CN102427389A - Bidirectional working optical-electrical-optical repeater - Google Patents
Bidirectional working optical-electrical-optical repeater Download PDFInfo
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- CN102427389A CN102427389A CN2011102814890A CN201110281489A CN102427389A CN 102427389 A CN102427389 A CN 102427389A CN 2011102814890 A CN2011102814890 A CN 2011102814890A CN 201110281489 A CN201110281489 A CN 201110281489A CN 102427389 A CN102427389 A CN 102427389A
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Abstract
To solve the problems that OEO (Online Editing Object) repeaters in the prior art only perform unidirectional work, or cannot adapt to GPON (Gigabit-Capable PON)/EPON (Ethernet Passive Optical Network) utilization requirements due to completion of regenerative amplification of downlink continuous optical signals or completion of regenerative amplification of uplink sudden optical signals, the invention provides a bidirectional working optical-electrical-optical repeater which comprises two optical wavelength division multiplexers, two photoelectric receivers and two electro-optical transmitters; the optical wavelength division multiplexer 1 is connected with an optical network unit OLT (Optical Line Terminal) optical interface, the photoelectric receiver 1 and the electro-optical transmitter 2; and the optical wavelength division multiplexer 2 is connected with the OLT ONU (Optical Network Unit) optical interface, the photoelectric receiver 1 and the electro-optical transmitter 2. The bidirectional working optical-electrical-optical repeater provided by the invention has the advantages that the regenerative amplification of downlink continuous 2.5 Gbps optical signals and uplink sudden 1.25Gbps optical signals can be finished simultaneously; optical performance and electrical performance satisfy GPON/EPON optical network standards; and the bidirectional working optical-electrical-optical repeater can be widely applied to GPON/EPON optical networks.
Description
Invention field
The present invention relates to optical signal repeater device in the communication system, specially refer to the light-electricity-optical repeater of two-way operation in the communication system.
Background technology
Along with the communication technology constantly develops; Digital subscriber line DSL broadband access method with the copper cash transmission can't satisfy the application development requirement; The passive optical network PON of high bandwidth, high reliability and several no maintenance costs (being designated hereinafter simply as PON) becomes broadband access mainstream technology scheme gradually; Become the developing direction that industry is generally acknowledged, the strategy of " the copper matting advances " is all carried out in communication and service field in countries in the world, and the FTTH industrial chain that formed that Fiber to the home.Yet the transmission of light signal in optical fiber can produce loss equally, after long Distance Transmission, can produce decay, adopts repeater to increase the distance of Optical Fiber Transmission usually.So-called repeater is the device that is similar to one type of force (forcing) pump, when the attenuated optical signal in the optical fiber adopts repeater that it is carried out regenerative amplification with regard to needs after to a certain degree, makes it can be transferred to farther distance.In addition, repeater can also merge different transmission rates, makes each network segment can use different traffic rates.Have, repeater can also play the effect of " divider wall " again, when network breaks down, generally only influences indivedual network segments, has improved the reliability of the whole network operation.
Gigabit-capable Passive Optical Network GPON (being designated hereinafter simply as GPON)/ethernet passive optical network EPON (being designated hereinafter simply as EPON) is two kinds of standards of EPON; In the GPON/EPON optical-fiber network, comprise one tunnel descending continuous light signal and go burst luminous signal on the way; Descending continuous light signal operation wavelength is 1490nm, operating rate 2.5Gbps; Uplink burst light signal operation wavelength is 1310nm, operating rate 1.25Gbps.Usually, adopt image intensifer OA optical-fiber network to be carried out the gain of light and amplify, but this type image intensifer often costs an arm and a leg, power consumption high as repeater.Also have one type of light-electricity-light OEO (being designated hereinafter simply as OEO) repeater, this type of repeater converts the light signal that receives into the signal of telecommunication, after amplifying, converts light signal again into.But prior art OEO repeater mostly can only one-way only operation, perhaps accomplishes the regenerative amplification of descending continuous light signal, perhaps accomplishes the regenerative amplification of uplink burst light signal, can't adapt to the instructions for use of GPON/EPON optical-fiber network.
