CN102547493A - High-speed optical signal wavelength conversion and transmission device - Google Patents
High-speed optical signal wavelength conversion and transmission device Download PDFInfo
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- CN102547493A CN102547493A CN2011104584291A CN201110458429A CN102547493A CN 102547493 A CN102547493 A CN 102547493A CN 2011104584291 A CN2011104584291 A CN 2011104584291A CN 201110458429 A CN201110458429 A CN 201110458429A CN 102547493 A CN102547493 A CN 102547493A
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Abstract
The invention relates to a high-speed optical signal wavelength conversion and transmission device, which comprises a high-speed optical router and a system receiving end. The high-speed optical signal wavelength conversion and transmission device is characterized by comprising a detector/a TIA circuit module, a high-speed electrical signal demultiplexing functional block, a high-speed electrical signal multiplexing functional block, a high-speed electrical signal driving module, a high-speed optical signal modulation functional block and a wavelength tunable laser. According to the technical scheme, the transmission of single channel 40Gbit/s optical signals can be effectively replaced, the range of the optical receiving wavelength includes the whole C-band and the whole L-band in a receiving end, 96 waves in the whole C band are adjustable in a sending end, and 96 channels of 40Gbit/s optical signals can be transmitted in parallel maximally, thus the transmission efficiency of the optical signals is greatly increased.
Description
Technical field
The present invention relates to optical communication field, particularly relate to a kind of high-speed optical signal wavelength Conversion transmitting device.
Background technology
Country is in the development of big force urges unification of three nets at present; The growth of Access Network broadband services and interactive broadband services is swift and violent, and the global of the Internet causes the exchange of these broadband services also must send realization through backbone network, the development that will network along with thing from now on; The volume of transmitted data of backbone network will be increasing; The stage of ripeness is stepped in system's commercialization of 40Gb/s now, and along with the decline of the renewal cost of technology, the application of 40Gb/s system can present development faster.And the monitoring of sampling of the optical information of a certain fixed wave length of reception that at present supervisory control system of high speed signal can only be single can't be satisfied the growth that business datum explosion type in the supervisory control system, so must the efficiency of transmission of raising light signal in supervisory control system.
Summary of the invention
In view of this; Main purpose of the present invention is to provide a kind of high-speed optical signal wavelength Conversion transmitting device; Through technical scheme of the present invention; Substitute the transmission of single channel 40Gbit/s light signal, the light signal that maximum can parallel transmission 96 road 40Gbit/s has increased substantially the efficiency of transmission of light signal.
In order to achieve the above object; Technical scheme of the present invention is achieved in that a kind of high-speed optical signal wavelength Conversion transmitting device; Comprise with high-speed light router and a system receiving terminal, comprise that detector/TIA circuit module, high-speed electrical signals demultiplexing functional block, the multiplexing functional block of high-speed electrical signals, high-speed electrical signals driver module and high-speed optical signal modulation function piece, Wavelength tunable laser constitute; Said high-speed light router passes the 40Gb/s light signal with institute and changes high-speed electrical signals into through detector, and high-speed electrical signals is carried out low noise through the TIA amplifier in the detector amplify; Output to the demultiplexing functional block, the signal of telecommunication is demultiplexed into 16 road 2.5Gb/s signals, and 16 road signals of telecommunication are input to multiplexing functional block synchronously, and be processed into the high-speed electrical signals of the 40Gb/s of one tunnel serial through multiplexing functional block; Be input in the signal of telecommunication driver module, to increase the amplitude of modulation signal; High-speed electrical signals is input to the RF connector of MZ modulator; The while Wavelength tunable laser sends continuous light and is input in the MZ modulator; And process DC automatic bias circuit is controlled the modulator working point; 40Gb/s light signal after the output modulation, pairing wavelength can be regulated control through register; Light signal after the modulation amplifies through EDFA Erbium-Doped Fiber Amplifier, with the decay of compensate for link long distance transmitting optical power; The light signal of multichannel wavelength through the synthetic single fiber transmission of optical multiplexer, improving the efficiency of transmission of link, and is leached the light signal of the required wavelength of system at receiving terminal through the optical demultiplexer in the optical multiplexer, be transported to system receiving terminal.
