CN104967487B - A kind of optical module based on transparent transmission monitoring signal in warbled band - Google Patents
A kind of optical module based on transparent transmission monitoring signal in warbled band Download PDFInfo
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- CN104967487B CN104967487B CN201510440283.6A CN201510440283A CN104967487B CN 104967487 B CN104967487 B CN 104967487B CN 201510440283 A CN201510440283 A CN 201510440283A CN 104967487 B CN104967487 B CN 104967487B
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Abstract
The invention discloses a kind of optical module based on transparent transmission monitoring signal in warbled band, belong to communication technical field.The optical module, including low speed frequency modulation circuit, laser driving circuit, laser, electric absorption signal modulation circuit, electroabsorption modulator, avalanche photodide, trsanscondutance amplifier, limiting amplifier, circuit mirror current, low speed frequency demodulator circuit.Compared to traditional optical module, monitoring signal is loaded on the envelope of institute's bearer service signal by the optical module described in the technical program by frequency modulation(PFM), optical cable and channel resource are shared with bearer service signal, channel resource is saved, and the monitoring signal of transparent transmission is unrelated with institute bearer service signaling protocol, the use flexibility with height；Because optical module is internally integrated low speed modulates baseband signals, demodulating unit, without outside extra increase light functional unit, the transparent transmission of monitoring signal is can be achieved with, is the solution of most economic benefit to the application scenarios for needing transmitting, monitoring signal.
Description
Technical field
Accessed the present invention relates to communication technical field, particularly Optical Transmission Network OTN, mobile forward pass, mobile retransmission, fixed broadband,
The communications fields such as big customer's access via telephone line, more particularly to a kind of optical module based on transparent transmission monitoring signal in warbled band.
Background technology
The continuous expansion of communication network primary transmission capacity and the continuous improvement of speed cause fiber optic communication to turn into present information
The prevailing transmission means of network.In present optical communication network, the optical transceiver module of one of core opto-electronic device is used as
Species is more and more, it is desirable to also more and more higher, and complexity also develops with surprising rapidity.
Meanwhile, increasing fiber optic communication application scenarios require that optical transceiver module can not only transmit its business carried
Signal, while also various management and monitoring signal can be transmitted.Because the business of carrying varies, in order that management and monitoring
Information is independent of service signal, and traditional method is to open up a special wavelength channel to carry out transmitting, monitoring signal.
Traditional optical transceiver module does not possess simultaneous transmission service signal and monitoring signal function so that operator is in various need
The application scenarios of transmitting, monitoring signal are wanted to have to increase extra optical cable and channel resource, it has to increase extra light transmitting-receiving
Module and division wave device, these all bring such as input cost rising to operator, and the availability of frequency spectrum is high, multi-standard and
The disunity of multi-protocols, the problems such as cost of equipment is expensive.
The content of the invention
The present invention proposes a kind of optical module based on transparent transmission monitoring signal in warbled band, can be good at solving
Above mentioned problem in background technology.This programme using frequency modulation(PFM) by monitoring signal by being loaded into the bag of institute's bearer service signal
On network, optical cable and channel resource are shared with bearer service signal, channel resource can be saved to greatest extent, and transparent transmission is monitored
Signal is unrelated with bearer service signaling protocol, the use flexibility with height, the application scenarios to needing transmitting, monitoring signal,
It is the solution of most economic benefit.
The technical solution adopted by the present invention is：
A kind of optical module based on transparent transmission monitoring signal in warbled band, the optical module, including transmitting element and
Receiving unit；The transmitting element, including for base band supervisory signal to be modulated into the low speed frequency of low speed frequency modulated signal
Modulation circuit, the laser driving circuit for low speed frequency modulated signal to be transformed into low speed current modulated, for adding
Carry the laser of low speed current modulated, the electric absorption signal modulation electricity for service signal to be generated to high speed electric impulse signal
Road, the electroabsorption modulator for controlling whether the light wave that absorption is sent by laser by high speed electric impulse signal；It is described to receive
Unit, including for receiving the optical signal from outside optical-fiber network and converting optical signals into the pole of avalanche optoelectronic two of current signal
Pipe, the trsanscondutance amplifier for main road current pulse signal to be converted into voltage pulse signal, for whole to voltage pulse signal
Shape recovers the limiting amplifier, proportional to main road current signal for branch current signal to be transformed into for receiving service signal
Current pulse signal circuit mirror current, for by current pulse signal demodulate receive base band low speed monitoring signal it is low
Fast frequency demodulation circuit；
Wherein, the low speed frequency modulation circuit is connected by laser driving circuit with laser, the electric absorption letter
Number modulation circuit is connected with electroabsorption modulator, and the laser is connected with electroabsorption modulator；The avalanche photodide
A wherein output port be connected by trsanscondutance amplifier with limiting amplifier, another output end of the avalanche photodide
Mouth is connected by circuit mirror current with low speed frequency demodulator circuit.
