CN104467972A - 100G QSFP28 SR4 parallel optical transceiver module and packaging method thereof - Google Patents
100G QSFP28 SR4 parallel optical transceiver module and packaging method thereof Download PDFInfo
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Abstract
A 100G QSFP28 SR4 parallel optical transceiver module carries out data recovery processing on 100G electrical signals through a first clock data recovery module so that after continuing to modulate and demodulate the electrical signals after data recovery processing is carried out, an array driving module can drive a laser transmitting module to convert the electrical signals into optical signals, then the optical signals are coupled to an optical fiber and transmitted to a photovoltaic conversion module, the photovoltaic conversion module converts the received optical signals into electrical signals, four paths of 25G electrical signals output by a master control end are converted into four paths of 25G parallel optical signals through the photovoltaic conversion module, consequently, the 100G electrical signals are propagated in the form of the optical signals, an optical multiplexer is not needed, thus the size of the 100G QSFP28 SR4 parallel optical transceiver module is reduced, and the manufacturing technology is simplified. In addition, the invention provides a packaging method of the 100G QSFP28 SR4 parallel optical transceiver module.
Description
Technical field
The present invention relates to parallel optical module receive-transmit system, particularly relate to a kind of structure simple 100G QSFP28 SR4 parallel light transceiving module and method for packing thereof.
Background technology
Along with the growth of the network bandwidth, 10G speed can not meet the transmission requirement of communication data, and in the application network such as telecommunications network and data center, 100G transmission rate becomes inevitable solution.Electrical interface and consensus standard clear, unified when, exploitation 100G QSFP+ is provided with the feasibility in application.Concrete, join over an access network in the short-distance transmission such as port and cloud computation data center exchanges data, 100G parallel optical module needs onboard data selector and splitter, this makes cost higher, although the device long transmission distance of integrated data selector and splitter, but complex process, and reliability is not high.
Summary of the invention
Based on this, be necessary to provide a kind of structure simple 100G QSFP28 SR4 parallel light transceiving module.
A kind of 100G QSFP28 SR4 parallel light transceiving module, for transmitting 100G signal with the form of light signal; Comprise: the first clock and data recovery module, array driver module, laser emitting module, photoelectric conversion module and electronic signal processing module;
Described first clock and data recovery module is used for the 100G signal of telecommunication of input to carry out data recovery process, and the signal of telecommunication after process is outputted to described array driver module, described array driver module is used for the signal of telecommunication of reception to carry out modulation /demodulation process, and the signal of telecommunication after process is outputted to described laser emitting module; Described laser emitting module is used for converting the described signal of telecommunication to light signal, and is coupled in optical fiber; Described light signal gives described photoelectric conversion module via Optical Fiber Transmission, and described photoelectric conversion module receives by described light signal switching electrical signals after described light signal, and the signal of telecommunication is exported to described electronic signal processing module; Described electronic signal processing module outputs to master control end after being used for the signal of telecommunication being carried out successively current conversion voltage, amplification process.
Wherein in an embodiment, described first clock and data recovery module comprises propertional regulator, and described propertional regulator is used for the 100G signal of telecommunication of input to carry out data recovery process, wherein, the described 100G signal of telecommunication is divided into 4 tunnel inputs, and every road signal magnitude is 25G.
Wherein in an embodiment, described array driver module comprises array driving chip, and described array driving chip is luminous for controlling described laser emitting module.
Wherein in an embodiment, also comprise input trans-impedance amplifier and input saturation amplifier; The 100G signal of telecommunication that described input trans-impedance amplifier is used for described first clock and data recovery module exports is converted to voltage signal by current signal, and the voltage signal after conversion is exported to described input saturation amplifier, described input saturation amplifier is used for described voltage signal to be enlarged into the discernible voltage signal of described laser emitting module.
Wherein in an embodiment, also comprise FAULT detection module, BIAS current load module, signal detection module, the first pre-emphasis module and the first serial control module, respectively FAULT detection, BIAS current load, input, preemphasis, Serial Control process are carried out to the 100G telecommunications that described first clock and data recovery module exports.
