CN108768534A - A kind of light transmit-receive integrated component - Google Patents
A kind of light transmit-receive integrated component Download PDFInfo
- Publication number
- CN108768534A CN108768534A CN201810674371.6A CN201810674371A CN108768534A CN 108768534 A CN108768534 A CN 108768534A CN 201810674371 A CN201810674371 A CN 201810674371A CN 108768534 A CN108768534 A CN 108768534A
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- Prior art keywords
- laser
- integrated component
- photodetector
- receive integrated
- light transmit
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- 239000013307 optical fiber Substances 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims description 8
- 230000005622 photoelectricity Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 2
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000010354 integration Effects 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 7
- 239000000835 fiber Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 241000282326 Felis catus Species 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
Abstract
The embodiment of the present invention proposes a kind of light transmit-receive integrated component, including：Wave-division multiplexer filter, laser, photodetector and the CMOS asic chips of external connection optical fiber；Wherein, wave-division multiplexer filter, laser, photodetector and CMOS asic chips are mutually encapsulated into same metal cavity；CMOS asic chips include：Pedestal and the function module being fixed on pedestal；Wherein, function module includes：Laser driver, limiting amplifier, trans-impedance amplifier, microcontroller；Using the CMOS technology of low-power consumption, it is incorporated into CMOS asic chips so that integral module can be uniformly encapsulated into metal cavity, so as to external optical fiber.Assembly model in this scheme makes the function of light transmit-receive integrated component entirety electronic device more complete, between high-speed module be connected to chip interior realization, reduce by prior art external circuits strip Lai loss；Function integration is realized, light transmit-receive integrated component convenience when assembled and consistency are improved.
Description
Technical field
The present invention relates to optical communication field, more particularly to a kind of light transmit-receive integrated component.
Background technology
With the rapid development of broadband network in recent years, the transmission speed of digital signal is also gradually taken seriously.Currently, optical fiber
It is that optimal one kind, its feature are that transmission capacity is big in a variety of transmission mediums in broadband network, transmission quality is good, loss
It is small, repeater span length etc..
Fiber broadband is exactly that the data to be transmitted are converted to optical signal by electric signal to be communicated.At the both ends of optical fiber point
It is not equipped with " light cat " and carries out signal conversion.Optical modem, light cat are also referred to as single port optical transmitter and receiver, are to be directed to special user
Environment and the fibre optic transmission equipment of a kind of trio researched and developed.Light cat is a kind of similar to base band modem (digital modulation and demodulations
Device) equipment and base band modem unlike access be optical fiber special line, be optical signal.For photosignal in wide area network
The conversion of conversion and interface protocol, couple in router are wide area network accesses.Photosignal in optoelectronic transceivers LAN
Conversion, and only signal is converted, the not conversion of interface protocol.
Fiber optical transceiver is typically employed in the reality that Ethernet cable can not be covered, must be extended transmission distance using optical fiber
In internet environment, while helping also being played on the network of optical fiber last one kilometer connection to Metropolitan Area Network (MAN) and more outer layer
Huge effect.Have fiber optical transceiver, also to need system being upgraded to optical fiber from copper wire, to be in want of funds, manpower or
The user of time provides a kind of cheap scheme.The effect of fiber optical transceiver is to be converted into the electric signal that we to be sent
Optical signal, and send, further the optical signal received can be converted into electric signal, be input to our receiving terminal.
But what current fiber optical transceiver was produced using the mode of external assembling, and external assembling mode is by band
Splice line loss, consistency is relatively low, and difficulty is higher when high speed optical assembly assembles, and yield is affected.Meanwhile external assembling
The operating temperature of electronic device in mode is difficult to accurately be monitored, thus influences to turn optical signal to electric signal to a certain extent
Efficiency influences transmission range.
Need a kind of more preferably fiber optical transceiver at present as a result,.
Invention content
In view of this, the present invention proposes a kind of light transmit-receive integrated component, to solve the above problems.
