CN108415130A - A kind of eight channel high rate optical receiving devices - Google Patents
A kind of eight channel high rate optical receiving devices Download PDFInfo
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- CN108415130A CN108415130A CN201710737446.6A CN201710737446A CN108415130A CN 108415130 A CN108415130 A CN 108415130A CN 201710737446 A CN201710737446 A CN 201710737446A CN 108415130 A CN108415130 A CN 108415130A
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- light input
- input element
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- light
- amplifier chip
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- 230000003287 optical effect Effects 0.000 title claims abstract description 62
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 230000005693 optoelectronics Effects 0.000 claims abstract description 4
- 239000000919 ceramic Substances 0.000 claims description 35
- 238000003780 insertion Methods 0.000 claims description 17
- 230000037431 insertion Effects 0.000 claims description 17
- 241000218202 Coptis Species 0.000 claims description 14
- 235000002991 Coptis groenlandica Nutrition 0.000 claims description 14
- 239000013307 optical fiber Substances 0.000 claims description 12
- 230000003667 anti-reflective effect Effects 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 2
- 238000006303 photolysis reaction Methods 0.000 claims 1
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 238000005538 encapsulation Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
-
- 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
- G02B6/4206—Optical features
Abstract
The present invention relates to technical field of photo communication, embodiment specifically discloses a kind of eight channel high rate optical receiving devices, including the first light input element and the second light input element in hull outside one end is arranged；Further include the first photoelectric conversion component and the second photoelectric conversion component of setting inside housings；It further include the soft board being arranged in the hull outside other end.The light receiving element inputs two-way light simultaneously using two light input elements, two groups of photoelectric conversion components are carried out at the same time the structure of eight channel opto-electronic conversions, the encapsulation for solving the problems, such as 200G/400G high-speed multichannel light receiving elements, has reached the requirement that more multichannel higher transfer rate is realized on the basis of not changing existing light receiving element size.
Description
Technical field
The present invention relates to technical field of photo communication, and in particular to eight channel high rate optical receiving device encapsulation of one kind.
Background technology
Under the premise of 100G transmission technologys reach its maturity, the swift and violent growth of the demand with market to bandwidth, Ren Men
The transmission concept and demand of 200G or even 400G are had also been proposed in existing technical foundation.Optical module is transmitted in existing 100G
Under package dimension, the transmission of 200G/400G is realized, how to design the structure of light receiving element, seal more transmission channels
It puts into original small size optical device, and realizes that the transmission of single channel higher rate is assistant officer's problem to be solved.
Invention content
In view of this, the application provides one kind under former package of optical device size, the light of eight channel receptions can be carried out at the same time
Receiving device, to realize 200G/400G optical transports.
In order to solve the above technical problems, technical solution provided by the invention is a kind of eight channel high rate optical receiving devices,
Including shell, further include：
The first light input element and the second light input element in described hull outside one end is set；The first light input
Unit is connect by first fixed structure part with the shell, and first light input element is provided through the of the shell
One ceramic insertion core；Second light input element is connect by the second fixed structure piece with the shell, the second light input
Unit is provided through the second ceramic insertion core of the shell；
The first photoelectric conversion component and the second photoelectric conversion component in the enclosure interior is set；First photoelectricity turns
Change component include the first collimation lens for being sequentially fixed at the enclosure interior, the first four-way Wave decomposing multiplexer, first group
Four condenser lenses, the first optical prism, the first detector chip and the first trans-impedance amplifier chip；Second opto-electronic conversion
Component include the second collimation lens for being sequentially fixed at the enclosure interior, the second four-way Wave decomposing multiplexer, second group four
A condenser lens, the second optical prism, the second detector chip and the second trans-impedance amplifier chip；First collimation lens with
First ceramic insertion core is correspondingly connected with, and second collimation lens is correspondingly connected with second ceramic insertion core；
Soft board in the hull outside other end is set, and one end of the soft board is fixed on the enclosure interior, described
The other end of soft board reaches hull outside, and one end that the soft board is located at the enclosure interior is provided with pad；
The light that the first ceramic insertion core is inputted by the first light input element passes through the first collimation of the first photoelectric conversion component
Collimated, then demultiplexed by the first four-way Wave decomposing multiplexer, the light after demultiplexing is focused by first group four again
In lens focus to the first optical prism, the first optical prism is incident on after deflecting light in the first detector chip, and first visits
It surveys device chip to be electrically connected with the first trans-impedance amplifier chip, the first trans-impedance amplifier chip is electrically connected with the pad of soft board；
The light that the second ceramic insertion core is inputted by the second light input element passes through the second collimation of the second photoelectric conversion component
Collimated, then demultiplexed by the second four-way Wave decomposing multiplexer, the light after demultiplexing is focused by second group four again
In lens focus to the second optical prism, the second optical prism is incident on after deflecting light in the second detector chip, and second visits
It surveys device chip to be electrically connected with the second trans-impedance amplifier chip, the second trans-impedance amplifier chip is electrically connected with the pad of soft board.