Said detector also includes the photoelectric current monitoring of PD and the power supply biasing of detector, and mirror current source optical power monitoring module is adopted in said photoelectric current monitoring.
Said clock and data recovery, 16 demultiplexing chips and the frame controller of in multi-functional of demultiplexing, comprising.
Mainly comprise 16 bit multiplex chips in the said multiplexing functional block, remove crooked controller; Said 16 bit multiplex chips are the compatible multiplexers of SONET (Synchronous Optical Network) OC-768; Band CMU (clock multiplier unit); The 16 bit multiplex chips 2.5G parallel data that 16 road SFI-5 are compatible is multiplexed into the 39.8G serial data stream, supports the application of 2.69G to 43.1G simultaneously.
Said high speed signal driver module 50 includes high speed signal amplification driver, power supply biasing module, and a gain loop control circuit module constitutes.
The invention has the beneficial effects as follows after adopting technique scheme: a kind of high-speed optical signal wavelength Conversion transmitting device; Device has the wavelength Conversion that an individual system can be accomplished the 40G light signal of one's own; Through the present technique scheme, can effectively substitute the transmission of single channel 40Gbit/s light signal, at receiving terminal; The light-receiving wave-length coverage covers whole C wave band and L-band; Transmitting terminal whole C wave band 96 ripples are adjustable, and the light signal that maximum can parallel transmission 96 road 40Gbit/s has increased substantially the efficiency of transmission of light signal.
Description of drawings
Fig. 1 is an entire block diagram of the present invention.
Fig. 2 is detector/TIA circuit module figure among the present invention.
Fig. 3 is a high speed signal of telecommunication demultiplexing FBD of the present invention.
Fig. 4 is the multiplexing FBD of the high speed signal of telecommunication of the present invention.
Fig. 5 is high speed signal of telecommunication driver module figure of the present invention.
Fig. 6 is high speed light signal modulation function piece figure of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing and specific embodiment technical scheme of the present invention is described further.
The high-speed optical signal wavelength Conversion transmitting device that the present invention relates to.
As shown in Figure 1, the present invention mainly is made up of the multiplexing functional block of detector/TIA circuit module 20, high-speed electrical signals demultiplexing functional block 30, high-speed electrical signals 40, high-speed electrical signals driver module 50 and high-speed optical signal modulation function piece 60, Wavelength tunable laser 10; Logical keep the conversion of accomplishing photoelectricity light, convert the light of fixed wave length to C-band or any wavelength output of L-band.
As shown in Figure 2, said high-speed light router receives the high-speed electrical signals of 40Gb/s, and the high-speed light router is passed the 40Gb/s light signal through detector, changes high-speed electrical signals into, and high-speed electrical signals is carried out low noise through the TIA amplifier in the detector amplify; Also comprise photoelectric current monitoring and the power supply biasing 202 of PD in the said detector 20, mirror current source optical power monitoring module 201 is adopted in said photoelectric current monitoring; When detector 20 receives the 40G high-speed optical signal, through detector 20, under the incident light effect; Because the right motion of electrons/that light absorption process produces; And form additional electromotive force on the PN junction both sides, thus in closed external circuit, forming photogenerated current, the input optical power of detector 20 can not surpass 3dB; So its PIN surveys the electric current of output only in the nA level; Adopting multistage amplification that the faint signal of telecommunication is amplified to decision circuit can discern normally, requires low noise, high-gain for the TIA amplifier.