Wherein, the low speed frequency modulation circuit, including for producing the first carrier generator and second of carrier being frequency modulated
Carrier generator and the analog switch for generating low speed frequency modulated signal；
Wherein, the output of the first carrier generator and the output of the second carrier generator connect the simulation and opened respectively
The input of pass.
Wherein, the low speed frequency demodulator circuit, including for filter out the high speed business signal in current pulse signal with
Retain the low-pass filter circuit of low speed monitoring signal, the mutual conductance for low speed current signal to be converted into low-speed voltage signal to amplify
Circuit, for only allow the first bandpass filter and the second bandpass filter that specific frequency carrier wave passes through, for by two mutually
Incoherent analog signal realizes the first multiplier and the second multiplier of multiplication function, the first for producing local oscillator carrier wave
Ground carrier wave and the second local carrier, for filtering out it is higher than cut-off frequency composition to retain the first low pass of low frequency baseband signal composition
Wave filter and the second low pass filter and the comparison decision device for recovering reception base band supervisory signal；
Wherein, the output of the low-pass filter circuit is connected with the input of mutual conductance amplifying circuit, the mutual conductance amplifying circuit
Output simultaneously connect the first bandpass filter input and the second bandpass filter input, first bandpass filter
Output and the output of the first local carrier connect the input of the first multiplier, the output connection first of first multiplier respectively
The input of low pass filter, the output of second bandpass filter and the output of the second local carrier connect the second multiplication respectively
The input of device, second multiplier output connection the second low pass filter input, first low pass filter it is defeated
The output gone out with the second low pass filter is connected respectively compares decision device.
Wherein, the circuit mirror current uses mirror current source to produce branch road equal with main road size of current all the way
Electric current, or use current sampling circuit with by main road electric current by current/voltage translation circuit be converted into main road electric current into
The voltage signal of ratio.
A kind of optical communication system, including, the first optical transceiver module and the second optical transceiver module, first optical transceiver module
It is connected by optical communication network with the second optical transceiver module；
Wherein, first optical transceiver module and the second optical transceiver module are optical module described above.
Beneficial effect：
A kind of optical module based on transparent transmission monitoring signal in warbled band of the present invention, including transmitting element and
Receiving unit；The transmitting element, including for base band supervisory signal to be modulated into the low speed frequency of low speed frequency modulated signal
Modulation circuit, the laser driving circuit for low speed frequency modulated signal to be transformed into low speed current modulated, for adding
Carry the laser of low speed current modulated, the electric absorption signal modulation electricity for service signal to be generated to high speed electric impulse signal
Road, the electroabsorption modulator for controlling whether the light wave that absorption is sent by laser by high speed electric impulse signal；It is described to receive
Unit, including for receiving the optical signal from outside optical-fiber network and converting optical signals into the pole of avalanche optoelectronic two of current signal
Pipe, the trsanscondutance amplifier for main road current pulse signal to be converted into voltage pulse signal, for whole to voltage pulse signal
Shape recovers the limiting amplifier, proportional to main road current signal for branch current signal to be transformed into for receiving service signal
Current pulse signal circuit mirror current, for by current pulse signal demodulate receive base band low speed monitoring signal it is low
Fast frequency demodulation circuit.It can be seen that, optical module of the present invention due to monitoring signal is carried on optical service signal envelope, because
This, without extra increase light-path, existing optical cable and conduit resource can be shared to greatest extent；Because monitoring signal is to be carried in light
On service signal envelope, therefore, the program is unrelated with communication protocol, great flexibility；Due to without outside extra increase light work(
Can unit, most program Optimum cost, economic value.
