CN109547114A - A kind of SFP encapsulation 100G opto-electronic receiver module - Google Patents
A kind of SFP encapsulation 100G opto-electronic receiver module Download PDFInfo
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- CN109547114A CN109547114A CN201710865689.8A CN201710865689A CN109547114A CN 109547114 A CN109547114 A CN 109547114A CN 201710865689 A CN201710865689 A CN 201710865689A CN 109547114 A CN109547114 A CN 109547114A
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- 230000005693 optoelectronics Effects 0.000 title claims abstract description 53
- 238000005538 encapsulation Methods 0.000 title abstract description 8
- 230000003287 optical effect Effects 0.000 claims abstract description 53
- 238000012545 processing Methods 0.000 claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 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 description 11
- 238000004891 communication Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 8
- 239000013307 optical fiber Substances 0.000 claims description 7
- 230000005622 photoelectricity Effects 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 3
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 101001024685 Pandinus imperator Pandinin-2 Proteins 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 101150014352 mtb12 gene Proteins 0.000 description 1
- 101150037009 pin1 gene Proteins 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035945 sensitivity Effects 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
- H04B10/60—Receivers
-
- 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
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/424—Mounting of the optical light guide
Abstract
The invention proposes a kind of SFP to encapsulate 100G opto-electronic receiver module, it include: opto-electronic receiver module body, it further include the SFP structure of the internal setting opto-electronic receiver module body, it is set to the optical port structure of the SFP structure side, the opto-electronic receiver module body includes the photoelectric conversion unit being sequentially connected, signal processing unit, data interface unit, the photoelectric conversion unit is connected with the optical port structure, the photoelectric conversion unit is used to the optical signal received being converted into electric signal, the signal processing unit is used to handle the electric signal, the data interface unit is used to carry out that the electric signal to be carried out data to export to equipment.It is small in size to implement a kind of SFP encapsulation 100G opto-electronic receiver module of the invention, Application density height.
Description
Technical field
The present invention relates to a kind of communication module, in particular to a kind of SFP encapsulates 100G opto-electronic receiver module.
Background technique
Currently, the substantially dilatation with operator backbone line bandwidth is promoted, and the quick replacement upgrading of high-speed interface, base
Application requirement is no longer satisfied in the opto-electronic receiver of 10G, 40G interface, 100G interface, which develops into trend, to be made so.SFP
(Small Form-factor Pluggables) is a kind of optoelectronic transceiver module of small-sized encapsulated size, is mainly used in
The encapsulating structure of 10G.Being applied to the opto-electronic receiver module that the acquisition of 100G data shunts currently on the market is mainly CFP2, QSFP28
Encapsulation, but the package dimension of the two is still larger, if in the case where same panel size, the quantity used is sealed far below SFP
Product is filled, so that the overall data process ability under same panel density be caused to be unable to get the configuration of optimization indirectly.
Summary of the invention
More than solving the problems, such as, the present invention provides a kind of optoelectronic transceivers small in size, Application density is high.
The invention discloses a kind of SFP to encapsulate 100G opto-electronic receiver module, comprising: opto-electronic receiver module body further includes
The SFP structure of the inside setting opto-electronic receiver module body, the optical port structure for being set to the SFP structure side, institute
Stating opto-electronic receiver module body includes the photoelectric conversion unit, signal processing unit, data interface unit being sequentially connected, described
Photoelectric conversion unit is connected with the optical port structure, and the photoelectric conversion unit is used to convert the optical signal received
At electric signal, the signal processing unit is used to handle the electric signal, the data interface unit for carry out by
The electric signal carries out data and exports to equipment.
Further, the photoelectric conversion unit includes: opto-electronic receiver detector, trans-impedance amplifier, feed circuit, adopts
Sample circuit and wavelength division multiplexer, wherein the opto-electronic receiver detector completes the conversion of optical signal to electric signal；Described
Trans-impedance amplifier is for amplifying shaping to the electric signal；The feed circuit is used to carry out the optical signal
Feedback forms feedback signal and is input to the sample circuit to correct the sampled value of sample circuit；The wavelength division multiplexer
For the total light received to be carried out partial wave.
Further, the signal processing unit includes microprocessor chip, signal limiter amplifying circuit, sequence circuit,
Wherein, the signal limiter amplifying circuit, sequence circuit are connected with the microprocessor chip, the sequence circuit
For controlling the sampling opportunity of the sample circuit, the signal limiter amplifying circuit is for amplifying sampled signal.
Further, the data interface unit include data link receiving unit, I2C communication interface, power interface with
And monitoring interface, wherein the data link receiving unit is for receiving 100G's in a manner of four tunnel differential data signals
Optical signal；I2C(Inter-Integrated Circuit, inter-integrated circuit) communication interface is for controlling whether to described
Opto-electronic receiver module body is written and read；Power interface to the opto-electronic receiver module body for being powered；Prison
Control interface is used to monitor the quality of the optical signal.
