CN106526764A - Optical structure applied to COB encapsulation - Google Patents
Optical structure applied to COB encapsulation Download PDFInfo
- Publication number
- CN106526764A CN106526764A CN201611244280.6A CN201611244280A CN106526764A CN 106526764 A CN106526764 A CN 106526764A CN 201611244280 A CN201611244280 A CN 201611244280A CN 106526764 A CN106526764 A CN 106526764A
- Authority
- CN
- China
- Prior art keywords
- coupling device
- corner cube
- cube prism
- filter plate
- film
- 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.)
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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
- G02B6/4246—Bidirectionally operating package structures
-
- 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
- G02B6/4251—Sealed packages
Abstract
The present invention discloses an optical structure applied to COB encapsulation. The structure comprises a laser emission terminal, a coupling device and a receiving terminal. The coupling device is fitted with a wave length beam splitting film, after the laser emission terminal emits optical signals, the optical signals are incident on the wave length beam splitting film through the coupling device, the first wave length beam is reflected by the wave length beam splitting film and coupled in the fiber through the coupling device, and the second wave length beam emitted by the fiber is incident on the wave length beam splitting film through the coupling device to transmit and focus on the receiving terminal. The structure is simple, and the cost is low.
Description
Technical field
The present invention relates to the optical transceiver module field in Fibre Optical Communication Technology, in particular it relates to one kind is applied to COB encapsulation
In optical texture.
Background technology
In current optical communication applications field, traditional module be using BOB technologies (BOSA on Board), will
BOSA (Bi-Directional Optical Sub-Assembly) is placed on PCBA (Printed Circuit Board
Assembly on), then module is formed by certain packing forms.There are problems in this mode, supply chain is longer, from
Chip TO (Transistor-Outline) BOSA PCBA Module, intermediate link are excessive, under exploiting layer by layer, cause
Cost is raised；Operation is more in addition, complex process, long the production cycle, manages also cumbersome, causes cost increase.So
Demand under, in the urgent need to a kind of simple structure, technology difficulty is low and the new technique new construction that is easily achieved is original to replace
Module.
And growing with communication field, traditional transmission technology has been difficult to meet transmission capacity and speed
Require, for preventing the deficiency of broadband resource, common carrier and service suppliers from carrying out to planning express network agreement of new generation
Deployment, this is accomplished by corresponding high-speed parallel optical transceiver module to meet the data transportation requirements of high density two-forty, and while
The volume of equipment vendors' modulus block again is done less and less, and cost is lower.Under such environmental condition, different manufacturers are all competitively sought
Look for new technique to break through cost bottleneck.
In sum, present inventor has found above-mentioned technology extremely during the present application technical scheme is realized
There is following technical problem less：
In the prior art, there is complex structure, relatively costly technical problem in existing optical transceiver module.
The content of the invention
The invention provides a kind of optical texture being applied in COB encapsulation, solves existing optical transceiver module and exists
Complex structure, relatively costly technical problem realize simple structure, lower-cost technique effect.
For solving above-mentioned technical problem, this application provides a kind of optical texture being applied in COB encapsulation, the structure
Including：
Laser emission end, coupling device, receiving terminal；Wavelength spectro-film is fitted with the coupling device, and wherein, laser is sent out
After penetrating end transmitting optical signals, optical signal is incided on wavelength spectro-film through coupling device, and first wave length light beam is by wavelength point
Light film reflects, and then focuses on through coupling device and is coupled in optical fiber；Optical fiber sends second wave length light beam and enters through coupling device
Transmission focusing is mapped on wavelength spectro-film to receiving terminal.
Wherein, coupling device is used for realizing the light beam light splitting function of different wave length that coupling device to be provided with convergence curved surface, uses
Coupled in transmitting terminal light beam is converged.Transmitting terminal can be laser instrument LD, for launching optical signal, transmitting terminal coupling device,
For in the optical signal coupled into optical fibres of launching LD, receiving terminal PD, for receiving optical signal and being converted to photoelectric current, receiving terminal
Coupling device, for being coupled to PD by optical signal.
