CN104967487A - In-band unvarnished transmission monitoring signal optical module based on frequency modulation - Google Patents
In-band unvarnished transmission monitoring signal optical module based on frequency modulation Download PDFInfo
- Publication number
- CN104967487A CN104967487A CN201510440283.6A CN201510440283A CN104967487A CN 104967487 A CN104967487 A CN 104967487A CN 201510440283 A CN201510440283 A CN 201510440283A CN 104967487 A CN104967487 A CN 104967487A
- Authority
- CN
- China
- Prior art keywords
- signal
- circuit
- current
- pass filter
- low speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Optical Communication System (AREA)
Abstract
The invention discloses an in-band unvarnished transmission monitoring signal optical module based on frequency modulation, and belongs to the technical field of communication. The optical module comprises a low-speed frequency modulation circuit, a laser drive circuit, a laser, an electric absorption signal modulation circuit, an electric absorption modulator, an avalanche photodiode, a transconductance amplifier, an amplitude-limiting amplifier, an image current circuit, and a low-speed frequency demodulation circuit. Compared with a conventional optical module, the optical module provided by the invention enables a monitoring signal to be loaded to a carried service signal envelope through frequency modulation, shares optical and channel resources with a carried service signal, and saves the channel resources. Moreover, an unvarnished transmission monitoring signal is not related with a carried service signal protocol, so the optical module is high in use flexibility. The interior of the optical module is integrated with a low-speed baseband signal modulation and demodulation unit, so the optical module can achieve the unvarnished transmission of the monitoring signal with no need of an additional optical function unit, and is the optimal solution to the application scenarios where the monitoring signal needs to be transmitted.
Description
Technical field
The present invention relates to communication technical field, particularly the communications field such as Optical Transmission Network OTN, mobile forward pass, mobile retransmission, fixed broadband access, big customer's access via telephone line, particularly relates to a kind of optical module based on transparent transmission pilot signal in warbled band.
Background technology
The continuous expansion of communication network primary transmission capacity and speed improve constantly the prevailing transmission means making optical fiber communication become present information network.In present optical communication network, the kind as the optical transceiver module of one of core light electronic device gets more and more, and require also more and more higher, complexity also develops with surprising rapidity.
Meanwhile, increasing optical fiber communication application scenarios requires that optical transceiver module can not only transmit its service signal carried, and also wants to transmit various management and pilot signal simultaneously.Because the business of carrying varies, in order to make management and monitor message not rely on service signal, traditional method opens up a special wavelength channel to carry out transmitting, monitoring signal.
Tradition optical transceiver module does not possess transmitting business signal and pilot signal function simultaneously, operator is made to have to increase extra optical cable and channel resource at the various application scenarios of transmitting, monitoring signal that needs, have to increase extra optical transceiver module and deciliter wave device, these all bring such as input cost to rise to operator, the availability of frequency spectrum is not high, the disunity of many standards and multi-protocols, the problems such as cost of equipment is expensive.
Summary of the invention
The present invention proposes a kind of optical module based on transparent transmission pilot signal in warbled band, can be good at solving the problems referred to above in background technology.This programme is loaded on the envelope of institute's bearer service signal by pilot signal being adopted frequency modulation(FM), with bearer service Signal share optical cable and channel resource, channel resource can be saved to greatest extent, and transparent transmission pilot signal and bearer service signaling protocol have nothing to do, there is the use flexibility of height, to the application scenarios needing transmitting, monitoring signal, it is the solution of most economic benefit.