Further, the SFP structure includes pedestal, upper cover and fixed part, and the upper cover is for covering described in conjunction
Pedestal, the fixed part is screwed the upper cover and pedestal.
Further, the fixed part further includes concave-convex bayonet, for plugging optical fiber.
Further, the optical port structure includes optical port, and the optical port and extraneous plug optical fiber are in coaxial direction.
Further, the optical signal of the 100G can be divided into the differential signal of the data link of four road 25G.
Implement a kind of SFP encapsulation 100G opto-electronic receiver module of the invention, there is technical effect beneficial below:
It is big that middle opto-electronic receiver module opto-electronic receiver module closed volume is different from the prior art, leads to same mainboard data processing energy
The not high deficiency of power, the technical program are encapsulated using SFP (Small Form-factor Pluggables), SFP module volume
Half is reduced than GBIC module, can be configured on identical panel and have more one times or more of port number, 100G opto-electronic receiver
It is small in size to minimize module, Application density is high, low in energy consumption, perfect heat-dissipating；The reception of 100G optical signal can be completed, is received sensitive
Degree is high, and performance is stablized.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the functions of modules figure that a kind of SFP of the embodiment of the present invention encapsulates 100G opto-electronic receiver module；
Fig. 2 is that data interface unit arranges pin definition figure up and down in Fig. 1 of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1 and Fig. 2, the embodiment of the present invention, a kind of SFP encapsulation 100G opto-electronic receiver module 1, comprising: photoelectricity
Receiving module ontology 10 further includes the SFP structure 20 of internal setting opto-electronic receiver module body 10, is set to SFP structure 20 1
The optical port structure 30 of side, opto-electronic receiver module body 10 include be sequentially connected photoelectric conversion unit 11, signal processing unit 12,
Data interface unit 13, photoelectric conversion unit 11 are connected with optical port structure 30, what photoelectric conversion unit 11 was used to receive
Optical signal is converted into electric signal, and signal processing unit 12 is for handling electric signal, and data interface unit 13 is for carrying out telecommunications
Number carry out data export to equipment.
Since in industry, SFP module volume ratio GBIC module reduces half, it can be configured on identical panel and have more one
Times or more port number, the module that can be inserted on same pcb board is more, and the data volume of processing is bigger, and processing capacity rises.
Photoelectric conversion unit 11 includes: opto-electronic receiver detector, trans-impedance amplifier, feed circuit, sample circuit and wave
Division multiplexer, wherein opto-electronic receiver detector completes the conversion of optical signal to electric signal；Trans-impedance amplifier be used for electric signal into
Row amplification shaping；Feed circuit forms feedback signal and is input to sample circuit to correct sampling for feeding back to optical signal
The sampled value of circuit；Wavelength division multiplexer is used to the total light received carrying out partial wave.
Photoelectric conversion unit 11 include 4 road opto-electronic receiver detectors, 4 road trans-impedance amplifiers, feed circuit, sample circuit and
Wavelength division multiplexer.
Wavelength division multiplexer by the total light received carry out partial wave, decompositions wavelength representative value be 1295.56nm, 1300.05nm,
1304.58nm,1309.14nm；Wave-length coverage meet agreement provide 1294.53 ~ 1296.59nm, 1299.02 ~ 1301.09nm,
1303.54~1305.63nm、1308.09~1310.19nm。
No. 4 photodetectors complete the conversion of optical signal to electric signal, and have quick AGC detection, guarantee receptivity
Stability, while the light of minimum -15dBM can be detected, guarantee highly sensitive receive.
The current signal that 4 road trans-impedance amplifiers convert detector amplifies shaping, forms voltage signal, send to rear end
Data signal processing unit.
Feed circuit will convert received light, control signal processing unit for rear end and provide original sampled value.
Opto-electronic receiver detector includes the photodiode array for receiving optical signal, what photodiode array was correspondingly connected with
Across resistance/limiting amplifier, the optical signal that fibre ribbon transmits is coupled on photodiode array by light engine, two pole of photoelectricity
Pipe array converts optical signals to electric signal, be transmitted to be correspondingly connected with across resistance/limiting amplifier, and be converted to difference letter
Number, it is transmitted to after feed circuit, sample circuit and wavelength division multiplexer to mainboard.
Signal processing unit 12 includes microprocessor chip, signal limiter amplifying circuit, sequence circuit, wherein signal limit
Width amplifying circuit, sequence circuit are connected with microprocessor chip, and sequence circuit is used to control the sampling opportunity of sample circuit, letter
Number amplitude limiting amplifier circuit is for amplifying sampled signal.
