CN104467973B - A kind of transtation mission circuit, receiving circuit, fiber optical transceiver and its signal processing method - Google Patents
A kind of transtation mission circuit, receiving circuit, fiber optical transceiver and its signal processing method Download PDFInfo
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- CN104467973B CN104467973B CN201410583636.3A CN201410583636A CN104467973B CN 104467973 B CN104467973 B CN 104467973B CN 201410583636 A CN201410583636 A CN 201410583636A CN 104467973 B CN104467973 B CN 104467973B
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Abstract
The invention discloses a kind of transtation mission circuit, receiving circuit, fiber optical transceiver and its signal processing method, its main technical point is：Transtation mission circuit has two kinds of signal modulation modes, high speed signal and low speed signal can be modulated respectively, the signal of height different transmission rates scope can be handled it, receiving circuit can equally be responded to the signal of height different transmission rates scope, and fiber optical transceiver includes above-mentioned transtation mission circuit, receiving circuit and microprocessor.The invention enables handled it and responded for the signal of height different transmission rates scope using the fiber optical transceiver of the present invention program, the signal rate scope that can be supported is 155M between 10G, the signal of even more high speed, improves the flexibility of fiber optical transceiver application.
Description
Technical field
The present invention relates to optical communication field, more particularly to a kind of transtation mission circuit, receiving circuit, fiber optical transceiver and its signal
Processing method.
Background technology
Fiber optical transceiver is the converting unit that a kind of electric signal and optical signal are interchangeable, and is also referred to as in many places
Optical-electrical converter.Product is typically employed in the real network ring that cable can not cover, optical fiber must be used to extend transmission distance
In border.
Laser in traditional fiber optical transceiver only has a kind of modulation system, i.e., only a kind of signal modulation mode, place
Reason and the signal rate scope relative narrower of response, it is impossible to while in response to signal at a high speed with low speed transmissions speed, optical fiber is received
Send out device application flexibility poor.
The content of the invention
It is an object of the invention to overcome in the presence of prior art above-mentioned not enough there is provided a kind of transtation mission circuit, reception
Circuit, fiber optical transceiver and its signal processing method, it supports that the signal of different transmission rates scope is handled it and responded,
The signal rate scope of support is bigger, and application flexibility is strong.
In order to realize foregoing invention purpose, the technical solution adopted by the present invention is：A kind of transtation mission circuit of fiber optical transceiver,
Including laser, in addition to：FPGA signal transmitting and receiving modules, for receiving and identifying at least one input signal, if it is described at least
One input signal is high speed signal, then at least one described input signal is output into first laser device driver；If described
At least one input signal is low speed signal, then at least one described input signal is output into second laser driver；
The first laser device driver, AC modulation is converted into at least one input signal described in receiving
Signal simultaneously drives the laser laser is exported optical signal using the AC modulated signals as offset signal；
The second laser driver, HVDC Modulation is converted into at least one input signal described in receiving
Signal simultaneously drives the laser laser is exported optical signal using the HVDC Modulation signal as offset signal.
It is preferred that, at least one described input signal is differential input signal.
It is preferred that, the high speed signal is that transmission rate is 6G to 10G signals.
It is preferred that, the low speed signal is that transmission rate is 155M to 4.25G signals.
The present invention also provides a kind of receiving circuit of fiber optical transceiver, including light-receiving component ROSA, for by reception
Optical signal is converted into corresponding electric signal and exported, in addition to the FPGA signal identification modules being connected with the ROSA, described
FPGA signal identifications mould connects FPGA switch modules and FPGA signal transmitting and receiving modules；FPGA switch modules and the FPGA letter
The first limiting amplifier and the second limiting amplifier are connected between number transceiver module；
Wherein, the FPGA signal identifications module, the electric signal for recognizing the ROSA outputs, if the electric signal is
High speed signal, then export the first control signal to the FPGA signal transmitting and receivings module and the FPGA switch modules, if the electricity
Signal is low speed signal, then exports the second control signal to the FPGA signal transmitting and receivings module and the FPGA switch modules；Institute
State FPGA signal transmitting and receivings module and the FPGA switch modules and receive first control signal or the second control letter
Number when, while responsive operation formation signal output channels：The high speed signal is output to the first limit by the FPGA switch modules
Width amplifier, is exported after being handled via first limiting amplifier by the FPGA signal transmitting and receivings module；Or, the FPGA
The low speed signal is output to the second limiting amplifier by switch module, and institute is passed through after being handled via second limiting amplifier
State the output of FPGA signal transmitting and receivings module.
