CN111835423A - Communication system of QSFP28 type packaged 100G optical module - Google Patents
Communication system of QSFP28 type packaged 100G optical module Download PDFInfo
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- CN111835423A CN111835423A CN202010786082.2A CN202010786082A CN111835423A CN 111835423 A CN111835423 A CN 111835423A CN 202010786082 A CN202010786082 A CN 202010786082A CN 111835423 A CN111835423 A CN 111835423A
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- module
- optical
- electric signal
- qsfp28
- optical module
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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
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
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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
- G02B6/43—Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections
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- 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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
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- 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
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
-
- 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
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/691—Arrangements for optimizing the photodetector in the receiver
-
- 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
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/697—Arrangements for reducing noise and distortion
- H04B10/6971—Arrangements for reducing noise and distortion using equalisation
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a communication system of a QSFP28 type packaged 100G optical module, which belongs to the technical field of optical modules, wherein single-board connection is processed through bidirectional services of an optoelectronic path and an optoelectronic path of a multi-channel optical module, compared with the prior art, the maintenance cost of the optical module can be reduced, and when a fault occurs due to abnormal performance and failure of the optical module, the maintenance can be completed only by replacing related parts without replacing the whole optical module, so that the fault recovery of the optical module is simpler and more convenient, and the time and the labor are saved; the electrical signal is converted and modulated by the code pattern of the receiving part, so that the converted electrical signal is conveniently driven, then the electrical signal is converted into an optical signal, and the optical signal is transmitted in a long distance through an optical fiber.
Description
Technical Field
The invention belongs to the technical field of optical modules, and particularly relates to a communication system of a QSFP28 type packaged 100G optical module.
Background
As the demand of people on the network is far and high, the 100G network is rapidly developed, and the 100G optical module is more and more popular, there are several package types at present: CFP/CFP2/CFP4, CXP and QSFP28, especially QSFP28 optical modules are common.
With the development of monolithic hybrid photonic integration technology and silicon-based optoelectronic technology, photonic integration is becoming a recognized trend in the development of optical devices. Therefore, the development of the photonic integration technology has continuously advanced the multi-channel optical module with the technical changes of miniaturization, high integration, low power consumption and low bit rate cost, and the market development of the optical module demands a higher device channel integration level, lower power consumption, a smaller optical module and a higher port density. On one hand, however, as the number of integrated channels of the optical device increases, the reliability of the black box of the integrated optical device inevitably decreases, and in the multi-channel optical module, the module failure rate caused by the optical device increases linearly; on the other hand, with the development of the silicon-based optoelectronic technology, the cost of an optical device in the multi-channel optical module is in a descending trend, the cost of other intelligent control devices and the cost of an electric signal processing device are relatively increased, and the optical module is directly replaced or repaired due to performance faults of the optical module, so that the maintenance cost is increased, or the time and labor are wasted when the optical module is repaired in a factory.
Disclosure of Invention
Technical problem to be solved
In order to overcome the defects in the prior art, the invention provides a communication system of a QSFP28 type packaged 100G optical module, which solves the problems that the existing optical module needs to be returned to the factory for maintenance or the whole optical module needs to be directly replaced after the optical module fails, thereby wasting time and labor and increasing the maintenance cost.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a communication system of a QSFP28 type packaged 100G optical module comprises a clock data recovery module, an array driving module, a laser emission module, a photoelectric conversion module and an electric signal processing module.
And the clock data recovery module is used for performing data recovery processing on the input 100G electric signals.
And the array driving module is used for carrying out modulation and demodulation processing on the received electric signals.
The laser emission module converts an electrical signal into an optical signal and couples the optical signal into an optical fiber.
The photoelectric conversion module receives the coupled optical signal and converts the optical signal into an electrical signal.
And the electric signal processing module is used for sequentially carrying out current conversion voltage and amplification processing on the electric signal and then outputting the electric signal to the main control end.
As a further scheme of the invention: the clock data recovery module comprises an equalizer, a code pattern converter, a scrambler, an encoder and a clock.