The technical solution used in the present invention is:
Based on an optical module for transparent transmission pilot signal in warbled band, described optical module, comprises transmitting element and receiving element; Described transmitting element, the electroabsorption modulator of the light wave sent by laser that comprising the low speed frequency modulation circuit for base band supervisory signal being modulated into low speed frequency modulation signal, being used for low speed frequency modulation signal to be transformed into the drive circuit for laser of low speed current modulated, is used for loading the laser of low speed current modulated, is used for service signal to generate the electric absorption signal modulation circuit of High-speed Electric pulse signal, is used for being controlled whether to absorb by High-speed Electric pulse signal; Described receiving element, comprise the light signal for receiving from exterior light network and light signal is converted to current signal avalanche photodide, be used for main road current pulse signal to convert to voltage pulse signal trsanscondutance amplifier, be used for voltage pulse signal shaping recover receive service signal limiting amplifier, be used for branch current signal to be transformed into the current pulse signal proportional with main road current signal circuit mirror current, be used for current pulse signal being demodulated the low speed frequency demodulator circuit receiving base band low speed monitoring signal;
Wherein, described low speed frequency modulation circuit is connected with laser by drive circuit for laser, and described electric absorption signal modulation circuit is connected with electroabsorption modulator, and described laser is connected with electroabsorption modulator; A wherein output port of described avalanche photodide is connected with limiting amplifier by trsanscondutance amplifier, and another output port of described avalanche photodide is connected with low speed frequency demodulator circuit by circuit mirror current.
Wherein, described low speed frequency modulation circuit, comprises for generation of the first carrier generator of frequency modulated carrier and the second carrier generator and the analog switch for generating low speed frequency modulation signal;
Wherein, the output of described first carrier generator and the output of the second carrier generator are connected the input of described analog switch respectively.
Wherein, described low speed frequency demodulator circuit, comprise for the high speed business signal in filtering current pulse signal to retain the low-pass filter circuit of low speed monitoring signal, for low speed current signal being converted to the mutual conductance amplifying circuit of low-speed voltage signal, the first band pass filter passed through for only allowing characteristic frequency carrier wave and the second band pass filter, for the first multiplier and second multiplier of function that two mutual incoherent analog signals realizations are multiplied, for generation of the first local carrier and second local carrier of local oscillator carrier wave, for filtering higher than cut-off frequency composition to retain the first low pass filter and second low pass filter of low frequency baseband signal composition, and for recovering the comparison decision device receiving base band supervisory signal,
Wherein, the output of described low-pass filter circuit is connected with the input of mutual conductance amplifying circuit, the output of described mutual conductance amplifying circuit connects the input of the first band pass filter and the input of the second band pass filter simultaneously, the output of described first band pass filter is connected the input of the first multiplier respectively with the output of the first local carrier, the output of described first multiplier connects the input of the first low pass filter, the output of described second band pass filter is connected the input of the second multiplier respectively with the output of the second local carrier, the output of described second multiplier connects the input of the second low pass filter, the output of described first low pass filter is connected respectively with the output of the second low pass filter and compares decision device.
Wherein, described circuit mirror current adopts mirror current source to produce the road branch current equal with main road size of current, or adopts current sampling circuit to convert main road electric current to voltage signal with main road current in proportion by current/voltage translation circuit.
A kind of optical communication system, comprise, the first optical transceiver module and the second optical transceiver module, described first optical transceiver module is connected with the second optical transceiver module by optical communication network;
Wherein, described 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 pilot signal in warbled band of the present invention, comprises transmitting element and receiving element; Described transmitting element, the electroabsorption modulator of the light wave sent by laser that comprising the low speed frequency modulation circuit for base band supervisory signal being modulated into low speed frequency modulation signal, being used for low speed frequency modulation signal to be transformed into the drive circuit for laser of low speed current modulated, is used for loading the laser of low speed current modulated, is used for service signal to generate the electric absorption signal modulation circuit of High-speed Electric pulse signal, is used for being controlled whether to absorb by High-speed Electric pulse signal; Described receiving element, comprise the light signal for receiving from exterior light network and light signal is converted to current signal avalanche photodide, be used for main road current pulse signal to convert to voltage pulse signal trsanscondutance amplifier, be used for voltage pulse signal shaping recover receive service signal limiting amplifier, be used for branch current signal to be transformed into the current pulse signal proportional with main road current signal circuit mirror current, be used for current pulse signal being demodulated the low speed frequency demodulator circuit receiving base band low speed monitoring signal.Visible, optical module of the present invention is be carried on optical service signal envelope due to pilot signal, therefore, without the need to additionally increasing light path, can share existing optical cable and conduit resource to greatest extent; Because pilot signal is carried on optical service signal envelope, therefore, the program and communication protocol have nothing to do, and have flexibility; Owing to additionally increasing light functional unit without the need to outside, program Optimum cost, most economic worth.