It is preferred that, the high speed signal is that transmission rate is 6G to 10G signals.
It is preferred that, the low speed signal is that transmission rate is 155M to 4.25G signals.
It is preferred that, the signal of the FPGA signal transmitting and receivings module output is differential output signal.
The present invention also provides a kind of fiber optical transceiver, including transtation mission circuit and receiving circuit, and the transtation mission circuit includes swashing
Light device, in addition to：FPGA signal transmitting and receiving modules, for receiving and identifying at least one input signal, if described, at least one is defeated
Enter signal for high speed signal, then at least one described input signal is output to first laser device driver；If described at least one
Individual input signal is low speed signal, then at least one described input signal is output into second laser driver；Described first
Laser driver, AC modulated signals are converted into and by the exchange at least one input signal described in receiving
Modulated signal drives the laser laser is exported optical signal as offset signal；The second laser driving
Device, is converted into HVDC Modulation signal at least one input signal described in receiving and makees the HVDC Modulation signal
The laser is driven to make the laser output optical signal for offset signal；The receiving circuit includes：Light-receiving component
ROSA, for the optical signal of reception to be converted into corresponding electric signal and exported；Also include the FPGA letters being connected with the ROSA
Number identification module, the FPGA signal identifications module connection FPGA switch modules and the FPGA signal transmitting and receivings module；It is described
The first limiting amplifier and the second limiting amplifier are connected between FPGA switch modules and the FPGA signal transmitting and receivings module；Its
In, the FPGA signal identifications module, the electric signal for recognizing the ROSA outputs, if the electric signal is high speed signal,
The first control signal is then exported to the FPGA signal transmitting and receivings module and the FPGA switch modules, if the electric signal is low speed
Signal, then export the second control signal to the FPGA signal transmitting and receivings module and the FPGA switch modules；The FPGA signals
Transceiver module and the FPGA switch modules are when receiving first control signal or second control signal, while work
Form signal output channels：The high speed signal is output to first limiting amplifier by the FPGA switch modules, warp
Exported after first limiting amplifier processing by the FPGA signal transmitting and receivings module；Or, the FPGA switch modules
The low speed signal is output to second limiting amplifier, by described after being handled via second limiting amplifier
FPGA signal transmitting and receivings module is exported；Also include microprocessor, for controlling there was only the driving of first laser device within the same period
Device and the work of the first limiting amplifier, or, only second laser driver and the second limiting amplifier work.
It is preferred that, the FPGA switch modules, FPGA signal identifications module and FPGA signal transmitting and receiving modules are integrated in same
In individual fpga chip.
The embodiment of the present invention also provides a kind of signal modulating method of fiber optical transceiver, including：Receive and identify at least one
Individual input signal, if at least one described input signal is high speed signal, the is output to by least one described input signal
One laser driver；, will at least one input signal output if at least one described input signal is low speed signal
To second laser driver；The first laser device driver will receive described at least one input signal conversion strike a bargain
Stream modulated signal simultaneously makes the laser export optical signal using the AC modulated signals as offset signal driving laser；Institute
State second laser driver will receive described at least one input signal be converted into HVDC Modulation signal and will be described straight
Stream modulated signal makes the laser export optical signal as offset signal driving laser.
It is preferred that, at least one described input signal is differential input signal.
It is preferred that, the high speed signal is that transmission rate is 6G to 10G signals.
It is preferred that, the low speed signal is that transmission rate is 155M to 4.25G signals.