As a further scheme of the invention: the array driving module comprises a driver, and the driver is positioned in the laser emission module.
As a further scheme of the invention: the laser emitting module includes a light source, ATC, APC, light monitoring and warning outputs.
As a further scheme of the invention: the photoelectric conversion module comprises a photoelectric detector, an amplifier, an equalizer, a decision device, an APC and a clock restorer.
As a further scheme of the invention: the electric signal processing module comprises a decoder, a scrambler and a code pattern inverse converter, and transmits an electric signal to the main control end.
(III) advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
1. according to the communication system of the QSFP28 type packaged 100G optical module, single-board connection is processed through bidirectional services of an electro-optical path and an electro-optical path of a multi-channel optical module, compared with the prior art, the maintenance cost of the optical module can be reduced, and when a fault occurs due to abnormal performance and failure of the optical module, the maintenance can be completed only by replacing related parts without replacing the whole optical module, so that the fault recovery of the optical module is simpler and more convenient, and the time and labor are saved.
2. The communication system of the QSFP28 type packaged 100G optical module is convenient for driving the converted electric signal by performing code pattern conversion and modulation on the electric signal at a receiving part, then converting the electric signal into an optical signal, performing long-distance transmission through an optical fiber, converting the optical signal into the electric signal again by using a photoelectric conversion module, and decoding, scrambling and code pattern conversion on the converted electric signal, so that the front and the back of the signal transmission are kept consistent, the device is specially used for optical interconnection in data communication application, a digital diagnosis function is built in, 4 independent full-duplex channels are provided, and each channel can reach the data rate of 25 Gbps.
3. The communication system of the QSFP28 type packaged 100G optical module adopts the advanced 100G transmission technology to provide the connection between the rack switch and the core network for the data center, the panel width density is improved by 150% compared with the 40G QSFP proposal, and meanwhile, the power consumption of the QSFP28 optical module is usually not more than 3.5W when in work, and is much lower than that of other 100G optical modules.
Drawings
Fig. 1 is a schematic structural diagram of a communication system of a QSFP28 type packaged 100G optical module;
FIG. 2 is a functional block diagram of a communications system of a QSFP28 type packaged 100G optical module;
fig. 3 is a communication structure diagram of a communication system of a 100G optical module packaged by a QSFP28 type.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
As shown in fig. 1-3, the present invention provides a technical solution: a communication system of a QSFP28 type packaged 100G optical module comprises a clock data recovery module, an array driving module, a laser emission module, a photoelectric conversion module and an electric signal processing module.
And the clock data recovery module is used for performing data recovery processing on the input 100G electric signal.
And the array driving module is used for carrying out modulation and demodulation processing on the received electric signals.
And the laser emission module converts the electric signal into an optical signal and couples the optical signal into the optical fiber.
And the photoelectric conversion module is used for receiving the coupled optical signal and converting the optical signal into an electric signal.
And the electric signal processing module is used for sequentially carrying out current conversion voltage and amplification processing on the electric signal and then outputting the electric signal to the main control end.
The clock data recovery module comprises an equalizer, a code pattern converter, a scrambler, an encoder and a clock.
The array driving module comprises a driver, and the driver is positioned in the laser emission module.
The laser emitting module includes a light source, ATC, APC, light monitoring and warning outputs.
The photoelectric conversion module comprises a photoelectric detector, an amplifier, an equalizer, a decision device, an APC and a clock restorer.
The electric signal processing module comprises a decoder, a scrambler and a code pattern inverse converter, and transmits an electric signal to the main control end.
The single-board connection is processed through the photoelectric path of the multi-channel optical module and the bidirectional service of the photoelectric path, compared with the prior art, the maintenance cost of the optical module can be reduced, and when the optical module is abnormal in performance and fails to cause faults, the maintenance can be completed only by replacing related parts without replacing the whole optical module, so that the fault recovery of the optical module is simpler and more convenient, and the time and the labor are saved.