Accompanying drawing explanation
Fig. 1 is the internal structure functional block diagram of a kind of optical module based on transparent transmission pilot signal in warbled band that the specific embodiment of the invention provides.
Fig. 2 is the functional block diagram of the low speed frequency modulation circuit that the specific embodiment of the invention provides.
Fig. 3 is the functional block diagram of the low speed frequency demodulator circuit that the specific embodiment of the invention provides.
Fig. 4 is a kind of point-to-point communication application scenarios that the specific embodiment of the invention provides.
Fig. 5 a is the oscillogram based on FSK modulation that the specific embodiment of the invention provides.
Fig. 5 b is another oscillogram based on OOK modulation that the specific embodiment of the invention provides.
In figure:
10: the first optical transceiver modules; 20: the second optical transceiver modules;
11: laser; 21: avalanche photodide;
12: electroabsorption modulator; 22: circuit mirror current;
13: drive circuit for laser; 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: the second carrier generators;
143: analog switch;
251: low-pass filter circuit;
252: mutual conductance amplifying circuit;
253: the first band pass filters; 258: the second band pass filters;
254: the first multipliers; 259: the second multipliers;
255: the first low pass filters; 260: the second low pass filters;
256: the first local carriers; 257: the second local carriers;
261: compare decision device.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail.
Fig. 1 is the internal structure functional block diagram of a kind of optical module based on transparent transmission pilot signal in warbled band that the specific embodiment of the invention provides.As shown in Figure 1, the present invention proposes a kind of optical module based on transparent transmission pilot signal in warbled band, comprise transmitting element and receiving element; Described transmitting element, the electroabsorption modulator 12 of the light wave sent by laser 11 that comprising the low speed frequency modulation circuit 14 for base band supervisory signal being modulated into low speed frequency modulation signal, being used for low speed frequency modulation signal to be transformed into the drive circuit for laser 13 of low speed current modulated, is used for loading the laser 11 of low speed current modulated, is used for service signal to generate the electric absorption signal modulation circuit 15 of High-speed Electric pulse signal, is used for being controlled whether to absorb by High-speed Electric pulse signal; Described receiving element, comprise the light signal for receiving from exterior light network and light signal is converted to current signal avalanche photodide 21, be used for main road current pulse signal to convert to voltage pulse signal trsanscondutance amplifier 23, be used for voltage pulse signal shaping recover receive service signal limiting amplifier 24, be used for branch current signal to be transformed into the current pulse signal proportional with main road current signal circuit mirror current 22, be used for current pulse signal being demodulated the low speed frequency demodulator circuit 25 receiving base band low speed monitoring signal.
Below in conjunction with accompanying drawing 1, the internal structure of optical module of the present invention and the interconnection of each functional unit are described further.
Described low speed frequency modulation circuit 14 is connected with laser 11 by drive circuit for laser 13, and described electric absorption signal modulation circuit 15 is connected with electroabsorption modulator 12, and described laser 11 is connected with electroabsorption modulator 12; A wherein output port of described avalanche photodide 21 is connected with limiting amplifier 24 by trsanscondutance amplifier 23, and another output port of described avalanche photodide 21 is connected with low speed frequency demodulator circuit 25 by circuit mirror current 22.