The embodiment of the present invention also provides a kind of signal processing method of fiber optical transceiver, and this method is applied to above-described embodiment
Receiving circuit, including：
The FPGA signal identifications module recognizes the electric signal of the ROSA outputs, if the electric signal is high speed signal,
The first control signal is then exported to the FPGA signal transmitting and receivings module and the FPGA switch modules, if the electric signal is low speed
Signal, then export the second control signal to the FPGA signal transmitting and receivings module and the FPGA switch modules；
The FPGA signal transmitting and receivings module and the FPGA switch modules are receiving first control signal or described
During the second control signal, while responsive operation formation signal output channels：The FPGA switch modules are defeated by the high speed signal
Go out to the first limiting amplifier, exported after being handled via first limiting amplifier by the FPGA signal transmitting and receivings module；
Or, the low speed signal is output to the second limiting amplifier by the FPGA switch modules, via second limiting amplifier
Exported after processing by the FPGA signal transmitting and receivings module.
Compared with prior art, beneficial effects of the present invention：Transtation mission circuit of the present invention has two kinds of signal modulation modes,
High speed signal and low speed signal can be modulated respectively, the signal of height different transmission rates scope can be handled it, and receive electricity
Road can equally be responded to the signal of height different transmission rates scope so that using the transtation mission circuit and the light of receiving circuit
Fine transceiver is handled it and responded for the signal of height different transmission rates scope, it would be preferable to support signal rate scope be
155M is between 10G, and the signal of even more high speed improves the flexibility of fiber optical transceiver application.
Brief description of the drawings：
Fig. 1 is the transtation mission circuit schematic diagram in the embodiment of the present invention；
Fig. 2 is the receiving circuit schematic diagram in the embodiment of the present invention；
Fig. 3 is the fiber optical transceiver schematic diagram in the embodiment of the present invention.
Embodiment
With reference to embodiment, the present invention is described in further detail.But this should not be interpreted as to the present invention
The scope of above-mentioned theme is only limitted to following embodiment, all models that the present invention is belonged to based on the technology that present invention is realized
Enclose.
Fig. 1 is the transtation mission circuit schematic diagram of fiber optical transceiver provided in an embodiment of the present invention, including laser, in addition to
FPGA signal transmitting and receiving modules, for receiving and identifying at least one input signal, if at least one described input signal is at a high speed
Signal, then be output to first laser device driver by least one described input signal；If at least one described input signal is
Low speed signal, then be output to second laser driver by least one described input signal.
It is preferred that, at least one described input signal is differential input signal, and the high speed signal is that transmission rate is 6G
To 10G signals, the low speed signal is that transmission rate is 155M to 4.25G signals.The laser can be arbitrary laser
Device, such as Distributed Feedback Laser, LD lasers etc., this is not limited by the present invention.FPGA signal transmitting and receivings module is by FPGA cores in the present invention
Piece is constituted, the differential input signal inputted using the high-speed sampling function collection identification of fpga chip from external host, to defeated
It is that high speed signal or low speed signal are identified and exported respectively to enter signal, is easy to subsequent treatment.
The first laser device driver, AC modulation is converted into at least one input signal described in receiving
Signal simultaneously drives the laser laser is exported optical signal using the AC modulated signals as offset signal.
The second laser driver, HVDC Modulation is converted into at least one input signal described in receiving
Signal simultaneously drives the laser laser is exported optical signal using the HVDC Modulation signal as offset signal.
Using two kinds of laser modulation modes in the embodiment of the present invention, that is, exchange AC modulation systems and direct current DC modulation methods
Formula, exchange AC modulation systems carry out AC coupled processing, and direct current DC modulation systems can increase direct current on laser bias circuit
Coupling unit carries out dc-couple processing, and the purpose for setting two kinds of modulation systems is for the signal to different transmission rates scope
Handle it, one kind is used for igh-speed wire-rod production line, another to be used for the transmission signal of slow speed signal response, i.e. AC coupled processing
Speed is 6G to the 10G signals of high speed, and the transmission signal rate of dc-couple processing is 155M to the 4.25G of low speed.
Transtation mission circuit of the present invention has two kinds of signal modulation modes, and high speed signal and low speed signal, energy can be modulated respectively
The signal of height different rates scope is handled it so that the signal that can be supported using the fiber optical transceiver of the transtation mission circuit
Speed range be 155M between 10G, there is provided the flexibility of application for the signal of even more high speed.
Fig. 2 is the receiving circuit schematic diagram of fiber optical transceiver provided in an embodiment of the present invention, including light-receiving component ROSA,
For the optical signal of reception to be converted into corresponding electric signal and exported, in addition to the FPGA signal identifications being connected with the ROSA
Module, the FPGA signal identifications mould connection FPGA switch modules and FPGA signal transmitting and receiving modules；The FPGA switch modules and
The first limiting amplifier and the second limiting amplifier are connected between the FPGA signal transmitting and receivings module.