Brief description of the drawings
Fig. 1 is a kind of optical mode based on transparent transmission monitoring signal in warbled band that the specific embodiment of the invention is provided
The internal structure functional block diagram of block.
Fig. 2 is the functional block diagram for the low speed frequency modulation circuit that the specific embodiment of the invention is provided.
Fig. 3 is the functional block diagram for the low speed frequency demodulator circuit that the specific embodiment of the invention is provided.
Fig. 4 is a kind of point-to-point communication application scenarios that the specific embodiment of the invention is provided.
Fig. 5 a are the oscillograms based on FSK modulation that the specific embodiment of the invention is provided.
Fig. 5 b are another oscillograms modulated based on OOK that the specific embodiment of the invention is provided.
In figure：
10：First optical transceiver module； 20：Second optical transceiver module；
11：Laser； 21：Avalanche photodide；
12：Electroabsorption modulator； 22：Circuit mirror current；
13：Laser driving circuit； 23：Trsanscondutance amplifier；
14：Low speed frequency modulation circuit； 24：Limiting amplifier；
15：Electric absorption signal modulation circuit； 25：Low speed frequency demodulator circuit；
30：Optical communication network；
141：First carrier generator； 142：Second carrier generator；
143：Analog switch；
251：Low-pass filter circuit；
252：Mutual conductance amplifying circuit；
253：First bandpass filter； 258：Second bandpass filter；
254：First multiplier； 259：Second multiplier；
255：First low pass filter； 260：Second low pass filter；
256：First local carrier； 257：Second local carrier；
261：Compare decision device.
Embodiment
The present invention is described in detail with reference to embodiment and accompanying drawing.
Fig. 1 is a kind of optical mode based on transparent transmission monitoring signal in warbled band that the specific embodiment of the invention is provided
The internal structure functional block diagram of block.As shown in figure 1, the present invention proposes one kind based on transparent transmission monitoring signal in warbled band
Optical module, including transmitting element and receiving unit；The transmitting element, including for base band supervisory signal to be modulated into low speed
The low speed frequency modulation circuit 14 of frequency modulated signal, for low speed frequency modulated signal to be transformed into low speed current modulated
Laser driving circuit 13, the laser 11 for loading low speed current modulated, for by service signal generate at a high speed
The electric absorption signal modulation circuit 15 of electric impulse signal, for by high speed electric impulse signal control whether absorb sent out by laser 11
The electroabsorption modulator 12 of the light wave gone out；The receiving unit, including for receiving the optical signal from outside optical-fiber network and inciting somebody to action
Optical signal is converted into the avalanche photodide 21 of current signal, for main road current pulse signal to be converted into voltage pulse letter
Number trsanscondutance amplifier 23, for voltage pulse signal shaping recover receive service signal limiting amplifier 24, be used for
Branch current signal is transformed into the circuit mirror current 22 of the current pulse signal proportional to main road current signal, for inciting somebody to action
Current pulse signal demodulates the low speed frequency demodulator circuit 25 for receiving base band low speed monitoring signal.
Below in conjunction with accompanying drawing 1, internal structure and the interconnection of each functional unit to optical module of the present invention are done furtherly
It is bright.
The low speed frequency modulation circuit 14 is connected by laser driving circuit 13 with laser 11, the electric absorption letter
Number modulation circuit 15 is connected with electroabsorption modulator 12, and the laser 11 is connected with electroabsorption modulator 12；The snowslide light
A wherein output port for electric diode 21 is connected by trsanscondutance amplifier 23 with limiting amplifier 24, the pole of avalanche optoelectronic two
Another output port of pipe 21 is connected by circuit mirror current 22 with low speed frequency demodulator circuit 25.
