CN105763245A - Optical transceiving module - Google Patents
Optical transceiving module Download PDFInfo
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- CN105763245A CN105763245A CN201410797580.1A CN201410797580A CN105763245A CN 105763245 A CN105763245 A CN 105763245A CN 201410797580 A CN201410797580 A CN 201410797580A CN 105763245 A CN105763245 A CN 105763245A
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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
- H04B10/03—Arrangements for fault recovery
- H04B10/032—Arrangements for fault recovery using working and protection systems
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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
- H04B10/40—Transceivers
Abstract
The invention discloses an optical transceiving module including a receiving side optical signal processing unit used for receiving optical signals of a working channel and a protection channel and converting the optical signals to electric signals and outputting the electric signals to a multi-channel selection unit; the multi-channel selection unit used for receiving the electric signals of the working channel and the protection channel and selecting the electric signals of the working channel or the protection channel as the output; a receiving side electric signal processing unit used for processing the electric signals output by the multi-channel selection and then outputting; a sending side electric signal processing unit used for processing electric signals to be sent by a sending side and outputting to the sending side optical signal processing unit; a sending side optical signal processing unit used for receiving electric signals output by the sending side electric signal processing unit and generating and outputting working channel optical signals and protection channel signals according to the electric signals. According to the invention, a protection function can be realized in the optical transceiving module, the single board size can be reduced, the integration level is improved and switching response time is shortened.
Description
Technical field
The present invention relates to technical field of photo communication, in particular a kind of optical transceiver module.
Background technology
Along with wavelength-division multiplex technique large-scale application on long distance line, and the becoming increasingly popular of the broadband technology of user access networks, Metropolitan Area Network (MAN) is as the network of bridge terminal user and long distance line net, and development relatively lags behind, and is increasingly becoming the bottleneck of optical-fiber network capacity and development.Currently, with the IP data service being representative develop rapidly and 3G/4G dispose cry grow to even greater heights, all propose the requirement of capacity and function aspects to Metropolitan Area Network (MAN).Now widely used 10G optical-fiber network can not meet Internet user's quantity and the application needs to bandwidth of rapid growth, and market needs high speed optical communication system urgently.100G optical transceiver module wins the application of increasing market.
Current 100G optical transceiver module, such as, CFP (CentumForm-factorPluggable) optical module generally includes consisting of part: laser instrument, detector, drive circuit, control circuit, rate converter (Gearbox) and optical multiplexer/demultiplexer etc..
But; current OTN (OpticalTransportNetwork; optical transfer network) or PTN (PacketTransportNetwork; Packet Transport Network;) etc. Web vector graphic CFP module time, defencive function (such as, 1+1 protection etc.) be on the board being integrated with CFP module realize; protection response speed is long for switching time slow, pretection switch, adds the complexity of board.
Summary of the invention
The technical problem to be solved is to provide a kind of optical transceiver module, it is possible to realizes defencive function inside optical transceiver module, reduces board dimension, improve integrated level, shortens and switch response time.
In order to solve above-mentioned technical problem, the invention provides a kind of optical transceiver module, including:
Receive optical signals processing unit, for receiving service aisle and the optical signal of protection passage, be converted to the signal of telecommunication and export to multi-path choice unit；
Multi-path choice unit, for receiving service aisle and the signal of telecommunication of protection passage, selects the signal of telecommunication of service aisle or protection passage as output；
Receive side electric signal processing unit, for the signal of telecommunication of multi-path choice unit output is processed and exported；
Sending side electric signal processing unit, processes and exports for the signal of telecommunication that sending side to be sent to sending side optical signal processing unit；
Sending side optical signal processing unit, for receiving the signal of telecommunication of sending side electric signal processing unit output, produces service aisle optical signal and protection passage optical signal according to the signal of telecommunication and exports.