As shown in Figure 1, the signal of described optical module bearer service signal flows to and is:
Tx1 sends service signal, Tx1 generates High-speed Electric pulse signal Vx1 by electric absorption signal modulation circuit 15, Vx1 controls electroabsorption modulator 12 and goes absorb or do not absorb the light wave sent by laser 11, reaches the object making the powered pulse code current control of output optical pulse code stream.Light pulse code stream is transmitted by exterior light network 30, avalanche photodide 21 receives the light pulse code stream from exterior light network 30, main road current impulse Ix2 converts potential pulse Vx2 to by trsanscondutance amplifier 23, Vx2 carries out shaping by limiting amplifier 24, recovers and receives service signal Rx2.
It should be noted that, electroabsorption modulator 12 is the optical signal modulation devices utilizing exciton absorption effect in semiconductor to be made, and fast response time, operating power consumption is low.Avalanche photodide 21 is that a kind of light of P-N junction type detects diode, utilizes the avalanche multiplication effect of charge carrier to amplify photosignal, can convert light pulse to current impulse.
As shown in Figure 1, the signal of the low speed monitoring signal of described optical module transmission flows to and is:
S (t) 1 sends base band supervisory signal (as shown in Fig. 5 a, Fig. 5 b), s (t) 1 is modulated into low speed frequency modulation signal V (t) 1(as shown in Fig. 5 a, Fig. 5 b by low speed frequency modulation circuit 14), can further illustrate after the internal structure of low speed frequency modulation circuit 14.V (t) 1 is transformed into low speed current modulated I (t) 1, I (t) 1 by drive circuit for laser 13 and is used for drive laser 11.Due to the proportionate relationship that the light output amount of laser 11 is certain with drive current I (t) 1 one-tenth loaded thereon, the luminous power amplitude that thus laser 11 exports controls indirectly by base band low frequency pilot signal s (t) 1.Laser 11 is as the light source of electroabsorption modulator 12, base band low speed monitoring signal s (t) 1 can be loaded into the envelope sending service signal Tx1 to get on, the bearer service signal Power(of the pilot signal information of carrying be modulated into is as shown in Fig. 5 a, Fig. 5 b) be sent to exterior light network 30.Avalanche photodide 21 receives the light signal from exterior light network 30, converts thereof into current signal, and main road current signal Ix2 is recovered by trsanscondutance amplifier 23, limiting amplifier 24 and receives service signal Rx2.Branch current signal is transformed into current pulse signal I (t) 2, I (t) 2 equal or proportional with main road current signal by circuit mirror current 22 and is demodulated by low speed frequency demodulator circuit 25 and receive base band low speed monitoring signal d (t) 2.Can further illustrate after the internal structure of low speed frequency demodulator circuit 25.
It should be noted that, the characteristic of temperature on laser 11 has larger impact, in order to make laser 11 stable output power, generally needs to carry out temperature control to it, and described laser 11 is usually with TEC thermostatic control module.
Below in conjunction with accompanying drawing 2, the internal structure of low speed frequency modulation circuit 14 and the interconnection of each functional unit are described further.
Fig. 2 describes a kind of embodiment of low speed frequency modulation circuit 14, comprises for generation of the first carrier generator 141 of frequency modulated carrier and the second carrier generator 142 and the analog switch 143 for generating low speed frequency modulation signal.Wherein, the input of the output f1 of first carrier generator 141 and the output f2 difference connecting analog switch 143 of the second carrier generator 142.F1 and f2 loads different carrier frequencies respectively, gating is carried out by analog switch 143, the gating of analog switch 143 is controlled by s (t) 1, when s (t) 1 is " 1 ", export carrier frequency f2, when s (t) 1 is " 0 ", export carrier frequency f1, now output v (t) 1 of analog switch 143 is fsk modulated signal (as shown in Figure 5 a).In both f1 and f2, a road loads CF signal, another road does not load CF signal, gating is carried out by analog switch 143, the gating of analog switch 143 is controlled by s (t) 1, when s (t) 1 is " 1 ", export CF signal, when s (t) 1 is " 0 ", do not export CF signal, now output v (t) 1 of analog switch 143 is OOK modulation signal (as shown in Figure 5 b).
