CN105323008B - The configuration method and device of optical transceiver module and its running parameter - Google Patents
The configuration method and device of optical transceiver module and its running parameter Download PDFInfo
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- CN105323008B CN105323008B CN201410318615.9A CN201410318615A CN105323008B CN 105323008 B CN105323008 B CN 105323008B CN 201410318615 A CN201410318615 A CN 201410318615A CN 105323008 B CN105323008 B CN 105323008B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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
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Abstract
The invention discloses the configuration methods and device of a kind of optical transceiver module and its running parameter, wherein, optical transceiver module, it include: controller, including at least photoelectric conversion unit in photoelectric conversion channel and at least electrooptic switching element in electro-optic conversion channel all the way all the way, wherein, controller, it is connected with photoelectric conversion unit and electrooptic switching element, for configuring the running parameter of photoelectric conversion unit and electrooptic switching element, running parameter includes at least one of: operating rate, number of channels and operating mode；Photoelectricity, which changes, turns unit, is converted to electric electric signal function for carrying out optical signal according to running parameter, electrooptic switching element is used to carry out the function that electric signal is converted to optical signal according to running parameter.Through the invention, the running parameter of controller configuration optical transceiver module, allows optical module to be compatible with different scenes.Furthermore in passive optical network application, optical line terminal can be compatible with further types of smooth subscriber unit.
Description
Technical field
The present invention relates to the communications fields, in particular to the configuration method of a kind of optical transceiver module and its running parameter
And device.
Background technique
Passive optical network technique undergoes the development of many years, shows multiple technologies at present and deposits, with passive optical network
(Passive Optical Network, referred to as PON) access is leading situation.
In some specific application scenes, such as high-end user, using point-to-point continuous mode (PtP) technology.Japan,
Based on South Korea and China's deployment ethernet passive optical network (Ethernet Passive Optical Network, referred to as EPON)
Optical access network is wanted, using point-to-multipoint burst mode (PtMP) standard.Most of the big operator in Europe and the U.S. selects gigabit
Passive optical network (Gigabit Passive Optical Network, referred to as GPON) technology.There is wavelength-division in small part area
It is multiplexed a small amount of experimental network of (Wavelength Division Multiplexing, referred to as WDM) PON.
In passive optical network, optical module is as the carrier transmitted between optical network device for no reason at all, and transmitting terminal is by telecommunications
Number it is converted into optical signal, after transmitting by optical fiber, optical signal is converted into electric signal again by receiving end.
Optical module is usually made of opto-electronic device, functional circuit and optical interface etc., and opto-electronic device includes transmitting and connects
Receive two parts.Emitting portion is: the electric signal of one constant bit rate of input drives semiconductor laser after internal drive chip processing
(LD) or light emitting diode (LED) launches the modulated optical signal of respective rate, generally, internal to control automatically with optical power
Circuit processed makes the optical signal power of output keep stablizing.Receiving portion is: by light after the optical signal input optical module of a constant bit rate
Detector is converted to electric signal, the electric signal of output phase code rate after preamplifier.
According to function classification, optical module includes optical receiver module, optical transmission module, optical transceiver module and light forwarding module
Deng.Optical receiver module carries out photoelectric conversion to optical signal, converts optical signals into electric signal for receiving optical signal.Light is sent
Module carries out electro-optic conversion to electric signal, converts the electrical signal to optical signal for sending optical signal.Optical transceiver module, also referred to as
For the integrated module of optical transceiver, for carrying out photoelectric conversion and electro-optic conversion, to carry out sending and receiving for optical signal and electric signal.
In the related technology, after optical module factory, since its hardware configuration determines, its running parameter, therefore, phase can not be changed
Optical module in the technology of pass can only operate in fixed running parameter.Common running parameter includes operating rate, operating mode
Deng.Running parameter is being fixed in optical module work in the related technology, and needed for the optical signal of different user and Electric signal processing
Running parameter is not quite similar, and therefore, optical module in the related technology cannot be compatible with a variety of users simultaneously.
In addition, in the related technology, optical module is single channel, i.e. only one photoelectric conversion channel of optical module or one
Electrooptic switching element.However, needing to handle optical signal using multiple channels simultaneously with the continuous promotion of optical communication system capacity
And electric signal.In order to realize that multiple channel processing optical signals and electric signal in the related technology carry out multiple single channel optical modules
It stacks, i.e., uses multiple single channel optical modules simultaneously, multichannel is formed by the single channel of multiple single channel optical modules.But by
There is physical interface in each single channel optical module, when forming multichannel by multiple single channel optical modules, cause physical interface
Quantity is more.
For running parameter is being fixed since optical module works in the related technology, cause optical transceiver module that can not be compatible with a variety of
The problem of user and single channel optical module stacking lead to the problem more than physical interface, not yet propose effective solution side at present
Case.
Summary of the invention
For running parameter is being fixed since optical transceiver module works in the related technology, cause optical transceiver module that can not be compatible with
The problem of a variety of users, the present invention provides the configuration methods and device of a kind of optical transceiver module and its running parameter, at least
It solves the above problems.
