CN108535820A - Optical module coexists in a kind of multi-wavelength - Google Patents
Optical module coexists in a kind of multi-wavelength Download PDFInfo
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- CN108535820A CN108535820A CN201710117960.XA CN201710117960A CN108535820A CN 108535820 A CN108535820 A CN 108535820A CN 201710117960 A CN201710117960 A CN 201710117960A CN 108535820 A CN108535820 A CN 108535820A
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- 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
- G02B6/4246—Bidirectionally operating package structures
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Present invention is disclosed a kind of multi-wavelengths, and optical module coexists, it is provided with optical transceiver module, printed circuit board and light wire jumper interface, printed circuit board in optical module shell and forms horizontally disposed, the light wire jumper interface there are one settings on optical transceiver module in optical module shell.Multiple optical transmitting sets and multiple optical receivers are set in optical transceiver module, they merge with light wire jumper interface optocoupler is electrically connected with printed circuit board；2 or multiple such optical transceiver modules are set in optical module shell, this multiple optical transceiver module is connect by corresponding multiple smooth wire jumper interfaces with optical fiber with horizontally or vertically being stacked in the direction of the printed circuit board.
Description
Technical field
The present invention relates to technical field of photo communication, and in particular to a kind of single fiber bi-directional multi-wavelength light transmitting-receiving subassembly (BOSA) exists
Encapsulation in optical module and application.
Background technology
Due to the fast development of data center, the rate of industry interior focusing module proposes increasingly higher demands, this is wanted
High speed development and the expansion of optical module industry are asked and promote, Ethernet optical module is developed to from 10Gb/s with surprising rapidity
The 40Gb/s or even 100Gb/s of today.40GE (40Gb/s Ethernet) module for being equal to two kilometers greatly from operating distance is opened
Begin, module is achieved in that the transmission data in a manner of wavelength-division multiplex, that is, uses four tunnels of the 4x10Gb/s of CWDM to believe parallel
The transmission rate for number reaching 40Gb/s, is encapsulated in QSFP optical modules.This working method is equal to greatly two kilometers in operating distance
100GE modules in further developed, present this 100GE modules mainly use the 4 of CWDM LAN-WDM wavelength
The four road parallel signals of × 25Gb/s reach the transmission rate of 100Gb/s, are encapsulated in almost the same with QSFP size dimensions
In QSFP28 optical modules.
Fig. 1 is the optical patchcord interface schema of existing commercialization QSFP QSFP28 optical modules, which gathers around that there are one hairs
Port (corresponding a TOSA) and a receiving port (one ROSA of correspondence) are penetrated, can only realize the same of 4 different wave length channels
When receive and dispatch.
If further evolution, existing international standard is to consider to be further added by four road wavelength, by way of 8 × 25Gb/s
Realize the transmission rate of 200GB/s, the users of optical module, which wish this 8 channel module still, can be encapsulated in and QSFP sizes
In the almost the same QSFP-DD optical modules of size.However, being extended in the optical mode block space in 4 road light transceiver roads originally in this way
To 8 wavelength-channels, the design of wavelength-division multiplex multiplexer/demultiplexer part can be caused increasingly complex, increase the optical path difference of 8 interchannels
And manufacture difficulty；Or after causing former 4 road optical multiplexers to develop into 8 road optical multiplexers, channel Insertion Loss is further increased, it is light path
Coupling and modular manufacture are put forward higher requirements.
Again for the optical fiber interface of optical module, in addition to the short distance optical module (SR4, PSM4) of 40GE rates or more is used
Other than MPO interfaces, most of Ethernet optical module can use two LC optical patchcord interfaces, and one is that optical transmitting set output connects
Mouthful, the other is optical receiver input interface, to complete the task that optical module receives and dispatches optical signal.In recent years, also there are many manufacturers
In order to improve space availability ratio, the single fiber bi-directional two-channel modules of cSFP or even cSFP+ are had developed, wherein each channel can be with
Independent transmitting-receiving optical signal, but due to the limitation of manufacturing process, the interior optical transmitting set and optical receiver using BOSA of this module
Different wave length is generally used, causes cSFP (+) module at communication system both ends that must match use, to user installation and operation band
Carry out certain inconvenience.Furthermore, it is understood that (such as when communications protocol requires the transmitting of the module and reception must be with Same Wavelength group
40G and 100G LR4 agreements), the technology is just helpless.
Therefore, the scheme of existing 8 transceiver channel optical modules in the works will generally use 8 kinds of wavelength to carry out wavelength-division and demultiplex
With and multiplexing, and be encapsulated in larger OSA (such as CFP8), considerably increase the volume and cost of optic communication server.It wants
Want to encapsulate 8 road wavelength optical transceiver modules and volume production in QSFP-DD modules, it is necessary to there are some new approaches.