Wherein, the FPGA signal identifications module, the electric signal for recognizing the ROSA outputs, if the electric signal is
High speed signal, then export the first control signal to the FPGA signal transmitting and receivings module and the FPGA switch modules, if the electricity
Signal is low speed signal, then exports the second control signal to the FPGA signal transmitting and receivings module and the FPGA switch modules；Institute
State FPGA signal transmitting and receivings module and the FPGA switch modules and receive first control signal or the second control letter
Number when, while responsive operation formation signal output channels：The high speed signal is output to the first limit by the FPGA switch modules
Width amplifier, is exported after being handled via first limiting amplifier by the FPGA signal transmitting and receivings module；Or, the FPGA
The low speed signal is output to the second limiting amplifier by switch module, and institute is passed through after being handled via second limiting amplifier
State the output of FPGA signal transmitting and receivings module.
Specifically, it is 6G to 10G signals that the high speed signal, which is transmission rate,.The low speed signal is that transmission rate is
155M to 4.25G signals.The signal of the FPGA signal transmitting and receivings module output is differential output signal.The FPGA switch modules
It is identical with the control logic of FPGA signal transmitting and receiving modules, touched after the corresponding control signal of FPGA signal identifications module output is received
Hair, while work forms signal output channels, FPGA switch modules only output signals to a limiting amplifier, it is ensured that a speed
The signal of rate scope is processed and exported.The FPGA signal transmitting and receivings module, FPGA switch modules and FPGA signal identification modules
It is made up of fpga chip, three modules can be integrated in same fpga chip, reduces space hold, circuit small volume integrated level
It is high.
Receiving circuit of the present invention can be responded to the signal of height different rates scope so that using the receiving circuit
Fiber optical transceiver responds processing for the signal of height different transmission rates scope, it would be preferable to support signal rate scope be
155M is between 10G, the signal of even more high speed, improve using the receiving circuit fiber optical transceiver application it is flexible
Property.
Fig. 3 is fiber optical transceiver schematic diagram provided in an embodiment of the present invention, including above-mentioned transtation mission circuit and receiving circuit with
And Micro-processor MCV, transtation mission circuit and receiving circuit share a FPGA signal transmitting and receiving module.Specifically, the transtation mission circuit
Including laser, in addition to FPGA signal transmitting and receiving modules, for receiving and identifying at least one input signal, if described at least one
Individual input signal is high speed signal, then at least one described input signal is output into first laser device driver（Swash at a high speed
Optical drive）；If at least one described input signal is low speed signal, at least one described input signal is output to second and swashed
Light device driver（That is low speed Laser Driven）；The first laser device driver, at least one to be defeated described in receiving
Enter signal to be converted into AC modulated signals and make the AC modulated signals as the offset signal driving laser described
Laser exports optical signal；The second laser driver, at least one input signal conversion described in receiving
The laser is driven to export the laser into HVDC Modulation signal and using the HVDC Modulation signal as offset signal
Optical signal.
At least one described input signal is differential input signal, and the high speed signal is that transmission rate is 6G to 10G's
Signal, the low speed signal is the signal that transmission rate is 155M to 4.25G.The laser can be arbitrary laser,
Such as Distributed Feedback Laser, LD lasers etc., this is not limited by the present invention.FPGA signal transmitting and receivings module is by fpga chip in the present invention
Constitute, the differential input signal inputted using the high-speed sampling function collection identification of fpga chip from external host, to input
Signal is that high speed signal or low speed signal are identified and exported respectively, is easy to subsequent treatment.