According to an aspect of the invention, there is provided a kind of optical transceiver module, comprising: controller including at least light all the way
The photoelectric conversion unit of electric ALT-CH alternate channel and including at least electrooptic switching element in electro-optic conversion channel all the way, wherein the control
Device processed is connected with the photoelectric conversion unit and the electrooptic switching element, for configuring the photoelectric conversion unit and institute
State the running parameter of electrooptic switching element；The running parameter includes at least one of: operating rate, number of channels and work
Mode, wherein the operating mode includes continuous mode and burst mode；The photoelectricity, which changes, turns unit, for according to the work
Make parameter and carries out photoelectric conversion；The electrooptic switching element, for carrying out electro-optic conversion according to the running parameter.
Optionally, the controller configures the work ginseng for the order of equipment where responding the optical transceiver module
Number, wherein the information of the running parameter is carried in the order.
Optionally, each photoelectric conversion channel, comprising: photodetector, for converting optical signals to photoelectric current；
Trans-impedance amplifier is connected with the photodetector and the controller, can work in the continuous mode or the burst mould
Formula, for the photoelectric current to be converted into voltage signal according to the running parameter；Limiting amplifier, with the trans-impedance amplifier
It is connected, can works in the continuous mode or the burst mode, for carrying out limited range enlargement processing to the voltage signal.
Optionally, each photoelectric conversion channel, further includes: electrical dispersion compensation unit is located at the trans-impedance amplifier
Between the limiting amplifier, can work in the continuous mode or the burst mode, for the voltage signal into
Row electrical dispersion compensation；The limiting amplifier is also used to carry out at limited range enlargement the voltage signal after electrical dispersion compensation
Reason.
Optionally, each photoelectric conversion channel, further includes: data fan out unit, be located at the trans-impedance amplifier with
Between the limiting amplifier, for the voltage signal to be split into first via signal and second road signal, wherein described
Signal is the voltage signal of point-to-multipoint burst mode all the way, and the second road signal is that the voltage of point-to-point continuous mode is believed
Number；The limiting amplifier is connected with the data fan out unit, for carrying out at limited range enlargement to the first via signal
Reason.
Optionally, electro-optic conversion channel described in each road, comprising: laser drive unit is connected with the controller, is used for
Current drive signal is converted the electrical signal to according to the running parameter；Laser is connected with the laser drive unit, uses
In the current drive signal is converted into optical signal.
Optionally, electro-optic conversion channel described in each road, further includes: clock data recovery unit, with the Laser Driven list
The input terminal of member is connected, and has bypass effect, carries out clock recovery for the electric signal to set rate.
Optionally, the laser includes at least one of: and distributed feed-back (Distributed Feed Back, referred to as
For DFB) laser, electro-absorption modulation (Electro-absorption Modulated Laser, referred to as EML).
According to another aspect of the present invention, a kind of configuration method of optical transceiver module running parameter is provided, comprising: connect
The order of equipment where receiving optical transceiver module, wherein the information of running parameter, the running parameter packet are carried in the order
Include at least one of: operating rate, number of channels and operating mode, wherein the operating mode includes continuous mode and dashes forward
Hair mode；The running parameter of the optical transceiver module is configured according to the order.
According to a further aspect of the invention, a kind of configuration device of optical transceiver module running parameter is provided, comprising: connect
Module is received, the order for equipment where receiving optical transceiver module, wherein the information of running parameter is carried in the order,
The running parameter includes at least one of: operating rate, number of channels and operating mode, wherein the operating mode packet
Include continuous mode and burst mode；Configuration module, for configuring the running parameter of the optical transceiver module according to the order.
Through the invention, the running parameter of controller configuration optical transceiver module, allows optical transceiver module to be compatible with difference
Scene.In addition, in the case where multichannel, can also avoid single channel optical module when stacking caused physical port it is excessive
Problem.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural block diagram of optical transceiver module according to an embodiment of the present invention；
Fig. 2 is the system architecture diagram of passive optical network according to an embodiment of the present invention；
Fig. 3 is a kind of structural block diagram of optical transceiver module according to an embodiment of the present invention；
Fig. 4 is the structural block diagram of single channel optical transceiver module according to an embodiment of the present invention；
Fig. 5 is the structural block diagram of another single channel optical transceiver module according to embodiments of the present invention；
Fig. 6 is the structural block diagram of four-way optical transceiver module according to embodiments of the present invention；
Fig. 7 is the flow chart of the configuration method of optical transceiver module running parameter according to an embodiment of the present invention；And
Fig. 8 is the structural block diagram of the configuration device of optical transceiver module running parameter according to an embodiment of the present invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
Fig. 1 is the structural block diagram of optical transceiver module according to an embodiment of the present invention, as shown in Figure 1, the optical transceiver module packet
It includes: controller 102, including at least photoelectric conversion unit 104 in photoelectric conversion channel and including at least electro-optic conversion all the way all the way
The electrooptic switching element 106 in channel, wherein controller 102 is connected with photoelectric conversion unit 104 and electrooptic switching element 106
It connects, for configuring the running parameter of photoelectric conversion unit 104 and electrooptic switching element 106；Photoelectricity, which changes, turns unit 104, is used for root
Photoelectric conversion is carried out according to running parameter；Electrooptic switching element 106, for carrying out electro-optic conversion according to running parameter.