Specifically, the present invention proposes embodiment in detail below：
The embodiment of the present invention proposes a kind of light transmit-receive integrated component, including：The wave-division multiplexer filter of external connection optical fiber swashs
Light device, photodetector and CMOS asic chips；Wherein, the wave-division multiplexer filter, the laser, the photoelectricity
Detector and the CMOS asic chips are mutually encapsulated into same metal cavity；
The wave-division multiplexer filter is separately connected the laser and the photodetector；
The laser is all connected with the CMOS asic chips with the photodetector；
The CMOS asic chips include：Pedestal and the function module being fixed on the pedestal；Wherein, the work(
Can module include：Laser driver, limiting amplifier, trans-impedance amplifier, microcontroller；Wherein, the laser driver
Under the control of the microcontroller, the laser transmitting laser is driven to send external connection via the wave-division multiplexer filter
On optical fiber；By the control of the microcontroller, the trans-impedance amplifier will be carried out from the electric signal of the photodetector
Conversion, and transformed electric signal is sent to the limiting amplifier, so that the telecommunications that the limiting amplifier will be got
Number processing be constant amplitude digital voltage signal after export.
In a specific embodiment, the laser driver is high-speed current switch, for being the laser
Input modulation electric current.
In a specific embodiment, the laser is corresponding with threshold current；
Further include power automatic controller in the CMOS asic chips；
The laser driver is described sharp by the power automatic controller under the control of the microcontroller
Light device provide more than the threshold current DC bias current so that the laser can stablize under different temperatures environment it is flat
Laser is exported under equal luminous power.
In a specific embodiment, the laser driver is used to be monitored DC bias current, and
Carry out fault warning.
In a specific embodiment, the photodetector will be for that will pass through coming from for wave-division multiplexer filter reception
The signal of optical fiber is converted to analog current signal.
In a specific embodiment, the trans-impedance amplifier is by the analog current signal from the photodetector
It is converted, generates analog voltage signal.
In a specific embodiment, further include in the CMOS asic chips：The temperature of the laser is carried out
The temperature sensor of monitoring.
In a specific embodiment, further include in the CMOS asic chips：Current control is carried out to control with voltage
Automatically control gain circuitry.
With this, the embodiment of the present invention proposes a kind of light transmit-receive integrated component, including：The wavelength-division multiplex of external connection optical fiber filters
Device, laser, photodetector and CMOS asic chips；Wherein, the wave-division multiplexer filter, the laser, institute
It states photodetector and the CMOS asic chips is mutually encapsulated into same metal cavity；The wave-division multiplexer filter
It is separately connected the laser and the photodetector；The laser is all connected with described with the photodetector
CMOSASIC chips；The CMOS asic chips include：Pedestal and the function module being fixed on the pedestal；Wherein,
The function module includes：Laser driver, limiting amplifier, trans-impedance amplifier, microcontroller；Wherein, the laser
Driver drives the laser transmitting laser to be sent via the wave-division multiplexer filter under the control of the microcontroller
On the optical fiber of external connection；By the control of the microcontroller, the trans-impedance amplifier is by the telecommunications from the photodetector
It number is converted, and transformed electric signal is sent to the limiting amplifier, so that the limiting amplifier will be got
Electric signal processing be constant amplitude digital voltage signal after export.Using the CMOS technology of low-power consumption, it is incorporated into CMOS ASIC cores
Piece so that integral module can be uniformly encapsulated into metal cavity, so as to external optical fiber.Assembly model in this scheme makes light
The function of transceiver component entirety electronic device is more complete, is connected to chip interior realization between high-speed module, reduces
By prior art external circuits strip Lai loss；Function integration is realized, it is when assembled just to improve light transmit-receive integrated component
Profit and consistency.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of structural schematic diagram for light transmit-receive integrated component that the embodiment of the present invention proposes.
Specific implementation mode
Hereinafter, the various embodiments of the disclosure will be described more fully.The disclosure can have various embodiments, and
It can adjust and change wherein.It should be understood, however, that：There is no the various embodiments of the disclosure are limited to spy disclosed herein
Determine the intention of embodiment, but the disclosure should be interpreted as in the spirit and scope for covering the various embodiments for falling into the disclosure
All adjustment, equivalent and/or alternative.