Invention content
To solve the above-mentioned problems, present invention is disclosed a kind of multi-wavelengths can be used for multichannel communication, and optical module coexists,
To realize the ability of super multichannel communication in same optical module.Optical transceiver module, printing are provided in the optical module shell
Circuit board and light wire jumper interface, printed circuit board form horizontally disposed in the optical module shell, wherein on optical transceiver module
Be arranged a light wire jumper interface, N number of optical transmitting set and N number of optical receiver are set in optical transceiver module, this N number of optical transmitting set and
N number of optical receiver merges with light wire jumper interface optocoupler to be electrically connected with printed circuit board；M light is arranged in optical module shell to receive and dispatch
Component, M optical transceiver module are connect with horizontally or vertically being stacked in the direction of printed circuit board by corresponding M light wire jumper
Mouth is connect with external fiber, wherein M, N >=2.
According to an aspect of the present invention, wavelength-division multiplex demultiplexing component and list there are one being also set up in optical transceiver module
Fine two-way optical interface, the transmitting light beam of the roads N number of optical transmitting set transmitting N different wave length, N number of optical receiver receive the roads N different wave length
Incident beam, transmitting light beam and incident beam comes in and goes out from light wire jumper interface and shared wavelength-division multiplex demultiplexes in transmitting light path
With component and single fiber bi-directional optical interface.
Single fiber bi-directional optical interface can be one, can also be multiple.
In a preferred embodiment, single fiber bi-directional optical interface is optical circulator.
According to another aspect of the present invention, N number of optical transmitting set and N number of optical receiver one-to-one correspondence are staggered, and N
The incident beam of the transmitting light beam and the roads N different wave length of road different wave length, corresponds and staggeredly transmits.
In another preferred embodiment according to the present invention, the size of optical transceiver module is in 12mm*36mm*
Within 3.5mm or within 6mm*36mm*7mm.
In another preferred embodiment according to the present invention, light wire jumper interface is LC interfaces or MPO interfaces.
In another preferred embodiment according to the present invention, one to two piece of printed circuit is set in optical module
Plate.
According to another aspect of the present invention, soft board is additionally provided in optical module, optical transceiver module passes through soft board and print
Printed circuit board is electrically connected；Optical transmitting set chip pin and optical transmitting set chip pin, optical transmitting set are set on optical transceiver module
Chip pin is electrically connected to the signal emission interface of printed circuit board by soft board, and optical receiver chip pin is electrically connected by soft board
It is connected to the signal receiving interface of printed circuit board.
In the preferred embodiment of the present invention, the M=2 of optical module, N=4 coexists in multi-wavelength.
Compared with prior art, optical module provided by the invention has the following advantages：By coexisting BOSA's in multi-wavelength
Stacking in horizontally or vertically direction so that the volume of optical module is extremely compact.Middle optical transmitting set light compared to the prior art
Component and optical receiver optical assembly optical module arranged apart, it is logical that optical module provided by the present invention can accommodate more signals
Road, and the communication that M × N channels are realized with M built-in BOSA is realized in an optical module, for QSFP-DD modules, with two
A single fiber bi-directional BOSA realizes the communication of 8 wavelength channels.
Description of the drawings
Fig. 1 is the optical patchcord interface schema of existing commercialization QSFP QSFP28 optical modules；
Fig. 2 is the BOSA schematic diagrames stacked for encapsulating a kind of vertical direction of optical module of the present invention；
Fig. 3 is BOSA vertical directions stacking schematic diagram in accordance with a preferred embodiment of the present invention；
Fig. 4 is to stack schematic diagram according to the BOSA vertical directions of another preferred embodiment of the present invention；
Fig. 5 is the BOSA schematic diagrames stacked for encapsulating a kind of horizontal direction of optical module of the present invention；
Fig. 6 is BOSA horizontal directions stacking schematic diagram in accordance with a preferred embodiment of the present invention；
Fig. 7 is to stack schematic diagram according to the BOSA horizontal directions of another preferred embodiment of the present invention；
Fig. 8 is the schematic diagram being encapsulated into multiple BOSA in optical module shell.
Specific implementation mode
For a better understanding and interpretation of the present invention, below in conjunction with attached drawing, the present invention is described in further detail.