Preferably, first light input element and the second light input element be the tail optical fiber structured optical fiber covered with lock pin or
Band plug-in lock pin nested structure optical fiber.
Preferably, first light input element and the second light input element parallel arranged setting, first light
Electric transition components and the second photoelectric conversion component parallel arranged setting.
Preferably, first collimation lens, the second collimation lens, first group of four condenser lens, second group four it is poly-
Focus lens, the plane of incidence of the first optical prism and the second optical prism and exit facet are coated with anti-reflective film.
Preferably, first optical prism and the second optical prism are total reflection prism.
Preferably, which further includes ceramic joining block, and the ceramic joining block is located at institute
The one end for stating hull outside is electrically connected with the pad of the soft board, and the ceramic joining block is located at one end point of the enclosure interior
It is not electrically connected with the first trans-impedance amplifier chip and the second trans-impedance amplifier chip.
Preferably, the ceramic joining block is connect with the pad solder of the soft board, the ceramic joining block respectively with institute
It states the first trans-impedance amplifier chip and the second trans-impedance amplifier chip is electrically connected by gold thread.
Preferably, the first four-way Wave decomposing multiplexer and the second four-way Wave decomposing multiplexer are free space wave
Decomposition multiplex device or array waveguide grating optical demultiplexer.
Preferably, the first four-way Wave decomposing multiplexer and the second four-way Wave decomposing multiplexer replace with eight channels
Wave decomposing multiplexer.
Preferably, first detector chip is electrically connected with the first trans-impedance amplifier chip by gold thread, described
Second detector chip is electrically connected with the second trans-impedance amplifier chip by gold thread, the first trans-impedance amplifier chip and
Second is electrically connected with the pad of the soft board by gold thread respectively across group amplifier chip.
Compared with prior art, detailed description are as follows for advantage by the application：Eight channel provided by the present application high-speed
Light receiving element, including the first light input element and the second light input element in hull outside one end are set；It further include setting
The first photoelectric conversion component inside housings and the second photoelectric conversion component；Further include being arranged in the soft of the hull outside other end
Plate.The light receiving element inputs two-way light simultaneously using two light input elements, and it is logical that two groups of photoelectric conversion components are carried out at the same time eight
The structure of road opto-electronic conversion solves the problems, such as the encapsulation of 200G/400G high-speed multichannel light receiving elements, has reached and has not changed
Become on the basis of existing light receiving element size and realizes the requirement of more multichannel higher rate transmission.
Description of the drawings
Fig. 1 is light receiving element top plan view schematic diagram of the embodiment of the present invention；
Fig. 2 is light receiving element elevation cross-sectional view schematic diagram of the embodiment of the present invention；
In attached drawing label for：1- shells, the first optical transmission units of 21-, the second optical transmission units of 22-, the first photoelectricity of 11- turn
Change component, the second photoelectric conversion components of 12-, 211,221-LC lock pins cover component, the first ceramic insertion cores of 212-, the second ceramics of 222-
Lock pin, 23- first fixed structure parts, the second fixed structure pieces of 24-, the first collimation lenses of 31-, the second collimation lenses of 32-, 41-
First four-way Wave decomposing multiplexer, 42- the second four-way Wave decomposing multiplexers, first group of four condenser lens of 51-, 52-
Two groups of four condenser lenses, the first optical prisms of 61-, the second optical prisms of 62-, the first detector chips of 71-, 72- second are visited
Survey device chip, 81- the first trans-impedance amplifier chips, 82- the second trans-impedance amplifier chips, 9- soft boards.
Specific implementation mode
It is below in conjunction with the accompanying drawings and specific real in order to make those skilled in the art more fully understand technical scheme of the present invention
Applying example, the present invention is described in further detail.