In embodiments of the present invention, above-mentioned running parameter can include but is not limited at least one of: operating rate is led to
Road quantity and operating mode, wherein operating mode includes but is not limited to continuous mode and burst mode.Specifically, each above-mentioned
The operating rate in photoelectric conversion channel, the operating mode in each above-mentioned photoelectric conversion channel, photoelectricity used in photoelectric conversion turn
Change the quantity in photoelectric conversion channel used in channel, photoelectric conversion.
In an embodiment of the embodiment of the present invention, controller 102, for equipment where responding optical transceiver module
Order, configuration work parameter, wherein the information of running parameter is carried in order.
In an embodiment of the embodiment of the present invention, each photoelectric conversion channel, comprising: photodetector is used for
Convert optical signals to photoelectric current；Trans-impedance amplifier is connected with photodetector and controller, can work in continuous mode or dash forward
Hair mode, for photoelectric current to be converted into voltage signal according to running parameter；Limiting amplifier is connected with trans-impedance amplifier, can
Work is in continuous mode or burst mode, for carrying out limited range enlargement processing to voltage signal.
In an embodiment of the embodiment of the present invention, each photoelectric conversion channel can also include: electrical dispersion compensation
Unit can work in continuous mode or the burst mode, between trans-impedance amplifier and limiting amplifier for voltage
Signal carries out electrical dispersion compensation；Limiting amplifier is also used to carry out limited range enlargement processing to the voltage signal after electrical dispersion compensation.
In an embodiment of the embodiment of the present invention, each photoelectric conversion channel can also include: that data are fanned out to list
Member, between trans-impedance amplifier and limiting amplifier, for above-mentioned voltage signal to be split into first via signal and the second tunnel
Signal, wherein first via signal is the voltage signal of point-to-multipoint burst mode, and second road signal is point-to-point continuous mode
Voltage signal；Limiting amplifier is connected with data fan out unit, for carrying out limited range enlargement processing to first via signal.
In an embodiment of the embodiment of the present invention, each road electro-optic conversion channel may include: laser drive unit,
It is connected with controller, for converting the electrical signal to current drive signal according to running parameter；Laser, with Laser Driven list
Member is connected, for current drive signal to be converted into optical signal.
In an embodiment of the embodiment of the present invention, electro-optic conversion channel described in each road can also include: clock number
According to recovery unit, it is connected with the input terminal of laser drive unit, there is bypass effect, for the telecommunications to set rate
Number carry out clock recovery.
Optionally, laser includes at least one of: Distributed Feedback Laser, EML laser.
Equipment where optical transceiver module can any equipment in passive optical network, as long as carrying out the reception of optical signal
And it sends.The equipment may include upper layer software (applications) system, and upper layer software (applications) system can send mentioned order, control to controller
Device processed responds the order and configures to the running parameter of photoelectric conversion unit.
As an example, above-mentioned configuration can be controller writing commands word in a register, photoelectric conversion unit
When carrying out photoelectric conversion, the command word is read from register, so that the running parameter of photoelectric conversion unit is obtained, certainly,
The embodiment of the present invention is not limited to this.
It is described below with optical transceiver module of several examples to the embodiment of the present invention.
As an example, in embodiments of the present invention, the configuration to optical transceiver module is realized by software mode.Cause
This is known as software definition optical transceiver module using the optical transceiver module page that software realization configures in embodiments of the present invention.
Software definition optical transceiver module may include: electrooptic switching element, photoelectric conversion unit, microcontroller, light multiplexing
Device and electrical interface.Optical transceiver module can work in PtP or PtMP operating mode by software configuration.
Wherein, electrooptic switching element is converted to optical signal for realizing optical transceiver module electric signal, and can receive microcontroller
It is different rates that device, which does software configuration to electrooptic switching element,.Electrooptic switching element may include that one or more electro-optic conversion is logical
Road.The used laser in one or more channel of electrooptic switching element is including but not limited to directly modulation laser, external modulation
Laser.
Photoelectric conversion unit is converted to electric signal for realizing optical transceiver module optical signal, and passes through microcontroller software
Definition is set as different rates continuous mode and burst mode.Photoelectric conversion unit may include that one or more photoelectric conversion is logical
Road, the photodetector that one or more channel of photoelectric conversion unit uses including but not limited to PIN type photodetector and
Avalanche-type APD photodetector.
Microcontroller is soft for carrying out with the communication of system end upper layer software (applications) and to electrooptic switching element, photoelectric conversion unit
Part definition, may be configured as point-to-point WDM PON or TWMD PON point-to-multipoint operating mode, different operating rate may also set up
Optical transceiver module service aisle quantity.
Optical multiplexer, the multiplex of the downlink optical signal for exporting the uplink optical signal received and photoelectric conversion unit
With partial wave and provide optical interface, realize that optical transceiver module is connect with business optical fiber.
In embodiments of the present invention, by software definition, point-to-multipoint burst upstream reception pattern and point-to-point company are realized
Continuous operating mode switching；It realizes operating rate setting, realize the setting of service aisle number.Different works are configured by same port module
Operation mode meets different user business, equipment manufacturing cost and development cost is effectively reduced.Pass through software definition operating rate, point pair
Multiple spot and point to point operation mode, the compatible design that service aisle quantity is arranged, are effectively reduced the system upgrade O&M of operator
Cost.