The receiving circuit includes light-receiving component ROSA, for the optical signal of reception to be converted into corresponding electric signal simultaneously
Output, in addition to the FPGA signal identification moulds being connected with the ROSA, the FPGA signal identifications mould connect FPGA switch modules
With the FPGA signal transmitting and receivings module；The first limit is connected between the FPGA switch modules and the FPGA signal transmitting and receivings module
Width amplifier（I.e. high speed limit is put）With the second limiting amplifier（That is low speed limit is put）；Wherein, the FPGA signal identifications module is used
In the electric signal for recognizing the ROSA outputs, if the electric signal is high speed signal, the first control signal is exported described in
FPGA signal transmitting and receivings module and the FPGA switch modules, if the electric signal is low speed signal, export the second control signal
To the FPGA signal transmitting and receivings module and the FPGA switch modules；The FPGA signal transmitting and receivings module and the FPGA switching moldings
Block is when receiving first control signal or second control signal, while work forms signal output channels：It is described
The high speed signal is output to first limiting amplifier by FPGA switch modules, is handled via first limiting amplifier
Exported afterwards by the FPGA signal transmitting and receivings module；Or, the low speed signal is output to described by the FPGA switch modules
Second limiting amplifier, is exported after being handled via second limiting amplifier by the FPGA signal transmitting and receivings module；Wherein,
Likewise, the signal that it is 6G to 10G that the high speed signal, which is transmission rate, the low speed signal is that transmission rate is that 155M is arrived
4.25G signal.The signal of the FPGA signal transmitting and receivings module output is differential output signal.The FPGA switch modules and
The control logic of FPGA signal transmitting and receiving modules is identical, is touched after the corresponding control signal of FPGA signal identifications module output is received
Hair, while work forms signal output channels, FPGA switch modules only output signals to a limiting amplifier, it is ensured that a speed
The signal of rate scope is processed and exported.
The first laser device driver, second laser driver, the first limiting amplifier and the second limiting amplifier
It is connected respectively with the microprocessor, the microprocessor is used to control there was only first laser device driver within the same period
Worked with the first limiting amplifier, or, only second laser driver and the second limiting amplifier work.
The fiber optical transceiver is using two kinds of different modulation system modulation driving lasers of HVDC Modulation and AC modulation, tool
There are function of the processing at a high speed with low speed different transmission rates range signal, generally in a period of time, only a kind of signal（It is high
Fast signal or low speed signal）Processing is needed, therefore microprocessor control only has first laser device driver within the same period
With the work of the first limiting amplifier, the high speed signal that transmission rate is 6G to 10G is now handled, or, only second laser
Driver and the work of the second limiting amplifier, now handle the low speed signal that transmission rate is 155M to 4.25G.
It is preferred that, the FPGA switch modules, FPGA signal identifications module and FPGA signal transmitting and receiving modules are integrated in same
Three difference in functionalitys are realized in individual fpga chip, compared to the module being made up of respectively three fpga chips, volume is smaller, taken
PCB surface product is few, improves the space availability ratio in fiber optical transceiver.
The fiber optical transceiver also includes golden finger connector, is connected with the FPGA signal transmitting and receivings module, for connecting
Outside main circuit, receiving and transmitting signal.The golden finger connector is also connected with the Micro-processor MCV, for MCU and outside main electricity
Road communicates.The MCU is also communicated to connect with the FPGA signal transmitting and receivings module, and parameter information can be read.
The present invention also provides a kind of signal modulating method of fiber optical transceiver based on same design, including：
At least one input signal is received and identified, will be described if at least one described input signal is high speed signal
At least one input signal is output to first laser device driver；, will if at least one described input signal is low speed signal
At least one described input signal is output to second laser driver；Described in the first laser device driver will be received
At least one input signal is converted into AC modulated signals and drives laser using the AC modulated signals as offset signal
Make the laser output optical signal；The second laser driver will receive described at least one input signal conversion
Believe the laser output light into HVDC Modulation signal and using the HVDC Modulation signal as offset signal driving laser
Number.At least one described input signal is differential input signal.The high speed signal is the signal that transmission rate is 6G to 10G.
The low speed signal is the signal that transmission rate is 155M to 4.25G.Specifically refer to the transtation mission circuit of foregoing fiber optical transceiver
The description of embodiment part.
Signal modulating method of the present invention exchanges AC modulation systems and direct current DC modulation using two kinds of laser modulation modes
Mode, exchange AC modulation systems carry out AC coupled processing, and direct current DC modulation systems can increase directly on laser bias circuit
Flow coupling unit and carry out dc-couple processing, the purpose for setting two kinds of modulation systems is in order to which the signal to different rates scope is done
Go out processing, one kind is used for igh-speed wire-rod production line, another to be used for the transmission signal speed of slow speed signal response, i.e. AC coupled processing
Rate is 6G to the 10G signals of high speed, and the transmission signal rate of dc-couple processing is 155M to the 4.25G signals of low speed, can spirit
The signal of processing different rates living.