Further, this optical transceiver module also includes following feature:
Described multi-path choice unit includes one or more alternative circuit；
Described alternative circuit includes input block, control unit and output unit；
Input block, for receiving service aisle and the signal of telecommunication of protection passage；
Control unit, is used for judging whether pretection switch condition meets, and exports control signal to output unit according to judged result；
Output unit, is used for selecting the signal of telecommunication of service aisle or protection passage as output according to described control signal.
Further, this optical transceiver module also includes following feature:
Control unit, is used for judging whether pretection switch condition meets, and exports control signal to output unit according to judged result, including:
When opening protection; if the output semaphore lock success of multi-path choice unit and the intensity of optical signal of service aisle are more than or equal to threshold value; then output control signal is to output unit, and described control signal instruction output unit selects the signal of telecommunication of service aisle as output；
When opening protection; if the output signal non-locking of multi-path choice unit or the intensity of optical signal of service aisle are less than threshold value; then output control signal is to output unit, and described control signal instruction output unit selects the signal of telecommunication of protection passage as output.
Further, this optical transceiver module also includes following feature:
Control unit, is used for judging whether pretection switch condition meets, and exports control signal to output unit according to judged result, including:
When not opening protection, output control signal is to output unit, and described control signal instruction output unit selects the signal of telecommunication of service aisle as output.
Further, this optical transceiver module also includes following feature:
Described reception side electric signal processing unit, including one or more trans-impedance amplifier being sequentially connected with, limiting amplifier and clock data restorer part；
Described trans-impedance amplifier, for receiving the current signal of described multi-path choice unit output, is converted to voltage signal by described current signal, and output is to limiting amplifier；
Limiting amplifier, for receiving the voltage signal of described trans-impedance amplifier output, carries out constant amplitude amplification and shaping, and output is to clock recovery device；
Described clock recovery device, for receiving the signal of telecommunication of limiting amplifier output, is timed and Regeneration Treatment, and output is to upstream device.
Further, this optical transceiver module also includes following feature:
Described clock recovery device, is additionally operable to the output locking warning signal when locking failure to the received signal.
Further, this optical transceiver module also includes following feature:
Described reception optical signals processing unit includes optical demultiplexer and photodetector；
Described optical demultiplexer, for receiving signal the optical signal of demultiplexed different wave length from optical fiber, output is to each photodetector；
Described photodetector, is used for receiving optical signal, is converted to the signal of telecommunication and exports to multi-path choice unit.
Further, this optical transceiver module also includes following feature:
Described reception optical signals processing unit includes optical demultiplexer, photodetector and trans-impedance amplifier；
Described optical demultiplexer, for receiving signal the optical signal of demultiplexed different wave length from optical fiber, output is to each photodetector；
Described photodetector, is used for receiving optical signal, is converted to current signal and exports to trans-impedance amplifier；
Described trans-impedance amplifier, is used for receiving current signal, and described current signal is converted to voltage signal, and output is to multi-path choice unit.
Further, this optical transceiver module also includes following feature:
Described sending side electric signal processing unit includes one or more equalizer being sequentially connected with and clock recovery device；
Described equalizer, the signal of telecommunication for sending side to be sent carries out equilibrium treatment, and output is to clock recovery device；
Described clock recovery device, for receiving the signal of telecommunication of equalizer output, is timed and Regeneration Treatment, and output is to sending side optical signal processing unit.
Further, this optical transceiver module also includes following feature:
Described sending side optical signal processing unit include being sequentially connected with one or more one drive two circuit, one or more groups laser instrument and optical multiplexer；
Described one drives two circuit, for driving one group of laser instrument according to the road signal of telecommunication received；Arbitrary group of laser instrument includes two laser instrument；
Described laser array, for producing the different optical signal of one group of wavelength of carrying identical data, wherein a road optical signal is as service aisle, and another road optical signal is as protection passage；
Described optical multiplexer, carries out multiplexing for the optical signal that each group of laser instrument is produced.
Further, this optical transceiver module also includes following feature:
Described optical transceiver module is CFP module.