Wherein in an embodiment, described laser emitting module comprises vertical cavity surface arrangement of laser emitters.
Wherein in an embodiment, described photoelectric conversion module comprises photoconductor matrix, and described photoconductor matrix is used for the light signal via Optical Fiber Transmission to be converted to current signal.
Wherein in an embodiment, described electronic signal processing module comprises output trans-impedance amplifier and output violent change amplifier, described output trans-impedance amplifier is used for the current signal that described photoconductor matrix exports to be converted to voltage signal, and described voltage signal is exported to described output violent change amplifier, described output violent change amplifier is used for described voltage signal to be converted to the receivable voltage signal of master control end.
Wherein in an embodiment, also comprise LOS signal detection module, the second pre-emphasis module and the second serial control module, respectively LOS input, preemphasis and Serial Control process are carried out to the voltage signal that described output violent change amplifier exports.
Above-mentioned 100G QSFP28 SR4 parallel light transceiving module carries out data recovery process by the first clock and data recovery module to the 100G signal of telecommunication, make array driver module after continuing modulation /demodulation to the signal of telecommunication carried out after data recovery process, light signal can be converted the electrical signal to by driving laser transmitter module, photoelectric conversion module is transferred to again by optical signal to optical fiber, photoelectric conversion module converts the light signal of reception to the signal of telecommunication, thus, the signal of telecommunication that master control end exports converts light signal to via photoelectric conversion module, thus realize the 100G signal of telecommunication and propagate with the form of light signal, without the need to adopting optical multiplexer, therefore, the volume of 100G QSFP28 SR4 parallel light transceiving module is reduced, and simplify manufacture craft.
In addition, a kind of structure simple 100G QSFP28 SR4 method for packing of parallel light transceiving module is also provided.
A kind of method for packing of 100G QSFP28 SR4 parallel light transceiving module, the printed circuit board (PCB) comprised the first clock and data recovery module, array driver module, laser emitting module, photoelectric conversion module and the electronic signal processing module in above-mentioned 100G QSFP28 SR4 parallel light transceiving module impresses in QSFP+SR4 parallel optical module is reserved on soldering opening, wherein, described laser emitting module, described photoelectric conversion module adopt 45° angle coupled modes and coupling fiber, and optical fiber 45° angle inclined-plane is attached at described laser emitting module and described photoelectric conversion module.
The printed circuit board (PCB) that first clock and data recovery module, array driver module, laser emitting module, photoelectric conversion module and electronic signal processing module impress in QSFP+SR4 parallel optical module is reserved the upper of soldering opening by the mode of impression by the method for packing of above-mentioned 100G QSFP28 SR4 parallel light transceiving module, therefore, it is possible to realize the transmitting terminal of QSFP+SR4 parallel optical module in the mode of active coupling and receive power-off optical coupling, relative to the passive coupling mode of traditional independent transmitting and receiving chip, said method is succinct and intuitively, easy and simple to handle being easy to realizes.
Accompanying drawing explanation
Fig. 1 is the module map of 100G QSFP28 SR4 parallel light transceiving module;
Fig. 2 (a) is vertical cavity surface arrangement of laser emitters and coupling fiber schematic diagram;
Fig. 2 (b) is photoconductor matrix and coupling fiber schematic diagram.
Embodiment
As shown in Figure 1, be the module map of 100G QSFP28 SR4 parallel light transceiving module.
A kind of 100G QSFP28 SR4 parallel light transceiving module, for transmitting 100G signal with the form of light signal; Comprise: the first clock and data recovery module 101, array driver module 102, laser emitting module 103, photoelectric conversion module 104 and electronic signal processing module (not shown).
Described first clock and data recovery module 101 is for carrying out data recovery process by the 100G signal of telecommunication of input, and the signal of telecommunication after process is outputted to described array driver module 102, the signal of telecommunication after process for the signal of telecommunication of reception is carried out modulation /demodulation process, and is outputted to described laser emitting module 103 by described array driver module 102; Described laser emitting module 103 for converting the described signal of telecommunication to light signal, and is coupled in optical fiber; Described light signal gives described photoelectric conversion module 104 via Optical Fiber Transmission, and described photoelectric conversion module 104 receives by described light signal switching electrical signals after described light signal, and the signal of telecommunication is exported to described electronic signal processing module (not shown); Described electronic signal processing module (not shown) outputs to master control end 105 after being used for the signal of telecommunication being carried out successively current conversion voltage, amplification process.