Further, the coupling device is specially planoconvex lenss, and wavelength spectro-film is fitted in the plane of planoconvex lenss,
Optical signal is injected from the convex surface of planoconvex lenss.
Further, the coupling device is specifically included：The plane of planoconvex lenss and filter plate, filter plate and planoconvex lenss
Connection, wavelength spectro-film are fitted in the plane of planoconvex lenss, and optical signal is injected from the convex surface of planoconvex lenss.
Further, the angle of the filter plate is 8～20 degree, or angle is 45 degree.When 8～20 degree, plating in this angle
The Film Design of film is easier to realize that optical texture is various under the angle when 45 degree, debugs simpler.
Further, the entering light end face and light output end of the coupling device is coated with anti-reflection film.Anti-reflection film can be effective
Ground reduces end face reflection, improves transmitance, reduces loss.
Further, the structure also includes pcb board, and the coupling device is fixed on pcb board.Encapsulated using COB,
Structure conduction or non-conductive adhesive are sticked on interconnection substrates, wire bonding is then carried out and is realized its electrical connection.
Further, the optical texture also includes bracing frame, and support frame as described above is for carrying out to the coupling device
Support.
Further, the coupling device also includes：Second filter plate.Second filter plate plays a part of light beam isolation,
Improve the isolation to non-desired wavelengths.
Further, the coupling device is specifically included：First planoconvex lenss, the second planoconvex lenss, the first corner cube prism,
Second corner cube prism, filter plate, wherein, the plane of the first planoconvex lenss is fitted with the first side of the first corner cube prism, and second
The plane of planoconvex lenss is fitted with the second side of the first corner cube prism, and wavelength spectro-film is fitted in the 3rd of the first corner cube prism
On side, the side of the second corner cube prism is fitted with the 3rd side of the first corner cube prism, and filter plate is located at receiving terminal and second
Between corner cube prism.
Further, the coupling device is specifically included：3rd planoconvex lenss, the 4th planoconvex lenss, the 3rd corner cube prism,
4th corner cube prism, filter plate, wherein, the plane of the 3rd planoconvex lenss is fitted with the first side of the 3rd corner cube prism, and the 4th
The plane of planoconvex lenss is fitted with the first side of the 4th corner cube prism, second side and the 4th right-angled edge of the 3rd corner cube prism
The second side laminating of mirror, wavelength spectro-film are fitted in the second side of the 3rd corner cube prism and the second side of the 4th corner cube prism
Between face；Filter plate is located between receiving terminal and the 4th corner cube prism.
One or more technical schemes that the application is provided, at least have the following technical effect that or advantage：
Optical texture in the application, coupling device can both realize the focusing coupling function of transmitting terminal, can realize again
The focusing coupling function of receiving terminal, the optical signal sent from transmitting terminal are coupled in optical fiber after coupling device, and from optical fiber
The optical signal of outgoing is coupled on receiving terminal after coupling device；The optical texture is compact, effectively can reduce volume and
Reduces cost, debugs simple and convenient；Wherein, as device used is few, low, coupling efficiency height is lost, and as all devices are pacified
It is mounted on same datum level, has good temperature performance, be conducive to the long range propagation of optical signal, with practical feasibility.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes of the application
Point, do not constitute the restriction to the embodiment of the present invention；
Fig. 1 is the schematic top plan view of optical texture in the embodiment of the present application one；
Fig. 2 is the schematic front view of optical texture in the embodiment of the present application one；
Fig. 3 is the schematic top plan view of optical texture in the embodiment of the present application two；
Fig. 4 is the structural representation of optical texture in the embodiment of the present application three；
Fig. 5 is the structural representation of optical texture in the embodiment of the present application four；
Fig. 6 is the structural representation of optical texture in the embodiment of the present application five.
Specific embodiment
The invention provides a kind of optical texture being applied in COB encapsulation, solves existing optical transceiver module and exists
Complex structure, relatively costly technical problem realize simple structure, lower-cost technique effect.