As depicted in figs. 1 and 2, the embodiment of the present invention provides a kind of eight channel high rate optical receiving devices, including shell 1,
Further include the first light input element 21 and the second light input element 22 being arranged in 1 outside one end of shell；First light input element
21 are connect by first fixed structure part 23 with shell 1, and the first ceramics that the first light input element 21 is provided through shell 1 are inserted
Core 212；Second light input element 22 is connect by the second fixed structure piece 24 with shell 1, and the second light input element 22 is provided with
Across the second ceramic insertion core 222 of shell 1.Shell 1 can be metal shell.
The eight channels high rate optical receiving device further includes the first photoelectric conversion component 11 being arranged inside shell 1 and
Two photoelectric conversion components 12.First photoelectric conversion component 11 includes being sequentially fixed at the first collimation lens 31 inside shell 1, the
One 41, first groups of four-way Wave decomposing multiplexer, four condenser lenses 51, the first optical prism 61,71 He of the first detector chip
First trans-impedance amplifier chip 81.First collimation lens 31 is correspondingly connected with the first ceramic insertion core 212.
Second photoelectric conversion component 12 includes the second collimation lens 32, the second four-way being sequentially fixed inside shell 1
42, second groups of four condenser lenses 52 of Wave decomposing multiplexer, the second optical prism 62, the second detector chip 72 and second is across resistance
Amplifier chip 82.Second collimation lens 32 is correspondingly connected with the second ceramic insertion core 222.
Wherein, the first collimation lens 31,32, first groups of the second collimation lens, four condenser lenses 51, second groups four are poly-
Focus lens 52, the plane of incidence of the first optical prism 61 and the second optical prism 62 and exit facet are coated with anti-reflective film.First light
It can be total reflection prism to learn prism 61 and the second optical prism 62.First four-way Wave decomposing multiplexer 41 and the second four-way
Wave decomposing multiplexer 42 can be free space wave decomposition multiplex device, or array waveguide grating optical demultiplexer.First
The eight channel Wave Decompositions that four-way Wave decomposing multiplexer 41 and the second four-way Wave decomposing multiplexer 42 could alternatively be whole are multiple
Use device.First collimation lens 31 and the second collimation lens 32 can be miniature aspheric collimation lens.
The eight channels high rate optical receiving device further includes the soft board 9 being arranged in the 1 outside other end of shell, and the one of soft board 9
End is fixed on inside shell 1, and the other end of soft board 9 reaches outside shell 1, and one end that soft board 9 is located inside shell 1 is provided with
Pad, the pad can be gold plated pads.Here soft board 2 is not limited to the shape in attached drawing, has used the soft board 2 of other shapes
It is considered as in the range of the application protects.By the function point of soft board 2, soft board 2 divides for high-frequency signal soft board and low frequency signal
Soft board only uses high-frequency signal soft board, only uses low frequency signal soft board or uses high-frequency signal soft board and low frequency signal simultaneously
The mode of soft board all thinks within the scope of protection of this application.
In the eight channels high rate optical receiving device, the first ceramic insertion core 212 is inputted by the first light input element 21
Light is collimated by the first collimation lens 31 of the first photoelectric conversion component 11, is incident on the first four-way Wave decomposing multiplexer 41
It demultiplexes, the multigroup directional light being emitted after demultiplexing focuses on the first optical prism 61 by first group of four condenser lens 51
In, the first optical prism 61 is incident on after deflecting light in the first detector chip 71, the first detector chip 71 and first across
Impedance amplifier chip 81 is electrically connected, and the first trans-impedance amplifier chip 81 is electrically connected with the pad of soft board 9.
In the eight channels high rate optical receiving device, the second ceramic insertion core 222 is inputted by the second light input element 22
Light is collimated by the second collimation lens 32 of the second photoelectric conversion component 12, is incident on the second four-way Wave decomposing multiplexer 42
It demultiplexes, the multigroup directional light being emitted after demultiplexing focuses on the second optical prism 62 by second group of four condenser lens 52
In, the second optical prism 62 is incident on after deflecting light in the second detector chip 72, the second detector chip 72 and second across
Impedance amplifier chip 82 is electrically connected, and the second trans-impedance amplifier chip 82 is electrically connected with the pad of soft board 9.
Here, the first light input element 21 can be the tail optical fiber structured optical fiber covered with lock pin, the first light input element 21
The LC lock pins that one end connects standard cover component 211, and the other end is fixed on by first fixed structure part 23 on shell 1；First light
Input unit 21 or plug-in lock pin nested structure optical fiber, are welded on by first fixed structure part 23 on metal shell 1.