As shown in Figure 3, said high-speed electrical signals outputs to demultiplexing functional block 30, and the signal of telecommunication is demultiplexed into 16 road 2.5Gb/s signals; Comprise clock and data recovery 301 in multi-functional 30 of the said demultiplexing; 16 demultiplexing chips 302, frame controller 303, said 16 demultiplexing chips 302 are the 39.8～43.1Gbps serial data bit streams that receive single-ended or difference; Then this data flow is separated into 16 paths; Meet the SFI-5 standard, and line output is that the differential data of 1.2V CML level is right, general electric delivery outlet is supported the direct-current coupling of 1.2V and the AC coupled of 1.8V; The integrated clock and data recovery 301 of a ce circuit in multi-functional 30 of demultiplexing is used for recovered clock and data; When optical data stream converts high-speed electrical signals to and is input to demultiplexing module 30 and recovers data and clock signal through the clock and data recovery 301 of ce circuits through surveying amplifier 20; 16 demultiplexing chips 302 of warp are recycled separates into 16 tunnel reception data/address buss; The first via that receives is write in the buffer of timing again that is associated with RXDATA [15], and last road gets in the buffer of timing again that is associated with RXDATA [0]; Again regularly buffer be connected electric territory regularly and the drift between each road regularly, light territory by more regularly buffer absorb, RXDSC (going outer tiltedly clock signal) wheel duplicates each road signal of launching on the reception data/address bus with changeing; The frame sample generator at first inserts frame head data, comprises 2 A1 (F6 Hex), 2 A2 (28 hex) byte, and the expansion frame head of 4 bytes, and every road RXDATA [X] is taken a sample in turn, and sample length is 8 bytes; Start from RXDATA [15] and end at RXDATA [0], after all data were seen off, a new reference frame just was based upon RXDSC, constantly produced then.
Of Fig. 4,16 tunnel high-speed electrical signals are input to multiplexing functional block 40 synchronously, and are processed into the high-speed electrical signals of the 40Gb/s of one tunnel serial through multiplexing functional block 40; Mainly comprise 16 bit multiplex chips 401 in the multiplexing functional block 40, remove crooked controller 402; Said 16 bit multiplex chips 401 are the compatible multiplexers of SONET (Synchronous Optical Network) OC-768; Band CMU (clock multiplier unit); The 16 bit multiplex chips 401 2.5G parallel data that 16 road SFI-5 are compatible is multiplexed into the 39.8G serial data stream; Support the application of 2.69G to 43.1G simultaneously, the same with the output interface of 16 demultiplexing chips 302, the input interface of 16 bit multiplex chips 401 also is the SFI-5 operating such; From 16 road 2.5Gb/s data-signals of demultiplexing functional block 30 outputs, also have 1 the tunnel to go outer tiltedly clock signal to be input to multiplexing functional block 40 through the loopback plate.Data on TXDATA [15:0] and TXDSC (oblique clock signal outside going) are in the 403 judgement regeneration of (DDR) data recovery unit; Data are written in the buffer relevant with timing then; Again regularly buffer as one group of (FIFOS) first in first out device be connected electric territory regularly with the light territory regularly, the drift between each road by more regularly buffer absorb; Removing crooked controlled function piece 402 is frame head and frame byte among the identification TXDSC, the original position of definite reference data of from TXDATA [X], duplicating; Each road TXDATA [X] passage compares with sampled data successively; Go crooked controlled function to accomplish that copy data and source data carry out pattern match among the TXDSC; TXDATA [X] has just established with the relative time delay of TXDSC like this.Therefore we can confirm the crooked bit number of each passage, through the adjustment delay unit each unit are compensated then, and then are multiplexed into the 40Gb/s high speed signal of serial through 16 bit multiplex chips 401.
As shown in Figure 5, the 40Gb/s high speed signal of serial is input in the high-speed electrical signals driver module 50, to increase the amplitude of modulation signal; Said high speed signal driver module 50 includes one and has the high speed signal amplification driver 501 of three grades of amplifications, the power supply biasing module 502 of this driver, and a gain loop control circuit module 503; When the 40Gb/s of serial high-speed electrical signals must be amplified to certain amplitude; The size of this amplitude is determined by MZMZ modulator 606 half-wave voltage Vpai; And the electric power bias circuit module can be regulated the size of driver output amplitude; Under the different operating temperature, guarantee the stable of modulation signal in order to stablize high-speed driver gain size, this function module design gain loop control 503, through monitoring to output amplitude; Come the gain size of feedback regulation high speed signal amplification driver 501, reach the purpose of gain stabilization.