It is in order to be more clearly understood that the above objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and concrete real
Apply mode to be further described in detail the present invention.It should be noted that in the case where mutually not conflicting, the application's
Feature in embodiment and embodiment can be mutually combined.
Many details are elaborated in the following description in order to fully understand the present invention, but, the present invention may be used also
With the other modes in the range of being different from being described herein using other implementing, therefore, protection scope of the present invention is not received down
The restriction of specific embodiment disclosed in face.
Structural representations of the Fig. 1 for embodiment 1, the view are top view.Including laser instrument 101, lens 102, filter plate
103, optical fiber 104, and PD105, wherein lens 102 and 103 bonding of filter plate become assembling device 12, and the assembling device is realized
The optical signal coupling function of transmitting terminal and receiving terminal.
In FIG, the optical signal λ 1 for sending from laser instrument 101 is incided on lens 102, and curved surface 1001 can carry out one first
Sub-beams compress the angle of divergence to reduce light beam, the light beam then incident on the bonding plane 1002 of lens and filter plate, due to
The bonding plane of filter plate is coated with spectro-film, it is ensured that wavelength is reflected for the light beam of λ 1, and wavelength is transmitted for the light beam of λ 2.Light beam
λ 1 again passes by curved surface 1001 after being reflected by 1002 faces, and now the curved surface is coupled in optical fiber 104 after 1 light beams of λ are focused.
Light beam is coupled after curved surface 1001 twice again, can effectively improve coupling efficiency, so then completes transmitting terminal
Coupling.
In receiving terminal, the light beam sent from optical fiber 104 is λ 2, and when the light beam is incided on curved surface 1001, the angle of divergence is pressed
Contracting, as the numerical aperture of optical fiber is smaller, after the once convergence effect of curved surface, the light beam can just focus on distal end.Light
When beam λ 2 is then incident on bonding plane 1002, as the plated film of filter plate 103 is that λ 2 is transmitted, then light beam is lossless by viscous
Filter plate 103 is entered after junction 1002, then is focused on from after 103 outgoing on PD105, complete coupling of the receiving terminal to optical signal
Close.
The filter plate adopts low-angle filter plate, and the low easy making of technology difficulty, isolation are high, and cost is more cheap.
, in same level, line between the two is put down for front views of the Fig. 2 for embodiment 1, laser instrument 101 and PD105
Row is in PCBA.Bonding is carried out using the bottom and PCBA of filter plate 103, plays a part of support combinations device.
The simple structure, only with coupling while adjusting assembling device 10 and the i.e. achievable transmitting terminal of optical fiber 104 and receiving terminal
Close, easy to operate efficiency high.
Fig. 3 for embodiment 2 top view, with embodiment 1 except that, only instead of in embodiment with lens 202
Assembling device 10, and plane 2002 needs plating spectro-film, realizes transmission and the reflection function of different wavelengths of light.As can be seen here, thoroughly
Mirror 202 is integrated with the function of focusing on and filter, and now no longer needs additionally to increase filter plate, can effective reduces cost, but need
Increase the bracing frame that can support lens.
Fig. 4 be 3 structural representation of embodiment, with embodiment 1 and 2 except that, the bonding plane 3002 of the filter plate 303
Using wide-angle spectro-film, such as 45 degree, now laser instrument 301, PD305 can be in same level, i.e., parallel to PCBA, this
When optical fiber also parallel with PCBA；Can also select laser instrument and PD not in same level, now fiber perpendicular is in PCBA.Should
Filter plate 306 can be increased in embodiment, the filter plate 306 is low-angle filter plate, for isolating wide-angle filtering face 3002
The optical signal not isolated out, improves isolation.