As shown in Fig. 2, by software definition, optical transceiver module can be flexibly applied to system architecture as shown in fig. 2.By soft
Part definition configurable TWDM PON or PtP WDM PON framework at different rates.
Fig. 3 is a kind of structural block diagram of optical transceiver module according to an embodiment of the present invention, as shown in figure 3, comprising all the way or
Multichannel electrooptic switching element, photoelectric conversion unit, microcontroller, optical multiplexer and electrical interface.
Electrooptic switching element is converted to optical signal for realizing optical transceiver module electric signal, and can receive microcontroller pair
It is different rates that electrooptic switching element, which does software configuration,.Electrooptic switching element may include one or more electro-optic conversion channel.Electricity
The used laser in one or more channel of optical conversion element is including but not limited to directly modulation laser, external modulation laser
Device.
Photoelectric conversion unit is converted to electric signal for realizing optical transceiver module optical signal, and flexible by microcontroller
It is configured to different rates continuous mode and burst mode.Photoelectric conversion unit may include one or more electro-optic conversion channel, electricity
The photodetector that one or more channel of optical conversion element uses is including but not limited to PIN type photodetector and avalanche-type
Photodetector.
Microcontroller, for carrying out spirit with the communication of system end upper layer software (applications) and to electrooptic switching element, photoelectric conversion unit
Configuration living, can be configured to point-to-point WDM PON and TWDM PON point-to-multipoint operating mode, can be configured to different operating rate,
It can also be configured optical transceiver module service aisle quantity.
Optical multiplexer, the multiplex of the downlink optical signal for exporting the uplink optical signal received and photoelectric conversion unit
With partial wave and provide optical interface, realize that optical transceiver module is connect with business optical fiber.
Fig. 4 is the structural block diagram of single channel optical transceiver module according to an embodiment of the present invention.Below to list as shown in Figure 4
Channel optical transceiver module is described.
The microcontroller of single channel optical transceiver module is receiving system software definition command, joins to optical transceiver module
Number configuration.Including setting operating rate and operating mode, operating mode includes receiving end continuous operation mode or burst work
Mode.And uplink 10Gbps rate is supported to carry out burst EDC electrical dispersion compensation.
Electrooptic switching element realizes that electric signal is converted to optical signal function after completing microcontroller software order.When 10G
Clock data recovery function block has signal bypass functionality, receives system end by electrical interface electric signal, judge rate whether be
10Gbps, then signal is exported again to 10G laser drive unit service signal shaping by clock and data recovery function in this way.Such as
Non- 10Gbps signal rate, then electric signal Bypass Clock data recovery unit, directly send electric signal to laser drive unit.
10Gbps laser drive unit receives the electric signal of clock data recovery unit and is converted into electric current driving letter
Number, it realizes and 10G EML laser diode current is driven.Driving unit selectively operating is in 0-10Gbps wideband mode any operative speed
Rate.
10G EML laser, which is realized, is converted to optical signal for the current drive signal of laser drive unit, preferably due to this
Embodiment is EML laser built-in thermoelectric refrigeration control chip (TEC), makes laser works in specific temperature and keeps wavelength steady
Fixed degree.
TEC control unit provides electric current driving and control feedback unit for TEC chip built in EML laser element, guarantees
TEC temperature is stablized, and guarantees that laser wavelength is stablized indirectly.
Optical interface, for providing the optical signal interface channel of optical transceiver module and optical fiber.This preferred embodiment uses single fiber
Two-way SC optical interface.
WDM realizes the multiplex and partial wave of uplink optical signal and downlink optical signal, couples light for downlink laser firing signals
Interface, at the same by uplink receiving to optical signal export to photoelectric conversion unit.
Photoelectric conversion unit realizes that uplink optical signal is converted into electric signal, and electric signal is sent to electricity according to software definition
Interface.Photoelectric conversion unit includes photodetector, 0-10G burst TIA, RESET leadage circuit, burst EDC, 1:2 data fan
Unit out, 0-10G continuous mode limiting amplifier (CM LA) and 2.5G/10G burst mode limiting amplifier (BM LA).
The uplink optical signal received is converted photoelectric current by photodetector, this single channel optical transceiver module is preferably implemented
Example can support 0-10Gbps any operative using the avalanche photodide (APD type photodetector) for being greater than 8.5GHz bandwidth
Rate can also work in continuous and burst mode.
0-10G happens suddenly trans-impedance amplifier (BM TIA), for receiving the photo-signal conversion of photodetector output
It is exported at differential voltage signal, burst trans-impedance amplifier adjusts the voltage signal model after photoelectric current conversion by selection transimpedance gain
It encloses, meets next stage signal processing unit input requirements, selection 0-10G burst trans-impedance amplifier in this preferred embodiment
GN7052 can work in burst mode, can also work in continuous mode, microcontroller can control trans-impedance amplifier rate to select function
Can, it can be configured to low rate bandwidth mode and high-speed bandwidth mode.