The term used in the various embodiments of the disclosure is used only for the purpose of describing specific embodiments and not anticipates
In the various embodiments of the limitation disclosure.As used herein, singulative is intended to also include plural form, unless context is clear
Chu it is indicated otherwise.Unless otherwise defined, otherwise all terms (including technical terms and scientific terms) used herein have
There is meaning identical with the various normally understood meanings of embodiment one skilled in the art of the disclosure.The term
(term such as limited in the dictionary generally used) is to be interpreted as having and situational meaning in the related technical field
Identical meaning and the meaning that Utopian meaning or too formal will be interpreted as having, unless in the various of the disclosure
It is clearly defined in embodiment.
Embodiment
The embodiment of the invention discloses a kind of light transmit-receive integrated components, as shown in Figure 1, including：The wavelength-division of external connection optical fiber is multiple
With filter, laser, photodetector and CMOS asic chips；Wherein, the wave-division multiplexer filter, the laser
Device, the photodetector and the CMOSASIC chips are mutually encapsulated into same metal cavity；
The wave-division multiplexer filter is separately connected the laser and the photodetector；
The laser is all connected with the CMOS asic chips with the photodetector；
The CMOS asic chips include：Pedestal and the function module being fixed on the pedestal；Wherein, the work(
Can module include：Laser driver, limiting amplifier, trans-impedance amplifier, microcontroller；Wherein, the laser driver
Under the control of the microcontroller, the laser transmitting laser is driven to send external connection via the wave-division multiplexer filter
On optical fiber；By the control of the microcontroller, the trans-impedance amplifier will be carried out from the electric signal of the photodetector
Conversion, and transformed electric signal is sent to the limiting amplifier, so that the telecommunications that the limiting amplifier will be got
Number processing be constant amplitude digital voltage signal after export.
Specifically, using CMOS (Complementary Metal present solution provides a kind of
OxideSemiconductor, complementary metal oxide semiconductor) technology, based on multi-functional ASIC (one kind for special purpose and
The integrated circuit of design) special chip realize light transmit-receive integrated component (Bi-directional Optical Sub
Assembly, abbreviation BOSA).The present invention light transmit-receive integrated component include：Laser (Laser diode, abbreviation LD), photoelectricity
Detector (Photodetector, abbreviation PD) and a CMOS ASIC special chip.Above-mentioned module is on the same base
Assembling realizes miniaturization using asic technology, can be by itself and wave-division multiplexer filter (Wavelength Division
Multiplexing, abbreviation WDM) it is mutually encapsulated into same metal cavity, and external optical fiber.
With this, so that the function of BOSA entirety electronic devices is more complete in this scheme, being connected between high-speed module
Realized inside CMOS asic chips, reduce by prior art external circuits strip Lai loss；Function integration is realized, is carried
High light transmit-receive integrated component convenience when assembled and consistency；The operating temperature of LD can be accurately detected simultaneously.
Specifically, being contained in CMOS asic chips：Laser driver (Laser Driver, abbreviation LDD), amplitude limit
Amplifier (Limiting Amplifier, abbreviation LA), trans-impedance amplifier (Tran impedance Amplifier, abbreviation
TIA), power automatic controller APC (auto power controller) and microcontroller (Control Block).
Using CMOS ASIC special chip technologies, miniaturization is realized, it can be by itself and wave-division multiplexer filter
(Wavelength Division Multiplexing, abbreviation WDM) is mutually encapsulated into same metal cavity, and external light
It is fine.
In a specific embodiment, the laser driver is high-speed current switch, for being the laser
Input modulation electric current.
In a specific embodiment, the laser is corresponding with threshold current；
Further include power automatic controller in the CMOS asic chips；
The laser driver is described sharp by the power automatic controller under the control of the microcontroller
Light device provide more than the threshold current DC bias current so that the laser can stablize under different temperatures environment it is flat
Laser is exported under equal luminous power.
In a specific embodiment, the laser driver is used to be monitored DC bias current, and
Carry out fault warning.
In a specific embodiment, the photodetector will be for that will pass through coming from for wave-division multiplexer filter reception
The signal of optical fiber is converted to analog current signal.
In a specific embodiment, the trans-impedance amplifier is by the analog current signal from the photodetector
It is converted, generates analog voltage signal.
In a specific embodiment, further include in the CMOS asic chips：The temperature of the laser is carried out
The temperature sensor of monitoring.