Fig. 5 be 4 structural representation of embodiment, with embodiment 1,2,3 except that, assembling device 40 by lens 402,
404, corner cube prism 403, filter plate 405 are constituted, and same plates spectro-film on bonding plane 4002, and lens 402 and 404 can phase
Together, it is also possible to different, corner cube prism 403 can be exchanged with 405, and transmitting terminal is realized and optical fiber through the convergence effect of two lens
Coupling, receiving terminal realized by focussing force of lens and PD coupling.Low-angle filter plate 408 can be realized higher
Isolation.
Another distinguishing feature of embodiment 4 is that lens 402 can be with 408 transposition of filter plate, laser instrument 401
Can be with transposition with PD407, as embodiment 5, as shown in Figure 6.Wherein 501 is laser instrument, and 507 is PD, lens 502,505
Transmitting terminal bar path, lens 505, corner cube prism 503 and filtering are formed with corner cube prism 503 and the combination of filter plate 504
Piece 504 forms receiving terminal turnover light path simultaneously again, still adds one piece of low-angle filter plate to be used in the exit positions of receiving terminal
Increase isolation.Another where 4 institutes are different with embodiment is, the membrane system of bonding plane 5002 and 4002 membrane system not
Together.Can be flexible and changeable according to the structure required for design requirement is selected, implementation.
Technical scheme in above-mentioned the embodiment of the present application, at least has the following technical effect that or advantage：
Optical texture in the application, coupling device can both realize the focusing coupling function of transmitting terminal, can realize again
The focusing coupling function of receiving terminal, the optical signal sent from transmitting terminal are coupled in optical fiber after coupling device, and from optical fiber
The optical signal of outgoing is coupled on receiving terminal after coupling device；The optical texture is compact, effectively can reduce volume and
Reduces cost, debugs simple and convenient；Wherein, as device used is few, low, coupling efficiency height is lost, and as all devices are pacified
It is mounted on same datum level, has good temperature performance, be conducive to the long range propagation of optical signal, with practical feasibility.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into the had altered of the scope of the invention and change.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (10)
1. it is a kind of be applied to COB encapsulation in optical texture, it is characterised in that the structure includes：
Laser emission end, coupling device, receiving terminal；Wavelength spectro-film is fitted with the coupling device, wherein, Laser emission end
After transmitting optical signals, optical signal is incided on wavelength spectro-film through coupling device, and first wave length light beam is by wavelength spectro-film
Reflection, then focuses on through coupling device and is coupled in optical fiber；Optical fiber sends second wave length light beam and incides through coupling device
On wavelength spectro-film, transmission focusing is to receiving terminal.
2. the optical texture being applied in COB encapsulation according to claim 1, it is characterised in that coupling device tool
Body is planoconvex lenss, and wavelength spectro-film is fitted in the plane of planoconvex lenss, and optical signal is injected from the convex surface of planoconvex lenss.
3. the optical texture being applied in COB encapsulation according to claim 1, it is characterised in that coupling device tool
Body includes：Planoconvex lenss and filter plate, filter plate are connected with the plane of planoconvex lenss, and wavelength spectro-film is fitted in planoconvex lenss
In plane, optical signal is injected from the convex surface of planoconvex lenss.
4. it is according to claim 3 be applied to COB encapsulation in optical texture, it is characterised in that the angle of the filter plate
Spend for 8-20 degree, or angle is 45 degree.
5. it is according to claim 1 be applied to COB encapsulation in optical texture, it is characterised in that the coupling device
Entering light end face and light output end are coated with anti-reflection film.
6. it is according to claim 1 be applied to COB encapsulation in optical texture, it is characterised in that the structure also includes
Pcb board, the coupling device are fixed on pcb board.
7. it is according to claim 1 be applied to COB encapsulation in optical texture, it is characterised in that the optical texture is also
Including bracing frame, support frame as described above is for being supported to the coupling device.
8. it is according to claim 3 be applied to COB encapsulation in optical texture, it is characterised in that the coupling device is also
Including：Second filter plate.