The present invention also provides a kind of signal processing method of fiber optical transceiver based on same design, and this method is applied to above-mentioned
The fiber optical transceiver of embodiment or the receiving circuit of fiber optical transceiver, including：
The FPGA signal identifications module recognizes the electric signal of the ROSA outputs, if the electric signal is high speed signal,
The first control signal is then exported to the FPGA signal transmitting and receivings module and the FPGA switch modules, if the electric signal is low speed
Signal, then export the second control signal to the FPGA signal transmitting and receivings module and the FPGA switch modules；
The FPGA signal transmitting and receivings module and the FPGA switch modules are receiving first control signal or described
During the second control signal, while responsive operation formation signal output channels：The FPGA switch modules are defeated by the high speed signal
Go out to the first limiting amplifier, exported after being handled via first limiting amplifier by the FPGA signal transmitting and receivings module；
Or, the low speed signal is output to the second limiting amplifier by the FPGA switch modules, via second limiting amplifier
Exported after processing by the FPGA signal transmitting and receivings module.
Specifically, the signal that it is 6G to 10G that the high speed signal, which is transmission rate,.The low speed signal is that transmission rate is
155M to 4.25G signal.The signal of the FPGA signal transmitting and receivings module output is differential output signal.The FPGA switching moldings
Block is identical with the control logic of FPGA signal transmitting and receiving modules, after the corresponding control signal of FPGA signal identifications module output is received
Triggering, while work forms signal output channels, FPGA switch modules only output signals to a limiting amplifier, it is ensured that one
The signal of speed range is processed and exported.The FPGA signal transmitting and receivings module, FPGA switch modules and FPGA signal identification moulds
Block is made up of fpga chip, and three modules can be integrated in same fpga chip, reduces space hold, and circuit small volume is integrated
Degree is high.
Signal processing method of the present invention can be responded to the signal of height different transmission rates scope so that use the party
The fiber optical transceiver of method responds processing for the signal of height different transmission rates scope, it would be preferable to support signal rate model
It is 155M between 10G to enclose, the signal of even more high speed, improve using the fiber optical transceiver of this method apply it is flexible
Property.
The present invention can modulate high speed signal and low speed signal respectively, and the signal of height different transmission rates scope can be done
Go out processing, the signal of height different rates scope can equally be responded so that using the fiber optical transceiver of the present invention program
Handle it and respond for the signal of height different rates scope, it would be preferable to support signal transmission rate scope for 155M extremely
Between 10G, the signal of even more high speed improves the flexibility of fiber optical transceiver application.
The embodiment of the present invention is described in detail above in conjunction with accompanying drawing, but the present invention is not restricted to
Embodiment is stated, in the case of the spirit and scope of claims hereof are not departed from, those skilled in the art can make
Go out various modifications or remodeling.
Claims (14)
1. a kind of transtation mission circuit of fiber optical transceiver, including laser, it is characterised in that also include：
FPGA signal transmitting and receiving modules, for receiving and identifying at least one input signal, if at least one described input signal is
High speed signal, then be output to first laser device driver by least one described input signal；If at least one described input letter
Number be low speed signal, then at least one described input signal is output to second laser driver；The input signal is poor
Divide input signal；The FPGA signal transmitting and receivings module gathers the differential input signal of input using high-speed sampling function, and
To the differential input signal be high speed signal or low speed signal be identified after export；
The first laser device driver, AC modulated signals are converted into at least one input signal described in receiving
And drive the laser laser is exported optical signal using the AC modulated signals as offset signal；
The second laser driver, HVDC Modulation signal is converted into at least one input signal described in receiving
And drive the laser laser is exported optical signal using the HVDC Modulation signal as offset signal.
2. the transtation mission circuit of fiber optical transceiver according to claim 1, it is characterised in that the high speed signal is transmission speed
Rate is 6G to 10G signal.