Compared with prior art; a kind of optical transceiver module provided by the invention; by using a multiple laser instrument of driver drives in the sending side of optical transceiver module; multiselect one circuit is used to select service aisle and protection passage receiving side; thus achieving the defencive function of light path in optical transceiver module; reduce board dimension, improve integrated level, shorten and switch response time.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of optical transceiver module of the embodiment of the present invention.
Fig. 2 is the structural representation of a kind of optical transceiver module (100GCFP module) of the embodiment of the present invention.
Fig. 3 is the schematic diagram of alternative circuit in the 100GCFP module shown in Fig. 2.
Fig. 4 one drives the schematic diagram of two circuit in the 100GCFP module shown in Fig. 2.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with accompanying drawing, embodiments of the invention are described in detail.It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can combination in any mutually.
As it is shown in figure 1, embodiments provide a kind of optical transceiver module, including:
Receive optical signals processing unit, for receiving service aisle and the optical signal of protection passage, be converted to the signal of telecommunication and export to multi-path choice unit；
Multi-path choice unit, for receiving service aisle and the signal of telecommunication of protection passage, selects the signal of telecommunication of service aisle or protection passage as output；
Receive side electric signal processing unit, for the signal of telecommunication of multi-path choice unit output is processed and exported；
Sending side electric signal processing unit, processes and exports for the signal of telecommunication that sending side to be sent to sending side optical signal processing unit；
Sending side optical signal processing unit, for receiving the signal of telecommunication of sending side electric signal processing unit output, produces service aisle optical signal and protection passage optical signal according to the signal of telecommunication and exports.
Described optical transceiver module can also include following feature:
Wherein, described optical transceiver module is CFP module；Such as, described optical transceiver module is 100GCFP module.
Wherein, described multi-path choice unit includes one or more multiselect one circuit；
Described multiselect one circuit can be alternative circuit；
Described alternative circuit includes input block, control unit and output unit；
Input block, for receiving service aisle and the signal of telecommunication of protection passage；
Control unit, is used for judging whether pretection switch condition meets, and exports control signal to output unit according to judged result；
Output unit, is used for selecting the signal of telecommunication of service aisle or protection passage as output according to described control signal.
Wherein, control unit, it is used for judging whether pretection switch condition meets, and exports control signal to output unit according to judged result, including:
When opening protection; if the output semaphore lock success of multi-path choice unit and the intensity of optical signal of service aisle are more than or equal to threshold value; then output control signal is to output unit, and described control signal instruction output unit selects the signal of telecommunication of service aisle as output；
When opening protection; if the output signal non-locking of multi-path choice unit or the intensity of optical signal of service aisle are less than threshold value; then output control signal is to output unit, and described control signal instruction output unit selects the signal of telecommunication of protection passage as output.
Wherein, control unit, it is used for judging whether pretection switch condition meets, and exports control signal to output unit according to judged result, including:
When not opening protection, output control signal is to output unit, and described control signal instruction output unit selects the signal of telecommunication of service aisle as output.
Wherein, described reception side electric signal processing unit, including one or more trans-impedance amplifier (TransimpedanceAmplifier being sequentially connected with, TIA), limiting amplifier (LimitingAmplifier, and clock and data recovery (ClockDataRecovery, CDR) device LIA)；
Described trans-impedance amplifier, for receiving the current signal of described multi-path choice unit output, is converted to voltage signal by described current signal, and output is to limiting amplifier；
Limiting amplifier, for receiving the voltage signal of described trans-impedance amplifier output, carries out constant amplitude amplification and shaping, and output is to clock recovery device；
Described clock recovery device, for receiving the signal of telecommunication of limiting amplifier output, is timed and Regeneration Treatment, and output is to upstream device.
Wherein, described clock recovery device, it is additionally operable to the output locking warning signal when locking failure to the received signal.