First clock and data recovery module 101 comprises propertional regulator, and described propertional regulator is used for the 100G signal of telecommunication of input to carry out data recovery process, and wherein, the described 100G signal of telecommunication is divided into 4 tunnel inputs, and every road signal magnitude is 25G.
Described array driver module 102 comprises array driving chip, and described array driving chip is luminous for controlling described laser emitting module 103.
100G QSFP28 SR4 parallel light transceiving module also comprises input trans-impedance amplifier 106 and input saturation amplifier 107; Described input trans-impedance amplifier 106 is converted to voltage signal for the 100G signal of telecommunication described first clock and data recovery module 101 exported by current signal, and the voltage signal after conversion is exported to described input saturation amplifier 107, described input saturation amplifier 107 is for being enlarged into the discernible voltage signal of described laser emitting module 103 by described voltage signal.
100G QSFP28 SR4 parallel light transceiving module also comprises FAULT detection module, BIAS current load module, signal detection module, the first pre-emphasis module and the first serial control module, carries out FAULT detection, BIAS current load, input, preemphasis, Serial Control process respectively to the 100G telecommunications that described first clock and data recovery module 101 exports.
Laser emitting module 103 comprises vertical cavity surface arrangement of laser emitters.
Laser emitting module 103 is for becoming 4 road 25G parallel light signals by 4 road 25G signal of telecommunication corresponding conversion.
Photoelectric conversion module 104 comprises photoconductor matrix, and described photoconductor matrix is used for the light signal via Optical Fiber Transmission to be converted to current signal.
100G QSFP28 SR4 parallel light transceiving module also comprises output trans-impedance amplifier 108 and output violent change amplifier 109, described output trans-impedance amplifier 108 is converted to voltage signal for the current signal exported by described photoconductor matrix, and described voltage signal is exported to described output violent change amplifier 109, described output violent change amplifier 109 is for being converted to the receivable voltage signal of master control end 105 by described voltage signal.
100G QSFP28 SR4 parallel light transceiving module also comprises second clock data recovery module, second clock data recovery module is used for carrying out data recovery process to the light signal after several trans-impedance amplifier 108 and output violent change amplifier 109 process, and the light signal after process is outputted to master control end 105.
100G QSFP28 SR4 parallel light transceiving module also comprises LOS signal detection module, the second pre-emphasis module and the second serial control module, carries out LOS input, preemphasis and Serial Control process respectively to the voltage signal that described output violent change amplifier exports.
Based on above-mentioned all embodiments, the operation principle of 100G QSFP28 SR4 parallel light transceiving module is as follows:
In the present embodiment, due to transmission is the 100G signal of telecommunication, generally the 100G signal of telecommunication is divided into the 4 road signals of telecommunication, i.e. the transmission of the 4*25G signal of telecommunication.Therefore, ASIC (Application Specific Integrated Circuits, application-specific integrated circuit (ASIC)) Serdes (SERializer serializer/DESerializer deserializer) is adopted to be CEI-28G-VSR interface.Transmitting terminal TX exports 4 road 25G light signals by the conversion of QSFP, and receiving terminal RX receives 4 road 25G light signals and exports the 4 road 25G signals of telecommunication by the conversion of QSFP, realizes the opto-electronic conversion of 100 signals.
In transmitting procedure, in order to be transmitted with the form of light signal by the 100G signal of telecommunication, therefore, the signal of telecommunication is carried out electro-optic conversion, opto-electronic conversion successively.
Concrete, be loaded in optical fiber after transmitting terminal carries out modulation /demodulation to the signal of telecommunication.Owing to being generally used for short-distance transmission, therefore adopt the mode of multimode fiber 850nm laser directly modulation.The core diameter of multimode fiber is conducive to optical signal more greatly in optical fiber.In the process of signal of telecommunication transmitting photo-signal, adopt 4 road array driving chip to control vertical cavity surface arrangement of laser emitters luminous, namely convert electrical signals to light signal.Then transmit in optical signal to multimode fiber.