Fig. 2 shows can be used for vertical stacking in the BOSA schematic diagrames in module, the optical module of QSFP package dimensions at present
It is general that free space micro-optics or planar optical waveguide device is taken to realize the function of wavelength-division multiplexing and demultiplexing inside OSA.Here
OSA be optical sub-assembly abbreviation, can be described as optical module.If this OSA only has emission function,
Then it is known as TOSA, i.e. transmitter optical sub-assembly can be described as light emission component；If OSA only has
Light-receiving function, then referred to as ROSA, i.e. receiver optical sub-assembly, can be described as light-receiving component.Another party
Face, when OSA is provided simultaneously with light emitting and receive capabilities on single optical interface, referred to as BOSA, i.e. bi-
Direction optical sub-assembly, can be described as optical transceiver module.
As shown in Fig. 2, 0003 is N number of wavelength channel light optical receiver, the optical transmitting set in each channel by photodiode,
Trans-impedance amplifier TIA, the compositions such as speculum and several coupled lens, and also the wavelength in this N number of channel is different from.0004 is N
The optical transmitting set of a wavelength channel light optical transmitting set, each channel is made of Laser emission chip and several collimation lenses etc., accurate
The effect of straight lens is that the laser that Laser emission chip be emitted is converged to collimated light beam, and the wavelength of each transmission channel with
The consistent wavelength (for example the rest may be inferred by Tx1 and Rx1, Tx2 and Rx2 ...) of corresponding receiving channel.Without loss of generality, N is taken here
=4 be example explanation.0002 is wavelength-division multiplex demultiplexing component, which includes principal light transmission substrate and multiple optical filters,
Principal light transmission substrate includes opposite first surface and second surface, and first surface is most of except staying there are one in addition to thang-kng window
For fully reflecting surface；Multiple optical filters are then arranged on a second surface.In one embodiment, incident ray is from substrate first surface
Thang-kng window is incident, reaches second surface and is simultaneously projected from principal light transmission substrate after each optical filter respectively, by focusing and
Reflecting system enters each optical receiver (Rx1 ... Rx4 on such as schematic diagram).Meanwhile and optical receiver be staggeredly placed light hair
Each wavelength that emitter (Tx1 ... Tx4 on such as schematic diagram) is sent out forms multiplex after same filter plate and main substrate, also from logical
Light window projects.
0001 is single fiber bi-directional optical interface, usually a small-sized optical circulator.(light is sent out for three ports of the optical circulator
Emitter, optical receiver and common end) successively respectively with outgoing optical position, the light wire jumper interface docking of incident light position and shell.
In a preferred embodiment, light wire jumper interface is an optical fiber connector.As a result, by wavelength-division multiplex demultiplexer systems 0002
Thang-kng window project optical signal after circulator 0001, the light wire jumper entered on BOSA 005 by the common end of circulator connects
Mouth 102；The collimated light signal entered by light wire jumper interface 102 then enters wavelength-division multiplex demultiplexing by circulator optical receiver
System 0002 receives after being demultiplexed for optical receiver 0003.
It will be understood to those skilled in the art that if wavelength-division multiplex demultiplexing component (WDM) uses planar type optical waveguide
Structure then needs multiple channels to use corresponding multiple single fiber bi-directional optical interfaces, i.e., multiple optical circulators.Hereby it is achieved that
Same smooth wire jumper interface 102 forms a flat single fiber to the uplink output of multi-channel wavelength signal light and downlink reception
Two-way multi-wavelength channel BOSA, the BOSA sizes of this packaged type can accomplish within 12mm*36mm*3.5mm, can be encapsulated in
In QSFP-DD (standard size 18.35mm*72mm*8.5mm) optical module, and two are put on the same vertical plane of optical module
A BOSA.
Those skilled in the art equally may be used it is also to be understood that single fiber bi-directional optical interface can also be half-reflection and half-transmission slide
To achieve the effect that single fiber bi-directional optical transport.In addition, according to the present invention, can be arranged in optical module shell M are such
Optical transceiver module, and N number of optical transmitting set and N number of optical receiver, this N number of optical transmitting set and N are set in each optical transceiver module
A optical receiver merges with light wire jumper interface optocoupler to be electrically connected with printed circuit board.In the light module package mode of Fig. 2, M=
2, N=4, but M, N are not limited to this, M, N can be >=2 arbitrary integer；For example M=2, N=8 to be to realize 8 channel transfers,
Or use M=4, the scheme of N=4.
As shown in figure 3, further, 101 first 4 wavelength channel BOSA to be stacked in optical module, 102 is on BOSA
Light wire jumper interface, 103 be the mating circuit boards of BOSA, and 103 pass through soft board and 101 connections；201 be second 4 wave stacked
Long channel BOSA, 202 be the light wire jumper interface on the BOSA, and 203 be the circuit board mating BOSA, and 203 pass through soft board and 201
Connection.They are all positioned within optical module shell 01, realize the photoelectric conversion function of optical module.