Wherein, described reception optical signals processing unit includes optical demultiplexer and photodetector；
Described optical demultiplexer, for receiving signal the optical signal of demultiplexed different wave length from optical fiber, output is to each photodetector；
Described photodetector, is used for receiving optical signal, is converted to the signal of telecommunication and exports to multi-path choice unit.
Wherein, described reception optical signals processing unit includes optical demultiplexer, photodetector and trans-impedance amplifier；
Described optical demultiplexer, for receiving signal the optical signal of demultiplexed different wave length from optical fiber, output is to each photodetector；
Described photodetector, is used for receiving optical signal, is converted to current signal and exports to trans-impedance amplifier；
Described trans-impedance amplifier, is used for receiving current signal, and described current signal is converted to voltage signal, and output is to multi-path choice unit.
Wherein, described sending side electric signal processing unit includes one or more equalizer being sequentially connected with and clock recovery device；
Described equalizer, the signal of telecommunication for sending side to be sent carries out equilibrium treatment, and output is to clock recovery device；
Described clock recovery device, for receiving the signal of telecommunication of equalizer output, is timed and Regeneration Treatment, and output is to sending side optical signal processing unit.
Wherein, described sending side optical signal processing unit include being sequentially connected with one or more one drive two circuit, one or more groups laser instrument and optical multiplexer；
Described one drives two circuit, for driving one group of laser instrument according to the road signal of telecommunication received；Arbitrary group of laser instrument includes two laser instrument；
Described laser array, for producing the different optical signal of one group of wavelength of carrying identical data, wherein a road optical signal is as service aisle, and another road optical signal is as protection passage；
Described optical multiplexer, carries out multiplexing for the optical signal that each group of laser instrument is produced.
Application example
As shown in Figure 2, the 100GCFP module of the present invention, receives side and includes optical demultiplexer (DEMUX), photoelectric receiving device (APD or PIN), alternative circuit (2:1 circuit), trans-impedance amplifier (TIA), limiting amplifier (LIA), CDR；Sending side includes equalizer, CDR, laser driver (LDDRIVER), laser instrument, optical multiplexer (MUX).
The effect of the optical demultiplexer receiving side is the optical signal decompositing ten wavelength from the optical signal received, and wavelength is λ 1, λ 2 respectively ... λ 10.This device can use the DEMUX of AWG (ArrayedWaveguideGrating, array waveguide grating) technology.
Receiving the photoelectric receiving device of side, can select PIN or APD according to the difference of transmission range, its effect is that the optical signal receiving each wavelength is converted to the signal of telecommunication.This part has photoelectric current testing circuit simultaneously.The detection of photoelectric current testing circuit is used to receive the intensity of optical signal.
As it is shown on figure 3, the effect receiving side alternative circuit (2:1 circuit) is to select in two input signals according to protection criteria, export.Protection criteria includes:
When opening protection (EN signal is high level); as the CDR locking LOCK signal (CDRLOCK) produced represents locking (signal is high level); and the intensity of the optical signal of service aisle (passage that λ j represents) is more than or equal to threshold value, then select service aisle (passage that λ j represents) as output；
When opening protection (EN signal is high level); as the CDR locking LOCK signal (CDRLOCK) produced represents non-locking; or; the intensity of the optical signal of service aisle (passage that λ j represents) less than threshold value, then selects protection passage (passage that λ j+1 represents) as output；
When not opening protection (EN signal is low level), select the signal of telecommunication of service aisle (passage that λ j represents) as output；
Alternative circuit can include comparator and door or door and output circuit；
Wherein, the intensity of the optical signal of service aisle (λ j represent passage) is compared by comparator with threshold value, when the intensity of optical signal of service aisle is more than or equal to threshold value, exports high level, when the intensity of optical signal of service aisle is less than threshold value, output low level；
Input with door includes three signals: protection enables signal (EN), CDR produces locking LOCK signal (CDRLOCK) and the output signal of comparator, with door, above three signal is carried out logical AND operation, result export to or door；Wherein, protection represents unlatching defencive function when enabling signal (EN) high level, represents and do not open defencive function during low level；Represent semaphore lock during CDRLOCK signal high level, during low level, represent signal non-locking；
Or the input of door includes two signals: protection enables signal (EN) signal after inverter, and with the output signal of door, or above-mentioned two signal carries out logic or operation by door, and result is as the control signal of output circuit；Described control signal can also export to processor, processor know according to this control signal and be currently operated in service aisle or protection passage；
When or when door is output as high level, output circuit selects the signal of telecommunication of service aisle (passage that λ j represents) as output；When or when door is output as low level, output circuit selects the signal of telecommunication of protection passage (passage that λ j+1 represents) as output；
Alternative circuit can also realize by other forms such as FPGA.