As shown in figure 1, the signal flow direction of the optical module bearer service signal is：
Tx1 is to send service signal, and Tx1 generates high speed electric impulse signal Vx1 by electric absorption signal modulation circuit 15,
Vx1 controls electroabsorption modulator 12 goes to absorb or does not absorb the light wave sent by laser 11, and reaching makes output optical pulse code stream
By the purpose of electric pulse bite rate control.Light pulse code stream is transmitted by outside optical-fiber network 30, and avalanche photodide 21 connects
The light pulse code stream from outside optical-fiber network 30 is received, main road current impulse Ix2 is converted into voltage pulse by trsanscondutance amplifier 23
Vx2, Vx2 carry out shaping by limiting amplifier 24, recover reception service signal Rx2.
It should be noted that electroabsorption modulator 12 is to utilize the optical signal that exciton absorption effect is made in semiconductor
Modulation device, fast response time, operating power consumption is low.Avalanche photodide 21 is a kind of light detection diode of P-N junction type, profit
Amplify photosignal with the avalanche multiplication effect of carrier, light pulse can be converted into current impulse.
As shown in figure 1, the signal flow direction of the low speed monitoring signal of the optical module transmission is：
S (t) 1 is to send base band supervisory signal（As shown in Fig. 5 a, Fig. 5 b）, s (t) 1 passes through low speed frequency modulation circuit 14
It is modulated into low speed frequency modulated signal V (t) 1（As shown in Fig. 5 a, Fig. 5 b）, behind the internal structure of low speed frequency modulation circuit 14
It will be further described.V (t) 1 is transformed into low speed current modulated I (t) 1 by laser driving circuit 13, and I (t) 1 is used for driving
Dynamic laser 11.Due to laser 11 light output amount and be carried in the certain proportionate relationship of 1 one-tenth of driving current I (t) thereon,
The luminous power amplitude that thus laser 11 is exported is by the indirect controls of base band low frequency monitoring signal s (t) 1.Laser 11 is inhaled as electricity
The light source of modulator 12 is received, base band low speed monitoring signal s (t) 1 can be loaded into and send service signal Tx1 envelope up,
The bearer service signal Power for the carrying monitoring signal information being modulated into（As shown in Fig. 5 a, Fig. 5 b）It is sent to exterior light net
Network 30.Avalanche photodide 21 receives the optical signal from outside optical-fiber network 30, converts thereof into current signal, main road electric current
Signal Ix2 recovers reception service signal Rx2 by trsanscondutance amplifier 23, limiting amplifier 24.Branch current signal passes through mirror
Image current circuit 22 is transformed into the current pulse signal I (t) 2 equal or proportional to main road current signal, and I (t) 2 passes through low speed
Frequency demodulation circuit 25 demodulates reception base band low speed monitoring signal d (t) 2.After the internal structure of low speed frequency demodulator circuit 25
Face will be further described.
It should be noted that temperature has large effect to the characteristic of laser 11, in order that the power output of laser 11
It is stable, generally require and temperature control is carried out to it, the laser 11 generally carries TEC thermostatic control modules.
Below in conjunction with accompanying drawing 2, internal structure and the interconnection of each functional unit to low speed frequency modulation circuit 14 are done further
Explanation.
Fig. 2 describes a kind of embodiment of low speed frequency modulation circuit 14, including for producing carrier being frequency modulated
The carrier generator 142 of first carrier generator 141 and second and the analog switch for generating low speed frequency modulated signal
143.Wherein, the output f1 of first carrier generator 141 and the output f2 of the second carrier generator 142 connect analog switch respectively
143 input.F1 and f2 load different carrier frequencies respectively, are gated by analog switch 143, analog switch 143
Gating is controlled by s (t) 1, when s (t) 1 is " 1 ", when output carrier frequency f2, s (t) 1 is " 0 ", exports carrier frequency f1, now analog switch
143 output v (t) 1 is fsk modulated signal（As shown in Figure 5 a）.CF signal is loaded in both f1 and f2 all the way, another road is not
CF signal is loaded, is gated by analog switch 143, the gating of analog switch 143 is controlled by s (t) 1, and s (t) 1 is " 1 "
When, CF signal is exported, when s (t) 1 is " 0 ", CF signal is not exported, now the output v (t) 1 of analog switch 143 adjusts for OOK
Signal processed（As shown in Figure 5 b）.
Below in conjunction with accompanying drawing 3, internal structure and the interconnection of each functional unit to low speed frequency demodulator circuit 25 are done further
Explanation.