As shown in Figure 6; High-speed electrical signals is input to the RF connector of the MZ modulator 606 in the high-speed optical signal modulation function piece 60; While Wavelength tunable laser 10 sends continuous light and is input in the MZ modulator 606; And pass through the DC automatic bias circuit modulator working point is controlled, the 40Gb/s light signal after the output modulation, pairing wavelength can be regulated control through register; High-speed optical signal modulation function piece 60 is by Wavelength tunable laser 10 and MZ modulator 606; And the control unit of modulator working point; Said control unit comprises TIA circuit 601, filter amplification circuit 602, error signal comparison circuit 603; Integral compensation circuit 604, low frequency signal produces circuit 605; High-speed electrical signals is input to high speed signal amplification driver 501; The signal amplitude of carrying out after the processing and amplifying is Vpai (half-wave voltage of modulator); This signal is input to the RF connector of MZ modulator 606; Carry out the light signal modulation, the light source of MZ modulator 606 is adjustable Wavelength tunable lasers of whole C wave band 10; And it is luminous from Wavelength tunable laser 10 to the free requirement of MZ modulator 606 output light signals; To in the time of ms level, search out the working point and accomplish FEEDBACK CONTROL; The searching of MZ modulator 606 working points is to be input to high speed signal amplification driver 501 through low frequency signal square wave of low frequency signal generation circuit 605 generations to be superimposed upon on the high speed signal; And be input to MZ modulator 606 together and carry out light modulation; The low frequency signal that is superimposed upon data-signal can reflect in real time that the drift condition of light modulation curve, this control unit are exactly to carry out the purpose that FEEDBACK CONTROL reaches stable operating point to this signal, and the built-in PD of optical phase modulator detects photo-signal; Comprise the low frequency signal of required control in this signal, also comprised the high-frequency signal part; The photoelectric current that PD comes out changes into the voltage signal of amplification through TIA 601; This voltage signal has comprised that the low frequency part of required control also has the composition of high-frequency noise and direct current; So at first require to shelve the composition of direct current; Leach needed low frequency part; This amplifying signal leaches low frequency signal through filter amplification circuit 602 and the former low frequency signal f that is input to modulator carries out the comparison of phase place, obtains an error signal through error signal comparison circuit 603, and integral compensation circuit 604 is regulated this error signal up to best effort point voltage that the stable DC signal is exactly this modulator of output; This time, whole device was accomplished light wavelength conversion, the light signal of output high speed 40Gb/s.
Light signal after the said modulation amplifies through EDFA Erbium-Doped Fiber Amplifier 70, with the decay of compensate for link long distance transmitting optical power; The light signal of multichannel wavelength is transmitted through optical multiplexer/demodulation multiplexer 80 synthetic single fibers; To improve the efficiency of transmission of link; And the demodulation multiplexer in receiving terminal process optical multiplexer/demodulation multiplexer 80 leaches the light signal of the required wavelength of system; Accomplish the demultiplexing of multiplexer channel light, be transported to receiving terminal.
The above is merely preferable possible embodiments of the present invention, is not in order to limit scope of the present invention.
Claims (6)
1. high-speed optical signal wavelength Conversion transmitting device; Comprise with high-speed light router and a system receiving terminal; It is characterized in that, comprise that detector/TIA circuit module, high-speed electrical signals demultiplexing functional block, the multiplexing functional block of high-speed electrical signals, high-speed electrical signals driver module and high-speed optical signal modulation function piece, Wavelength tunable laser constitute; Said high-speed light router passes the 40Gb/s light signal with institute and changes high-speed electrical signals into through detector, and high-speed electrical signals is carried out low noise through the TIA amplifier in the detector amplify; Output to the demultiplexing functional block, the signal of telecommunication is demultiplexed into 16 road 2.5Gb/s signals, and 16 road signals of telecommunication are input to multiplexing functional block synchronously, and be processed into the high-speed electrical signals of the 40Gb/s of one tunnel serial through multiplexing functional block; Be input in the signal of telecommunication driver module, to increase the amplitude of modulation signal; High-speed electrical signals is input to the RF connector of MZ modulator; The while Wavelength tunable laser sends continuous light and is input in the MZ modulator; And process DC automatic bias circuit is controlled the modulator working point; 40Gb/s light signal after the output modulation, pairing wavelength can be regulated control through register; Light signal after the modulation amplifies through EDFA Erbium-Doped Fiber Amplifier, with the decay of compensate for link long distance transmitting optical power; The light signal of multichannel wavelength through the synthetic single fiber transmission of optical multiplexer, improving the efficiency of transmission of link, and is leached the light signal of the required wavelength of system at receiving terminal through the optical demultiplexer in the optical multiplexer, be transported to system receiving terminal.