RESET leadage circuit, optical transceiver module are such as configured as TWDM PON operating mode, and photoelectric conversion unit is received
It is burst signal, RESET leadage circuit receives the notification signal of next group of bursty data arrival, and (RESET controls signal, has and is
System plate is inputted by optical transceiver module electrical interface), after RESET leadage circuit receives the control signal, the limit of cleaning burst in time
The residual signal level of width amplifier in, to ensure the accurate reception of next group of bursty data.Meet system burst timing
It is required that.The RESET burst leadage circuit of this preferred embodiment uses High Frequency Analog Switch, and simulation is opened upon the reception of control signals
It closes TIA output bypass to reference level, quickly handles residual signal, it is ensured that the accurate reception of next group of bursty data.
It happens suddenly electrical dispersion compensation unit (EDC), realizes that the differential voltage signal of TIA output does electrical dispersion compensation, due to straight
Connecing modulation laser just has chirp, dispersion is generated after high speed long-haul transport, the burst electricity color in the embodiment of the present invention
Compensating unit is dissipated, dispersion compensation can be carried out to uplink 10Gbps signal, improve the receiving sensitivity performance of optical transceiver module, flexibly
It is configured to different operating rate.
The EDC that happens suddenly has signal bypass functionality, and directly (less than 10G), dispersion is smaller at low velocity for modulation laser, light
Transceiver module is configured to low rate operating mode, then the EDC unit that happens suddenly carries out bypass processing to signal, after only carrying out signal shaping
Output
1:2 data fan out unit, realization is converted into 2 road differential signal parallel outputs to 1 road differential input signal, wherein one
Road output realizes point-to-point PtP electric signal connection for connecting the continuous limiting amplifier of 0-10G (CM LA)；In addition it exports all the way
It happens suddenly limiting amplifier (BM LA) for connecting, realization is connect with TWDM PON point-to-multipoint PtMP electric signal.
The continuous limiting amplifier of 0-10G (CM LA), can support 0-10G operating rate, receive signal to point-to-point PtP and do
Amplitude limiting processing is exported to the electrical interface of optical transceiver module, and passes through electrical interface and system board.
It happens suddenly limiting amplifier (BM LA), realizes that TWDM PON point-to-multipoint PtMP operating mode burst upstream receives letter
Number processing, such as 2.5G uplink signal and 10G uplink signal are time division multiplexing (TDM) under this operating mode, different
It can receive 2.5G and 10G signal in time slot, and limited range enlargement processing done to signal and is exported to optical transceiver module electrical interface, and is passed through
Electrical interface connects system board, isolates 2.5G and 10G operating rate signal to different time-gap by system board.
Electric connector realizes that optical transceiver module is connect with system board electrical signal.
Fig. 5 is the structural block diagram of another single channel optical transceiver module according to embodiments of the present invention.Below to as shown in Figure 5
Single channel optical transceiver module is described.
As shown in Figure 5, comprising: microcontroller, optical interface, wavelength division multiplexer, electrical interface and multi tate electro-optic conversion list
Member and multi tate photoelectric conversion unit.
Single channel optical transceiver module microcontroller is receiving system configuration command, to electrooptic switching element, photoelectric conversion
Unit configuration work rate.
Electrooptic switching element completes microcontroller with postponing, and realizes that electric signal is converted to optical signal function.Electro-optic conversion
Unit includes clock data recovery unit, multi tate laser drive unit, multi tate laser.
10G clock and data recovery functional block has signal bypass functionality, receives system end and passes through electrical interface electric signal, judgement
Whether rate is for 10Gbps, and then signal exports again to 10G service signal shaping by clock and data recovery function and swashs in this way
Optical drive unit.Such as non-10Gbps signal rate, then electric signal Bypass Clock data recovery unit, directly send electric signal at most
Rate laser driving unit.
Multi tate (0-10Gbps) laser drive unit receives the electric signal of clock data recovery unit and is converted into
Current drive signal is realized and is driven to multi tate laser (0-10Gbps) laser.Output optical signal.Laser drive unit can
Function is arranged in configured bandwidth, declines low bandwidth chahnel in low signal rate, filters out high-frequency noise, optimize optical transceiver module optical signal
Quality.
Multi tate (0-10Gbps) laser, which is realized, is converted to optical signal for the current drive signal of laser drive unit.
Optical interface, for providing the optical signal interface channel of optical transceiver module and optical fiber.This preferred embodiment uses single fiber
Two-way SC optical interface.
Wavelength division multiplexer realizes the multiplex and partial wave of uplink optical signal and downlink optical signal, by downlink laser firing signals
Be coupled to optical interface, at the same by uplink receiving to optical signal export to photoelectric conversion unit.
Photoelectric conversion unit realizes that uplink optical signal is converted into electric signal, and electric signal is sent to electricity according to software configuration
Interface.Photoelectric conversion unit includes multi tate photodetector, multi tate trans-impedance amplifier and multi tate limiting amplifier.
The uplink optical signal received is converted photoelectric current, this preferred implementation by multi tate (0-10Gbps) photodetector
Example uses 10Gbps avalanche photodide (APD type photodetector), can support 0-10Gbps operating rate.
Multi tate (0-10Gbps) trans-impedance amplifier will receive photodetector output light current signal and be converted to difference
Voltage signal output, trans-impedance amplifier adjusts the voltage signal range after photoelectric current conversion by selection transimpedance gain, under satisfaction
One stage signal processing unit input requirements, trans-impedance amplifier can work any rate between 0-10Gbps.This preferred implementation
Selection trans-impedance amplifier can be configured to low rate bandwidth mode and high-speed bandwidth mode in example, and different software definitions is believed
Number operating rate, selects optimal receiving sensitivity.