Second light input element 22 can be the tail optical fiber structured optical fiber covered with lock pin, one end connection standard of the second light input element 22
LC lock pins cover component 221, and the other end is fixed on by the second fixed structure piece 24 on shell 1；Second light input element 22 also may be used
Think plug-in lock pin nested structure optical fiber, is welded on metal shell 1 by the second fixed structure piece 24.
Here, the first light input element 21 is identical as 22 structure of the second light input element,.First photoelectric conversion component, 11 He
Second photoelectric conversion component, 12 structure is identical.First light input element 21 and the setting of 22 parallel arranged of the second light input element.The
One photoelectric conversion component 11 and the setting of 12 parallel arranged of the second photoelectric conversion component.The eight channels high rate optical receiving device uses
Eight channel parallels arrangement structure design mode, optimize the heat dissipation performance of the light receiving element.
Inventive embodiments provide another eight channel high rate optical receiving devices, on the basis of the above embodiments, for
Soft board 9 improves, and can not accomplish to fit closely between shell 1 due to the material of soft board 9, lead to the light receiving element
Air-tightness it is not good enough, therefore ceramic joining block is increased in the eight channels high rate optical receiving device, for being connected to
One across group amplifier 81, second between group amplifier 82 and the pad of soft board 9；Ceramic joining block is located at one outside shell 1
End be electrically connected with the pad of soft board 9, ceramic joining block be located at one end inside shell 1 respectively with the first trans-impedance amplifier chip 81
It is electrically connected with the second trans-impedance amplifier chip 82.The ceramic joining block can be fitted closely with shell 1, ensure that eight channel height
The air-tightness of rate light receiving element.
Here, ceramic joining block is connect with the gold plated pads of soft board 9 by scolding tin, and ceramic joining block is respectively with first across resistance
Amplifier chip 81 and the second trans-impedance amplifier chip 82 are electrically connected by gold thread, are realized by using the mode that gold thread connects
High speed interconnects.
Here, the first detector chip is electrically connected with the first trans-impedance amplifier chip by gold thread, the second detector chip
Be electrically connected by gold thread with the second trans-impedance amplifier chip, the gold plated pads of soft board 9 respectively with the first trans-impedance amplifier chip and
Second is electrically connected across a group amplifier chip by gold thread, and realizing high speed by using the mode that gold thread connects interconnects.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be subject to claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change
Protection scope of the present invention is also should be regarded as into retouching.
Claims (10)
1. a kind of eight channel high rate optical receiving devices, including shell, which is characterized in that further include：
The first light input element and the second light input element in described hull outside one end is set；First light input element
It is connect with the shell by first fixed structure part, first light input element is provided through the first pottery of the shell
Porcelain lock pin；Second light input element is connect by the second fixed structure piece with the shell, second light input element
It is provided through the second ceramic insertion core of the shell；
The first photoelectric conversion component and the second photoelectric conversion component in the enclosure interior is set；The first opto-electronic conversion group
Part include the first collimation lens for being sequentially fixed at the enclosure interior, the first four-way Wave decomposing multiplexer, first group four
Condenser lens, the first optical prism, the first detector chip and the first trans-impedance amplifier chip；Second photoelectric conversion component
Including be sequentially fixed at the second collimation lens of the enclosure interior, the second four-way Wave decomposing multiplexer, second group four it is poly-
Focus lens, the second optical prism, the second detector chip and the second trans-impedance amplifier chip；First collimation lens with it is described
First ceramic insertion core is correspondingly connected with, and second collimation lens is correspondingly connected with second ceramic insertion core；
Soft board in the hull outside other end is set, and one end of the soft board is fixed on the enclosure interior, the soft board
The other end reach hull outside, one end that the soft board is located at the enclosure interior is provided with pad；
The light that the first ceramic insertion core is inputted by the first light input element, passes through the first collimation lens of the first photoelectric conversion component
Collimation, then demultiplexed by the first four-way Wave decomposing multiplexer, the light after demultiplexing passes through first group of four condenser lens again
It focuses in the first optical prism, the first optical prism is incident on after deflecting light in the first detector chip, the first detector
Chip is electrically connected with the first trans-impedance amplifier chip, and the first trans-impedance amplifier chip is electrically connected with the pad of soft board；
The light that the second ceramic insertion core is inputted by the second light input element, passes through the second collimation lens of the second photoelectric conversion component
Collimation, then demultiplexed by the second four-way Wave decomposing multiplexer, the light after demultiplexing passes through second group of four condenser lens again
It focuses in the second optical prism, the second optical prism is incident on after deflecting light in the second detector chip, the second detector
Chip is electrically connected with the second trans-impedance amplifier chip, and the second trans-impedance amplifier chip is electrically connected with the pad of soft board.