3. the transtation mission circuit of fiber optical transceiver according to claim 1, it is characterised in that the low speed signal is transmission speed
Rate is 155M to 4.25G signals.
4. a kind of receiving circuit of fiber optical transceiver, including light-receiving component ROSA, for the optical signal of reception to be converted into pair
The electric signal answered and output, it is characterised in that also including the FPGA signal identification modules being connected with the ROSA, the FPGA letters
Number identification module connection FPGA switch modules and FPGA signal transmitting and receiving modules；The FPGA switch modules and the FPGA signals are received
The first limiting amplifier and the second limiting amplifier are connected between hair module；
Wherein, the FPGA signal identifications module, the electric signal for recognizing the ROSA outputs, if the electric signal is at a high speed
Signal, then export the first control signal to the FPGA signal transmitting and receivings module and the FPGA switch modules, if the electric signal
For low speed signal, then the second control signal is exported to the FPGA signal transmitting and receivings module and the FPGA switch modules；
The FPGA signal transmitting and receivings module and the FPGA switch modules are receiving first control signal or described second
During control signal, while responsive operation formation signal output channels：The high speed signal is output to by the FPGA switch modules
First limiting amplifier, is exported after being handled via first limiting amplifier by the FPGA signal transmitting and receivings module；Or, institute
State FPGA switch modules and the low speed signal is output to the second limiting amplifier, after being handled via second limiting amplifier
Exported by the FPGA signal transmitting and receivings module.
5. the receiving circuit of fiber optical transceiver according to claim 4, it is characterised in that the high speed signal is transmission speed
Rate is 6G to 10G signal.
6. the receiving circuit of fiber optical transceiver according to claim 4, it is characterised in that the low speed signal is transmission speed
Rate is 155M to 4.25G signal.
7. the receiving circuit of fiber optical transceiver according to claim 4, it is characterised in that the FPGA signal transmitting and receivings module
The signal of output is differential output signal.
8. a kind of fiber optical transceiver, it is characterised in that including transtation mission circuit and receiving circuit, the transtation mission circuit includes laser
Device, in addition to：
FPGA signal transmitting and receiving modules, for receiving and identifying at least one input signal, if at least one described input signal is
High speed signal, then be output to first laser device driver by least one described input signal；If at least one described input letter
Number be low speed signal, then at least one described input signal is output to second laser driver；
The first laser device driver, AC modulated signals are converted into at least one input signal described in receiving
And drive the laser laser is exported optical signal using the AC modulated signals as offset signal；
The second laser driver, HVDC Modulation signal is converted into at least one input signal described in receiving
And drive the laser laser is exported optical signal using the HVDC Modulation signal as offset signal；
The receiving circuit includes：
Light-receiving component ROSA, for the optical signal of reception to be converted into corresponding electric signal and exported；Also include with it is described
The FPGA signal identification modules of ROSA connections, the FPGA signal identifications module connection FPGA switch modules and the FPGA signals
Transceiver module；The first limiting amplifier and second are connected between the FPGA switch modules and the FPGA signal transmitting and receivings module
Limiting amplifier；
Wherein, the FPGA signal identifications module, the electric signal for recognizing the ROSA outputs, if the electric signal is at a high speed
Signal, then export the first control signal to the FPGA signal transmitting and receivings module and the FPGA switch modules, if the electric signal
For low speed signal, then the second control signal is exported to the FPGA signal transmitting and receivings module and the FPGA switch modules；
The FPGA signal transmitting and receivings module and the FPGA switch modules are receiving first control signal or described second
During control signal, while work forms signal output channels：The high speed signal is output to described by the FPGA switch modules
First limiting amplifier, is exported after being handled via first limiting amplifier by the FPGA signal transmitting and receivings module；Or,
The low speed signal is output to second limiting amplifier by the FPGA switch modules, via second limiting amplifier
Exported after processing by the FPGA signal transmitting and receivings module；
Also include microprocessor, for controlling there was only first laser device driver and the first limiting amplifier within the same period
Work, or, only second laser driver and the second limiting amplifier work.
9. fiber optical transceiver according to claim 8, it is characterised in that the FPGA switch modules, FPGA signal identifications
Module and FPGA signal transmitting and receiving modules are integrated in same fpga chip.