Signal processing unit 12 includes data signal processing circuit and control signal processing circuit.
Wherein, data signal processing circuit includes EQ, LA, CDR, Driver.
EQ refers to data balancing, and the input stage in each channel includes continuous time linear equalization, and it is linear can to carry out 0-12dB
Well-balanced adjustment；
LA refers to that signal limiter amplifies, the function that cutter adjusts for clip level, and clip level adjustment is for compensating direct current level
The input signal of any offset, clip level adjust voltage range and can program within the scope of ± 200mV；
CDR refers to clock and data recovery, the characteristics of according to data-signal, finds the optimal clock phase of sampled data, makes to count
It is reliable and stable according to recovery；
Driver refers to output driver, has the driving capability of 200mVppd to 1100mVppd range.
Signal processing circuit is controlled mainly by MCU((Microcontroller Unit, micro-control unit) it builds, it controls
Signal processing circuit is mainly sampled by internal signal, and algorithm, which calculates, to be realized, is able to achieve supply voltage, temperature, received optical power
Real time monitoring and police instruction.And register configuration is carried out to data signal processing unit by internal I2C communication, it adjusts each
Item important parameter, makes data-signal reach optimization process effect.
Data interface unit 13 includes data link receiving unit, I2C communication interface, power interface and monitors interface,
Wherein, data link receiving unit is used to receive the optical signal of 100G in a manner of four tunnel differential data signals；I2C communication interface
For controlling whether to be written and read opto-electronic receiver module body；Power interface is used to carry out to opto-electronic receiver module body
Power supply；Monitoring interface is used to monitor the size of optical signal.
As shown in Fig. 2, wherein 4 road 25G data link are differential signal, including L0_RX- and L0_RX+, L1_RX- and L1_
RX+, L2_RX- and L2_RX+, L3_RX- and L3_RX+.
I2C communication interface is made of M_SEL, SDA, SCL, and wherein M_SEL is that piece is elected to be use, when M_SEL is low level,
Module then responds I2C bus, allows to carry out I2C read-write operation to module, and when M_SEL is high level, module is then not responding to I2C
Bus does not allow to carry out I2C read-write operation to module；SDA is I2C data line, and SCL is I2C clock line, total fully according to I2C
Wire protocol specification is designed.
Pin2 and pin9 is VCC, pin1, pin10, pin11, pin20 GND in power interface, and design can support every pin
The tolerance of electric current 1A, it is ensured that the stable power-supplying of integral module.
Monitoring interface includes RX_LOS, LOL, M_ABS.Wherein M_ABS function is that module detects in place, when module is in place
Low level is exported, when vacancy exports high level, and system board need to pull up 10K resistance, this function is more convenient for user monitoring panel upper mold
The usage quantity of block；RX_LOS is that module optical power alarming indicates function, when input light is too small, exceeds setting value, then generates
High level output is alerted, user is prompted to need to increase optical power；LOL is the instruction of signal losing lock, as the too poor Shi Zehui of signal quality
High level output is generated, user is prompted to detect signal quality.
SFP structure 20 includes pedestal, upper cover and fixed part, and upper cover closes pedestal for covering, and fixed part is screwed
Upper cover and pedestal.
Fixed part further includes concave-convex bayonet, for plugging optical fiber.
Optical port structure 30 includes optical port, and optical port and extraneous plug optical fiber are in coaxial direction.
Structural unit includes the SFP structure and optical port structure of miniaturization.
The SFP structure of miniaturization includes pedestal, upper cover, fixed device, tripper.
Pedestal and upper cover provide assembly for product and support, and design carries out interior step distribution according to product layout, reaches most
Good heat dissipation performance；
Fixed device samples concave-convex bayonet and 2 screws are fixed, and simplifies production operation.
Tripper samples lever mode, the plug operation being more convenient in actual use.
Optical port structure is designed by precise treatment, it is ensured that optical port and extraneous plug optical fiber are in coaxial direction, guarantee light most
Limits receive.
The optical signal of 100G can be divided into the differential signal of the data link of four road 25G.
The course of work of this SFP encapsulation 100G opto-electronic receiver module 1 are as follows:
100G opto-electronic receiver minimizes the reception that module carries out optical signal by the optical port structure in structural unit, light letter at this time
Number for total light for transmitting of distal end, total light includes 4 signal paths L0, L1, L2, L3.Total light reaches light by optical port structure
The wavelength division multiplexer of electric converting unit, wavelength division multiplexer carry out partial wave to total light, and 4 signal paths are respectively corresponded decomposition output
To No. 4 photodetectors, 4 road wavelength of optical signal are respectively corresponded as L0:1295.56nm, L1:1300.05nm, L2:
1304.58nm, L3:1309.14nm.Optical signal is switched to electric signal by No. 4 photodetectors, by across resistance amplification output to data
Signal processing unit.Feed circuit of photoelectric conversion unit will carry out mirror image to the optical power received and feed back to control during this
Signal processing unit provides information support for real-time monitoring.Data signal processing unit is equally also corresponding 4 tunnel, 4 numbers
After carrying out respective handling according to signal processing unit via EQ, LA, CDR, Driver ..., 4 circuit-switched data signals respectively correspond number
According to interface unit, signal output is carried out, 4 circuit-switched data signals are differential signal, and differential impedance control requires to be 100 ohm.Number
It is docked according to interface unit with application apparatus, the data that equipment is transmitted by data-interface then complete the reception transmission process of signal.