9. the optical texture being applied in COB encapsulation according to claim 1, it is characterised in that coupling device tool
Body includes：First planoconvex lenss, the second planoconvex lenss, the first corner cube prism, the second corner cube prism, filter plate, wherein, first is flat
The plane of convex lenss is fitted with the first side of the first corner cube prism, and the of the plane of the second planoconvex lenss and the first corner cube prism
Two side faces are fitted, and wavelength spectro-film is fitted on the 3rd side of the first corner cube prism, the side of the second corner cube prism and first
The 3rd side laminating of corner cube prism, filter plate are located between receiving terminal and the second corner cube prism.
10. the optical texture being applied in COB encapsulation according to claim 1, it is characterised in that coupling device tool
Body includes：3rd planoconvex lenss, the 4th planoconvex lenss, the 3rd corner cube prism, the 4th corner cube prism, filter plate, wherein, the 3rd is flat
The plane of convex lenss is fitted with the first side of the 3rd corner cube prism, and the of the plane of the 4th planoconvex lenss and the 4th corner cube prism
One side is fitted, and the second side of the 3rd corner cube prism is fitted with the second side of the 4th corner cube prism, the laminating of wavelength spectro-film
Between the second side of the 3rd corner cube prism and the second side of the 4th corner cube prism；Filter plate is straight positioned at receiving terminal and the 4th
Between angle prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611244280.6A CN106526764A (en) | 2016-12-29 | 2016-12-29 | Optical structure applied to COB encapsulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611244280.6A CN106526764A (en) | 2016-12-29 | 2016-12-29 | Optical structure applied to COB encapsulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106526764A true CN106526764A (en) | 2017-03-22 |
Family
ID=58338449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611244280.6A Pending CN106526764A (en) | 2016-12-29 | 2016-12-29 | Optical structure applied to COB encapsulation |
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| Country | Link |
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| CN (1) | CN106526764A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831569A (en) * | 2017-10-27 | 2018-03-23 | 武汉电信器件有限公司 | A kind of transmission optical device based on cemented doublet |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0659165A (en) * | 1992-08-11 | 1994-03-04 | Oki Electric Ind Co Ltd | Light wavelength multiplex transfer module |
| JP2005352256A (en) * | 2004-06-11 | 2005-12-22 | Fujikura Ltd | Optical component for single fiber bi-directional transmitting/receiving module and single fiber bi-directional transmitting/receiving module |
| CN102937734A (en) * | 2012-10-25 | 2013-02-20 | 青岛海信宽带多媒体技术有限公司 | Optical network unit three-direction optical assembly with optical time domain signal reflection function |
| CN203287567U (en) * | 2013-03-07 | 2013-11-13 | 上海波汇通信科技有限公司 | Coaxial single-fiber bidirectional device |
| CN105739032A (en) * | 2016-04-27 | 2016-07-06 | 成都聚芯光科通信设备有限责任公司 | Single-interface multi-wavelength transmitting and receiving assembly |
-
2016
- 2016-12-29 CN CN201611244280.6A patent/CN106526764A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0659165A (en) * | 1992-08-11 | 1994-03-04 | Oki Electric Ind Co Ltd | Light wavelength multiplex transfer module |
| JP2005352256A (en) * | 2004-06-11 | 2005-12-22 | Fujikura Ltd | Optical component for single fiber bi-directional transmitting/receiving module and single fiber bi-directional transmitting/receiving module |
| CN102937734A (en) * | 2012-10-25 | 2013-02-20 | 青岛海信宽带多媒体技术有限公司 | Optical network unit three-direction optical assembly with optical time domain signal reflection function |
| CN203287567U (en) * | 2013-03-07 | 2013-11-13 | 上海波汇通信科技有限公司 | Coaxial single-fiber bidirectional device |
| CN105739032A (en) * | 2016-04-27 | 2016-07-06 | 成都聚芯光科通信设备有限责任公司 | Single-interface multi-wavelength transmitting and receiving assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831569A (en) * | 2017-10-27 | 2018-03-23 | 武汉电信器件有限公司 | A kind of transmission optical device based on cemented doublet |
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Application publication date: 20170322 |
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