The effect receiving side trans-impedance amplifier (TIA) is that photoelectric current is converted to voltage signal, gives the amplitudes such as limiting amplifier (LIA) carries out and amplifies and shaping, and this process is conducive to data and clock recovery.
The effect receiving side CDR is the signal of telecommunication to be timed and regenerates, and reduces signal jitter, improves signal quality.
Sending side equalizer (EQ) circuit, effect is that signal is carried out equilibrium treatment, it is ensured that signal waveform is not distorted.
The effect of sending side CDR is the signal of telecommunication to be timed and regenerates, and reduces signal jitter, improves signal quality.
Sending side LDDRIVER effect is the modulation signal producing laser instrument, provides modulation signal to laser instrument.In order to realize 1+1 protection, two laser instrument of a driver drives herein.The wavelength of the optical signal produced by the two of same driver control laser instrument is different.
As shown in Figure 4, drive circuit herein includes, two audions (audion 1, audion 2), constant-current source, coupling electric capacity, matching networks.Driving audion from the CDR signal come, audion output goes to drive laser instrument λ j, λ j+1 through overcoupling electric capacity.This partial circuit can also realize by other forms such as power splitters.
Sending side LD is laser instrument, and effect is the optical signal converting electrical signals into specific wavelength.These wavelength include: λ 1, λ 2 ... λ 10.
The effect of sending side optical multiplexer (MUX) is, the optical multiplexed signal of ten wavelength is used inside an optical fiber, produces a mixed optical signal.
This 100GCFP module uses two laser instrument of a driver drives in sending side; alternative circuit is employed receiving side; thus achieving the 1+1 protection function of light path in CFP module; be conducive to the extensive application in Metropolitan Area Network (MAN) or main line looped network of the CFP module; reduce board dimension, improve integrated level, reduce and switch response time; be conducive to wavelength protection, add the added value of CFP module.
Additionally, this 100GCFP module has high speed optoelectronic translation function, integrated level is high, and stable performance, light receiving unit has low in energy consumption, sensitivity high, is conducive to the long-distance transmissions of signal；TIA can accurately convert electrical signals into voltage signal, and LIA ensure that signal amplitude is in the reasonable scope, it is ensured that late-class circuit normal operation；Light emission component is capable of long-distance transmissions, wherein EQ circuit ensure that amplitude and the waveform of digital signal, clock and data recovery ce circuit has good high frequency debounce characteristic, synchrodata data in transmitting procedure in network communications are conducive to recover, the overall performance making module is improved, and meets the needs of current optical-fiber network long-range data transmission.
A kind of optical transceiver module that above-described embodiment provides; by using two laser instrument of a driver drives in the sending side of optical transceiver module; alternative circuit is used to select service aisle and protection passage receiving side; thus achieving the 1+1 protection function of light path in CFP module; reduce board dimension; improve integrated level, shorten and switch response time.
One of ordinary skill in the art will appreciate that all or part of step in said method can be carried out instruction related hardware by program and complete, described program can be stored in computer-readable recording medium, such as read only memory, disk or CD etc..Alternatively, all or part of step of above-described embodiment can also use one or more integrated circuit to realize, and correspondingly, each module/unit in above-described embodiment can adopt the form of hardware to realize, it would however also be possible to employ the form of software function module realizes.The present invention is not restricted to the combination of the hardware and software of any particular form.