By optical fiber by after in optical signal transmission to photoconductor matrix, namely receiving terminal needs to carry out modulation /demodulation to light signal, by the photoelectric effect principle of photoconductor matrix, light signal is converted to faint current signal.Then through exporting trans-impedance amplifier 108, current signal is converted to voltage signal, then carries out limited range enlargement through output violent change amplifier 109 pairs of voltage signals and convert the signal of telecommunication that master control end 105 can receive to.Therefore, it is possible to realize 4 road 25G high speed transmission of signals of QSFP+SR4 parallel optical module.
In electro-optic conversion process, QSFP+SR4 parallel optical module also comprises MCU control circuit, and MCU control circuit is used for carrying out Interface Controller and digital diagnostic monitoring to QSFP+SR4 parallel optical module.Digital diagnostic monitoring comprises utilizing emitted light power, received optical power, BIAS electric current, temperature, the isoparametric monitoring of supply voltage, makes master control end 105 effectively can obtain the performance characteristic of QSFP+SR4 parallel optical module.
MCU control circuit adopts chip ADUC7020, comprise peripheral circuit and bottom software, communicating with the I2C of QSFP+SR4 parallel optical module for realizing master control end 105, meeting the digital diagnostic monitoring of QSFP+SR4 parallel optical module and the interface control function of QSFP+SR4 parallel optical module.Simulation serial control interface regulates to be launched drive circuit and receives amplifying circuit and then debugging QSFP+SR4 parallel optical module parameter, meets the requirement of 100G optical module transmission objective.
Above-mentioned 100G QSFP28 SR4 parallel light transceiving module carries out data recovery process by the first clock and data recovery module 101 pairs of 100G signals of telecommunication, make array driver module 102 after continuing modulation /demodulation to the signal of telecommunication carried out after data recovery process, light signal can be converted the electrical signal to by driving laser transmitter module 103, photoelectric conversion module 104 is transferred to again by optical signal to optical fiber, photoelectric conversion module 104 converts the light signal of reception to the signal of telecommunication, the 4 road 25G signals of telecommunication that master control end 105 exports convert to after light signal sends to the process of electronic signal processing module (not shown) via photoelectric conversion module 104 and output to master control end 105, be specially, output in optical fiber after converting 4 road 25G parallel light signals to and transmit, thus realize the 100G signal of telecommunication and propagate with the form of light signal, without the need to adopting optical multiplexer, therefore, the volume of 100G QSFP28 SR4 parallel light transceiving module is reduced, and simplify manufacture craft.
Based on above-mentioned all embodiments, a kind of method for packing of 100G QSFP28 SR4 parallel light transceiving module, comprise the first clock and data recovery module 101 in above-mentioned 100G QSFP28 SR4 parallel light transceiving module, array driver module 102, laser emitting module 103, the printed circuit board (PCB) that photoelectric conversion module 104 and electronic signal processing module (not shown) impress in QSFP+SR4 parallel optical module is reserved on soldering opening, wherein, described laser emitting module 103, described photoelectric conversion module 104 adopts 45° angle coupled modes and coupling fiber, optical fiber 45° angle inclined-plane is attached at described laser emitting module 103 and described photoelectric conversion module 104.
QSFP+SR4 parallel optical module has the little advantage of volume, but for the circuit interface chip of 4 road high speed signals, encapsulation technology requires higher.General integrated chip volume is too large, can not be welded on printed circuit board (PCB).Therefore, in the present embodiment, the packing forms impression of nude film is adopted on a printed circuit.Array driving chip, vertical cavity surface arrangement of laser emitters, photoconductor matrix, trans-impedance amplifier, limiting amplifier must be selected not to be had the nude film of packaging pin to realize.Concrete, adopt gold thread array driving chip, vertical cavity surface arrangement of laser emitters, photoconductor matrix, trans-impedance amplifier, limiting amplifier to be connected with the interface pad on printed circuit board (PCB).Preferably, adopt and directly reserve impression pad interface on the printed circuit board (PCB) of QSFP+SR4 parallel optical module, the pattern that vertical cavity surface arrangement of laser emitters, photoconductor matrix are placed on the printed circuit board (PCB) of QSFP+SR4 parallel optical module is impressed and optical coupling to realize chip simultaneously.Said method effectively adopts the mode of active coupling to realize the optical coupling of the transmitting and receiving of QSFP+SR4 parallel optical module, and compared to the passive coupling mode transmitting and receiving separately chip, said method is succinctly directly perceived, easy realization simple to operate.