Fig. 3 describes a kind of embodiment of low speed frequency demodulator circuit 25, including for filtering out current impulse letter
High speed business signal in number is to retain the low-pass filter circuit 251 of low speed monitoring signal, for low speed current signal to be changed
Mutual conductance amplifying circuit 252 into low-speed voltage signal, the first bandpass filter 253 for only allowing specific frequency carrier wave to pass through
The and of the first multiplier 254 with the second bandpass filter 258, for two orthogonal analog signals to be realized to the function that is multiplied
Second multiplier 259, the first local carrier 256 for producing local oscillator carrier wave and the second local carrier 257, it is higher than for filtering out
Cut-off frequency composition with retain low frequency baseband signal composition the first low pass filter 255 and the second low pass filter 260 and
Comparison decision device 261 for recovering reception base band supervisory signal, wherein, the output and mutual conductance of the low-pass filter circuit 251
The input connection of amplifying circuit 252, the output of the mutual conductance amplifying circuit 252 connects the defeated of the first bandpass filter 253 simultaneously
Enter the input with the second bandpass filter 258, exporting for first bandpass filter 253 is defeated with the first local carrier 256
Go out the input for connecting the first multiplier 254 respectively, output the first low pass filter 255 of connection of first multiplier 254
Input, the output of second bandpass filter 258 and the output of the second local carrier 257 connect the second multiplier 259 respectively
Input, second multiplier 259 output connection the second low pass filter 260 input, first low pass filter
255 output and the output of the second low pass filter 260 connect the input for comparing decision device 261 respectively.
Current pulse signal I (t) 2 includes high frequency service signal and low frequency monitoring signal simultaneously, and I (t) 2 passes through low pass filtered
Wave circuit 251 filters out high frequency service signal composition, only retains low speed monitoring modulated signal I (t) 2 ', low speed monitoring modulated signal I
(t) 2 ' by mutual conductance amplifying circuit 252, and low speed current signal is converted into low-speed voltage signal V（t）2, low-speed voltage signal V
（t）2 are divided into two-way, all the way by the first bandpass filter 253, the first multiplier 254（Another input of first multiplier is the
One local oscillation signal）, an input for comparing decision device 261 is flowed into after the first low pass filter 255, the second band is passed through on another road
Bandpass filter 258, the second multiplier 259（Another input of second multiplier is the second local oscillation signal）, the second low pass filter
Another input for comparing decision device 261 is flowed into after 260, compares final recover of decision device 261 and receives base band supervisory signal d
(t)2。
It should be noted that the low speed frequency demodulator circuit 25 of Fig. 3 descriptions, uses correlation demodulation mode, it is necessary to carry
Carrier information is taken, circuit structure is relative complex, advantage is that demodulated signal quality is good.For the not high place of demand on signal quality,
Non-coherent demodulation mode can also be used, without extracting carrier information, circuit structure is relatively easy, but signal quality is than relevant solution
Tune mode is poor.In addition, the block diagram of low speed frequency demodulator circuit 25 of Fig. 3 descriptions is the complete circuit of a FSK signal demodulation
Structured flowchart, if for demodulating OOK signals, circuit structure can simplify, and can remove the second bandpass filter 258, second
Local carrier 257, the second multiplier 259 and the second low pass filter 260.
In this programme, it is big with main road electric current all the way to produce that the circuit mirror current 22 can use mirror current source
Small equal branch current, it would however also be possible to employ current sampling circuit is so that main road electric current to be changed by current/voltage translation circuit
Into the voltage signal with main road current in proportion.
With reference to embodiments and Fig. 4, the application scenarios of the present invention are described further.
Fig. 4 describes a kind of application scenarios that point-to-point communication is carried out using optical module of the present invention.As shown in figure 4,
A kind of optical communication system, includes the first optical transceiver module 10, the second light transmitting-receiving mould 20, optical communication network 30, first light
Transceiver module 10 is connected by optical communication network 30 with the second optical transceiver module 20.The first light in described optical communication system is received
The hair optical transceiver module 20 of module 10 and second uses described above based on transparent transmission monitoring signal in warbled band
Optical module.