103,203 in circuit board such as Fig. 3 mating each BOSA ... can also integrate, by soft board and each
BOSA connections, specifically, optical transmitting set chip pin and optical transmitting set chip pin, optical transmitting set chip are arranged on BOSA
Pin is electrically connected to the signal emission interface of printed circuit board by soft board, and optical receiver chip pin is electrically connected also by soft board
To the signal receiving interface of printed circuit board, as shown in 003 in Fig. 4.
The BOSA schematic diagrames that can be used for being horizontally stacked in module of Fig. 5 displayings.The embodiment is wavelength-division multiplex demultiplexing
Structure is changed.When wavelength-division multiplex demux architecture 0002 is using multiple stacked design, light optical transmitting set
0004 and optical receiver 0003 can also take stacked placement (layer1 and layer2 in figure) accordingly, and pass through single fiber bi-directional
Light wire jumper interface 102 on optical interface 0001 and BOSA docks.The BOSA sizes of this packaged type can accomplish 6mm*36mm*
Within 7mm, it can be encapsulated in QSFP-DD (standard size 18.35mm*72mm*8.5mm) optical module, and in the same of optical module
Two BOSA are put on one horizontal plane.
Fig. 6 is another optical module embodiment according to the present invention, and the BOSA in this is stacked in the horizontal direction, and 111 be light
The first N wavelength channel BOSA stacked in module, 102 be the light wire jumper interface on BOSA, and 103 be circuit mating BOSA
Plate, 103 are connected by soft board and 111.211 be the second N wavelength channel BOSA stacked, and 202 be the light wire jumper on the BOSA
Interface, 203 be the circuit board mating BOSA, and 203 are connected by soft board and 211.They be all positioned over optical module shell 01 it
It is interior, realize the photoelectric conversion function of optical module.
It can also integrate, by soft likewise, 103,203 in mating each BOSA circuit board such as figure six ...
Plate is connected with each BOSA, specifically, optical transmitting set chip pin and optical transmitting set chip pin are set on BOSA, light hair
Emitter chip pin is electrically connected to the signal emission interface of printed circuit board by soft board, and optical receiver chip pin is also by soft
Plate is electrically connected to the signal receiving interface of printed circuit board, as shown in 003 in Fig. 7.
Further, as shown in figure 8, in encapsulation process, we can also be in the same shell 001, in level side
To first layer encapsulate first group of N wavelength channel transceiver end 0011, it is logical by light wire jumper interface 102 on shell 001 and the external world
Letter；The second layer in the horizontal direction encapsulates second group of N wavelength channel transceiver end 0021, passes through the light wire jumper in same housing 001
Interface 202 and extraneous communication.
Further, the light wire jumper interface in the present invention is not limited solely to two, can also extend to multichannel, such as
MPO interfaces.Optical mode block size also should not necessarily be limited to QSFP-DD modes.
The above, only preferred embodiment are not intended to limit the scope of the present invention, all according to the present invention
Equivalent change or modification made by claim is all that the present invention is covered.
Claims (10)
1. optical module coexists in a kind of multi-wavelength, optical transceiver module, printed circuit board and light wire jumper are provided in optical module shell
Interface, the printed circuit board form horizontally disposed in the optical module shell, it is characterised in that：In the optical transceiver module
One light wire jumper interface of upper setting, is arranged N number of optical transmitting set and N number of optical receiver, N number of light in the optical transceiver module
Transmitter and N number of optical receiver merge with the smooth wire jumper interface optocoupler to be electrically connected with the printed circuit board；In optical module shell
The M optical transceiver modules are set in body, and the M optical transceiver module is with horizontally or vertically in the direction of the printed circuit board
It stacks, and is connect with external fiber by corresponding M light wire jumper interface, wherein M, N >=2.
2. optical module coexists in multi-wavelength as described in claim 1, it is characterised in that：It is additionally provided in the optical transceiver module
One wavelength-division multiplex demultiplexing component and single fiber bi-directional optical interface, the transmitting light of the roads N number of optical transmitting set transmitting N different wave length
Beam, N number of optical receiver receive the incident beam of the roads N different wave length, and the transmitting light beam is jumped with incident beam from the light
Line interface comes in and goes out and shares the wavelength-division multiplex demultiplexing component and single fiber bi-directional optical interface in transmitting light path.