Summary of the invention
Mostly can only one-way only operation for solving prior art OEO repeater; Perhaps accomplish the regenerative amplification of descending continuous light signal; Perhaps accomplish the regenerative amplification of uplink burst light signal; Can't adapt to problems such as GPON/EPON optical-fiber network instructions for use, the present invention proposes a kind of photoelectricity optical repeater of two-way operation.Light-the electricity of two-way operation of the present invention-optical repeater comprises two light wavelength division multiplexings, two photelectric receivers and two electric light transmitters; Light wavelength division multiplexing 1 is connected with electric light transmitter 2 with light network unit OLT light mouth, photelectric receiver 1; Light wavelength division multiplexing 2 connects and is connected with electric light transmitter 2 with ONT Optical Network Terminal ONU light mouth, photelectric receiver 1; Adopt unified clock between photelectric receiver 1, photelectric receiver 2, electric light transmitter 1 and the electric light transmitter 2; Wherein,
Light wavelength division multiplexing 1 solves the 1490nm optical signal transmission and gives photelectric receiver 1; The opto-electronic conversion that photelectric receiver 1 is accomplished 2.5Gbps continuous light signal; And the continuous electric signal carried out being transferred to electric light transmitter 1 after regenerative amplification is handled; Electric light transmitter 1 is accomplished the electric light conversion to 2.5Gbps continuous electric signal, output continuous light signal;
Light wavelength division multiplexing 2 solves the 1310nm optical signal transmission and gives photelectric receiver 2; The opto-electronic conversion that photelectric receiver 2 is accomplished the 1.25Gbps burst luminous signal; And the signal of telecommunication that will happen suddenly carries out being transferred to electric light transmitter 2 after regenerative amplification is handled; Electric light transmitter 2 is accomplished the electric light conversion to the 1.25Gbps burst signal of telecommunication, output burst luminous signal.
Further, the operation wavelength of the light wavelength division multiplexing 1 of the photoelectricity optical repeater of two-way operation of the present invention is 1490nm ± 10nm, and the operation wavelength of light wavelength division multiplexing 2 is 1310nm ± 10nm, and two wavelength intervals are from degree >=45dB.
Further, the minimum input optical power of the photelectric receiver 1 of the photoelectricity optical repeater of two-way operation of the present invention≤-28dBm, maximum input optical power≤-10dBm, operation wavelength is 1490nm; The minimum input optical power of photelectric receiver 2≤-28dBm, maximum input optical power≤-10dBm, burst time of reception≤40ns, operation wavelength is 1310nm.
Further, the minimum Output optical power of the electric light transmitter 1 of the photoelectricity optical repeater of two-way operation of the present invention>=+2dBm, maximum Output optical power≤+ 5dBm, operation wavelength is 1490nm; The minimum Output optical power of electric light transmitter 2>=+1.5dBm, maximum Output optical power≤+ 5dBm, burst transmitting time≤10ns, operation wavelength is 1310nm.
Further, the photoelectricity optical repeater of two-way operation of the present invention carries out regenerative amplification to the signal of telecommunication and handles and to comprise: amplify (re-amplifying), shaping again (re-shaping) and regularly (re-timing) processing more again.
The useful technique effect of the photoelectricity optical repeater of two-way operation of the present invention is the regenerative amplification that can accomplish descending continuous 2.5Gbps light signal and uplink burst 1.25Gbps light signal simultaneously; Optical characteristics and electrology characteristic satisfy the GPON/EPON optical network standards; And; Have low receiving sensitivity (≤-28dBm) with high power output (>=+1.5dBm), the uplink burst light signal burst time little (≤50ns), optical fiber characteristics such as transmitting two paths light signal, thermal adaptability be strong simultaneously.Can be widely used in the GPON/EPON optical-fiber network.
Description of drawings
The structural representation of the photoelectricity optical repeater of accompanying drawing 1 two-way operation of the present invention.
Below in conjunction with accompanying drawing and specific embodiment the photoelectricity optical repeater of inventing two-way operation is further described.
Embodiment
The structural representation of the photoelectricity optical repeater of accompanying drawing 1 two-way operation of the present invention can know that by figure the photoelectricity optical repeater of two-way operation of the present invention comprises two light wavelength division multiplexings, two photelectric receivers and two electric light transmitters; Light wavelength division multiplexing 1 is connected with electric light transmitter 2 with light network unit OLT light mouth, photelectric receiver 1; Light wavelength division multiplexing 2 connects and is connected with electric light transmitter 2 with ONT Optical Network Terminal ONU light mouth, photelectric receiver 1; Adopt unified clock between photelectric receiver 1, photelectric receiver 2, electric light transmitter 1 and the electric light transmitter 2; Wherein,
Light wavelength division multiplexing 1 solves the 1490nm optical signal transmission and gives photelectric receiver 1; The opto-electronic conversion that photelectric receiver 1 is accomplished 2.5Gbps continuous light signal; And the continuous electric signal carried out being transferred to electric light transmitter 1 after regenerative amplification is handled; Electric light transmitter 1 is accomplished the electric light conversion to 2.5Gbps continuous electric signal, output continuous light signal;
Light wavelength division multiplexing 2 solves the 1310nm optical signal transmission and gives photelectric receiver 2; The opto-electronic conversion that photelectric receiver 2 is accomplished the 1.25Gbps burst luminous signal; And the signal of telecommunication that will happen suddenly carries out being transferred to electric light transmitter 2 after regenerative amplification is handled; Electric light transmitter 2 is accomplished the electric light conversion to the 1.25Gbps burst signal of telecommunication, output burst luminous signal.