2. eight channels high rate optical receiving device according to claim 1, which is characterized in that first light input element
It is the tail optical fiber structured optical fiber covered with lock pin or with plug-in lock pin nested structure optical fiber with the second light input element.
3. eight channels high rate optical receiving device according to claim 1, which is characterized in that first light input element
It is arranged with the second light input element parallel arranged, first photoelectric conversion component and second photoelectric conversion component are simultaneously
Row is arranged.
4. eight channels high rate optical receiving device according to claim 1, which is characterized in that first collimation lens,
Second collimation lens, first group of four condenser lens, second group of four condenser lens, the first optical prism and the second optical prism
The plane of incidence and exit facet be coated with anti-reflective film.
5. eight channels high rate optical receiving device according to claim 1, which is characterized in that first optical prism and
Second optical prism is total reflection prism.
6. eight channels high rate optical receiving device according to claim 1, which is characterized in that further include ceramic joining block,
One end that the ceramic joining block is located at the hull outside is electrically connected with the pad of the soft board, and the ceramic joining block is located at
One end of the enclosure interior is electrically connected with the first trans-impedance amplifier chip and the second trans-impedance amplifier chip respectively.
7. eight channels high rate optical receiving device according to claim 6, which is characterized in that the ceramic joining block and institute
The pad solder connection of soft board is stated, the ceramic joining block is respectively with the first trans-impedance amplifier chip and described second across resistance
Amplifier chip is electrically connected by gold thread.
8. eight channels high rate optical receiving device according to claim 1, which is characterized in that the first four-way wavelength-division
Demultiplexer and the second four-way Wave decomposing multiplexer are that free space Wave decomposing multiplexer or array waveguide grating photodissociation are multiple
Use device.
9. eight channels high rate optical receiving device according to claim 1, which is characterized in that the first four-way wavelength-division
Demultiplexer and the second four-way Wave decomposing multiplexer replace with eight channel Wave decomposing multiplexers.
10. eight channels high rate optical receiving device according to claim 1, which is characterized in that the first detector core
Piece is electrically connected with the first trans-impedance amplifier chip by gold thread, and second detector chip amplifies with described second across resistance
Device chip is electrically connected by gold thread, the first trans-impedance amplifier chip and second across group amplifier chip respectively with the soft board
Pad be electrically connected by gold thread.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710737446.6A CN108415130A (en) | 2017-08-24 | 2017-08-24 | A kind of eight channel high rate optical receiving devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710737446.6A CN108415130A (en) | 2017-08-24 | 2017-08-24 | A kind of eight channel high rate optical receiving devices |
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| CN108415130A true CN108415130A (en) | 2018-08-17 |
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| CN201710737446.6A Pending CN108415130A (en) | 2017-08-24 | 2017-08-24 | A kind of eight channel high rate optical receiving devices |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108873128A (en) * | 2018-09-05 | 2018-11-23 | 四川新易盛通信技术有限公司 | Prism, the application method of prism, prism group and optical assembly |
| CN109683257A (en) * | 2018-12-27 | 2019-04-26 | 武汉联特科技有限公司 | A kind of multichannel parallel light path compression assembly and its receive optical device |
| CN110531472A (en) * | 2019-09-24 | 2019-12-03 | 武汉光迅科技股份有限公司 | A kind of light emitting devices, light receiving element and optical module |
| CN110794529A (en) * | 2020-01-06 | 2020-02-14 | 成都新易盛通信技术股份有限公司 | Optical assembly and system thereof |
| CN114002784A (en) * | 2021-09-22 | 2022-02-01 | 武汉联特科技股份有限公司 | Optical assembly and manufacturing method thereof |
| CN114200596A (en) * | 2020-09-18 | 2022-03-18 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN114355521A (en) * | 2022-01-13 | 2022-04-15 | 深圳市易飞扬通信技术有限公司 | Packaging method of light receiving assembly and light receiving assembly |
| CN114967003A (en) * | 2022-05-27 | 2022-08-30 | 武汉光迅科技股份有限公司 | 800G optical device and production method thereof |
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