10. a kind of signal modulating method of fiber optical transceiver, it is characterised in that including：
At least one input signal is received and identified, if at least one described input signal is high speed signal, by described at least
One input signal is output to first laser device driver；, will be described if at least one described input signal is low speed signal
At least one input signal is output to second laser driver；
The first laser device driver will receive described at least one input signal be converted into AC modulated signals and will
The AC modulated signals make the laser export optical signal as offset signal driving laser；
The second laser driver will receive described at least one input signal be converted into HVDC Modulation signal and will
The HVDC Modulation signal makes the laser export optical signal as offset signal driving laser.
11. the signal modulating method of fiber optical transceiver according to claim 10, it is characterised in that described at least one is defeated
Enter signal for differential input signal.
12. the signal modulating method of fiber optical transceiver according to claim 10, it is characterised in that the high speed signal is
Transmission rate is 6G to 10G signals.
13. the signal modulating method of fiber optical transceiver according to claim 10, it is characterised in that the low speed signal is
Transmission rate is 155M to 4.25G signals.
14. a kind of signal processing method of fiber optical transceiver, it is characterised in that this method is applied to as claim 4-7 is any
Receiving circuit described in, including：
The FPGA signal identifications module recognizes the electric signal of the ROSA outputs, defeated if the electric signal is high speed signal
Go out the first control signal to the FPGA signal transmitting and receivings module and the FPGA switch modules, if the electric signal is believed for low speed
Number, then the second control signal is exported to the FPGA signal transmitting and receivings module and the FPGA switch modules；
The FPGA signal transmitting and receivings module and the FPGA switch modules are receiving first control signal or described second
During control signal, while responsive operation formation signal output channels：The high speed signal is output to by the FPGA switch modules
First limiting amplifier, is exported after being handled via first limiting amplifier by the FPGA signal transmitting and receivings module；Or, institute
State FPGA switch modules and the low speed signal is output to the second limiting amplifier, after being handled via second limiting amplifier
Exported by the FPGA signal transmitting and receivings module.
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| CN109217936A (en) * | 2017-06-30 | 2019-01-15 | 中国电信股份有限公司 | Optical signal method of reseptance and system |
| CN107294614A (en) * | 2017-07-27 | 2017-10-24 | 青岛海信宽带多媒体技术有限公司 | The signal output method of optical module and optical module |
| CN114157360B (en) * | 2020-09-08 | 2023-07-25 | 佳必琪国际股份有限公司 | Signal processing method of optical module |
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| KR100612617B1 (en) * | 2003-09-23 | 2006-08-17 | 한국과학기술원 | Apparatus for lifeline communication in optical access network |
| CN101355388B (en) * | 2007-07-25 | 2012-07-04 | 华为技术有限公司 | Receiving apparatus and method |
| CN101753219A (en) * | 2008-12-09 | 2010-06-23 | 德铼通讯器件(张家港)有限公司 | 1550nm single-wavelength quasi-duplex optical module for industrial DC data transmission |
| CN101729949B (en) * | 2009-12-21 | 2013-06-19 | 烽火通信科技股份有限公司 | WDM PON device with dynamically allocable wavelengths |
| CN101848033B (en) * | 2010-04-28 | 2012-11-14 | 成都优博创技术有限公司 | Dual-rate receiving device |
| CN102547491B (en) * | 2010-12-29 | 2015-12-16 | 中兴通讯股份有限公司 | Optical line terminal, optical network unit and passive optical network |
| JP2013219599A (en) * | 2012-04-10 | 2013-10-24 | Nippon Telegr & Teleph Corp <Ntt> | Multirate optical signal receiving device and method |
| CN102625199B (en) * | 2012-04-23 | 2014-06-11 | 索尔思光电（成都）有限公司 | Dual-channel GEPON OLT CSFP (Gigabitcapable Passive Optical Network Optical Line Terminal Compact Small Form Factor Pluggable) optical module |
| CN102820931A (en) * | 2012-08-09 | 2012-12-12 | 青岛海信宽带多媒体技术有限公司 | Optical module of dual-mode optical network unit |
| CN203522747U (en) * | 2013-09-22 | 2014-04-02 | 武汉恒泰通技术有限公司 | High-speed TTL optical module compatible with ultra-low-speed |
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