In the present embodiment, realize the optical transport function of QSFP+SR4 parallel optical module, optical signal transmitting terminal must changed is to Optical Fiber Transmission, and the light signal of receiving terminal couples light to photoconductor matrix.Namely from the optical fiber coupled light to that the vertical cavity surface arrangement of laser emitters of transmitting terminal sends.What receive from the optical fiber of receiving terminal couples light to photoconductor matrix.As shown in Fig. 2 (a) He Fig. 2 (b), adopt the method that miter angle FA (Fiber Array) is coupled, the fiber array being miter angle inclined-plane by fiber end face connects vertical cavity surface arrangement of laser emitters, photoconductor matrix.Launched by total reflection principle coupling light in optical fiber that vertical cavity surface arrangement of laser emitters is launched.What optical fiber was received couples light in photoconductor matrix, and its miter angle optical fiber inclined-plane to be positioned at above vertical cavity surface arrangement of laser emitters and photoconductor matrix and to be close to.
The method for packing of above-mentioned 100G QSFP28 SR4 parallel light transceiving module passes through the mode of impression by the first clock and data recovery module 101, array driver module 102, laser emitting module 103, the printed circuit board (PCB) that photoelectric conversion module 104 and electronic signal processing module (not shown) impress in QSFP+SR4 parallel optical module reserves the upper of soldering opening, therefore, it is possible to realize the transmitting terminal of QSFP+SR4 parallel optical module in the mode of active coupling and receive power-off optical coupling, relative to the passive coupling mode of traditional independent transmitting and receiving chip, said method is succinctly directly perceived, easy and simple to handle being easy to realizes.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a 100G QSFP28SR4 parallel light transceiving module, for transmitting 100G signal with the form of light signal; It is characterized in that, comprising: the first clock and data recovery module, array driver module, laser emitting module, photoelectric conversion module and electronic signal processing module;
Described first clock and data recovery module is used for the 100G signal of telecommunication of input to carry out data recovery process, and the signal of telecommunication after process is outputted to described array driver module, described array driver module is used for the signal of telecommunication of reception to carry out modulation /demodulation process, and the signal of telecommunication after process is outputted to described laser emitting module; Described laser emitting module is used for converting the described signal of telecommunication to light signal, and is coupled in optical fiber; Described light signal gives described photoelectric conversion module via Optical Fiber Transmission, and described photoelectric conversion module receives by described light signal switching electrical signals after described light signal, and the signal of telecommunication is exported to described electronic signal processing module; Described electronic signal processing module outputs to master control end after being used for the signal of telecommunication being carried out successively current conversion voltage, amplification process.
2. 100G QSFP28SR4 parallel light transceiving module according to claim 1, it is characterized in that, described first clock and data recovery module comprises propertional regulator, described propertional regulator is used for the 100G signal of telecommunication of input to carry out data recovery process, wherein, the described 100G signal of telecommunication is divided into 4 tunnel inputs, and every road signal magnitude is 25G.
3. 100G QSFP28SR4 parallel light transceiving module according to claim 1, is characterized in that, described array driver module comprises array driving chip, and described array driving chip is luminous for controlling described laser emitting module.
4. 100G QSFP28SR4 parallel light transceiving module according to claim 3, is characterized in that, also comprises input trans-impedance amplifier and input saturation amplifier; The 100G signal of telecommunication that described input trans-impedance amplifier is used for described first clock and data recovery module exports is converted to voltage signal by current signal, and the voltage signal after conversion is exported to described input saturation amplifier, described input saturation amplifier is used for described voltage signal to be enlarged into the discernible voltage signal of described laser emitting module.
