution in the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without making creative work, should all belong to protection of the present invention
Range.
For filter plate installation space in the prior art be limited problem, this application provides a kind of light-receiving secondary module,
The integrated module of optical transceiver and optical module, core concept are：To be set to originally fiber stub 20 and light-receiving secondary module 30 it
Between filter plate 40, be arranged inside light-receiving secondary module 30, in this way, i.e. alleviate fiber stub 20 and light-receiving secondary module 30
Between space pressure, and take full advantage of the inner space of light-receiving secondary module 30, can effectively solve the problem that setting for filter plate 40
Meter demand.It is described in detail in the following with reference to the drawings and specific embodiments.
Referring to FIG. 2, showing a kind of operating diagram of light-receiving secondary module provided by the embodiments of the present application.By Fig. 2
As it can be seen that the light-receiving secondary module, including pipe cap 33 and pedestal 34, along light propagation side between the pipe cap 33 and the pedestal 34
To being packaged with lens 31, filter plate 40 and photodiode 32 successively.The optical signal that fiber stub 20 emits is coupled into light and connects
Secondary module 30 is received, electric signal transmission is converted into photodiode 32 again through lens 31, filter plate 40 and goes out.
With the continuous improvement of light-receiving secondary module transmission rate, the area of 32 photosurface of photodiode is gradually reduced.
In the present embodiment, the photosurface of photodiode 32 is 20-30 microns, relative to making between lens 31 and photodiode 32
Distance increase, the distance between lens 31 and fiber stub 20 then reduce therewith, limit the installation space of filter plate 40.Base
In above application scene, the present embodiment, filter plate 40 is set to inside light-receiving secondary module 30, be specifically set to lens 31 with
Between photodiode 32, the space pressure between fiber stub 20 and light-receiving secondary module 30 can be effectively relieved, and fill
Divide the inner space that light-receiving secondary module is utilized.
Referring to FIG. 3, showing a kind of structural schematic diagram of light-receiving secondary module provided by the embodiments of the present application.By Fig. 3
As it can be seen that the light-receiving secondary module 30 includes pipe cap 33 and pedestal 34, and the lens being encapsulated between pipe cap 33 and pedestal 34
31, filter plate 40 and photodiode 32.In addition, further including supporting rack 35, supporting rack 35 is symmetrical arranged centered on lens 31,
One end connects the filter plate 40, and the other end connects the pipe cap 33 and pedestal 34.The supporting rack 35 includes 351 He of support portion
Binding part 352, the support portion 351 are fixedly connected with the inner wall of the pipe cap 33, the binding part 352 and the filter plate 40
It is fixedly connected.In the present embodiment, support portion 351 can be fixed on the inner wall of pipe cap 33 by modes such as welding, gluings, binding part
352 can be fixedly connected by way of gluing with filter plate 40.In the present embodiment, side wall and the binding part 352 of filter plate 40
Side wall is bonding, and certainly, in the application other embodiment, filter plate 40 can also be viscous with 352 phase of binding part by other surfaces
The mode of conjunction is fixed, and only need to ensure that the area of filter plate 40 should be enough to cover the light through lens 31.
Referring to FIG. 4, showing the structural schematic diagram of another light-receiving secondary module provided by the embodiments of the present application.By scheming
4 as it can be seen that the pipe cap 33 is equipped with two-layer receiver window 331, and the two-layer receiver window 331 is equipped with perforative mounting hole, institute
It states lens 31 and the filter plate 40 is sequentially fixed on the mounting hole.In other preferred embodiments of the application, two-layer receiver
The design of window 331 is an integral molding structure, and lens 31 and filter plate 40 are embedded in mounting hole successively, to improve 31 He of lens
The fixing intensity of the fixed component and pipe cap 33 of filter plate 40.
Based on the light-receiving secondary module that above-described embodiment provides, the application other embodiment also provides a kind of optical module.Please
With reference to figure 5, it show a kind of structural schematic diagram of optical module provided by the embodiments of the present application.As seen from Figure 5, which includes
Prism 50, light-receiving secondary module 30 and light emitting secondary module 60, prism 50 can change the light that fiber stub 20 emits light
Road so that optical signal is coupled into inside the light-receiving secondary module 30 being oppositely arranged, and then realizes opto-electronic conversion；In addition, light is sent out
Fiber stub 20 can be directly coupled by penetrating the electric signal of the transmitting of secondary module 60, to realize electro-optic conversion.Certainly, this implementation
The integrated module of optical transceiver provided in example is only a kind of schematic structure, light-receiving secondary module 30 and light emitting secondary module 60
Setting quantity and arragement direction etc. can accordingly be adjusted according to the concrete model of optical module and actual demand.