In a specific embodiment, further include in the CMOS asic chips：Current control is carried out to control with voltage
Automatically control gain circuitry.
In addition, specifically, as shown in Figure 1, the device of specific this programme may include light emitting link and light-receiving chain
Road
Wherein, the function of light emitting link is made of following functions module：Laser driver is connected with laser, simultaneously
It is connected with microcontroller.Light emitting antenna efficiency principle is the electric signal with information for being received it, passes through photovoltaic principals
Optical signal is converted to, for example can be specifically that laser diode is transmitted by wave-division multiplexer filter (WDM) by laser
Optical fiber.Wherein, laser driver can be a high-speed current switch, can be laser input modulation electric current.Microcontroller
It is connected with laser driver, can be provided for laser slightly larger than threshold current (ITH) by power automatic controller (APC)
DC bias current (IBIAS), making it that can stablize under different temperature environments under average light power (PAVG), the output phase stress
Light.
In addition, laser driver also possesses the functions such as failure warning, bias current monitoring.
As for light-receiving link, then it is made of following functions module：Photodetector, trans-impedance amplifier and limiting amplifier
It is connected, while trans-impedance amplifier, limiting amplifier are connected with controller.Light-receiving antenna efficiency principle is by photodetector
(PD) signal from optical fiber received through wave-division multiplexer filter (WDM) is converted into electric signal, by trans-impedance amplifier
(TIA) it is accessible electric signal by (LA) transformed Electric signal processing with limiting amplifier.Wherein trans-impedance amplifier receives
Be analog current signal, to convert it to analog voltage signal could be identified by signal processing circuit.In controller
Under control, the different signal processing of amplitude that limiting amplifier exports trans-impedance amplifier at constant amplitude digital voltage signal, with
Just it is further processed.Meanwhile controller reaches above-mentioned temperature control by photoelectric detector PD bias circuit controls voltage range
Optimal bit error rate effect.
Further, microcontroller can also be achieved data control in addition to the functions such as temperature control, voltage control.
In the scheme of the application, it is connected with photodetector and laser by wave-division multiplexer filter so that photoelectricity is visited
It surveys device and laser can detect the corresponding wave band of each.The wherein temperature detection of microcontroller implementation, electric current control
System, signal mode conversion, voltage control by temperature sensor, analog-to-digital conversion (ADC), automatically control the realization of gain (AGC) circuit.
Wherein, due to the integrated feature of this scheme, photodetector operating ambient temperature accuracy of detection is promoted so that temperature control effect
Fruit can reach best.Meanwhile the integral feature of this scheme makes signal not to be depleted in long connection circuit, and
Reduce the noise that signal mixes in transmitting distance.
With this, the embodiment of the present invention proposes a kind of light transmit-receive integrated component, including：The wavelength-division multiplex of external connection optical fiber filters
Device, laser, photodetector and CMOS asic chips；Wherein, the wave-division multiplexer filter, the laser, institute
It states photodetector and the CMOS asic chips is mutually encapsulated into same metal cavity；The wave-division multiplexer filter
It is separately connected the laser and the photodetector；The laser is all connected with described with the photodetector
CMOSASIC chips；The CMOS asic chips include：Pedestal and the function module being fixed on the pedestal；Wherein,
The function module includes：Laser driver, limiting amplifier, trans-impedance amplifier, microcontroller；Wherein, the laser
Driver drives the laser transmitting laser to be sent via the wave-division multiplexer filter under the control of the microcontroller
On the optical fiber of external connection；By the control of the microcontroller, the trans-impedance amplifier is by the telecommunications from the photodetector
It number is converted, and transformed electric signal is sent to the limiting amplifier, so that the limiting amplifier will be got
Electric signal processing be constant amplitude digital voltage signal after export.Using the CMOS technology of low-power consumption, it is incorporated into CMOS ASIC cores
Piece so that integral module can be uniformly encapsulated into metal cavity, so as to external optical fiber.Assembly model in this scheme makes light
The function of transceiver component entirety electronic device is more complete, is connected to chip interior realization between high-speed module, reduces
By prior art external circuits strip Lai loss；Function integration is realized, it is when assembled just to improve light transmit-receive integrated component
Profit and consistency.