Multi tate (0-10Gbps) limiting amplifier, to received trans-impedance amplifier processing analog differential voltage signal,
It does limited range enlargement processing output digital difference signal and send to optical transceiver module electrical interface, and system board is connected by electrical interface.
Electrical interface realizes that optical transceiver module is connect with system board electrical signal.
Fig. 6 is the structural block diagram of four-way optical transceiver module according to embodiments of the present invention, as shown in fig. 6, including four Lu Guang
Electric converting unit, four road electrooptic switching elements, WDM, microcontroller and electric connector.
Four-way optical transceiver module can be by software configuration flexible choice all the way or two to four road electro-optic conversions and photoelectricity turn
Change channel.Point-to-point PtP or point-to-multipoint PtMP operating mode, configuration work speed can be separately configured to every road converting unit simultaneously
Rate.
Four-way electrooptic switching element completes micro controller unit with postponing, and realizes that the road N (N belongs to 1-4) electric signal turns
It is changed to optical signal function.Include four tunnel laser drive units and No. four lasers.
Laser Driven drives laser, makes laser output light signal, and make laser works in specific temperature
And keep wavelength stability.Laser can choose different output wavelengths.It is multiple that WDM carries out wavelength-division to laser output light signal
With the output multiplexed optical signal of wavelength-division.
Electrooptic switching element, which can be used, directly to be modulated laser, externally modulated laser can also be used.
Four-way photoelectric conversion unit realizes that four road optical signals are converted into electric signal, can be configured to all the way by software flexible
Or two to four paths work.Include No. four photodetectors, four road trans-impedance amplifiers, four road electrical dispersion compensation units and four
Road limiting amplifier.
Photodetector will will be received in the optical signal for receiving the road optical multiplex unit N (N belongs to 1-4) different wave length
Photo-signal is converted to the road N optical signal, photodetector can be used PIN type photodetector, avalanche-type can be used
(APD) type photodetector, and support 0-10Gbps operating rate.
Four road trans-impedance amplifiers, the photo-signal for receiving No. four photodetectors output are converted to differential voltage
Signal exports, and four-way trans-impedance amplifier selectively operating can also work in point-to-multipoint burst mode in this preferred embodiment
In continuous point-to-point PtP mode, micro controller unit can configure trans-impedance amplifier rate, can be configured to low rate bandwidth
Mode and high-speed bandwidth mode.
Four road EDC electrical dispersion compensation units realize that the differential voltage signal of trans-impedance amplifier (TIA) output does electric dispersion and mends
It repays, just has chirp due to directly modulating laser, dispersion, the design of this preferred embodiment are generated after high speed long-haul transport
Increase EDC electrical dispersion compensation unit, dispersion compensation can be carried out to low cost directly modulation uplink optical signal, improve optical transceiver module
Receiving sensitivity performance, while flexibly configurable be different operating rate.
Four tunnels burst EDC electrical dispersion compensation unit has signal bypass functionality, if the signal chromatic dispersion received is smaller,
Optical transceiver module can be configured to bypass operating mode, and trans-impedance amplifier signal is directly output to limiting amplifier unit.
Four road limiting amplifiers can be point-to-point PtP operating mode and point-to-multipoint burst Working mould by software configuration
Formula is done amplitude limiting processing to four road electric signals, is exported to the electrical interface of optical transceiver module, and connect by electrical interface with system board.
WDM realizes the multiplex and partial wave of four road traveling optical signals and four road downlink optical signals, by four road different wave length downlinks
The coupling of optical signal signal is exported to optical interface, while the uplink optical signal partial wave of four road different wave lengths being exported to photoelectric conversion list
Member.
Electric connector realizes that optical transceiver module is connect with system board electrical signal.
In embodiments of the present invention, single channel supports point-to-point PtP and point-to-multipoint PtMP operating mode compatibility of multi-rate
The optical transceiver module of optical transceiver module and four-way flexible configuration number of channels can realize that point-to-multipoint connects by software definition
Continuous operating mode and the switching of point-to-multipoint burst mode of operation；The switching of different operating rate and the configuration of service aisle number.Pass through
Same port module configures different working condition, meets different user business, equipment manufacturing cost and development cost is effectively reduced.
The embodiment of the invention also provides a kind of configuration methods of optical module running parameter.
Fig. 7 is the flow chart of the configuration method of optical module running parameter according to an embodiment of the present invention, as shown in fig. 7, should
Method includes step S702 to step S704.
Step S702, the order of equipment where receiving optical transceiver module, wherein running parameter is carried in mentioned order
Information.
Step S704 configures the running parameter of above-mentioned optical transceiver module according to mentioned order.
Equipment where optical transceiver module can be any equipment in passive optical network, as long as carrying out the processing of optical signal
?.The equipment may include upper layer software (applications) system, and upper layer software (applications) system can send mentioned order to controller, and controller is rung
It should order and the running parameter of optical module is configured.