The receiving part carries out code type conversion and modulation on the electric signals, so that the converted electric signals are convenient to drive, then the electric signals are converted into optical signals, long-distance transmission is carried out through optical fibers, the optical signals are converted into the electric signals again by utilizing the photoelectric conversion module, and decoding, scrambling and code type conversion are carried out on the converted electric signals, so that the front and the back of signal transmission are kept consistent, the device is specially used for optical interconnection in data communication application, a digital diagnosis function is built in, 4 independent full-duplex channels are provided, and each channel can reach the data rate of 25 Gbps.
By adopting the advanced 100G transmission technology to provide the connection between the rack switch and the core network for the data center, the board width density is improved by 150% compared with the 40G QSFP scheme, and meanwhile, the power consumption of the QSFP28 optical module is usually not more than 3.5W when the QSFP optical module works, and is much lower than that of other 100G optical modules.
The working principle of the invention is as follows:
during the use, at first, clock data recovery module can carry out data recovery processing with the 100G signal of telecommunication of input, then with the signal of telecommunication input to array driver module after handling, array driver module carries out modem processing with the signal of telecommunication of receiving next, and then transmits to laser emission module, at this part of laser emission module, the signal of telecommunication can be converted into optical signal, then in being coupled to the optic fibre, the optical signal that is coupled can be transmitted for photoelectric conversion module, then convert the signal of telecommunication again, export for signal of telecommunication processing module, signal of telecommunication processing module is used for carrying out current conversion voltage, output to main control end after the amplification process with the signal of telecommunication in proper order at last.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (6)
1. A communication system of a QSFP28 type packaged 100G optical module comprises a clock data recovery module, an array driving module, a laser emission module, a photoelectric conversion module and an electric signal processing module:
the clock data recovery module is used for performing data recovery processing on the input 100G electric signal;
the array driving module is used for modulating and demodulating the received electric signals;
the laser emission module converts an electric signal into an optical signal and is coupled into an optical fiber;
the photoelectric conversion module receives the coupled optical signal and converts the optical signal into an electric signal;
and the electric signal processing module is used for sequentially carrying out current conversion voltage and amplification processing on the electric signal and then outputting the electric signal to the main control end.
2. The communication system of the QSFP28 type packaged 100G optical module according to claim 1, wherein: the clock data recovery module comprises an equalizer, a code pattern converter, a scrambler, an encoder and a clock.
3. The communication system of the QSFP28 type packaged 100G optical module according to claim 1, wherein: the array driving module comprises a driver, and the driver is positioned in the laser emission module.
4. The communication system of the QSFP28 type packaged 100G optical module according to claim 1, wherein: the laser emitting module includes a light source, ATC, APC, light monitoring and warning outputs.
5. The communication system of the QSFP28 type packaged 100G optical module according to claim 1, wherein: the photoelectric conversion module comprises a photoelectric detector, an amplifier, an equalizer, a decision device, an APC and a clock restorer.
6. The communication system of the QSFP28 type packaged 100G optical module according to claim 1, wherein: the electric signal processing module comprises a decoder, a scrambler and a code pattern inverse converter, and transmits an electric signal to the main control end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010786082.2A CN111835423A (en) | 2020-08-07 | 2020-08-07 | Communication system of QSFP28 type packaged 100G optical module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010786082.2A CN111835423A (en) | 2020-08-07 | 2020-08-07 | Communication system of QSFP28 type packaged 100G optical module |
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| CN111835423A true CN111835423A (en) | 2020-10-27 |
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| CN202010786082.2A Pending CN111835423A (en) | 2020-08-07 | 2020-08-07 | Communication system of QSFP28 type packaged 100G optical module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022206330A1 (en) * | 2021-03-31 | 2022-10-06 | Wingcomm Co., Ltd. | Optical fiber interconnection system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022206330A1 (en) * | 2021-03-31 | 2022-10-06 | Wingcomm Co., Ltd. | Optical fiber interconnection system and method |
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Application publication date: 20201027 |