It will be appreciated by those skilled in the art that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, module in attached drawing or
Flow is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in device in implement scene can be described according to implement scene into
Row is distributed in the device of implement scene, can also be carried out respective change and is located at the one or more dresses for being different from this implement scene
In setting.The module of above-mentioned implement scene can be merged into a module, can also be further split into multiple submodule.
Aforementioned present invention serial number is for illustration only, does not represent the quality of implement scene.
Disclosed above is only several specific implementation scenes of the present invention, and still, the present invention is not limited to this, Ren Heben
What the technical staff in field can think variation should all fall into protection scope of the present invention.
Claims (8)
1. a kind of light transmit-receive integrated component, which is characterized in that including：Wave-division multiplexer filter, laser, the photoelectricity of external connection optical fiber
Detector and CMOS asic chips；Wherein, the wave-division multiplexer filter, the laser, the photodetector, with
And the CMOS asic chips are mutually encapsulated into same metal cavity；
The wave-division multiplexer filter is separately connected the laser and the photodetector；
The laser is all connected with the CMOS asic chips with the photodetector；
The CMOS asic chips include：Pedestal and the function module being fixed on the pedestal；Wherein, the function mould
Block includes：Laser driver, limiting amplifier, trans-impedance amplifier, microcontroller；Wherein, the laser driver is in institute
Under the control for stating microcontroller, the laser transmitting laser is driven to send the optical fiber of external connection via the wave-division multiplexer filter
On；By the control of the microcontroller, the trans-impedance amplifier converts the electric signal from the photodetector,
And transformed electric signal is sent to the limiting amplifier, so that the Electric signal processing that the limiting amplifier will be got
To be exported after the digital voltage signal of constant amplitude.
2. a kind of light transmit-receive integrated component as described in claim 1, which is characterized in that the laser driver is high speed electricity
Stream switch, for inputting modulation electric current for the laser.
3. a kind of light transmit-receive integrated component as described in claim 1, which is characterized in that the laser is corresponding with threshold value electricity
Stream；
Further include power automatic controller in the CMOS asic chips；
The laser driver is the laser by the power automatic controller under the control of the microcontroller
The DC bias current more than the threshold current is provided, so that the laser can stablize average light under different temperatures environment
Laser is exported under power.
4. a kind of light transmit-receive integrated component as described in claim 1, which is characterized in that the laser driver is used for straight
Stream bias current is monitored, and carries out fault warning.
5. a kind of light transmit-receive integrated component as described in claim 1, which is characterized in that the photodetector will be for that will pass through
The signal from optical fiber that wave-division multiplexer filter receives is converted to analog current signal.
6. a kind of light transmit-receive integrated component as claimed in claim 5, which is characterized in that the trans-impedance amplifier will come from described
The analog current signal of photodetector is converted, and analog voltage signal is generated.
7. a kind of light transmit-receive integrated component as described in claim 1, which is characterized in that also wrapped in the CMOSASIC chips
It includes：The temperature sensor that the temperature of the laser is monitored.
8. a kind of light transmit-receive integrated component as described in claim 1, which is characterized in that also wrapped in the CMOSASIC chips
It includes：It carries out current control and automatically controls gain circuitry with voltage-controlled.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810674371.6A CN108768534A (en) | 2018-06-27 | 2018-06-27 | A kind of light transmit-receive integrated component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810674371.6A CN108768534A (en) | 2018-06-27 | 2018-06-27 | A kind of light transmit-receive integrated component |
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| Publication Number | Publication Date |
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Family
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111600659A (en) * | 2020-04-30 | 2020-08-28 | 珠海格力电器股份有限公司 | Light receiving circuit |
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| CN203590231U (en) * | 2013-05-30 | 2014-05-07 | 武汉电信器件有限公司 | CXP optical transmit-receive module |
| CN208424371U (en) * | 2018-06-27 | 2019-01-22 | 湖北自贸区东芯科技有限公司 | A kind of light transmit-receive integrated component |
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- 2018-06-27 CN CN201810674371.6A patent/CN108768534A/en active Pending
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| CN2540711Y (en) * | 2002-05-13 | 2003-03-19 | 飞博创（成都）科技有限公司 | Single-fiber bidirectional optical transmit-receive module |
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