As an example, above-mentioned configuration can be controller writing commands word in a register, and optical transceiver module exists
When carrying out photoelectric conversion, the command word is read from register, to obtain the running parameter of optical transceiver module, certainly, this hair
It is bright that embodiment is not limited to this.
Optionally, above-mentioned running parameter includes at least one of: the work in the above-mentioned each photoelectric conversion channel of optical module
Photoelectric conversion channel used in the operating mode in each photoelectric conversion channel of rate, above-mentioned optical module, photoelectric conversion, photoelectricity turn
The quantity in photoelectric conversion channel used in changing.
As an example, operating mode may include point-to-multipoint burst mode and point-to-point continuous mode.It is used
Photoelectric conversion channel can be in multiple photoelectric conversion channels which or which above-mentioned photoelectric conversion channel in position, photoelectric conversion
The quantity in channel can be carry out photoelectric conversion using how many a photoelectric conversion channels.
Optionally, above-mentioned running parameter includes at least one of: the work in the above-mentioned each electro-optic conversion channel of optical module
Electro-optic conversion channel used in the operating mode in each electro-optic conversion channel of rate, above-mentioned optical module, electro-optic conversion, electric light turn
The quantity in electro-optic conversion channel used in changing.
As an example, operating mode may include point-to-multipoint burst mode and point-to-point continuous mode.It is used
Electro-optic conversion channel can be in multiple electro-optic conversion channels which or which above-mentioned electro-optic conversion channel in position, electro-optic conversion
The quantity in channel can be carry out electro-optic conversion using how many a electro-optic conversion channels.
The embodiment of the invention also provides a kind of configuration devices of optical module running parameter.
Fig. 8 is the structural block diagram of the configuration device of optical transceiver module running parameter according to an embodiment of the present invention, such as Fig. 8 institute
Show, the apparatus may include: receiving module 802, for receiving the order of optical transceiver module place equipment, wherein mentioned order
In carry the information of running parameter；Configuration module 804, the work for configuring above-mentioned optical transceiver module according to mentioned order are joined
Number.
Equipment where optical transceiver module can be any equipment in passive optical network, as long as carrying out the processing of optical signal
?.The equipment may include upper layer software (applications) system, and upper layer software (applications) system can send mentioned order to controller, and controller is rung
It should order and the running parameter of optical module is configured.
As an example, above-mentioned configuration can be controller writing commands word in a register, and optical transceiver module exists
When carrying out photoelectric conversion, the command word is read from register, to obtain the running parameter of optical transceiver module, certainly, this hair
It is bright that embodiment is not limited to this.
Optionally, above-mentioned running parameter includes at least one of: the above-mentioned each photoelectric conversion channel of optical transceiver module
Photoelectric conversion channel, light used in the operating mode in each photoelectric conversion channel of operating rate, above-mentioned optical module, photoelectric conversion
Electricity converts the quantity in used photoelectric conversion channel.
As an example, operating mode may include point-to-multipoint burst mode and point-to-point continuous mode.It is used
Photoelectric conversion channel can be in multiple photoelectric conversion channels which or which above-mentioned photoelectric conversion channel in position, photoelectric conversion
The quantity in channel can be carry out photoelectric conversion using how many a photoelectric conversion channels.
Optionally, above-mentioned running parameter includes at least one of: the work in the above-mentioned each electro-optic conversion channel of optical module
Electro-optic conversion channel used in the operating mode in each electro-optic conversion channel of rate, above-mentioned optical module, electro-optic conversion, electric light turn
The quantity in electro-optic conversion channel used in changing.
As an example, operating mode may include point-to-multipoint burst mode and point-to-point continuous mode.It is used
Electro-optic conversion channel can be in multiple electro-optic conversion channels which or which above-mentioned electro-optic conversion channel in position, electro-optic conversion
The quantity in channel can be carry out electro-optic conversion using how many a electro-optic conversion channels.
It can be seen from the above description that the embodiment of the present invention realizes following technical effect: controller configures optical mode
The running parameter of block allows optical module to be compatible with different scenes.In addition, list can also be avoided in the case where multichannel
Caused physical port excessive problem when channel optical module stacks.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of optical transceiver module characterized by comprising controller, including at least all the way the photoelectricity in photoelectric conversion channel turn
Change unit and including at least electrooptic switching element in electro-optic conversion channel all the way, wherein
The controller is connected with the photoelectric conversion unit and the electrooptic switching element, turns for configuring the photoelectricity
Change the running parameter of unit and the electrooptic switching element；The running parameter includes: operating rate, number of channels and Working mould
Formula, wherein the operating mode includes continuous mode and burst mode；
The photoelectricity, which changes, turns unit, for carrying out photoelectric conversion according to the running parameter；
The electrooptic switching element, for carrying out electro-optic conversion according to the running parameter；
Each photoelectric conversion channel, comprising:
Photodetector, for converting optical signals to photoelectric current；
Trans-impedance amplifier is connected with the photodetector and the controller, can work in the continuous mode or described prominent
Hair mode, for the photoelectric current to be converted into voltage signal according to the running parameter；
Limiting amplifier is connected with the trans-impedance amplifier, can work in the continuous mode or the burst mode, for pair
The voltage signal carries out limited range enlargement processing.