It should be noted that; the present invention also can have other various embodiments; when without departing substantially from present invention spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and deformation according to the present invention, but these change accordingly and deformation all should belong to the scope of the claims appended by the present invention.
Claims (11)
1. an optical transceiver module, including:
Receive optical signals processing unit, for receiving service aisle and the optical signal of protection passage, be converted to the signal of telecommunication and export to multi-path choice unit；
Multi-path choice unit, for receiving service aisle and the signal of telecommunication of protection passage, selects the signal of telecommunication of service aisle or protection passage as output；
Receive side electric signal processing unit, for the signal of telecommunication of multi-path choice unit output is processed and exported；
Sending side electric signal processing unit, processes and exports for the signal of telecommunication that sending side to be sent to sending side optical signal processing unit；
Sending side optical signal processing unit, for receiving the signal of telecommunication of sending side electric signal processing unit output, produces service aisle optical signal and protection passage optical signal according to the signal of telecommunication and exports.
2. optical transceiver module as claimed in claim 1, it is characterised in that:
Described multi-path choice unit includes one or more alternative circuit；
Described alternative circuit includes input block, control unit and output unit；
Input block, for receiving service aisle and the signal of telecommunication of protection passage；
Control unit, is used for judging whether pretection switch condition meets, and exports control signal to output unit according to judged result；
Output unit, is used for selecting the signal of telecommunication of service aisle or protection passage as output according to described control signal.
3. optical transceiver module as claimed in claim 2, it is characterised in that:
Control unit, is used for judging whether pretection switch condition meets, and exports control signal to output unit according to judged result, including:
When opening protection; if the output semaphore lock success of multi-path choice unit and the intensity of optical signal of service aisle are more than or equal to threshold value; then output control signal is to output unit, and described control signal instruction output unit selects the signal of telecommunication of service aisle as output；
When opening protection; if the output signal non-locking of multi-path choice unit or the intensity of optical signal of service aisle are less than threshold value; then output control signal is to output unit, and described control signal instruction output unit selects the signal of telecommunication of protection passage as output.
4. optical transceiver module as claimed in claim 3, it is characterised in that:
Control unit, is used for judging whether pretection switch condition meets, and exports control signal to output unit according to judged result, including:
When not opening protection, output control signal is to output unit, and described control signal instruction output unit selects the signal of telecommunication of service aisle as output.
5. optical transceiver module as claimed in claim 1, it is characterised in that:
Described reception side electric signal processing unit, including one or more trans-impedance amplifier being sequentially connected with, limiting amplifier and clock data restorer part；
Described trans-impedance amplifier, for receiving the current signal of described multi-path choice unit output, is converted to voltage signal by described current signal, and output is to limiting amplifier；
Limiting amplifier, for receiving the voltage signal of described trans-impedance amplifier output, carries out constant amplitude amplification and shaping, and output is to clock recovery device；
Described clock recovery device, for receiving the signal of telecommunication of limiting amplifier output, is timed and Regeneration Treatment, and output is to upstream device.
6. optical transceiver module as claimed in claim 5, it is characterised in that:
Described clock recovery device, is additionally operable to the output locking warning signal when locking failure to the received signal.
7. optical transceiver module as claimed in claim 1, it is characterised in that:
Described reception optical signals processing unit includes optical demultiplexer and photodetector；
Described optical demultiplexer, for receiving signal the optical signal of demultiplexed different wave length from optical fiber, output is to each photodetector；
Described photodetector, is used for receiving optical signal, is converted to the signal of telecommunication and exports to multi-path choice unit.