As shown in figure 4, Tx1 is the transmission service signal of the first optical transceiver module 10, s (t) 1 is the first optical transceiver module 10
Transmission base band supervisory signal, Rx1 is the reception service signal of the first optical transceiver module 10, and d (t) 1 is the first optical transceiver module
10 reception base band supervisory signal；Tx2 is the transmission service signal of the second optical transceiver module 20, and s (t) 2 is the second light transmitting-receiving mould
The transmission base band supervisory signal of block 20, Rx2 is the reception service signal of the second optical transceiver module 20, and d (t) 2 is the transmitting-receiving of the second light
The reception base band supervisory signal of module 20.
The s (t) 1 of carrying supervisory information is loaded into service signal by the first optical transceiver module 10 by frequency modulation(PFM)
On Tx1 envelope, the bearer service signal for the carrying monitoring signal information being modulated into（As shown in Fig. 5 a, 5b）, s (t) 1 and Tx1
Shared optical cable and channel resource, the optical receiving end of the second optical transceiver module 20 is sent to commonly through outside optical communication network 30
Mouthful, the second 20 pairs of optical transceiver module modulated signal received is demodulated, and reception service signal Rx2 and reception are recovered respectively
Base band supervisory signal d (t) 2.Similarly, the s (t) 2 for carrying supervisory information is passed through frequency modulation(PFM) by the second optical transceiver module 20
On the envelope for being loaded into service signal Tx2, s (t) 2 and Tx2 shares optical cable and channel resource, commonly through outside optical communication network
30 are sent to the light-receiving port of the first optical transceiver module 10, and the first 10 pairs of optical transceiver module modulated signal received is solved
Adjust, reception service signal Rx1 is recovered respectively and base band supervisory signal d (t) 1 is received.
In summary, according to the disclosure of the present invention, can accomplish the end in view there is provided based on warbled band
The optical module of interior transparent transmission monitoring signal, can be with the transparent transmission problem of cost-effective solution in band supervisory signal, with high production
Industry value.
The optical module based on transparent transmission monitoring signal in warbled band, both can be applied to design optical transceiver module,
It can also be applied to the other products based on the program.
Described above and accompanying drawing are only for illustrating embodiments of the invention, all those skilled in the art, not departing from
In the scope of the invention that attached claims are limited, still the present invention can be made a variety of changes in the form and details, its
Without departing from the technology and spirit of the present invention.
Claims (5)
1. a kind of optical module based on transparent transmission monitoring signal in warbled band, it is characterised in that:The optical module, including hair
Send unit and receiving unit；The transmitting element, including for base band supervisory signal to be modulated into low speed frequency modulated signal
Low speed frequency modulation circuit (14), the laser driving for low speed frequency modulated signal to be transformed into low speed current modulated
Circuit (13), the laser (11) for loading low speed current modulated, believe for service signal to be generated into high speed electric pulse
Number electric absorption signal modulation circuit (15), sent by laser (11) for controlling whether to absorb by high speed electric impulse signal
The electroabsorption modulator (12) of light wave；The receiving unit, including for receiving the optical signal from outside optical-fiber network and by light
Signal is converted into the avalanche photodide (21) of current signal, for main road current pulse signal to be converted into voltage pulse letter
Number trsanscondutance amplifier (23), for voltage pulse signal shaping recover receive service signal limiting amplifier (24),
For branch current signal is transformed into the current pulse signal proportional to main road current signal circuit mirror current (22),
The low speed frequency demodulator circuit (25) of base band low speed monitoring signal is received for current pulse signal to be demodulated；
Wherein, the low speed frequency modulation circuit (14) is connected by laser driving circuit (13) with laser (11), described
Electric absorption signal modulation circuit (15) is connected with electroabsorption modulator (12), the laser (11) and electroabsorption modulator (12)
Connection；A wherein output port for the avalanche photodide (21) passes through trsanscondutance amplifier (23) and limiting amplifier (24)
Connection, another output port of the avalanche photodide (21) demodulates electricity by circuit mirror current (22) and low speed frequency
Road (25) is connected；
The low speed frequency modulation circuit (14), including for producing the first carrier generator (141) and second of carrier being frequency modulated
Carrier generator (142) and the analog switch (143) for exporting low speed frequency modulated signal；
The low speed frequency demodulator circuit (25), including it is low to retain for filtering out the high speed business signal in current pulse signal
The low-pass filter circuit (251) of fast monitoring signal, the mutual conductance for low speed current signal to be converted into low-speed voltage signal are amplified
Circuit (252), the first bandpass filter (253) and the second bandpass filter for only allowing specific frequency carrier wave to pass through
(258), for two orthogonal analog signals to be realized to the first multiplier (254) and the second multiplier of multiplication function
(259), for producing the first local carrier (256) and the second local carrier (257) of local oscillator carrier wave, being higher than cut-off for filtering out
Frequency content with retain low frequency baseband signal composition the first low pass filter (255) and the second low pass filter (260) and
Comparison decision device (261) for recovering reception base band supervisory signal.