Below in conjunction with accompanying drawing 3, the internal structure of low speed frequency demodulator circuit 25 and the interconnection of each functional unit are described further.
Fig. 3 describes a kind of embodiment of low speed frequency demodulator circuit 25, comprise for the high speed business signal in filtering current pulse signal to retain the low-pass filter circuit 251 of low speed monitoring signal, for low speed current signal being converted to the mutual conductance amplifying circuit 252 of low-speed voltage signal, the first band pass filter 253 and the second band pass filter 258 passed through for only allowing characteristic frequency carrier wave, for the first multiplier 254 and the second multiplier 259 of function that two mutual incoherent analog signals realizations are multiplied, for generation of the first local carrier 256 and the second local carrier 257 of local oscillator carrier wave, for filtering higher than cut-off frequency composition to retain the first low pass filter 255 and the second low pass filter 260 of low frequency baseband signal composition, and for recovering the comparison decision device 261 receiving base band supervisory signal, wherein, the output of described low-pass filter circuit 251 is connected with the input of mutual conductance amplifying circuit 252, the output of described mutual conductance amplifying circuit 252 connects the input of the first band pass filter 253 and the input of the second band pass filter 258 simultaneously, output and the output of the first local carrier 256 of described first band pass filter 253 are connected the input of the first multiplier 254 respectively, the output of described first multiplier 254 connects the input of the first low pass filter 255, output and the output of the second local carrier 257 of described second band pass filter 258 are connected the input of the second multiplier 259 respectively, the output of described second multiplier 259 connects the input of the second low pass filter 260, the output of described first low pass filter 255 is connected the input of comparing decision device 261 respectively with the output of the second low pass filter 260.
Current pulse signal I (t) 2 includes high frequency service signal and low frequency pilot signal simultaneously, I (t) 2 is by low-pass filter circuit 251 filtering high frequency service signal composition, only retain low speed monitoring modulation signal I (t) 2 ', low speed monitoring modulation signal I (t) 2 ' is by mutual conductance amplifying circuit 252, low speed current signal is converted to low-speed voltage signal V(t) 2, low-speed voltage signal V(t) 2 be divided into two-way, one tunnel is through the first band pass filter 253, another of first multiplier 254(first multiplier is input as the first local oscillation signal), the input comparing decision device 261 is flowed into after first low pass filter 255, another road is through the second band pass filter 258, another of second multiplier 259(second multiplier is input as the second local oscillation signal), another input comparing decision device 261 is flowed into after second low pass filter 260, relatively decision device 261 finally recovers and receives base band supervisory signal d (t) 2.
It should be noted that, Fig. 3 describe low speed frequency demodulator circuit 25, employing be correlation demodulation mode, need extract carrier information, circuit structure relative complex, advantage is that restituted signal quality is good.For the place that demand on signal quality is not high, also can adopt non-coherent demodulation mode, without the need to extracting carrier information, circuit structure is relatively simple, but signal quality is poorer than coherent demodulation mode.In addition, low speed frequency demodulator circuit 25 block diagram that Fig. 3 describes is the complete circuit structure block diagram of a FSK signal demodulation, if for demodulation OOK signal, circuit structure can simplify, and can remove the second band pass filter 258, second local carrier 257, second multiplier 259 and the second low pass filter 260.
In this programme, described circuit mirror current 22 can adopt mirror current source to produce the road branch current equal with main road size of current, and current sampling circuit also can be adopted to convert main road electric current to voltage signal with main road current in proportion by current/voltage translation circuit.
Below in conjunction with embodiment and Fig. 4, application scenarios of the present invention is described further.