3. optical module coexists in multi-wavelength as claimed in claim 2, it is characterised in that：N number of optical transmitting set and N number of light-receiving
Device one-to-one correspondence is staggered, and the incident beam of the transmitting light beam and the roads N different wave length of the roads N different wave length, one by one
It is corresponding staggeredly to transmit.
4. optical module coexists in multi-wavelength as claimed in claim 2, it is characterised in that：The single fiber bi-directional optical interface is one.
5. optical module coexists in multi-wavelength as claimed in claim 2, it is characterised in that：The single fiber bi-directional optical interface is ring of light shape
Device.
6. optical module coexists in the multi-wavelength as described in claim 1-5, it is characterised in that：The size of the optical transceiver module exists
Within 12mm*36mm*3.5mm or within 6mm*36mm*7mm.
7. optical module coexists in multi-wavelength as claimed in claim 6, it is characterised in that：The smooth wire jumper interface be LC interfaces or
MPO interfaces.
8. optical module coexists in multi-wavelength as claimed in claim 6, it is characterised in that：One to two piece is arranged in the optical module
The printed circuit board.
9. optical module coexists in the multi-wavelength as described in claim 1-5,7-8, it is characterised in that：It is additionally provided in optical module soft
Plate, the optical transceiver module are electrically connected by soft board with the printed circuit board；Light emitting is set on the optical transceiver module
Device chip pin and optical transmitting set chip pin, the optical transmitting set chip pin are electrically connected to the printing by the soft board
The signal emission interface of circuit board, the optical receiver chip pin are electrically connected to the printed circuit board by the soft board
Signal receiving interface.
10. optical module coexists in the multi-wavelength as described in claim 1-5,7-8, it is characterised in that：The M=2, N=4.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710117960.XA CN108535820A (en) | 2017-03-01 | 2017-03-01 | Optical module coexists in a kind of multi-wavelength |
| PCT/CN2018/077187 WO2018157767A1 (en) | 2017-03-01 | 2018-02-26 | Optical module having multi-wavelength coexistence |
| US16/490,539 US10763987B2 (en) | 2017-03-01 | 2018-02-26 | Transceiver with multi-wavelength coexistence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710117960.XA CN108535820A (en) | 2017-03-01 | 2017-03-01 | Optical module coexists in a kind of multi-wavelength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108535820A true CN108535820A (en) | 2018-09-14 |
Family
ID=63488551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710117960.XA Pending CN108535820A (en) | 2017-03-01 | 2017-03-01 | Optical module coexists in a kind of multi-wavelength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108535820A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109212670A (en) * | 2018-10-10 | 2019-01-15 | 武汉光迅科技股份有限公司 | A kind of wavelength division multiplex device and corresponding optical module |
| CN109211393A (en) * | 2018-10-30 | 2019-01-15 | 无锡法尔胜光电科技有限公司 | A kind of fibre optic hydrophone multichannel integrated photodetector component and its processing technology |
| CN110417476A (en) * | 2019-07-05 | 2019-11-05 | 华为技术有限公司 | A kind of TOSA, BOSA, optical module and optical network device |
| CN112929123A (en) * | 2019-12-06 | 2021-06-08 | 中国电信股份有限公司 | Optical transmission system, method and optical communication system |
| CN113169807A (en) * | 2018-11-20 | 2021-07-23 | 光电子学解决方案公司 | Multi-channel bidirectional optical communication module |
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| CN104348554A (en) * | 2013-07-31 | 2015-02-11 | 成都勤智数码科技股份有限公司 | Access apparatus of optical communication network operation equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109212670A (en) * | 2018-10-10 | 2019-01-15 | 武汉光迅科技股份有限公司 | A kind of wavelength division multiplex device and corresponding optical module |
| CN109211393A (en) * | 2018-10-30 | 2019-01-15 | 无锡法尔胜光电科技有限公司 | A kind of fibre optic hydrophone multichannel integrated photodetector component and its processing technology |
| CN113169807A (en) * | 2018-11-20 | 2021-07-23 | 光电子学解决方案公司 | Multi-channel bidirectional optical communication module |
| CN113169807B (en) * | 2018-11-20 | 2023-10-10 | 光电子学解决方案公司 | Multi-channel bidirectional optical communication module |
| CN110417476A (en) * | 2019-07-05 | 2019-11-05 | 华为技术有限公司 | A kind of TOSA, BOSA, optical module and optical network device |
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| CN112929123A (en) * | 2019-12-06 | 2021-06-08 | 中国电信股份有限公司 | Optical transmission system, method and optical communication system |
| CN112929123B (en) * | 2019-12-06 | 2023-05-02 | 中国电信股份有限公司 | Optical transmission system, method and optical communication system |
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Application publication date: 20180914 |