2. a kind of optical module based on transparent transmission monitoring signal in warbled band according to claim 1, its feature exists
In:Wherein, the output of the first carrier generator (141) and the output of the second carrier generator (142) connect described respectively
The input of analog switch (143).
3. a kind of optical module based on transparent transmission monitoring signal in warbled band according to claim 1, its feature exists
In:Wherein, the output of the low-pass filter circuit (251) is connected with the input of mutual conductance amplifying circuit (252), the mutual conductance amplification
The output of circuit (252) connects the input of the first bandpass filter (253) and the input of the second bandpass filter (258) simultaneously,
The output of first bandpass filter (253) and the output of the first local carrier (256) connect the first multiplier (254) respectively
Input, the output of first multiplier (254) connects the input of the first low pass filter (255), the second band logical filter
The output of ripple device (258) and the output of the second local carrier (257) connect the input of the second multiplier (259), described respectively
The output of paired multiplier (259) connects the input of the second low pass filter (260), first low pass filter (255) it is defeated
The output gone out with the second low pass filter (260) is connected respectively compares decision device (261).
4. a kind of optical module based on transparent transmission monitoring signal in warbled band according to claim 1, its feature exists
In:The circuit mirror current (22) uses mirror current source to produce branch current equal with main road size of current all the way,
Or use current sampling circuit to be converted into main road electric current and main road current in proportion by current/voltage translation circuit
Voltage signal.
5. a kind of optical communication system, it is characterised in that：Including, the first optical transceiver module (10) and the second optical transceiver module (20),
First optical transceiver module (10) is connected by optical communication network (30) with the second optical transceiver module (20)；
Wherein, first optical transceiver module (10) and the second optical transceiver module (20) are described in claim any one of 1-4
Optical module.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130652A (en) * | 2015-11-04 | 2016-11-16 | 威盛电子股份有限公司 | Optical transmitter and transmission method |
| CN109495185B (en) * | 2018-11-14 | 2020-12-22 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN112087258B (en) * | 2019-06-13 | 2022-06-10 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN112152722A (en) * | 2019-06-26 | 2020-12-29 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN110730040B (en) * | 2019-11-19 | 2024-03-29 | 杭州芯耘光电科技有限公司 | Low-speed communication method supporting wide dynamic receiving optical power range and optical module |
| CN113259013B (en) * | 2021-05-12 | 2022-07-08 | 希烽光电科技(南京)有限公司 | Single-wavelength 100G long-distance optical module |
| CN116132245A (en) * | 2023-02-13 | 2023-05-16 | 烽火通信科技股份有限公司 | 5G forwarding device management information monitoring method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326777A (en) * | 2012-03-23 | 2013-09-25 | 富士通株式会社 | Optical power monitor, optical power control system and optical power monitor method |
| CN204761443U (en) * | 2015-07-24 | 2015-11-11 | 武汉光迅科技股份有限公司 | In -band passes optical module of supervisory signal thoroughly based on frequency modulation |
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| CN103326777A (en) * | 2012-03-23 | 2013-09-25 | 富士通株式会社 | Optical power monitor, optical power control system and optical power monitor method |
| CN204761443U (en) * | 2015-07-24 | 2015-11-11 | 武汉光迅科技股份有限公司 | In -band passes optical module of supervisory signal thoroughly based on frequency modulation |
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