Further, the operation wavelength of the light wavelength division multiplexing of the photoelectricity optical repeater of two-way operation of the present invention is respectively 1490nm ± 10nm and 1310nm ± 10nm, and two wavelength intervals are from degree >=45dB.
Further, the minimum input optical power of the photelectric receiver 1 of the photoelectricity optical repeater of two-way operation of the present invention≤-28dBm, maximum input optical power≤-10dBm, operation wavelength is 1490nm; The minimum input optical power of photelectric receiver 2≤-28dBm, maximum input optical power≤-10dBm, burst time of reception≤40ns, operation wavelength is 1310nm.
Further, the minimum Output optical power of the electric light transmitter 1 of the photoelectricity optical repeater of two-way operation of the present invention>=+2dBm, maximum Output optical power≤+ 5dBm, operation wavelength is 1490nm; The minimum Output optical power of electric light transmitter 2>=+1.5dBm, maximum Output optical power≤+ 5dBm, burst transmitting time≤10ns, operation wavelength is 1310nm.
Further, the photoelectricity optical repeater of two-way operation of the present invention carries out regenerative amplification to the signal of telecommunication and handles and to comprise: amplify (re-amplifying), shaping again (re-shaping) and regularly (re-timing) processing more again.
The useful technique effect of the photoelectricity optical repeater of two-way operation of the present invention is the regenerative amplification that can accomplish descending continuous 2.5Gbps light signal and uplink burst 1.25Gbps light signal simultaneously; Optical characteristics and electrology characteristic satisfy the GPON/EPON optical network standards; And; Have low receiving sensitivity (≤-28dBm) with high power output (>=+1.5dBm), the uplink burst light signal burst time little (≤50ns), optical fiber characteristics such as transmitting two paths light signal, thermal adaptability be strong simultaneously.Can be widely used in the GPON/EPON optical-fiber network.
Claims (5)
1. light-the electricity of a two-way operation-optical repeater, it is characterized in that: this light-electricity-optical repeater comprises two light wavelength division multiplexings, two photelectric receivers and two electric light transmitters; Light wavelength division multiplexing 1 is connected with electric light transmitter 2 with light network unit OLT light mouth, photelectric receiver 1; Light wavelength division multiplexing 2 connects and is connected with electric light transmitter 2 with ONT Optical Network Terminal ONU light mouth, photelectric receiver 1; Adopt unified clock between photelectric receiver 1, photelectric receiver 2, electric light transmitter 1 and the electric light transmitter 2; Wherein:
Light wavelength division multiplexing 1 solves the 1490nm optical signal transmission and gives photelectric receiver 1; The opto-electronic conversion that photelectric receiver 1 is accomplished 2.5Gbps continuous light signal; And the continuous electric signal carried out being transferred to electric light transmitter 1 after regenerative amplification is handled; Electric light transmitter 1 is accomplished the electric light conversion to 2.5Gbps continuous electric signal, output continuous light signal;
Light wavelength division multiplexing 2 solves the 1310nm optical signal transmission and gives photelectric receiver 2; The opto-electronic conversion that photelectric receiver 2 is accomplished the 1.25Gbps burst luminous signal; And the signal of telecommunication that will happen suddenly carries out being transferred to electric light transmitter 2 after regenerative amplification is handled; Electric light transmitter 2 is accomplished the electric light conversion to the 1.25Gbps burst signal of telecommunication, output burst luminous signal.
2. according to the light-electricity-optical repeater of the said two-way operation of claim 1, it is characterized in that: the operation wavelength of light wavelength division multiplexing 1 is 1490nm ± 10nm, and the operation wavelength of light wavelength division multiplexing 2 is 1310nm ± 10nm, and two wavelength intervals are from degree >=45dB.
3. according to the light-electricity-optical repeater of the said two-way operation of claim 1, it is characterized in that: the minimum input optical power of photelectric receiver 1≤-28dBm, maximum input optical power≤-10dBm, operation wavelength is 1490nm; The minimum input optical power of photelectric receiver 2≤-28dBm, maximum input optical power≤-10dBm, burst time of reception≤40ns, operation wavelength is 1310nm.
4. according to the light-electricity-optical repeater of the said two-way operation of claim 1, it is characterized in that: the minimum Output optical power of electric light transmitter 1>=+2dBm, maximum Output optical power≤+ 5dBm, operation wavelength is 1490nm; The minimum Output optical power of electric light transmitter 2>=+1.5dBm, maximum Output optical power≤+ 5dBm, burst transmitting time≤10ns, operation wavelength is 1310nm.