5. 100G QSFP28SR4 parallel light transceiving module according to claim 3, it is characterized in that, also comprise FAULT detection module, BIAS current load module, signal detection module, the first pre-emphasis module and the first serial control module, respectively FAULT detection, BIAS current load, input, preemphasis, Serial Control process are carried out to the 100G telecommunications that described first clock and data recovery module exports.
6. 100G QSFP28SR4 parallel light transceiving module according to claim 1, it is characterized in that, described laser emitting module comprises vertical cavity surface arrangement of laser emitters.
7. 100G QSFP28SR4 parallel light transceiving module according to claim 1, it is characterized in that, described photoelectric conversion module comprises photoconductor matrix, and described photoconductor matrix is used for the light signal via Optical Fiber Transmission to be converted to current signal.
8. 100G QSFP28SR4 parallel light transceiving module according to claim 7, it is characterized in that, described electronic signal processing module comprises output trans-impedance amplifier and output violent change amplifier, described output trans-impedance amplifier is used for the current signal that described photoconductor matrix exports to be converted to voltage signal, and described voltage signal is exported to described output violent change amplifier, described output violent change amplifier is used for described voltage signal to be converted to the receivable voltage signal of master control end.
9. 100G QSFP28SR4 parallel light transceiving module according to claim 8, it is characterized in that, also comprise LOS signal detection module, the second pre-emphasis module and the second serial control module, respectively LOS input, preemphasis and Serial Control process are carried out to the voltage signal that described output violent change amplifier exports.
10. the method for packing of a 100G QSFP28SR4 parallel light transceiving module, it is characterized in that, comprise the first clock and data recovery module in the 100G QSFP28SR4 parallel light transceiving module described in claim 1-9 any one, array driver module, laser emitting module, the printed circuit board (PCB) that photoelectric conversion module and electronic signal processing module impress in QSFP+SR4 parallel optical module is reserved on soldering opening, wherein, described laser emitting module, described photoelectric conversion module adopts 45° angle coupled modes and coupling fiber, optical fiber 45° angle inclined-plane is attached at described laser emitting module and described photoelectric conversion module.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106506066A (en) * | 2016-12-11 | 2017-03-15 | 广东海信宽带科技有限公司 | A kind of colourless dense wave division multipurpose access network optical line terminal optical module |
| CN106899352A (en) * | 2017-04-17 | 2017-06-27 | 武汉飞鹏光科技有限公司 | A kind of photoelectric conversion device based on QSFP28 optical modules |
| CN111835423A (en) * | 2020-08-07 | 2020-10-27 | 武汉锐奥特科技有限公司 | Communication system of QSFP28 type packaged 100G optical module |
| CN114244442A (en) * | 2021-12-10 | 2022-03-25 | 武汉电信器件有限公司 | Q-packaged high-speed parallel optical interconnection module and implementation method |
| CN114884573A (en) * | 2021-11-15 | 2022-08-09 | 国网新源控股有限公司 | Single-mode fiber-based trigger signal transmission device and method |
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- 2014-10-23 CN CN201410572711.6A patent/CN104467972A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106506066A (en) * | 2016-12-11 | 2017-03-15 | 广东海信宽带科技有限公司 | A kind of colourless dense wave division multipurpose access network optical line terminal optical module |
| CN106899352A (en) * | 2017-04-17 | 2017-06-27 | 武汉飞鹏光科技有限公司 | A kind of photoelectric conversion device based on QSFP28 optical modules |
| CN111835423A (en) * | 2020-08-07 | 2020-10-27 | 武汉锐奥特科技有限公司 | Communication system of QSFP28 type packaged 100G optical module |
| CN114884573A (en) * | 2021-11-15 | 2022-08-09 | 国网新源控股有限公司 | Single-mode fiber-based trigger signal transmission device and method |
| CN114244442A (en) * | 2021-12-10 | 2022-03-25 | 武汉电信器件有限公司 | Q-packaged high-speed parallel optical interconnection module and implementation method |
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