Fig. 4 describes a kind of application scenarios using optical module of the present invention to carry out point-to-point communication.As shown in Figure 4, a kind of optical communication system, include the first transmitting-receiving of optical transceiver module 10, second light mould 20, optical communication network 30, described first optical transceiver module 10 is connected with the second optical transceiver module 20 by optical communication network 30.What the first optical transceiver module 10 in described optical communication system and the second optical transceiver module 20 all adopted is the optical module based on transparent transmission pilot signal in warbled band described above.
As shown in Figure 4, Tx1 is the transmission service signal of the first optical transceiver module 10, s (t) 1 is the transmission base band supervisory signal of the first optical transceiver module 10, Rx1 is the reception service signal of the first optical transceiver module 10, and d (t) 1 is the reception base band supervisory signal of the first optical transceiver module 10; Tx2 is the transmission service signal of the second optical transceiver module 20, s (t) 2 is transmission base band supervisory signal of the second optical transceiver module 20, Rx2 is the reception service signal of the second optical transceiver module 20, and d (t) 2 is reception base band supervisory signal of the second optical transceiver module 20.
The s (t) 1 carrying supervisory information is loaded on the envelope of service signal Tx1 by frequency modulation(FM) by the first optical transceiver module 10, the bearer service signal (as shown in Fig. 5 a, 5b) of the pilot signal information of carrying be modulated into, s (t) 1 and Tx1 share optical cable and channel resource, the common light-receiving port being sent to the second optical transceiver module 20 by exterior light communication network 30, second optical transceiver module 20 carries out demodulation to the modulation signal received, and recovers respectively and receives service signal Rx2 and receive base band supervisory signal d (t) 2.In like manner, the s (t) 2 carrying supervisory information is loaded on the envelope of service signal Tx2 by frequency modulation(FM) by the second optical transceiver module 20, s (t) 2 and Tx2 share optical cable and channel resource, the common light-receiving port being sent to the first optical transceiver module 10 by exterior light communication network 30, first optical transceiver module 10 carries out demodulation to the modulation signal received, and recovers respectively and receives service signal Rx1 and receive base band supervisory signal d (t) 1.
In sum, content disclosed according to the present invention, can accomplish the end in view, the optical module based on transparent transmission pilot signal in warbled band provided, can the transparent transmission difficult problem of cost-effective solution in band supervisory signal, has high industrial utilization.
The described optical module based on transparent transmission pilot signal in warbled band, both can be applicable to design optical transceiver module, also can be applicable to the other products based on the program.
Above-mentioned explanation and accompanying drawing are only for illustration of embodiments of the invention, all those skilled in the art, not departing from the scope of the invention that appended claims limits, still can make a variety of changes the present invention in the form and details, it does not depart from technology of the present invention and spirit.
Claims (5)
1. based on an optical module for transparent transmission pilot signal in warbled band, it is characterized in that: described optical module, comprise transmitting element and receiving element, described transmitting element, comprise the low speed frequency modulation circuit (14) for base band supervisory signal being modulated into low speed frequency modulation signal, for low speed frequency modulation signal is transformed into low speed current modulated drive circuit for laser (13), for load low speed current modulated laser (11), for service signal is generated High-speed Electric pulse signal electric absorption signal modulation circuit (15), for controlling whether to absorb the electroabsorption modulator (12) of the light wave sent by laser (11) by High-speed Electric pulse signal, described receiving element, comprise the light signal for receiving from exterior light network and light signal converted to the avalanche photodide (21) of current signal, for main road current pulse signal being converted to the trsanscondutance amplifier (23) of voltage pulse signal, for recovering the limiting amplifier (24) receiving service signal to voltage pulse signal shaping, for branch current signal being transformed into the circuit mirror current (22) of the current pulse signal proportional with main road current signal, for current pulse signal being demodulated the low speed frequency demodulator circuit (25) receiving base band low speed monitoring signal,
Wherein, described low speed frequency modulation circuit (14) is connected with laser (11) by drive circuit for laser (13), described electric absorption signal modulation circuit (15) is connected with electroabsorption modulator (12), and described laser (11) is connected with electroabsorption modulator (12); A wherein output port of described avalanche photodide (21) is connected with limiting amplifier (24) by trsanscondutance amplifier (23), and another output port of described avalanche photodide (21) is connected with low speed frequency demodulator circuit (25) by circuit mirror current (22).