2. high-speed optical signal wavelength Conversion transmitting device according to claim 1 is characterized in that, said detector also includes the photoelectric current monitoring of PD and the power supply biasing of detector, and mirror current source optical power monitoring module is adopted in said photoelectric current monitoring.
3. high-speed optical signal wavelength Conversion transmitting device according to claim 1 is characterized in that, said clock and data recovery, 16 demultiplexing chips and the frame controller of in multi-functional of demultiplexing, comprising.
4. high-speed optical signal wavelength Conversion transmitting device according to claim 1 is characterized in that, mainly comprises 16 bit multiplex chips in the said multiplexing functional block, removes crooked controller; Said 16 bit multiplex chips are the compatible multiplexers of SONET (Synchronous Optical Network) OC-768; Band CMU (clock multiplier unit); The 16 bit multiplex chips 2.5G parallel data that 16 road SFI-5 are compatible is multiplexed into the 39.8G serial data stream, supports the application of 2.69G to 43.1G simultaneously.
5. high-speed optical signal wavelength Conversion transmitting device according to claim 1 is characterized in that said high speed signal driver module includes high speed signal amplification driver, power supply biasing module, and a gain loop control circuit module constitutes.
6. high-speed optical signal wavelength Conversion transmitting device according to claim 1 is characterized in that high-speed optical signal modulation function piece is by Wavelength tunable laser and MZ modulator; And the control unit of modulator working point; Said control unit comprises the TIA circuit, filter amplification circuit, error signal comparison circuit; The integral compensation circuit, low frequency signal produces circuit.
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| CN2011104584291A CN102547493A (en) | 2011-12-31 | 2011-12-31 | High-speed optical signal wavelength conversion and transmission device |
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Cited By (6)
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| CN103023577A (en) * | 2012-12-20 | 2013-04-03 | 武汉电信器件有限公司 | 40Gb/s optical receiving module |
| WO2015120598A1 (en) * | 2014-02-13 | 2015-08-20 | 华为技术有限公司 | Wavelength converter |
| CN105743568A (en) * | 2014-12-08 | 2016-07-06 | 上海贝尔股份有限公司 | Fiber link detection method and device in PON system |
| CN107864019A (en) * | 2017-11-13 | 2018-03-30 | 安徽工程大学 | A kind of distributed energy storage power conversion system using quantum communications |
| CN109845150A (en) * | 2016-10-26 | 2019-06-04 | 华为技术有限公司 | Transmission method, device and the wavelength-selective switches of optical signal |
| CN116073907A (en) * | 2023-03-06 | 2023-05-05 | 中国电子科技集团公司第二十九研究所 | Broadband radio frequency signal copying device and method based on coherent microwave photons |
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Cited By (9)
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| CN109845150A (en) * | 2016-10-26 | 2019-06-04 | 华为技术有限公司 | Transmission method, device and the wavelength-selective switches of optical signal |
| CN107864019A (en) * | 2017-11-13 | 2018-03-30 | 安徽工程大学 | A kind of distributed energy storage power conversion system using quantum communications |
| CN116073907A (en) * | 2023-03-06 | 2023-05-05 | 中国电子科技集团公司第二十九研究所 | Broadband radio frequency signal copying device and method based on coherent microwave photons |
| CN116073907B (en) * | 2023-03-06 | 2023-06-16 | 中国电子科技集团公司第二十九研究所 | Broadband radio frequency signal copying device and method based on coherent microwave photons |
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Application publication date: 20120704 |