In the present embodiment, filter plate 40 is similarly provided inside light-receiving secondary module 30, is specifically set to lens and photoelectricity
Between diode, to which the space pressure between fiber stub 20 and light-receiving secondary module 30 be effectively relieved, and make full use of
The inner space of light-receiving secondary module 30.In addition, the embodiment of the present application also provides a kind of optical module, the optical module includes above-mentioned
The light-receiving secondary module 30 that embodiment provides.
Each embodiment in this specification is described in a progressive manner, identical similar portion between each embodiment
Point just to refer each other, and each embodiment focuses on the differences from other embodiments.Especially for device or
For system embodiment, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to method
The part of embodiment illustrates.Apparatus and system embodiment described above is only schematical, wherein as separation
The unit of part description may or may not be physically separated, the component shown as unit can be or
It can not be physical unit, you can be located at a place, or may be distributed over multiple network units.It can be according to reality
Border needs to select some or all of module therein to achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art
Without creative efforts, you can to understand and implement.
It the above is only the specific implementation mode of the present invention, it is noted that those skilled in the art are come
It says, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (6)
1. a kind of light-receiving secondary module, which is characterized in that including pipe cap and pedestal, along light between the pipe cap and the pedestal
The direction of propagation is packaged with lens, filter plate and photodiode successively, and the light-receiving secondary module further includes supporting rack, the branch
One end of support connects the filter plate, and the other end connects the pipe cap or pedestal.
2. light-receiving secondary module according to claim 1, which is characterized in that support frame as described above includes support portion and bonding
Portion, the support portion are fixedly connected with the inner wall of the pipe cap, and the binding part is fixedly connected with the filter plate.
3. light-receiving secondary module according to claim 1, which is characterized in that the photosurface of the photodiode is 20-
30 microns.
4. light-receiving secondary module according to claim 1, which is characterized in that the pipe cap is equipped with two-layer receiver window, institute
It states two-layer receiver window and is equipped with perforative mounting hole, the lens and the filter plate are sequentially fixed on the mounting hole.
5. light-receiving secondary module according to claim 4, which is characterized in that the two-layer receiver window is integrally formed knot
Structure.
6. a kind of optical module, which is characterized in that the optical module includes the light-receiving time mould described in claim 1-5 any one
Block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810312534.6A CN108508552A (en) | 2018-04-09 | 2018-04-09 | A kind of light-receiving secondary module and optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810312534.6A CN108508552A (en) | 2018-04-09 | 2018-04-09 | A kind of light-receiving secondary module and optical module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108508552A true CN108508552A (en) | 2018-09-07 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810312534.6A Pending CN108508552A (en) | 2018-04-09 | 2018-04-09 | A kind of light-receiving secondary module and optical module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112230351A (en) * | 2020-10-27 | 2021-01-15 | 青岛海信宽带多媒体技术有限公司 | Optical module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101918872A (en) * | 2007-12-26 | 2010-12-15 | 株式会社日立制作所 | Optical transmission and reception module |
| CN201965267U (en) * | 2011-03-01 | 2011-09-07 | 武汉昱升光器件有限公司 | TO tube core with built-in filter |
| CN203012190U (en) * | 2012-12-26 | 2013-06-19 | 厦门三优光电股份有限公司 | High-sensitivity tail-fiber type bi-directional transmitter optical subassembly for gigabit-capable passive optical network |
| CN205581348U (en) * | 2016-05-11 | 2016-09-14 | 福州高意通讯有限公司 | Tunable ROSA of wavelength |
-
2018
- 2018-04-09 CN CN201810312534.6A patent/CN108508552A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101918872A (en) * | 2007-12-26 | 2010-12-15 | 株式会社日立制作所 | Optical transmission and reception module |
| CN201965267U (en) * | 2011-03-01 | 2011-09-07 | 武汉昱升光器件有限公司 | TO tube core with built-in filter |
| CN203012190U (en) * | 2012-12-26 | 2013-06-19 | 厦门三优光电股份有限公司 | High-sensitivity tail-fiber type bi-directional transmitter optical subassembly for gigabit-capable passive optical network |
| CN205581348U (en) * | 2016-05-11 | 2016-09-14 | 福州高意通讯有限公司 | Tunable ROSA of wavelength |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112230351A (en) * | 2020-10-27 | 2021-01-15 | 青岛海信宽带多媒体技术有限公司 | Optical module |
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Application publication date: 20180907 |