In this course, control signal processing unit is monitored each process, while by register configuration, guaranteeing entire module
Reliability in the course of work.
Implement a kind of SFP encapsulation 100G opto-electronic receiver module of the invention, there is technical effect beneficial below:
It is big that middle opto-electronic receiver module opto-electronic receiver module closed volume is different from the prior art, leads to same mainboard data processing energy
The not high deficiency of power, the technical program are encapsulated using SFP (Small Form-factor Pluggables), and 100G photoelectricity connects
It is small in size to receive miniaturization module, Application density height, low in energy consumption, perfect heat-dissipating；
The reception of 100G optical signal can be completed, receiving sensitivity is high, and performance is stablized；
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of SFP encapsulates 100G opto-electronic receiver module, comprising: opto-electronic receiver module body, which is characterized in that further include inside
The optical port structure that the SFP structure of the opto-electronic receiver module body is set, is set to the SFP structure side, the light
Electric receiving module ontology includes the photoelectric conversion unit, signal processing unit, data interface unit being sequentially connected, the photoelectricity
Converting unit is connected with the optical port structure, and the photoelectric conversion unit is used to the optical signal received being converted into electricity
Signal, the signal processing unit are used to handle the electric signal, and the data interface unit is used to carry out will be described
Electric signal carry out data export to equipment.
2. SFP according to claim 1 encapsulates 100G opto-electronic receiver module, which is characterized in that the photoelectric conversion list
Member includes: opto-electronic receiver detector, trans-impedance amplifier, feed circuit, sample circuit and wavelength division multiplexer, wherein described
Opto-electronic receiver detector completes the conversion of optical signal to electric signal；The trans-impedance amplifier is used to carry out the electric signal
Amplify shaping；The feed circuit forms feedback signal and is input to described adopt for feeding back to the optical signal
Sample circuit is to correct the sampled value of sample circuit；The wavelength division multiplexer is used to the total light received carrying out partial wave.
3. SFP according to claim 2 encapsulates 100G opto-electronic receiver module, which is characterized in that the signal processing unit
Including microprocessor chip, signal limiter amplifying circuit, sequence circuit, wherein the signal limiter amplifying circuit, timing electricity
Microprocessor chip described in Lu Junyu is connected, and the sequence circuit is used to control the sampling opportunity of the sample circuit,
The signal limiter amplifying circuit is for amplifying sampled signal.
4. SFP according to claim 1 encapsulates 100G opto-electronic receiver module, which is characterized in that the data interface unit
Including data link receiving unit, I2C communication interface, power interface and monitoring interface, wherein the data link receives
Unit is used to receive the optical signal of 100G in a manner of four tunnel differential data signals；I2C communication interface is for controlling whether to institute
The opto-electronic receiver module body stated is written and read；Power interface to the opto-electronic receiver module body for being supplied
Electricity；Monitoring interface is used to monitor the quality of the optical signal.
5. SFP according to claim 1 encapsulates 100G opto-electronic receiver module, which is characterized in that the SFP structure includes
Pedestal, upper cover and fixed part, the upper cover, which is used to cover, closes the pedestal, and the fixed part is screwed described
Upper cover and pedestal.
6. SFP according to claim 5 encapsulates 100G opto-electronic receiver module, which is characterized in that the fixed part also wraps
Concave-convex bayonet is included, for plugging optical fiber.
7. SFP according to claim 5 encapsulates 100G opto-electronic receiver module, which is characterized in that the optical port structure packet
Optical port is included, the optical port and extraneous plug optical fiber are in coaxial direction.
8. SFP according to claim 4 encapsulates 100G opto-electronic receiver module, which is characterized in that the light of the 100G is believed
It number can be divided into the differential signal of the data link of four road 25G.
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| CN110011726A (en) * | 2019-04-18 | 2019-07-12 | 深圳市欧凌克光电科技有限公司 | Realize optoelectronic transceiver module, the system and method for optical path auto-switch |
| CN110880954A (en) * | 2019-11-29 | 2020-03-13 | 深圳市光为光通信科技有限公司 | Optical detector receiving assembly |
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