8. optical transceiver module as claimed in claim 1, it is characterised in that:
Described reception optical signals processing unit includes optical demultiplexer, photodetector and trans-impedance amplifier；
Described optical demultiplexer, for receiving signal the optical signal of demultiplexed different wave length from optical fiber, output is to each photodetector；
Described photodetector, is used for receiving optical signal, is converted to current signal and exports to trans-impedance amplifier；
Described trans-impedance amplifier, is used for receiving current signal, and described current signal is converted to voltage signal, and output is to multi-path choice unit.
9. optical transceiver module as claimed in claim 1, it is characterised in that:
Described sending side electric signal processing unit includes one or more equalizer being sequentially connected with and clock recovery device；
Described equalizer, the signal of telecommunication for sending side to be sent carries out equilibrium treatment, and output is to clock recovery device；
Described clock recovery device, for receiving the signal of telecommunication of equalizer output, is timed and Regeneration Treatment, and output is to sending side optical signal processing unit.
10. optical transceiver module as claimed in claim 1, it is characterised in that:
Described sending side optical signal processing unit include being sequentially connected with one or more one drive two circuit, one or more groups laser instrument and optical multiplexer；
Described one drives two circuit, for driving one group of laser instrument according to the road signal of telecommunication received；Arbitrary group of laser instrument includes two laser instrument；
Described laser array, for producing the different optical signal of one group of wavelength of carrying identical data, wherein a road optical signal is as service aisle, and another road optical signal is as protection passage；
Described optical multiplexer, carries out multiplexing for the optical signal that each group of laser instrument is produced.
11. the optical transceiver module as according to any one of claim 1-10, it is characterised in that:
Described optical transceiver module is CFP module.
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| CN201410797580.1A CN105763245A (en) | 2014-12-18 | 2014-12-18 | Optical transceiving module |
| PCT/CN2015/096550 WO2016095715A1 (en) | 2014-12-18 | 2015-12-07 | Optical transceiving module and implementation method therefor |
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| CN201410797580.1A CN105763245A (en) | 2014-12-18 | 2014-12-18 | Optical transceiving module |
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| CN111316575A (en) * | 2017-12-05 | 2020-06-19 | 华为技术有限公司 | Data sending and receiving method in PON system, network equipment and system |
| WO2024007839A1 (en) * | 2022-07-07 | 2024-01-11 | 华为技术有限公司 | Optical communication method, olt, optical module, optical communication system, and storage medium |
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| CN113225051B (en) * | 2021-04-23 | 2022-11-08 | 中国电子科技集团公司第二十九研究所 | Transmitting assembly capable of adapting to pulse and continuous wave working modes simultaneously |
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| JP2014183482A (en) * | 2013-03-19 | 2014-09-29 | Fujitsu Ltd | Transmission/reception system, transmission device, reception device, and control method for transmission/reception system |
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| US20110176812A1 (en) * | 2010-01-20 | 2011-07-21 | Hitachi, Ltd. | Optical communication card and communication device |
| CN201608719U (en) * | 2010-04-14 | 2010-10-13 | 东南大学 | Wavelength division multiplexing passive optical network protection switching device |
| CN102244540A (en) * | 2010-05-11 | 2011-11-16 | 华为技术有限公司 | Optical module and method for protecting optical layer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111316575A (en) * | 2017-12-05 | 2020-06-19 | 华为技术有限公司 | Data sending and receiving method in PON system, network equipment and system |
| CN111316575B (en) * | 2017-12-05 | 2021-06-22 | 华为技术有限公司 | Data sending and receiving method in PON system, network equipment and system |
| CN110176960A (en) * | 2019-06-27 | 2019-08-27 | 成都光创联科技有限公司 | A kind of novel single fiber bi-directional multichannel input optical module |
| CN110176960B (en) * | 2019-06-27 | 2023-11-17 | 成都光创联科技有限公司 | Novel single-fiber bidirectional multichannel input optical module |
| WO2024007839A1 (en) * | 2022-07-07 | 2024-01-11 | 华为技术有限公司 | Optical communication method, olt, optical module, optical communication system, and storage medium |
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| WO2016095715A1 (en) | 2016-06-23 |
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