5. according to the light-electricity-optical repeater of the said two-way operation of claim 1, it is characterized in that: the signal of telecommunication is carried out regenerative amplification handle and to comprise: amplify again, shaping and Timing Processing more again.
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| CN201110281489.0A CN102427389B (en) | 2011-09-21 | 2011-09-21 | Bidirectional working optical-electrical-optical repeater |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103516431A (en) * | 2012-06-26 | 2014-01-15 | 中兴通讯股份有限公司 | Photoelectric light repeater, long-distance box, and processing method thereof for uplink/downlink optical signal |
| CN103516433A (en) * | 2012-06-26 | 2014-01-15 | 中兴通讯股份有限公司 | Photoelectric optical repeater, long-distance box and method for processing uplink/downlink optical signal |
| CN104253651A (en) * | 2014-10-13 | 2014-12-31 | 国家电网公司 | 10 Gigabit burst mode optical amplifier based on photo-electric optical regeneration |
| CN104579480A (en) * | 2015-01-05 | 2015-04-29 | 上海欣诺通信技术有限公司 | Optical signal amplification device of EPON link |
| CN105262545A (en) * | 2015-11-17 | 2016-01-20 | 天津大学 | Optical repeater for signal enhancement |
| CN105634611A (en) * | 2016-01-08 | 2016-06-01 | 华为技术有限公司 | Optical module and signal processing method |
| CN106130648A (en) * | 2016-07-07 | 2016-11-16 | 长沙凌峰科技开发有限公司 | Intelligence bidirectional relay system and channel control method thereof |
| CN106230513A (en) * | 2016-07-29 | 2016-12-14 | 陈铭 | A kind of novel optical fiber transceiver module |
| CN111654351A (en) * | 2019-07-01 | 2020-09-11 | 谷歌有限责任公司 | Green renewable energy efficient networks |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103516433B (en) * | 2012-06-26 | 2017-07-11 | 中兴通讯股份有限公司 | A kind of photoelectricity optical repeater, length are away from box and the processing method to upper and lower traveling optical signal |
| CN103516433A (en) * | 2012-06-26 | 2014-01-15 | 中兴通讯股份有限公司 | Photoelectric optical repeater, long-distance box and method for processing uplink/downlink optical signal |
| CN103516431A (en) * | 2012-06-26 | 2014-01-15 | 中兴通讯股份有限公司 | Photoelectric light repeater, long-distance box, and processing method thereof for uplink/downlink optical signal |
| CN103516431B (en) * | 2012-06-26 | 2018-09-14 | 南京中兴软件有限责任公司 | Photoelectricity optical repeater, the long processing method away from box and its to upper and lower traveling optical signal |
| CN104253651A (en) * | 2014-10-13 | 2014-12-31 | 国家电网公司 | 10 Gigabit burst mode optical amplifier based on photo-electric optical regeneration |
| CN104579480A (en) * | 2015-01-05 | 2015-04-29 | 上海欣诺通信技术有限公司 | Optical signal amplification device of EPON link |
| CN105262545A (en) * | 2015-11-17 | 2016-01-20 | 天津大学 | Optical repeater for signal enhancement |
| CN105262545B (en) * | 2015-11-17 | 2017-07-25 | 天津大学 | A kind of optical repeater for signal enhancing |
| CN105634611A (en) * | 2016-01-08 | 2016-06-01 | 华为技术有限公司 | Optical module and signal processing method |
| CN109981175A (en) * | 2016-01-08 | 2019-07-05 | 华为技术有限公司 | The method of optical module and signal processing |
| CN105634611B (en) * | 2016-01-08 | 2019-09-03 | 华为技术有限公司 | The method of optical module and signal processing |
| CN109981175B (en) * | 2016-01-08 | 2021-10-01 | 华为技术有限公司 | Optical module and signal processing method |
| CN106130648A (en) * | 2016-07-07 | 2016-11-16 | 长沙凌峰科技开发有限公司 | Intelligence bidirectional relay system and channel control method thereof |
| CN106130648B (en) * | 2016-07-07 | 2018-08-17 | 长沙凌峰科技开发有限公司 | Intelligent bidirectional relay system and its channel control method |
| CN106230513A (en) * | 2016-07-29 | 2016-12-14 | 陈铭 | A kind of novel optical fiber transceiver module |
| CN111654351A (en) * | 2019-07-01 | 2020-09-11 | 谷歌有限责任公司 | Green renewable energy efficient networks |
| CN111654351B (en) * | 2019-07-01 | 2023-02-14 | 谷歌有限责任公司 | Green renewable energy efficient networks |
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