2. a kind of optical module based on transparent transmission pilot signal in warbled band according to claim 1, it is characterized in that: described low speed frequency modulation circuit (14), comprising for generation of the first carrier generator (141) of frequency modulated carrier and the second carrier generator (142) and the analog switch (143) for exporting low speed frequency modulation signal;
Wherein, output and the output of the second carrier generator (142) of described first carrier generator (141) are connected the input of described analog switch (143) respectively.
3. a kind of optical module based on transparent transmission pilot signal in warbled band according to claim 1, it is characterized in that: described low speed frequency demodulator circuit (25), comprise for the high speed business signal in filtering current pulse signal to retain the low-pass filter circuit (251) of low speed monitoring signal, for low speed current signal being converted to the mutual conductance amplifying circuit (252) of low-speed voltage signal, the first band pass filter (253) passed through for only allowing characteristic frequency carrier wave and the second band pass filter (258), for the first multiplier (254) and second multiplier (259) of function that two mutual incoherent analog signals realizations are multiplied, for generation of the first local carrier (256) and second local carrier (257) of local oscillator carrier wave, for filtering higher than cut-off frequency composition to retain the first low pass filter (255) and second low pass filter (260) of low frequency baseband signal composition, and for recovering the comparison decision device (261) receiving base band supervisory signal,
Wherein, the output of described low-pass filter circuit (251) is connected with the input of mutual conductance amplifying circuit (252), the output of described mutual conductance amplifying circuit (252) connects the input of the first band pass filter (253) and the input of the second band pass filter (258) simultaneously, output and the output of the first local carrier (256) of described first band pass filter (253) are connected the input of the first multiplier (254) respectively, the output of described first multiplier (254) connects the input of the first low pass filter (255), output and the output of the second local carrier (257) of described second band pass filter (258) are connected the input of the second multiplier (259) respectively, the output of described second multiplier (259) connects the input of the second low pass filter (260), the output of described first low pass filter (255) is connected respectively with the output of the second low pass filter (260) compares decision device (261).
4. a kind of optical module based on transparent transmission pilot signal in warbled band according to claim 1, it is characterized in that: described circuit mirror current (22) adopts mirror current source to produce the road branch current equal with main road size of current, or adopt current sampling circuit to convert main road electric current to voltage signal with main road current in proportion by current/voltage translation circuit.