2. optical transceiver module according to claim 1, which is characterized in that the controller, for responding the light transmitting-receiving
The order of equipment, configures the running parameter, wherein the information of the running parameter is carried in the order where module.
3. optical transceiver module according to claim 1, which is characterized in that
Each photoelectric conversion channel, further includes: electrical dispersion compensation unit is put positioned at the trans-impedance amplifier and the clipping
Between big device, it can work in the continuous mode or the burst mode, for carrying out electrical dispersion compensation to the voltage signal；
The limiting amplifier is also used to carry out limited range enlargement processing to the voltage signal after electrical dispersion compensation.
4. optical transceiver module according to claim 1 or 3, which is characterized in that
Each photoelectric conversion channel, further includes: data fan out unit is located at the trans-impedance amplifier and the limited range enlargement
Between device, for the voltage signal to be split into first via signal and second road signal, wherein the first via signal is point
To the voltage signal of multiple spot burst mode, the second road signal is the voltage signal of point-to-point continuous mode；
The limiting amplifier is connected with the data fan out unit, for carrying out limited range enlargement to the first via signal
Processing.
5. optical transceiver module according to claim 1, which is characterized in that electro-optic conversion channel described in each road, comprising:
Laser drive unit is connected with the controller, drives for converting the electrical signal to electric current according to the running parameter
Dynamic signal；
Laser is connected with the laser drive unit, for the current drive signal to be converted into optical signal.
6. optical transceiver module according to claim 5, which is characterized in that electro-optic conversion channel described in each road, further includes:
Clock data recovery unit is connected with the input terminal of the laser drive unit, has bypass effect, for predetermined
The electric signal of rate carries out clock recovery.
7. optical transceiver module according to claim 5, which is characterized in that the laser includes at least one of: point
Cloth feeds back Distributed Feedback Laser, Electroabsorption Modulated Laser EML.
8. a kind of configuration method of optical transceiver module running parameter characterized by comprising
The order of equipment where receiving optical transceiver module, wherein the information of running parameter, the work are carried in the order
Parameter includes: operating rate, number of channels and operating mode, wherein the operating mode includes continuous mode and burst mode；
The running parameter of the optical transceiver module is configured according to the order.
9. a kind of configuration device of optical transceiver module running parameter characterized by comprising
Receiving module, the order for equipment where receiving optical transceiver module, wherein carry running parameter in the order
Information, the running parameter include: operating rate, number of channels and operating mode, wherein the operating mode includes the progressive die
Formula and burst mode；
Configuration module, for configuring the running parameter of the optical transceiver module according to the order.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410318615.9A CN105323008B (en) | 2014-07-04 | 2014-07-04 | The configuration method and device of optical transceiver module and its running parameter |
| PCT/CN2014/087126 WO2015154389A1 (en) | 2014-07-04 | 2014-09-22 | Optical transceiving module and configuration method and device for operating parameter thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410318615.9A CN105323008B (en) | 2014-07-04 | 2014-07-04 | The configuration method and device of optical transceiver module and its running parameter |
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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 |
| CN106961308B (en) * | 2017-03-14 | 2023-09-12 | 武汉汉源光通信技术有限公司 | Optical transceiver unit, optical module, optical communication system and related parameter control method |
| CN107707468B (en) * | 2017-09-19 | 2021-05-07 | 新华三技术有限公司 | Link state maintenance method and device |
| CN108833869B (en) * | 2018-07-27 | 2020-07-21 | 浙江传媒学院 | Switchable burst light emitting circuit for uplink channel of cable television network |
| CN109889272B (en) * | 2019-02-18 | 2022-02-15 | 东莞铭普光磁股份有限公司 | Optical module and method and system for automatically compatible low rate thereof |
| CN110069289A (en) * | 2019-04-23 | 2019-07-30 | 深圳市友华通信技术有限公司 | Data-storing method based on Ethernet passive optical network equipment |
| CN110121122B (en) * | 2019-05-10 | 2022-04-19 | 南京牛芯微电子有限公司 | Optical module control method and system |
| CN110149149B (en) * | 2019-05-14 | 2024-04-30 | 北京小鸟科技股份有限公司 | Communication module for KVM switch device, KVM switch device and system |
| CN110348116B (en) * | 2019-07-09 | 2022-12-20 | 北京艾达方武器装备技术研究所 | Process manufacturing method of circuit module |
| CN112968732B (en) * | 2019-12-13 | 2022-07-29 | 海思光电子有限公司 | Photoelectric signal converter and network interaction equipment |
| CN112763784B (en) * | 2020-12-20 | 2022-05-20 | 复旦大学 | Current detection device and method |
| CN113726432B (en) * | 2021-08-30 | 2023-04-14 | 桂林电子科技大学 | Software definable visible light adaptive modulation and demodulation device and method |
| CN114389693B (en) * | 2021-12-01 | 2023-12-22 | 武汉华中天经通视科技有限公司 | Spatial optical communication signal processing device and method |
| CN114374134B (en) * | 2022-01-28 | 2024-04-02 | 北京科技大学顺德研究生院 | 16-frequency multiplication non-phase-locking dual-laser source multiband frequency stabilization signal generating device |
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| CN101405971A (en) * | 2006-03-31 | 2009-04-08 | 古河电气工业株式会社 | Optical transmission system and optical repeater |
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