5. an optical communication system, is characterized in that: comprise, the first optical transceiver module (10) and the second optical transceiver module (20), and described first optical transceiver module (10) is connected with the second optical transceiver module (20) by optical communication network (30);
Wherein, described first optical transceiver module (10) and the second optical transceiver module (20) are the optical module described in any one of claim 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510440283.6A CN104967487B (en) | 2015-07-24 | 2015-07-24 | A kind of optical module based on transparent transmission monitoring signal in warbled band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510440283.6A CN104967487B (en) | 2015-07-24 | 2015-07-24 | A kind of optical module based on transparent transmission monitoring signal in warbled band |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104967487A true CN104967487A (en) | 2015-10-07 |
| CN104967487B CN104967487B (en) | 2017-09-22 |
Family
ID=54221442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510440283.6A Active CN104967487B (en) | 2015-07-24 | 2015-07-24 | A kind of optical module based on transparent transmission monitoring signal in warbled band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104967487B (en) |
Cited By (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 |
| CN109495185A (en) * | 2018-11-14 | 2019-03-19 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN110730040A (en) * | 2019-11-19 | 2020-01-24 | 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 |
| CN112087258A (en) * | 2019-06-13 | 2020-12-15 | 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 |
| CN113259013A (en) * | 2021-05-12 | 2021-08-13 | 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090297155A1 (en) * | 2006-08-11 | 2009-12-03 | Weiner Andrew M | Wideband microwave and millimeter wave filters using photonic spectral filtering |
| 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 |
-
2015
- 2015-07-24 CN CN201510440283.6A patent/CN104967487B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090297155A1 (en) * | 2006-08-11 | 2009-12-03 | Weiner Andrew M | Wideband microwave and millimeter wave filters using photonic spectral filtering |
| 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 |
Cited By (12)
| 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 |
| CN109495185A (en) * | 2018-11-14 | 2019-03-19 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN112087258A (en) * | 2019-06-13 | 2020-12-15 | 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 |
| WO2020259382A1 (en) * | 2019-06-26 | 2020-12-30 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN112438027A (en) * | 2019-06-26 | 2021-03-02 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN112438027B (en) * | 2019-06-26 | 2023-11-03 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN110730040A (en) * | 2019-11-19 | 2020-01-24 | 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 |
| 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 |
| CN113259013A (en) * | 2021-05-12 | 2021-08-13 | 希烽光电科技(南京)有限公司 | Single-wavelength 100G long-distance 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104967487B (en) | 2017-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204761443U (en) | In -band passes optical module of supervisory signal thoroughly based on frequency modulation | |
| CN104980225A (en) | Optical module of in-band pass through monitoring signal based on amplitude modulation | |
| CN104967487A (en) | In-band unvarnished transmission monitoring signal optical module based on frequency modulation | |
| CN103051385B (en) | The optical fiber asymmetric full-duplex cut-in method that a kind of wire and wireless merges and system | |
| CN204993356U (en) | In -band passes optical module of supervisory signal thoroughly based on amplitude modulation | |
| CN112532325B (en) | Multi-dimensional multiplexing photon terahertz communication system | |
| CN101715249B (en) | Optical-fiber wireless system for full-duplex communication | |
| CN106375017A (en) | Optical transceiving module based on PAM4 modulation | |
| CN103414516B (en) | Based on two-way wire/wireless mixed light cut-in method and the system of same/heterodyne detection | |
| CN101217316B (en) | An OFDM optical fiber wireless communication method and system based on phase modulator | |
| CN106304420B (en) | Wireless forward transmission system for 5G power multiplexing-oriented analog optical transmission | |
| CN103516429A (en) | W waveband broadband millimeter wave full duplex access method and system based on local oscillation broadcasting | |
| CN112636833B (en) | Uplink and downlink visible light communication link device based on laser | |
| CN105306140A (en) | Networking system for visible light communication and networking method thereof | |
| CN110166136A (en) | The vector millimeter wave generator of light intensity modulator is recommended based on both arms | |
| CN103051375B (en) | Wireless laser communication heterodyne detection system and detection method thereof | |
| CN101714899B (en) | Optical fiber radio communication system | |
| CN113014326A (en) | Optical transceiver module, optical network terminal and communication system | |
| CN102833004A (en) | 100G form-factor pluggable (CFP) optical module with transmission distance larger than 40 kilometers | |
| CN104980219A (en) | Visible light communication system based on FSK modulation and power line carrier | |
| CN101001114A (en) | Full duplex fibre-optical radio communication system of simple structure | |
| CN204967822U (en) | Free space optical communications is tunable to be bare coherent detection OFDM device | |
| CN101136705B (en) | Full optical subcarrier demodulator and method of millimeter wave optical fiber radio uplink | |
| US20130114955A1 (en) | Method and System for Testing Jitter Compatibility | |
| CN106559135A (en) | Based on the information transceiving method of visible light communication, R-T unit and its system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |