CN103516433A - Photoelectric optical repeater, long-distance box and method for processing uplink/downlink optical signal - Google Patents

Photoelectric optical repeater, long-distance box and method for processing uplink/downlink optical signal Download PDF

Info

Publication number
CN103516433A
CN103516433A CN201210213118.3A CN201210213118A CN103516433A CN 103516433 A CN103516433 A CN 103516433A CN 201210213118 A CN201210213118 A CN 201210213118A CN 103516433 A CN103516433 A CN 103516433A
Authority
CN
China
Prior art keywords
signal
optical signal
uplink
downlink
olt
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
Application number
CN201210213118.3A
Other languages
Chinese (zh)
Other versions
CN103516433B (en
Inventor
张锡芳
付志明
徐继东
刘欣
张德智
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou Nuclear Run Light Energy Co., Ltd.
Original Assignee
ZTE Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to CN201210213118.3A priority Critical patent/CN103516433B/en
Publication of CN103516433A publication Critical patent/CN103516433A/en
Application granted granted Critical
Publication of CN103516433B publication Critical patent/CN103516433B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The present invention discloses a photoelectric optical repeater, a long-distance box and a method for processing uplink/downlink optical signals, wherein the method mainly comprises the following steps: performing reshaping and reamplifying on uplink/downlink optical signals by the photoelectric optical repeater in the long-distance box, outputting a reshaped and reamplified downlink optical signal to a 1:N coupler in the long-distance box, dividing the received downlink optical signal by the 1:N coupler and outputting to splitters which are connected with the 1:N coupler, and combining the uplink optical signals of the splitters to one path. On one hand, the photoelectric optical repeater in the long-distance box respectively performs reshaping and reamplifying on the uplink/downlink signal and outputs the downlink optical signal after reshaping and reamplifying, thereby prolonging transmission distance of an optical signal; and on the other hand, loss of the 1:N coupler in the long-distance box is smaller, thereby creating possibility of enlarging the splitting ratio in the PON. Therefore, the long-distance box of the invention enlarges the splitting ratio in the PON under a precondition that long-distance transmission of the optical signal is ensured.

Description

A kind of photoelectricity optical repeater, long apart from box and the processing method to up-downgoing light signal
Technical field
The present invention relates to light access technology field, relate in particular to a kind of photoelectricity optical repeater, long apart from box and the processing method to up-downgoing light signal.
Background technology
Under the overall background of global IT application, broadband access development rapidly.Optical fiber access (Fiber-to-the-x, FTTx) construction mode has significantly reduced the construction cost of broadband access network, and with lower cost, has realized the bandwidth lifting of Access Network, and the propelling of the integration of three networks is again for the development of FTTx has increased powerful power.
Along with the propelling of FTTx networking, operator urgently wishes to reduce FTTx network construction cost and O&M cost, large capacity, few office be the developing direction of Future Access Network.
EPON (Passive Optical Network, PON) technology is a kind of optical fiber access technology of point-to-multipoint.The conventional network of division multiplexing passive optical network sometimes (Time Division Multiplexing PON, TDM-PON) and time-division wavelength-division mixed multiplexing passive optical network (Hybird PON, H-PON).
In TDM-PON, system up-downgoing all adopts single wavelength, and to uplink optical signal, each user uses different time slots to transmit, and to downlink optical signal, adopts the forms of broadcasting to transmit.Fig. 1 is existing TDM-PON structural representation, comprise: optical line terminal (Optical Line Terminal, OLT), optical network unit (Optical Network Unit, ONU), repeater (Mid-Span Extender) and optical splitter (splitter).
Conventionally, an OLT connects a plurality of ONU by a repeater and an optical splitter and forms point-to-multipoint structure, shown in Fig. 1 is that 4 OLT connect 4 optical splitters by 4 repeaters respectively, the structural representation of 4 Optical Distribution Networks (Optical Distribution Network, ODN) that form.
In TDM-PON structural representation shown in Fig. 1, on the one hand, for uplink optical signal, the power of the uplink optical signal of ONU transmitting is stipulated within limits; On the other hand, the Insertion Loss of optical splitter is directly proportional to the splitting ratio of himself, and splitting ratio is larger, Insertion Loss is larger, therefore, this has just limited the transmission range of light signal, realizes large splitting ratio if will guarantee, the transmission range of light signal will shorten, if guarantee, realize the long apart from transmission of light signal, splitting ratio will reduce, in the situation that light splitting is smaller, for the more user of load, need to set a fairly large number of PON port.Yet the PON port number in OLT is limited, want newly-increased PON port, just need to increase OLT newly, utilize the PON port of newly-increased OLT to set up the ODN of a greater number.And newly-increased OLT and the ODN that sets up a greater number will increase networking cost and O&M cost.
In addition, in the TDM-PON structure shown in Fig. 1, the complex structure of repeater, realizes difficulty large.
In H-PON, system adopts the different light wave of wavelength to carry out the transmission of light signal, adopts again time-multiplexed mode to carry out the transmission of light signal below each wavelength.Fig. 2 is the composition structural representation of existing H-PON, comprising: mixed light line terminal (Hybrid OLT, H-OLT), repeater (Mid-Span Extender), mixed optical network unit (Hybrid ONU, H-ONU) and optical splitter.Wherein, H-OLT couples together a plurality of of this locality (now claiming a plurality of described PON ports and a multiplexing demultiplexing device that is connected them jointly to form a H-PON port of H-OLT) by local multiplexing demultiplexing device for receiving and send the PON port of the light signal of different wave length, realization is communicated by letter with repeater.In above-mentioned H-PON, also exist and the similar problem of TDM-PON structure.
In sum, in current passive optical network technique, exist if guarantee to realize the long in the situation of transmission of light signal, the problem that light splitting is smaller.
Summary of the invention
The embodiment of the present invention provides a kind of photoelectricity optical repeater, complicated in order to solve repeater of the prior art, realizes the problem that difficulty is large.
An optical repeater, described photoelectricity optical repeater comprises: ONU transceiver and OLT transceiver;
Described ONU transceiver is exported to OLT transceiver after the downlink optical signal of reception being carried out to opto-electronic conversion and amplifying shaping more again, and the uplink electrical signals from OLT transceiver is carried out exporting after electric light conversion;
Described OLT transceiver, for the downlink electrical signal of ONU transceiver output is carried out exporting after electric light conversion, and exports to ONU transceiver after the uplink optical signal of reception is carried out to opto-electronic conversion and amplifies shaping more again.
Photoelectricity optical repeater in the embodiment of the present invention, consists of ONU transceiver and OLT transceiver, because each transceiver function is well defined, therefore, simple in structure, more easily realizes.
The embodiment of the present invention also provides a kind of and has grown apart from box and the processing method to up-downgoing light signal, in order to solve in PON, guarantee the long in the situation of transmission of light signal, the problem that light splitting is smaller.
Apart from a box, described length comprises apart from box: photoelectricity optical repeater and 1:N coupler, and described N is greater than 1 positive integer;
Described photoelectricity optical repeater, for the downlink optical signal from optical line terminal OLT being carried out to shaping again and exporting to 1:N coupler after amplification again, carries out the uplink optical signal from 1:N coupler shaping again and after amplification, exports to OLT again;
Described 1:N coupler, for the downlink optical signal of the output of photoelectricity optical repeater is divided into N road, and export to respectively N the optical splitter being connected with self, and after being coupled as to a road, the uplink optical signal of each optical splitter output being connected with self exports to photoelectricity optical repeater.
Utilize above-mentioned length apart from box the processing method to uplink optical signal, described method comprises:
1:N coupler, when the uplink optical signal receiving from each coupled optical splitter, is exported to photoelectricity optical repeater after the uplink optical signal of each optical splitter output is coupled as to a road;
Photoelectricity optical repeater carries out shaping again and after amplification, exports to OLT again the uplink optical signal of 1:N coupler output.
Utilize above-mentioned length apart from box the processing method to downlink optical signal, described method comprises:
Photoelectricity optical repeater when the downlink optical signal receiving from optical line terminal OLT, this downlink optical signal is carried out to shaping again and amplify again after export to 1:N coupler;
1:N coupler is divided into N road by the downlink optical signal of the output of photoelectricity optical repeater, and exports to respectively N the optical splitter being connected with self.
Apart from a box, described length comprises apart from box: the first multiplexing demultiplexing device, the second multiplexing demultiplexing device, 1:N coupler and n photoelectricity optical repeater, and described N is greater than 1 positive integer, and described n is more than or equal to 2 positive integer;
Described the first multiplexing demultiplexing device, for the downlink optical signal from H-OLT being decomposed into the downlink optical signal on m road, and export to respectively m photoelectricity optical repeater, and the uplink optical signal from photoelectricity optical repeater is synthesized to traveling optical signal on the way send to H-OLT, wherein, in the downlink optical signal on described m road, the wavelength of light wave that carries every road downlink optical signal is different, and described m is greater than 1 and be less than or equal to the positive integer of n;
Described photoelectricity optical repeater, for the downlink optical signal from the first multiplexing demultiplexing device being carried out to shaping again and exporting to the second multiplexing demultiplexing device after amplification again, and the uplink optical signal from the second multiplexing demultiplexing device is carried out to shaping again and after amplification, exports to the first multiplexing demultiplexing device again;
Described the second multiplexing demultiplexing device, for after will being combined into a road downlink optical signal from photoelectricity optical repeater downlink optical signal, export to 1:N coupler, and the uplink optical signal from 1:N coupler is decomposed into k road uplink optical signal, and export to respectively k photoelectricity optical repeater, wherein, in the uplink optical signal of described k road, the wavelength of light wave that carries every road uplink optical signal is different, and described k is greater than 1 and be less than or equal to the positive integer of n;
Described 1:N coupler, for the downlink optical signal from the second multiplexing demultiplexing device is divided into N road, and export to respectively N the optical splitter being connected with self, and after being coupled as to a road, the uplink optical signal of each optical splitter output being connected with self exports to the second multiplexing demultiplexing device.
Utilize above-mentioned length apart from box the processing method to uplink optical signal, described method comprises:
1:N coupler, when the uplink optical signal receiving from each coupled optical splitter, is exported to the second multiplexing demultiplexing device after the uplink optical signal of each optical splitter is coupled as to a road;
The second multiplexing demultiplexing device is decomposed into k road uplink optical signal by carrying light signal in the uplink optical signal of 1:N coupler output, and export to respectively k photoelectricity optical repeater, wherein, in the uplink optical signal of described k road, the wavelength of light wave that carries every road uplink optical signal is different, and described k is greater than 1 and be less than or equal to the positive integer of n;
K photoelectricity optical repeater carries out shaping again and after amplification, exports to the first multiplexing demultiplexing device again the uplink optical signal of the second multiplexing demultiplexing device output respectively;
The first multiplexing demultiplexing device is combined into traveling optical signal on the way by the uplink optical signal of k photoelectricity optical repeater output, and exports to H-OLT.
Utilize above-mentioned length apart from box the processing method to downlink optical signal, described method comprises:
The first multiplexing demultiplexing device is when the downlink optical signal receiving from H-OLT, described downlink optical signal is decomposed into the downlink optical signal on m road, and export to respectively m photoelectricity optical repeater, wherein, in the downlink optical signal on described m road, the wavelength of light wave that carries every road downlink optical signal is different, and described m is greater than 1 and be less than or equal to the positive integer of n;
M photoelectricity optical repeater carries out shaping again and after amplification, exports to the second multiplexing demultiplexing device again the downlink optical signal of the first multiplexing demultiplexing device output respectively;
The second multiplexing demultiplexing device is combined into the downlink optical signal on the m road receiving one road downlink optical signal and exports to 1:N coupler;
1:N coupler is divided into N road by the downlink optical signal of the second multiplexing demultiplexing device output, and exports to respectively N the optical splitter being connected with self.
In the scheme of the embodiment of the present invention, on the one hand, the length being connected with a PON port of OLT is carried out shaping again and amplifies uplink and downlink signals respectively apart from the photoelectricity optical repeater in box apart from box or the length that is connected with a H-PON port of H-OLT, and the downlink optical signal output after shaping is again amplified again, the transmission range that has extended light signal; On the other hand, the Insertion Loss of long 1:N coupler in box is less, and the splitting ratio that makes to increase in PON becomes possibility, and therefore, the length in the present invention is apart from box in the situation that the length that guarantees light signal, apart from transmission, has increased the splitting ratio in PON.
Accompanying drawing explanation
Fig. 1 is the composition structural representation of the TDM-PON in background technology;
Fig. 2 is the composition structural representation of the H-PON in background technology;
Fig. 3 is the structural representation of the photoelectricity optical repeater in the embodiment of the present invention one;
Fig. 4 is the structural representation of the photoelectricity optical repeater in the embodiment of the present invention one;
Fig. 5 is the principle schematic of the wave-division multiplexer filter separated light signal in the embodiment of the present invention one;
Fig. 6 is the structural representation of the photoelectricity optical repeater in the embodiment of the present invention one;
Fig. 7 is the structural representation of the photoelectricity optical repeater in the embodiment of the present invention two;
Fig. 8 is the clock signal schematic diagram of the logical block output in the embodiment of the present invention two;
Fig. 9 is that length in the embodiment of the present invention three is apart from box structural representation;
Figure 10 is the structural representation that the 1:4 coupler in the embodiment of the present invention three is connected with monomode fiber with multimode fiber;
Figure 11 is that the length in the embodiment of the present invention three is applied to the structural representation of GPON system apart from box;
Figure 12 is that length in the embodiment of the present invention three is apart from box structural representation;
Figure 13 is that length in the embodiment of the present invention three is apart from box structural representation;
Figure 14 is that length in the embodiment of the present invention three is apart from box structural representation;
Figure 15 is that length in the embodiment of the present invention four is apart from box structural representation;
Figure 16 is that length in the embodiment of the present invention four is apart from box structural representation;
Figure 17 is that length in the embodiment of the present invention four is apart from box structural representation;
Figure 18 is that length in the embodiment of the present invention four is apart from box structural representation;
Figure 19 is that the length in the embodiment of the present invention four is applied to the structural representation of H-PON system apart from box;
Figure 20 is a kind of processing method schematic diagram to uplink optical signal in the embodiment of the present invention five;
Figure 21 is a kind of processing method schematic diagram to downlink optical signal in the embodiment of the present invention six;
Figure 22 is a kind of processing method schematic diagram to uplink optical signal in the embodiment of the present invention seven;
Figure 23 is a kind of processing method schematic diagram to downlink optical signal in the embodiment of the present invention eight.
Embodiment
N in the 1:N coupler of the embodiment of the present invention is greater than 1 positive integer, and the value of N can determine according to the actual requirements, and in the scheme of the embodiment of the present invention, the N of take gets 4 and describes as example.
Below by specific embodiment, describe the solution of the present invention in detail.
Embodiment mono-
As shown in Figure 3, be photoelectricity optical repeater 21 structural representations in the embodiment of the present invention one, described photoelectricity optical repeater 21 comprises: ONU transceiver 31 and OLT transceiver 32.
Described ONU transceiver 31, for the downlink optical signal receiving is carried out opto-electronic conversion and amplifies shaping more again, and will change and amplify again the downlink electrical signal obtaining after shaping again and export to OLT transceiver 32, and the uplink electrical signals from OLT transceiver 32 is carried out to electric light conversion, and by the uplink optical signal output obtaining after conversion;
When described photoelectricity optical repeater repeater applications is in TDM-PON, the downlink optical signal that ONU transceiver 31 receives can be from the OLT in this TDM-PON; Now, ONU transceiver 31 can be exported to described OLT by the uplink optical signal obtaining after conversion.
When described photoelectricity optical repeater repeater applications is in H-PON, the downlink optical signal that ONU transceiver 31 receives can be from the H-OLT in this H-PON; Now, ONU transceiver 31 can be exported to described H-OLT by the uplink optical signal obtaining after conversion.
Described OLT transceiver 32, for the downlink electrical signal of ONU transceiver 31 outputs is carried out to electric light conversion, and by the downlink optical signal output obtaining after conversion, and the uplink optical signal receiving is carried out opto-electronic conversion and amplifies shaping more again, and will change and amplify again the uplink electrical signals obtaining after shaping again and export to ONU transceiver 31.
The uplink optical signal that described OLT transceiver 32 receives can be from 1:N coupler, and the downlink optical signal obtaining after conversion can be exported to 1:N coupler.
Concrete, described OLT transceiver 32 comprises: first signal transducer 41 and the first smooth diplexer 42, wherein, described first signal transducer 41 has uplink optical signal receiving port and downlink optical signal emission port.
Described the first smooth diplexer 42, for the light signal receiving is carried out to separation, when receiving uplink optical signal, this uplink optical signal is exported to the uplink optical signal receiving port of first signal transducer 41, when receiving the downlink optical signal of exporting from the downlink optical signal emission port of first signal transducer 41, by this downlink optical signal output;
Described first signal transducer 41, after carrying out opto-electronic conversion and amplify again shaping again for the uplink optical signal that uplink optical signal receiving port is received, export to ONU transceiver 31, and the downlink electrical signal of ONU transceiver 31 outputs is carried out to electric light conversion by downlink optical signal emission port, export the first smooth diplexer 42 to.
Concrete, described first signal transducer comprises: the first photoelectric conversion unit 51 and the first electrooptic switching element 52;
Described the first photoelectric conversion unit 51 is for carrying out uplink optical signal opto-electronic conversion and amplifying shaping more again;
Described the first electrooptic switching element 52, is converted to downlink optical signal for the downlink electrical signal of ONU transceiver 31 outputs is carried out to electric light.
Above-mentioned first signal transducer 41 is owing to having uplink optical signal receiving port and downlink optical signal emission port, and the transmitting-receiving that has realized light signal is separated, has therefore reduced the loss of light signal in converter inside, and then has improved the transmitting power of downlink optical signal.
Preferably, described the first smooth diplexer is wave-division multiplexer filter or optical circulator.
When described the first smooth diplexer 42 is wave-division multiplexer filter, the structural representation of described photoelectricity optical repeater as shown in Figure 4.R shown in Fig. 4 is the reflector port of wave-division multiplexer filter, P is the transmission port of wave-division multiplexer filter, C is the public port of wave-division multiplexer filter, wherein: reflector port R is connected with the downlink optical signal emission port of first signal transducer 41 by monomode fiber, transmission port P is connected with the uplink optical signal receiving port of first signal transducer 41 by multimode fiber, public port C can be connected with other devices in PON network by multimode fiber, for example 1:N coupler.
On the basis of above-mentioned annexation, the processing procedure to the light signal receiving of described wave-division multiplexer filter is:
To downlink optical signal: the reflector port R of wave-division multiplexer filter receives from the downlink optical signal of the downlink optical signal emission port output of first signal transducer 41, and wave-division multiplexer filter is exported it by public port C;
To uplink optical signal: the public port C of wave-division multiplexer filter receives uplink optical signal, and wave-division multiplexer filter carries out separation to it, it is exported to the downlink optical signal receiving port of first signal transducer 41 from transmission port P.
The principle of above-mentioned wave-division multiplexer filter separated light signal as shown in Figure 5, as shown in Figure 5, wave-division multiplexer filter utilizes linear filter sheet to carrying out separation from the light signal of public port C input, when the wavelength of the light signal of inputting is less than the sideband wavelength of linear filter sheet, it is exported from P mouth; When the wavelength of the light signal of inputting is greater than the sideband wavelength of linear filter sheet, it is exported from R mouth.
The sideband wavelength of described linear filter sheet can be determined according to the wave-length coverage of up-downgoing light signal, for example: the wave-length coverage of supposing uplink optical signal is 1260 nanometers (nm) ~ 1360nm, the wave-length coverage of downlink optical signal is 1480nm ~ 1550nm, sideband wave is grown up and is less than 1480nm in 1360nm, for example, can get 1450nm.
When described the first smooth diplexer 42 is optical circulator, the structural representation of described photoelectricity optical repeater as shown in Figure 6.Optical circulator shown in Fig. 6 has three ports, be respectively port one, port 2 and port 3, (in Fig. 6, with 1,2,3, representing), wherein: port one is connected with the downlink optical signal emission port of first signal transducer 41 by monomode fiber, port 3 is connected with the uplink optical signal receiving port of first signal transducer 41 by multimode fiber, and port 2 can be connected with the external world by multimode fiber.
On the basis of above-mentioned annexation, described optical circulator to the processing procedure of the light signal receiving is:
To downlink optical signal: the port one of optical circulator receives from the downlink optical signal of the downlink optical signal emission port output of first signal transducer 41, and port 2 is led;
To uplink optical signal: the port 2 of optical circulator receives the uplink optical signal of extraneous input, port 3 export the downlink optical signal receiving port of first signal transducer 41 to is led.
In above-mentioned optical circulator, the input port that port one is light signal, port 2 is input/output end ports of light signal, port 3 is output ports of light signal, the transmission path of light signal can only be from port one to port 2, or from port 2 to port 3, other transmission paths are forbidden.
Concrete, described ONU transceiver 31 comprises: secondary signal transducer 43 and the second smooth diplexer 44.
Described the second smooth diplexer 44, for the light signal receiving is identified, when receiving downlink optical signal, export this downlink optical signal to secondary signal transducer 43, when receiving the uplink optical signal of exporting from secondary signal transducer 43, through shunt, export this uplink optical signal output to OLT;
Described secondary signal transducer 43, for the first photoelectricity is turned unit 51 output uplink electrical signals carry out electric light conversion by exporting the second smooth diplexer 43 to, and export the first electrooptic switching element 52 to after the downlink optical signal of the second smooth diplexer 43 outputs is carried out to opto-electronic conversion and amplifies shaping more again;
Concrete, described secondary signal transducer comprises: the second photoelectric conversion unit 53 and the second electrooptic switching element 54;
Described the second photoelectric conversion unit 53 is for carrying out the downlink optical signal of the second smooth diplexer 43 outputs opto-electronic conversion and amplify shaping more again;
Described the second electrooptic switching element 54, is converted to uplink optical signal for the uplink electrical signals of the first photoelectric conversion unit 51 outputs is carried out to electric light.
Photoelectricity optical repeater in the embodiment of the present invention one, consists of ONU transceiver and OLT transceiver, because each transceiver function is well defined, therefore, simple in structure, more easily realizes.
Embodiment bis-
Consider that the ONU transceiver 31 in photoelectricity optical repeater 21 need to close its emission switch when not carrying out the transmitting of uplink optical signal, stop the operation for uplink optical signal, to avoid crosstalking of other light signals, guarantee the normal operation of photoelectricity optical repeater; And ONU transceiver 32 is when this receives uplink optical signal, timely hold reset state, so that the uplink optical signal of inputting next time in it is processed, on the basis of the embodiment of the present invention two based on embodiment mono-, the structure of photoelectricity optical repeater is done further to optimize, and its schematic diagram as shown in Figure 7.
Described photoelectricity optical repeater 21 also comprises: logical block 33;
Described OLT transceiver 32, also for to logical block output detection signal, described detection signal is that OLT transceiver is according to the power of uplink optical signal of input and the output of the length of duration.Described detection signal can be: input (Signal Detect, SD) signal or dropout (Lost of Signal, LOS) signal, and when this detection signal is SD signal, detection signal is effective when OLT receiver receives uplink optical signal, is high level; When this detection signal is LOS signal, detection signal is effective when OLT receiver does not receive uplink optical signal, is low level;
Described logical block 33, for the detection signal receiving, be that SD signal and detection signal are when invalid, indication ONU transceiver and OLT receiver stop carrying out the operation for uplink optical signal, at the detection signal receiving, be SD signal and detection signal when effective, indication ONU transceiver and OLT receiver are carried out the operation for uplink optical signal; At the detection signal receiving, be that LOS signal and detection signal are when effective, indication ONU transceiver and OLT receiver stop carrying out the operation for uplink optical signal, at the detection signal receiving, be LOS signal and detection signal when invalid, indication ONU transceiver and OLT receiver are carried out the operation for uplink optical signal.
For uplink optical signal being done to further processing, make from the signal quality of the uplink optical signal of photoelectricity optical repeater output better, preferably, described photoelectricity optical repeater 21 also comprises clock and data recovery unit 34, clock unit 35 and timing unit 36 again, wherein:
Clock and data recovery unit 34 for receiving the downlink electrical signal of ONU transceiver 31 outputs, and extracts clock signal from this downlink electrical signal, exports clock signal to clock unit 35, exports this downlink electrical signal to OLT transceiver 32;
Clock unit 35, for according to the requirement of 36 pairs of timing parameters of timing unit again, processes the clock signal receiving, and obtains reference clock, and exports described reference clock to timing unit 36 again;
Timing unit 36 again, for receiving the uplink electrical signals of OLT transceiver 32 output, utilize the reference clock receiving, described uplink electrical signals carried out regularly again, and export the uplink electrical signals after regularly again to ONU transceiver 31.
Described logical block 33, when also effective for the detection signal receiving, indicate again 36 pairs of local registers of timing unit to reset, or, when the detection signal receiving is invalid, indicate again timing unit 36 to reset to the register of himself so that again timing unit by the register zero clearing of himself, for the uplink electrical signals receiving next time is carried out regularly again.
Concrete, logical block 33, after receiving the detection signal of OLT transceiver output, is exported following signal, with the corresponding device in pilot light electric light repeater or unit, carries out the operation to uplink optical signal.Here the detection signal of take describes as SD signal as example.
Reset2 is the reset signal that logical block is exported to OLT transceiver, and when SD invalidating signal, indication OLT transceiver stops the operation for uplink optical signal, and when SD signal is effective, indication OLT transceiver is carried out the operation for uplink optical signal;
Reset1 is logical block to the reset signal of timing unit output again, when SD signal is effective, indicates 36 pairs of local registers of timing unit to reset again;
Tx_burst is the switch controlling signal that logical block is exported to ONU transceiver, and when SD signal is effective, OLT transceiver is carried out the operation for uplink optical signal.
Suppose uplink optical signal OLT Optical that the OLT transceiver receives (guard time in Fig. 8 (Guard Time) as shown in Figure 8; being illustrated in this time period does not have upward signal to input OLT transceiver); OLT transceiver is exported to the SD signal of logical block, and logical block is as follows according to reset2, the reset1 of the output of SD signal and the process of Tx_burst:
[1], at t1 constantly, there is uplink optical signal input OLT transceiver, through time delay t delay1, OLT exports high level (in Fig. 8, SD signal shows to have uplink optical signal input with high level) to logical block;
[2], SD signal to be detected be high level to logical block, through time delay t delay6, at t2, constantly to ONU transceiver output high level (Tx_burst in Fig. 8 is now high level), indication ONU transceiver is opened emission switch, carries out the operation for uplink optical signal.
[3], SD signal to be detected be high level to logical block, through time delay t delay4, at t3, constantly to OLT transceiver output low level (reset2 in Fig. 8 is now low level), indication OLT transceiver is cancelled reset, carries out the operation for uplink optical signal.
[4], logical block after the moment, is passed through time delay t at t3 delay5, at t4, constantly to timing unit output reset signal (reset1 in Fig. 8 be now high level) again, indicate again timing unit to reset, then timing unit is by local register zero clearing, starts to carry out the fixed cycle operator again for the uplink electrical signals of inputting.
[5], at t5 constantly, there is no uplink optical signal input OLT transceiver, OLT transceiver is through time delay t delay2at t6 constantly to logical block output low level (the SD signal in Fig. 8 is now low level).
[6], detection signal to be detected be low level to logical block and keep certain this Tth of width Tth(to be configured by the register of logical block), through time delay t delay6, at t7, constantly to ONU transceiver output low level (Tx_burst in Fig. 8 is now low level), indication ONU transceiver is closed emission switch, stops the operation for uplink optical signal.
[7], SD signal to be detected be low level to logical block, through time delay t delay3, at t8, constantly to OLT transceiver output high level (reset2 in Fig. 8 is now high level), indication OLT transceiver resets, and stops the operation for uplink optical signal, and hold reset state.
Above-mentioned t delay1, t delay2can be configured by the register of OLT transceiver t delay3, t delay4, t delay5, t delay6can be configured by the register of logical block.Above-mentioned reset1 and reset2 show, and to be high level effective, certainly, also can be configured to Low level effective.
By the scheme of the embodiment of the present invention two, photoelectricity optical repeater has been realized shaping again, amplification and the timing more again to uplink optical signal, the uplink optical signal quality that makes to export to OLT or H-OLT is better, improved the reliability of optical fiber communication, because the photoelectricity optical repeater in the embodiment of the present invention two can carry out shaping again, amplify and more regularly and downlink optical signal is carried out shaping again, amplified up light, therefore, the photoelectricity optical repeater in the embodiment of the present invention can zoom out the transmission range of light signal.
Embodiment tri-
As shown in Figure 9, be the structural representation of the length in the embodiment of the present invention three apart from box, described length comprises apart from box: photoelectricity optical repeater 21 and 1:4 coupler 22.
Described photoelectricity optical repeater 21, for the downlink optical signal from OLT being carried out to shaping again and exporting to 1:4 coupler after amplification again, carries out the uplink optical signal from 1:4 coupler shaping again and after amplification, exports to OLT again;
Described 1:N coupler 22, for the downlink optical signal of the output of photoelectricity optical repeater is divided into 4 tunnels, and export to respectively 4 optical splitters that are connected with self, and after being coupled as to a road, the uplink optical signal of each optical splitter output being connected with self exports to photoelectricity optical repeater 21.
Preferably, described in order to reduce uplink optical signal by the Insertion Loss of 1:4 coupler, photoelectricity optical repeater 21 and 1:4 coupler 22 are connected by multimode fiber (Multi-Mode Fiber, MMF).
Because 1:4 coupler 22 has the asymmetry of light signal loss, the loss that is light signal is relevant by the direct of travel of self with light signal, when light signal is from monomode fiber (Single Mode Fiber, SMF) through 1:4 coupler 22, be transferred to multimode fiber, the loss of light signal is 1dB; And work as light signal, from multimode fiber, through 1:4 coupler 22, be transferred to monomode fiber, the loss of light signal is identical with the loss of 1:4 optical splitter, be 10lg (1/4) dB, therefore, in embodiments of the invention, photoelectricity optical repeater 21 and 1:4 coupler 22 are by multimode fiber (Multi-Mode Fiber, MMF) be connected, and to the loss with downlink optical signal, the increase of the multiplication factor by 21 pairs of downlink optical signals of photoelectricity optical repeater makes up.
Concrete, as shown in figure 10, wherein multimode fiber is connected with the multimode port of 1:4 coupler the structural representation that 1:4 coupler 22 is connected with monomode fiber with multimode fiber, and monomode fiber is connected with the single mode port of 1:4 coupler.
When 4 road uplink optical signals are transferred to 1:4 coupler through a plurality of monomode fibers, 1:4 coupler utilizes flowcollector aggregation scheme FlowCollector (as: lens, fusion vertebral pulling mode) to be combined into a road to this 4 road uplink optical signal and exports to multimode fiber.
Preferably, described length also comprises apart from box: shunt 23 and local management unit 24;
Described shunt 23, for the downlink optical signal from OLT is divided into two-way, local management unit 24 is exported on one tunnel, and described photoelectricity optical repeater 21 is exported on another road, and the uplink optical signal of described photoelectricity optical repeater 21 and local management unit output is forwarded to OLT.
Described local management unit 24, for according to the downlink optical signal receiving, photoelectricity optical repeater 21 being carried out to parameter configuration, and reports local parameter information to OLT.
Concrete, the downlink optical signal that described local management unit 24 receives from the parameter configuration that comprises photoelectricity optical repeater 21 of OLT, and utilize this parameter configuration by ONU, to manage and control interface (ONU Management and Control Interface, OMCI) passage is to the power of utilizing emitted light signal of photoelectricity optical repeater 21, the power of receiving optical signals and operating voltage thereof and bias current are configured, administer and maintain photoelectricity optical repeater, and described OMCI passage is the passage between local management unit and photoelectricity optical repeater.
It should be noted that, the downlink optical signal that local management unit in the present embodiment three receives from shunt 23 carries out parameter configuration to photoelectricity optical repeater, now, this configuration information is that the PON port from being connected apart from box with this length is exported, but the local management unit in the scheme of the present embodiment one be not limited to receive from its under the downlink optical signal of the PON port that is connected apart from box of length, also can receive from the parameter configuration in the downlink optical signal of other PON ports of OLT, utilize this parameter configuration to realize the parameter configuration to photoelectricity optical repeater, management and maintenance.
Length in the embodiment of the present invention three is applied in the PON system of time division multiplexing (Time Division Multiplexer) apart from box, for example: ether PON(Ethernet Passive Optical Networks, EPON) system, gigabit PON(Gigabit-capable Passive Optical Networks, GPON) system, 10,000,000,000 PON(10G-PON) system, XG-PON system, in different systems, can the requirement according to each system apart from the photoelectricity optical repeater in box configure accordingly length of the present invention, to adapt to corresponding system.
In scheme due to the embodiment of the present invention three, on the one hand, long photoelectricity optical repeater in box has carried out shaping again and has amplified up-downgoing light signal, extended the transmission range of light signal, on the other hand, because 1:N coupler is less to the Insertion Loss of uplink optical signal, use the length in the embodiment of the present invention can increase the splitting ratio in TDM-PON apart from box.Therefore, can realize in the length that guarantees light signal greatly apart from transmission situation, increase splitting ratio, and then make to utilize the PON port of negligible amounts, just can the more user of load.
Figure 11 has shown that the length in the embodiment of the present invention three is applied to the structural representation of GPON system apart from box, the length of take in Figure 11 comprises 1:4 coupler as example in box, by length of the present invention apart from box, 4 ODN in background technology are all based upon under a PON port of OLT of GPON, also realized large splitting ratio simultaneously, can connect more ONU, also serve more user, and then reduced networking cost and O&M cost.
The function of the long device apart from box of three pairs of long structures apart from box of above-described embodiment and formation is described, and preferably, the photoelectricity optical repeater in the embodiment of the present invention three can be the photoelectricity optical repeater in the embodiment of the present invention one and embodiment bis-.
When photoelectricity optical repeater is the photoelectricity optical repeater in Fig. 3, length in the embodiment of the present invention three apart from the structure of box as shown in figure 12, wherein, OLT transceiver 32, for the downlink electrical signal of ONU transceiver 31 outputs is carried out to electric light conversion, and the downlink optical signal obtaining after conversion is exported to 1:4 coupler 22, and the uplink optical signal from 1:4 coupler 22 is carried out opto-electronic conversion and amplifies shaping more again, and will change and amplify again the uplink electrical signals obtaining after shaping again and export to ONU transceiver 31.
Described the first smooth diplexer 42, for the light signal receiving is carried out to separation, when the uplink optical signal receiving from 1:N coupler 22, this uplink optical signal is exported to the uplink optical signal receiving port of first signal transducer 41, when receiving the downlink optical signal of exporting from the downlink optical signal emission port of first signal transducer 41, export this downlink optical signal to 1:4 coupler 22;
When described the first smooth diplexer 42 is wave-division multiplexer filter, described length apart from the structural representation of box as shown in figure 13.In Figure 13, the public port C of the reflector port of wave-division multiplexer filter is connected with the multimode port of 1:N coupler 22 by multimode fiber.
On the basis of above-mentioned annexation, the processing procedure to the light signal receiving of described wave-division multiplexer filter is:
To downlink optical signal: the reflector port R of wave-division multiplexer filter receives from the downlink optical signal of the downlink optical signal emission port output of first signal transducer 41, wave-division multiplexer filter carries out separation to downlink optical signal, it is exported to the multimode port of 1:4 coupler 22 by public port C;
To uplink optical signal: the public port C of wave-division multiplexer filter receives the uplink optical signal of the multimode port output of 1:4 coupler 22, wave-division multiplexer filter carries out separation to it, it is exported to the downlink optical signal receiving port of first signal transducer 41 from transmission port P.
Because light signal is less to multimode fiber Insertion Loss from monomode fiber, and it is larger to monomode fiber Insertion Loss from multimode fiber, therefore, above-mentioned up-downgoing light signal wave-division multiplexer filter transmitting procedure in, downlink optical signal signal is through monomode fiber input reflection port R to public port C, and Insertion Loss is less; Uplink optical signal is also less to the transmission port P Insertion Loss being connected with multimode fiber from public port C.
When described the first smooth diplexer 42 is optical circulator, described length apart from the structural representation of box as shown in figure 14.Optical circulator shown in Figure 14 has three ports, be respectively port one, port 2 and port 3, (in Figure 14, with 1,2,3, representing), wherein: port one is connected with the downlink optical signal emission port of first signal transducer 41 by monomode fiber, port 3 is connected with the uplink optical signal receiving port of first signal transducer 41 by multimode fiber, and port 2 is connected with the multimode port of 1:4 coupler 22 by multimode fiber.
On the basis of above-mentioned annexation, described optical circulator to the processing procedure of the light signal receiving is:
To downlink optical signal: the port one of optical circulator receives from the downlink optical signal of the downlink optical signal emission port output of first signal transducer 41, port 2 export the multimode port of 1:N coupler 22 to is led;
To uplink optical signal: the port 2 of optical circulator receives the uplink optical signal of the multimode port output of 1:4 couplers 22, port 3 export the downlink optical signal receiving port of first signal transducer 41 to is led.
Described the second smooth diplexer 44, for the light signal receiving is carried out to separation, when the downlink optical signal receiving from OLT, export this downlink optical signal to secondary signal transducer 43, when receiving the uplink optical signal of exporting from secondary signal transducer 43, through shunt 23, export this uplink optical signal output to OLT.
By the scheme of the embodiment of the present invention three, long photoelectricity optical repeater in box has been realized the shaping again to uplink optical signal, amplify again and timing again, the uplink optical signal quality that makes to export to OLT is better, improved the reliability of optical fiber communication, because the length in the embodiment of the present invention three can be carried out shaping again to up light apart from box, amplify again and more regularly and downlink optical signal is carried out to shaping again, amplify again, therefore, length in the embodiment of the present invention can zoom out the transmission range of light signal apart from box, this just makes the length in the embodiment of the present invention can place from OLT compare Yuan position apart from box.
Embodiment tetra-
Consider in existing passive optical network system, in order to increase user's bandwidth, wavelength-division multiplex technique and time-division multiplex technology are combined, be applied in passive optical network simultaneously, now this germline is referred to as wavelength-division and time-division multiplexing passive optical network system, now the optical line terminal in this system is mixed light line terminal (Hybird OLT, H-OLT), ODN is for mixing ODN(Hybird ODN), ONU is accordingly also for mixing ONU(Hybird ONU, H-ONU), in order to improve in this kind of system at long splitting ratio under transmission, the embodiment of the present invention four provides a kind of length apart from box, its structural representation as shown in figure 15, described length comprises apart from box: the first multiplexing demultiplexing device 41, the second multiplexing demultiplexing device 42, 1:N coupler 43 and n photoelectricity optical repeater 44, described N is greater than 1 positive integer, described n is greater than 2 positive integer, wherein:
Described the first multiplexing demultiplexing device 41, for the downlink optical signal from mixed light line terminal H-OLT being decomposed into the downlink optical signal on m road, and export to respectively m photoelectricity optical repeater, and the uplink optical signal from continuing in photoelectricity light is synthesized to traveling optical signal on the way send to H-OLT, wherein, in the downlink optical signal on described m road, the wavelength of light wave that carries every road downlink optical signal is different, and described m is greater than 1 and be less than or equal to the positive integer of n;
Described photoelectricity optical repeater 44, for the downlink optical signal from the first multiplexing demultiplexing device being carried out to shaping again and exporting to the second multiplexing demultiplexing device after amplification again, and the uplink optical signal from the second multiplexing demultiplexing device is carried out to shaping again and after amplification, exports to the first multiplexing demultiplexing device again;
Described the second multiplexing demultiplexing device 42, for after will being combined into a road downlink optical signal from photoelectricity optical repeater downlink optical signal, export to 1:N coupler, and the uplink optical signal from 1:N coupler is decomposed into k road uplink optical signal, and export to respectively k photoelectricity optical repeater, wherein, in the uplink optical signal of described k road, the wavelength of light wave that carries every road uplink optical signal is different, and described k is greater than 1 and be less than or equal to the positive integer of n;
Described 1:N coupler 43, described 1:N coupler, for the downlink optical signal from the second multiplexing demultiplexing device is divided into N road, and export to respectively N the optical splitter being connected with self, and after being coupled as to a road, the uplink optical signal of each optical splitter output being connected with self exports to the second multiplexing demultiplexing device.
Preferably, the downlink optical signal that in described photoelectricity optical repeater 44, the wavelength of the default light wave for bearing downlink light signal and the first multiplexing demultiplexing device send, identical for carrying the wavelength of light wave of this downlink optical signal, default for carrying the wavelength of light wave and the uplink optical signal of the second multiplexing demultiplexing device transmission of uplink optical signal in described photoelectricity optical repeater, identical for carrying the wavelength of light wave of this uplink optical signal;
Described the first multiplexing demultiplexing device 41, specifically for the downlink optical signal from H-OLT being decomposed into the downlink optical signal on m road, and respectively according to the wavelength of the light wave of each road downlink optical signal of carrying, described m road downlink optical signal is exported to respectively to Wavelength matched photoelectricity optical repeater;
Described the second multiplexing demultiplexing device 42, specifically for the uplink optical signal from 1:N coupler being decomposed into k road uplink optical signal, and respectively according to the wavelength of the light wave of each road uplink optical signal of carrying, described k road uplink optical signal is exported to respectively to Wavelength matched photoelectricity optical repeater.
For example: suppose that described length is 3 apart from the number of photoelectricity optical repeater in box, be respectively photoelectricity optical repeater 1, photoelectricity optical repeater 2 and photoelectricity optical repeater 3, wherein:
In photoelectricity optical repeater 1, the wavelength of the default default light wave for bearing downlink light signal is λ 1, default for carrying the wavelength X of the light wave of uplink optical signal 4;
In photoelectricity optical repeater 2, the wavelength of the default default light wave for bearing downlink light signal is λ 2, default for carrying the wavelength X of the light wave of uplink optical signal 5;
In photoelectricity optical repeater 2, the wavelength of the default default light wave for bearing downlink light signal is λ 3, default for carrying the wavelength X of the light wave of uplink optical signal 6;
The first multiplexing demultiplexing device 41 is decomposed into the downlink optical signal from H-OLT in the downlink optical signal on 3 tunnels, by the wavelength of light wave, is λ 1downlink optical signal export to photoelectricity optical repeater 1, by the wavelength of light wave, be λ 2downlink optical signal export to photoelectricity optical repeater 2, by the wavelength of light wave, be λ 3downlink optical signal export to photoelectricity optical repeater 3;
The second multiplexing demultiplexing device 42, specifically for the uplink optical signal from 1:N coupler being decomposed in the uplink optical signal of k road, is λ by the wavelength of light wave 4uplink optical signal export to photoelectricity optical repeater 1, by the wavelength of light wave, be λ 5uplink optical signal export to photoelectricity optical repeater 2, by the wavelength of light wave, be λ 6uplink optical signal export to photoelectricity optical repeater 3.
Preferably, described photoelectricity optical repeater comprises: optical network unit ONU transceiver and OLT transceiver;
Described ONU transceiver, for after the downlink optical signal from the first multiplexing demultiplexing device is carried out to opto-electronic conversion and amplifies shaping more again, export to OLT transceiver, and the uplink electrical signals from OLT transceiver is carried out exporting to the first multiplex/demultiplex after electric light conversion;
Described OLT transceiver, for the downlink electrical signal of ONU transceiver output is carried out exporting to the second multiplex/demultiplex after electric light conversion, and after being carried out to opto-electronic conversion and amplify shaping more again, the uplink optical signal from the second multiplex/demultiplex exports to ONU transceiver.
Preferably, described photoelectricity optical repeater also comprises: logical block;
Described OLT transceiver, also for to logical block output detection signal, when this detection signal is SD signal, detection signal is effective when OLT receiver receives the uplink optical signal of the second multiplexing demultiplexing device output, for high level, when this detection signal is LOS signal, detection signal is effective when OLT receiver does not receive the uplink optical signal of the second multiplexing demultiplexing device output, is low level;
Described logical block, for the detection signal receiving, be that SD signal and detection signal are when invalid, indication ONU transceiver and OLT receiver stop carrying out the operation for uplink optical signal, at the detection signal receiving, be SD signal and detection signal when effective, indication ONU transceiver and OLT receiver are carried out the operation for uplink optical signal; At the detection signal receiving, be that LOS signal and detection signal are when effective, indication ONU transceiver and OLT receiver stop carrying out the operation for uplink optical signal, at the detection signal receiving, be LOS signal and detection signal when invalid, indication ONU transceiver and OLT receiver are carried out the operation for uplink optical signal.
Preferably, described photoelectricity optical repeater also comprises clock and data recovery unit, clock unit and timing unit again, wherein:
Clock and data recovery unit for receiving the downlink electrical signal of ONU transceiver output, and extracts clock signal from this downlink electrical signal, exports clock signal to clock unit, exports this downlink electrical signal to OLT transceiver;
Clock unit, for according to the requirement of timing unit to timing parameter again, processes the clock signal receiving, and obtains reference clock, and exports described reference clock to again timing unit;
Timing unit again, carries out regularly described uplink electrical signals for receiving the uplink electrical signals of OLT transceiver output, utilize the reference clock receiving again, and exports the uplink electrical signals after regularly again to ONU transceiver.
Preferably, described logical block, when also effective for the detection signal receiving, indicates timing unit to reset to local register again, or, when the detection signal receiving is invalid, indicate again timing unit to reset to local register.
Preferably, described OLT transceiver comprises: signal converter and light diplexer, and wherein, described signal converter has uplink optical signal receiving port and downlink optical signal emission port;
Described smooth diplexer, for the light signal receiving is carried out to separation, when the uplink optical signal receiving from the second multiplexing demultiplexing device, this uplink optical signal is exported to the uplink optical signal receiving port of signal converter, when receiving the downlink optical signal of exporting from the downlink optical signal emission port of signal converter, export this downlink optical signal to second multiplexing demultiplexing device;
Described signal converter, after carrying out opto-electronic conversion and amplify again shaping again for the uplink optical signal that uplink optical signal receiving port is received, export to ONU transceiver, and the downlink electrical signal of ONU transceiver output is carried out to electric light conversion by downlink optical signal emission port, export light diplexer to.
Preferably, in order to realize H-OLT, described length is managed apart from box, described length also comprises apart from box: one or more shunts 45, and one or more local management units 46, now, can three kinds different length apart from box structure, realize H-OLT and manage apart from box long, these three kinds of different length, describe the long structure apart from box in conjunction with Figure 16, Figure 17 and Figure 18 respectively respectively as shown in Figure 16, Figure 17 and Figure 18 below apart from box structure.
For the length in Figure 16 apart from box structure: it,, except comprising the first multiplexing demultiplexing device 41, the second multiplexing demultiplexing device 42,1:N coupler 43 and n photoelectricity optical repeater 44, also comprises a shunt 45 and a local management unit 46; Wherein:
Described shunt 45, for the downlink optical signal from H-OLT is divided into two-way, local management unit 46 is exported on one tunnel, and described the first multiplexing demultiplexing device 41 is exported on another road, and the uplink optical signal that described the first multiplexing demultiplexing device defeated 41 is gone out is forwarded to H-OLT;
Described local management unit 46, for according to the downlink optical signal receiving, described n photoelectricity optical repeater being carried out to parameter configuration, and reports local parameter information to H-OLT.
For the length in Figure 17 apart from box structure: it is except comprising the first multiplexing demultiplexing device 41, the second multiplexing demultiplexing device 42,1:N coupler 43 and n photoelectricity optical repeater 44, also comprise n shunt 45 and a local management unit 46, and a described n shunt 45 is corresponding one by one with n photoelectricity optical repeater 44; Wherein:
Described shunt 45, for the downlink optical signal from the first multiplexing demultiplexing device 41 is divided into two-way, local management unit 46 is exported on one tunnel, corresponding with it photoelectricity optical repeater 44 is exported on another road, and the uplink optical signal of the photoelectricity optical repeater from corresponding is with it forwarded to the first multiplexing demultiplexing device 41;
Described local management unit 46, for according to the downlink optical signal receiving, described n photoelectricity optical repeater 44 being carried out to parameter configuration, and reports local parameter information to H-OLT.
For the length in Figure 18 apart from box structure: it is except comprising the first multiplexing demultiplexing device 41, the second multiplexing demultiplexing device 42,1:N coupler 43 and n photoelectricity optical repeater 44, also comprise n shunt 45 and n local management unit 46, and a described n shunt 45 is corresponding one by one with n photoelectricity optical repeater 44, a described n local manager is corresponding one by one with n photoelectricity optical repeater; Wherein:
Described shunt 45, for the downlink optical signal from the first multiplexing demultiplexing device 41 is divided into two-way, corresponding with it photoelectricity optical repeater 44 is exported on one tunnel, the local management unit 46 corresponding with described photoelectricity optical repeater 44 exported on another road, and the uplink optical signal of the photoelectricity optical repeater 44 from corresponding is with it forwarded to the first multiplexing demultiplexing device 41;
Described local management unit 46, for carrying out parameter configuration according to the downlink optical signal photoelectricity optical repeater corresponding with self receiving, and reports local parameter information to H-OLT.
Concrete, arbitrary photoelectricity optical repeater in above-mentioned Figure 15, Figure 16, Figure 17 and Figure 18, can be the photoelectricity optical repeater in embodiment mono-and embodiment bis-, what the internal structure of photoelectricity optical repeater and operation principle can be with embodiment mono-and embodiment bis-be identical, repeats no more here.
It should be noted that, the downlink optical signal that local management unit in the present embodiment four receives carries out parameter configuration to photoelectricity optical repeater, now, this configuration information is that the PON port from being connected apart from box with this length is exported, but the local management unit in the scheme of the present embodiment four is not limited to and utilizes the length at Yu Qi place apart from the downlink optical signal of the connected PON port of box, also can utilize from the parameter configuration in the downlink optical signal of other PON ports of OLT, utilize this parameter configuration to realize the parameter configuration of photoelectricity optical repeater, management and maintenance.
Length in the embodiment of the present invention four is applied in the PON system of time-division wavelength division multiplexing (Time Division Multiplexer, Wave Division Multiplexer) apart from box.
In scheme due to the embodiment of the present invention four, on the one hand, long photoelectricity optical repeater in box has carried out shaping again and has amplified up-downgoing light signal, extended the transmission range of light signal, on the other hand, because 1:N coupler is less to the Insertion Loss of uplink optical signal, use the length in the embodiment of the present invention can increase the splitting ratio in H-PON apart from box.Therefore, can realize in the length that guarantees light signal greatly apart from transmission situation, increase splitting ratio, and then make to utilize the PON port of negligible amounts, just can the more user of load.
Figure 19 has shown that the length in the embodiment of the present invention four is applied to the structural representation of H-PON apart from box, wherein the H-PON port in Figure 19 can consist of the PON array of ports of H-OLT, the length of take in Figure 19 comprises 1:4 coupler as example in box, by length of the present invention apart from box, 4 ODN are all based upon under a PON port of H-OLT, have also realized large splitting ratio, can connect more H-ONU simultaneously, also serve more user, the PON port that has improved H-OLT is set up the efficiency of ODN.
Embodiment five
Length based in above-described embodiment embodiment tri-is apart from box, and the embodiment of the present invention five proposes a kind of processing method to uplink optical signal, and as shown in figure 20, described method comprises:
Step 101:1:N coupler, when the uplink optical signal receiving from each coupled optical splitter, is exported to photoelectricity optical repeater after the uplink optical signal of each optical splitter is coupled as to a road;
Step 102: photoelectricity optical repeater carries out shaping again and exports to OLT after amplification again the uplink optical signal of 1:N coupler output.
Preferably, photoelectricity optical repeater carries out shaping again, amplifies and export to OLT after regularly more again the uplink optical signal of 1:N coupler output.
Preferably, photoelectricity optical repeater carries out shaping again to the uplink optical signal of 1:N coupler output and again after amplification, described method also comprises:
Shunt receive shaping again and amplify again after uplink optical signal, and exported to OLT;
Preferably, photoelectricity optical repeater carries out shaping again and amplifies and be specially again the uplink optical signal of 1:N coupler output:
OLT transceiver is exported to ONU transceiver after the uplink optical signal from 1:N coupler is carried out opto-electronic conversion and amplifies shaping more again;
ONU transceiver carries out exporting to OLT after electric light conversion to the uplink electrical signals from OLT transceiver.
Embodiment six
Length based in above-described embodiment three is apart from box, and the embodiment of the present invention five proposes a kind of processing method to downlink optical signal, and as shown in figure 21, described method comprises:
Step 201: photoelectricity optical repeater when the downlink optical signal receiving from optical line terminal OLT, this downlink optical signal is carried out to shaping again and amplify again after export to 1:N coupler.
Preferably, photoelectricity optical repeater is when the downlink optical signal receiving from optical line terminal OLT, and photoelectricity optical repeater carries out the downlink optical signal receiving shaping again, amplifies and export to 1:N coupler after regularly more again.
Step 202:1:N coupler is divided into N road by the downlink optical signal of the output of photoelectricity optical repeater, and exports to respectively N the optical splitter being connected with self.
Preferably, before photoelectricity optical repeater carries out shaping again by the downlink optical signal receiving and amplifies, described method also comprises:
Shunt is divided into two-way ，Yi road by the downlink optical signal from OLT and exports to local management unit, and described photoelectricity optical repeater is exported on another road;
Local management unit carries out parameter configuration according to the downlink optical signal receiving to photoelectricity optical repeater.
Preferably, photoelectricity optical repeater carries out the downlink optical signal receiving shaping again and amplifies and be specially again:
ONU transceiver is exported to OLT transceiver after the downlink optical signal from OLT is carried out opto-electronic conversion and amplifies shaping more again;
OLT transceiver carries out electric light conversion to the downlink electrical signal of ONU transceiver output.After being carried out opto-electronic conversion and amplify shaping more again, uplink optical signal from 1:N coupler exports to ONU transceiver.
Embodiment seven
Length based in above-described embodiment four is apart from box, and the embodiment of the present invention seven proposes a kind of processing method to uplink optical signal, and as shown in figure 22, described method comprises:
Step 301:1:N coupler, when the uplink optical signal receiving from each coupled optical splitter, is exported to the second multiplexing demultiplexing device after the uplink optical signal of each optical splitter is coupled as to a road;
Step 302: the second multiplexing demultiplexing device will be decomposed into k road uplink optical signal in the uplink optical signal of 1:N coupler output, and export to respectively k photoelectricity optical repeater, wherein, in the uplink optical signal of described k road, the wavelength of light wave that carries every road uplink optical signal is different, and described k is greater than 1 and be less than or equal to the positive integer of n;
Step 303:k photoelectricity optical repeater carries out shaping again and after amplification, exports to the first multiplexing demultiplexing device again the uplink optical signal of the second multiplexing demultiplexing device output respectively;
Preferably, k photoelectricity optical repeater carries out shaping again, amplifies and export to the first multiplexing demultiplexing device after regularly more again the uplink optical signal of the second multiplexing demultiplexing device output respectively;
Step 304: the first multiplexing demultiplexing device is combined into the uplink optical signal of k photoelectricity optical repeater output on the way traveling optical signal and exports to mixed light line terminal H-OLT.
Embodiment eight
Length based in above-described embodiment four is apart from box, and the embodiment of the present invention eight proposes a kind of processing method to downlink optical signal, and as shown in figure 23, described method comprises:
Step 401: the first multiplexing demultiplexing device is when the downlink optical signal receiving from H-OLT, described downlink optical signal is decomposed into the downlink optical signal on m road, and export to respectively m photoelectricity optical repeater, wherein, in the downlink optical signal on described m road, the wavelength of light wave that carries every road downlink optical signal is different, and described m is greater than 1 and be less than or equal to the positive integer of n;
Step 402:m photoelectricity optical repeater carries out shaping again and after amplification, exports to the second multiplexing demultiplexing device again the downlink optical signal of the first multiplexing demultiplexing device output respectively;
Preferably, m photoelectricity optical repeater carries out shaping again, amplifies and export to the second multiplexing demultiplexing device after regularly more again the downlink optical signal of the first multiplexing demultiplexing device output respectively;
Step 403: the second multiplexing demultiplexing device is combined into the downlink optical signal on the m road receiving one road downlink optical signal and exports to 1:N coupler;
Step 404:1:N coupler is divided into N road by the downlink optical signal of the second multiplexing demultiplexing device output, and exports to respectively N the optical splitter being connected with self.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (30)

1. a photoelectricity optical repeater, is characterized in that, described photoelectricity optical repeater comprises: optical network unit ONU transceiver and optical line terminal OLT transceiver;
Described ONU transceiver is exported to OLT transceiver after the downlink optical signal of reception being carried out to opto-electronic conversion and amplifying shaping more again, and the uplink electrical signals from OLT transceiver is carried out exporting after electric light conversion;
Described OLT transceiver, for the downlink electrical signal of ONU transceiver output is carried out exporting after electric light conversion, and exports to ONU transceiver after the uplink optical signal of reception is carried out to opto-electronic conversion and amplifies shaping more again.
2. photoelectricity optical repeater as claimed in claim 1, is characterized in that, described photoelectricity optical repeater also comprises: logical block;
Described OLT transceiver, also for to logical block output detection signal, when this detection signal is SD signal, detection signal is effective when OLT receiver receives uplink optical signal, is high level; When this detection signal is LOS signal, detection signal is effective when OLT receiver does not receive uplink optical signal, is low level;
Described logical block, for the detection signal receiving, be that SD signal and detection signal are when invalid, indication ONU transceiver and OLT receiver stop carrying out the operation for uplink optical signal, at the detection signal receiving, be SD signal and detection signal when effective, indication ONU transceiver and OLT receiver are carried out the operation for uplink optical signal; At the detection signal receiving, be that LOS signal and detection signal are when effective, indication ONU transceiver and OLT receiver stop carrying out the operation for uplink optical signal, at the detection signal receiving, be LOS signal and detection signal when invalid, indication ONU transceiver and OLT receiver are carried out the operation for uplink optical signal.
3. photoelectricity optical repeater as claimed in claim 2, is characterized in that, described photoelectricity optical repeater also comprises clock and data recovery unit, clock unit and timing unit again, wherein:
Clock and data recovery unit for receiving the downlink electrical signal of ONU transceiver output, and extracts clock signal from this downlink electrical signal, exports clock signal to clock unit, exports this downlink electrical signal to OLT transceiver;
Clock unit, for according to the requirement of timing unit to timing parameter again, processes the clock signal receiving, and obtains reference clock, and exports described reference clock to again timing unit;
Timing unit again, carries out regularly described uplink electrical signals for receiving the uplink electrical signals of OLT transceiver output, utilize the reference clock receiving again, and exports the uplink electrical signals after regularly again to ONU transceiver.
4. photoelectricity optical repeater as claimed in claim 3, is characterized in that,
Described logical block, when also effective for the detection signal receiving, indicates timing unit to reset to local register again, or, when the detection signal receiving is invalid, indicate again timing unit to reset to local register.
5. photoelectricity optical repeater as claimed in claim 1, is characterized in that, described OLT transceiver comprises: signal converter and light diplexer, and wherein, described signal converter has uplink optical signal receiving port and downlink optical signal emission port;
Described smooth diplexer, for the light signal receiving is carried out to separation, when receiving uplink optical signal, this uplink optical signal is exported to the uplink optical signal receiving port of signal converter, when receiving the downlink optical signal of exporting from the downlink optical signal emission port of signal converter, by this downlink optical signal output;
Described signal converter, after carrying out opto-electronic conversion and amplify again shaping again for the uplink optical signal that uplink optical signal receiving port is received, export to ONU transceiver, and the downlink electrical signal of ONU transceiver output is carried out to electric light conversion by downlink optical signal emission port, export light diplexer to.
6. photoelectricity optical repeater as claimed in claim 5, is characterized in that, described smooth diplexer is wave-division multiplexer filter or optical circulator.
7. long apart from a box, it is characterized in that, described length comprises apart from box: photoelectricity optical repeater and 1:N coupler, described N is greater than 1 positive integer;
Described photoelectricity optical repeater, for the downlink optical signal from optical line terminal OLT being carried out to shaping again and exporting to 1:N coupler after amplification again, carries out the uplink optical signal from 1:N coupler shaping again and after amplification, exports to OLT again;
Described 1:N coupler, for the downlink optical signal of the output of photoelectricity optical repeater is divided into N road, and export to respectively N the optical splitter being connected with self, and after being coupled as to a road, the uplink optical signal of each optical splitter output being connected with self exports to photoelectricity optical repeater.
8. length as claimed in claim 7, apart from box, is characterized in that, described length also comprises apart from box: shunt and local management unit;
Described shunt, for the downlink optical signal from OLT is divided into two-way, local management unit is exported on one tunnel, and described photoelectricity optical repeater is exported on another road, and the uplink optical signal of described photoelectricity optical repeater and local management unit output is forwarded to OLT;
Described local management unit, for according to the downlink optical signal receiving, photoelectricity optical repeater being carried out to parameter configuration, and reports local parameter information to OLT.
9. length as claimed in claim 7, apart from box, is characterized in that, described photoelectricity optical repeater comprises: optical network unit ONU transceiver and OLT transceiver;
Described ONU transceiver is exported to OLT transceiver, and the uplink electrical signals from OLT transceiver is carried out exporting to OLT after electric light conversion after the downlink optical signal from OLT being carried out to opto-electronic conversion and amplifying shaping more again;
Described OLT transceiver, for the downlink electrical signal of ONU transceiver output is carried out exporting to 1:N coupler after electric light conversion, and exports to ONU transceiver after the uplink optical signal from 1:N coupler is carried out to opto-electronic conversion and amplifies shaping more again.
10. length as claimed in claim 9, apart from box, is characterized in that, described photoelectricity optical repeater also comprises: logical block;
Described OLT receiver, also for to logical block output detection signal, when this detection signal is SD signal, detection signal is effective when the uplink optical signal of the output of OLT receiver reception 1:N coupler, for high level, when this detection signal is LOS signal, detection signal is effective when OLT receiver does not receive the uplink optical signal of 1:N coupler output, is low level;
Described logical block, for the detection signal receiving, be that SD signal and detection signal are when invalid, indication ONU transceiver and OLT receiver stop carrying out the operation for uplink optical signal, at the detection signal receiving, be SD signal and detection signal when effective, indication ONU transceiver and OLT receiver are carried out the operation for uplink optical signal; At the detection signal receiving, be that LOS signal and detection signal are when effective, indication ONU transceiver and OLT receiver stop carrying out the operation for uplink optical signal, at the detection signal receiving, be LOS signal and detection signal when invalid, indication ONU transceiver and OLT receiver are carried out the operation for uplink optical signal.
11. length as claimed in claim 10, apart from box, is characterized in that, described photoelectricity optical repeater also comprises clock and data recovery unit, clock unit and timing unit again, wherein:
Clock and data recovery unit for receiving the downlink electrical signal of ONU transceiver output, and extracts clock signal from this downlink electrical signal, exports clock signal to clock unit, exports this downlink electrical signal to OLT transceiver;
Clock unit, for according to the requirement of timing unit to timing parameter again, processes the clock signal receiving, and obtains reference clock, and exports described reference clock to again timing unit;
Timing unit again, carries out regularly described uplink electrical signals for receiving the uplink electrical signals of OLT transceiver output, utilize the reference clock receiving again, and exports the uplink electrical signals after regularly again to ONU transceiver.
12. length as claimed in claim 11, apart from box, is characterized in that,
Described logical block, when also effective for the detection signal receiving, indicates timing unit to reset to local register again, or, when the detection signal receiving is invalid, indicate again timing unit to reset to local register.
13. length as claimed in claim 9, apart from box, is characterized in that, described OLT transceiver comprises: signal converter and light diplexer, and wherein, described signal converter has uplink optical signal receiving port and downlink optical signal emission port;
Described smooth diplexer, for the light signal receiving is carried out to separation, when the uplink optical signal receiving from 1:N coupler, this uplink optical signal is exported to the uplink optical signal receiving port of signal converter, when receiving the downlink optical signal of exporting from the downlink optical signal emission port of signal converter, export this downlink optical signal to 1:N coupler;
Described signal converter, after carrying out opto-electronic conversion and amplify again shaping again for the uplink optical signal that uplink optical signal receiving port is received, export to ONU transceiver, and the downlink electrical signal of ONU transceiver output is carried out to electric light conversion by downlink optical signal emission port, export light diplexer to.
14. length as claimed in claim 13, apart from box, is characterized in that, described smooth diplexer is wave-division multiplexer filter or optical circulator.
15. length as described in as arbitrary in claim 7-14, apart from box, is characterized in that, described length is applied in the passive optical network PON system of time division multiplexing tdm apart from box.
16. 1 kinds are long apart from box, it is characterized in that, described length comprises apart from box: the first multiplexing demultiplexing device, the second multiplexing demultiplexing device, 1:N coupler and n photoelectricity optical repeater, and described N is greater than 1 positive integer, and described n is more than or equal to 2 positive integer;
Described the first multiplexing demultiplexing device, for the downlink optical signal from mixed light line terminal H-OLT being decomposed into the downlink optical signal on m road, and export to respectively m photoelectricity optical repeater, and the uplink optical signal from photoelectricity optical repeater is synthesized to traveling optical signal on the way send to H-OLT, wherein, in the downlink optical signal on described m road, the wavelength of light wave that carries every road downlink optical signal is different, and described m is greater than 1 and be less than or equal to the positive integer of n;
Described photoelectricity optical repeater, for the downlink optical signal from the first multiplexing demultiplexing device being carried out to shaping again and exporting to the second multiplexing demultiplexing device after amplification again, and the uplink optical signal from the second multiplexing demultiplexing device is carried out to shaping again and after amplification, exports to the first multiplexing demultiplexing device again;
Described the second multiplexing demultiplexing device, for after will being combined into a road downlink optical signal from photoelectricity optical repeater downlink optical signal, export to 1:N coupler, and the uplink optical signal from 1:N coupler is decomposed into k road uplink optical signal, and export to respectively k photoelectricity optical repeater, wherein, in the uplink optical signal of described k road, the wavelength of light wave that carries every road uplink optical signal is different, and described k is greater than 1 and be less than or equal to the positive integer of n;
Described 1:N coupler, for the downlink optical signal from the second multiplexing demultiplexing device is divided into N road, and export to respectively N the optical splitter being connected with self, and after being coupled as to a road, the uplink optical signal of each optical splitter output being connected with self exports to the second multiplexing demultiplexing device.
17. length as claimed in claim 16 are apart from box, it is characterized in that, the downlink optical signal that in described photoelectricity optical repeater, the wavelength of the default light wave for bearing downlink light signal and the first multiplexing demultiplexing device send, identical for carrying the wavelength of light wave of this downlink optical signal, default for carrying the wavelength of light wave and the uplink optical signal of the second multiplexing demultiplexing device transmission of uplink optical signal in described photoelectricity optical repeater, identical for carrying the wavelength of light wave of this uplink optical signal;
Described the first multiplexing demultiplexing device, specifically for the downlink optical signal from H-OLT being decomposed into the downlink optical signal on m road, and respectively according to the wavelength of the light wave of each road downlink optical signal of carrying, described m road downlink optical signal is exported to respectively to Wavelength matched photoelectricity optical repeater;
Described the second multiplexing demultiplexing device, specifically for the uplink optical signal from 1:N coupler being decomposed into k road uplink optical signal, and respectively according to the wavelength of the light wave of each road uplink optical signal of carrying, described k road uplink optical signal is exported to respectively to Wavelength matched photoelectricity optical repeater.
18. length as claimed in claim 16, apart from box, is characterized in that, described length also comprises apart from box: shunt and local management unit;
Described shunt, for the downlink optical signal from H-OLT is divided into two-way, described local management unit is exported on one tunnel, and described the first multiplexing demultiplexing device is exported on another road, and the uplink optical signal of described the first multiplexing demultiplexing device output is forwarded to H-OLT;
Described local management unit, for according to the downlink optical signal receiving, described n photoelectricity optical repeater being carried out to parameter configuration, and reports local parameter information to H-OLT.
19. length as claimed in claim 18, apart from box, is characterized in that, described length also comprises apart from box: a local management unit and n shunt, and a described n shunt is corresponding one by one with n photoelectricity optical repeater;
Described shunt, for the downlink optical signal from the first multiplexing demultiplexing device is divided into two-way, local management unit is exported on one tunnel, the photoelectricity optical repeater corresponding with self exported on another road, and the uplink optical signal of the photoelectricity optical repeater output from corresponding with self is forwarded to the first multiplexing demultiplexing device;
Described local management unit, for according to the downlink optical signal receiving, described n photoelectricity optical repeater being carried out to parameter configuration, and reports local parameter information to H-OLT.
20. length as claimed in claim 18, apart from box, is characterized in that, described length also comprises apart from box: n shunt and n local management unit, and a described n shunt is corresponding one by one with n photoelectricity optical repeater; A described n local manager is corresponding one by one with n photoelectricity optical repeater;
Described shunt, for the downlink optical signal from the first multiplexing demultiplexing device is divided into two-way, the photoelectricity optical repeater corresponding with self exported on one tunnel, the local management unit corresponding with described photoelectricity optical repeater exported on another road, and the uplink optical signal of the photoelectricity optical repeater from corresponding with self is forwarded to the first multiplexing demultiplexing device;
Described local management unit, for carrying out parameter configuration according to the downlink optical signal pair photoelectricity optical repeater corresponding with self receiving, and reports local parameter information to H-OLT.
21. length as claimed in claim 16, apart from box, is characterized in that, described photoelectricity optical repeater comprises: optical network unit ONU transceiver and OLT transceiver;
Described ONU transceiver, for after the downlink optical signal from the first multiplexing demultiplexing device is carried out to opto-electronic conversion and amplifies shaping more again, export to OLT transceiver, and the uplink electrical signals from OLT transceiver is carried out exporting to the first multiplex/demultiplex after electric light conversion;
Described OLT transceiver, for the downlink electrical signal of ONU transceiver output is carried out exporting to the second multiplex/demultiplex after electric light conversion, and after being carried out to opto-electronic conversion and amplify shaping more again, the uplink optical signal from the second multiplex/demultiplex exports to ONU transceiver.
22. length as claimed in claim 21, apart from box, is characterized in that, described photoelectricity optical repeater also comprises: logical block;
Described OLT receiver, also for to logical block output detection signal, when this detection signal is SD signal, detection signal is effective when OLT receiver receives the uplink optical signal of the second multiplexing demultiplexing device output, for high level, when this detection signal is LOS signal, detection signal is effective when OLT receiver does not receive the uplink optical signal of the second multiplexing demultiplexing device output, is low level;
Described logical block, for the detection signal receiving, be that SD signal and detection signal are when invalid, indication ONU transceiver and OLT receiver stop carrying out the operation for uplink optical signal, at the detection signal receiving, be SD signal and detection signal when effective, indication ONU transceiver and OLT receiver are carried out the operation for uplink optical signal; At the detection signal receiving, be that LOS signal and detection signal are when effective, indication ONU transceiver and OLT receiver stop carrying out the operation for uplink optical signal, at the detection signal receiving, be LOS signal and detection signal when invalid, indication ONU transceiver and OLT receiver are carried out the operation for uplink optical signal.
23. length as claimed in claim 22, apart from box, is characterized in that, described photoelectricity optical repeater also comprises clock and data recovery unit, clock unit and timing unit again, wherein:
Clock and data recovery unit for receiving the downlink electrical signal of ONU transceiver output, and extracts clock signal from this downlink electrical signal, exports clock signal to clock unit, exports this downlink electrical signal to OLT transceiver;
Clock unit, for according to the requirement of timing unit to timing parameter again, processes the clock signal receiving, and obtains reference clock, and exports described reference clock to again timing unit;
Timing unit again, carries out regularly described uplink electrical signals for receiving the uplink electrical signals of OLT transceiver output, utilize the reference clock receiving again, and exports the uplink electrical signals after regularly again to ONU transceiver.
24. length as claimed in claim 23, apart from box, is characterized in that,
Described logical block, when also effective for the detection signal receiving, indicates timing unit to reset to local register again, or, when the detection signal receiving is invalid, indicate again timing unit to reset to local register.
25. length as claimed in claim 21, apart from box, is characterized in that, described OLT transceiver comprises: signal converter and light diplexer, and wherein, described signal converter has uplink optical signal receiving port and downlink optical signal emission port;
Described smooth diplexer, for the light signal receiving is carried out to separation, when the uplink optical signal receiving from the second multiplexing demultiplexing device, this uplink optical signal is exported to the uplink optical signal receiving port of signal converter, when receiving the downlink optical signal of exporting from the downlink optical signal emission port of signal converter, export this downlink optical signal to second multiplexing demultiplexing device;
Described signal converter, after carrying out opto-electronic conversion and amplify again shaping again for the uplink optical signal that uplink optical signal receiving port is received, export to ONU transceiver, and the downlink electrical signal of ONU transceiver output is carried out to electric light conversion by downlink optical signal emission port, export light diplexer to.
26. length as described in as arbitrary in claim 16-25, apart from box, is characterized in that, described length is applied in the passive optical network PON system of Wave time division mixed multiplexing apart from box.
27. 1 kinds utilize length described in claim 7 apart from box the processing method to uplink optical signal, it is characterized in that, described method comprises:
1:N coupler, when the uplink optical signal receiving from each coupled optical splitter, is exported to photoelectricity optical repeater after the uplink optical signal of each optical splitter output is coupled as to a road;
Photoelectricity optical repeater carries out shaping again and after amplification, exports to OLT again the uplink optical signal of 1:N coupler output.
28. 1 kinds utilize length described in claim 7 apart from box the processing method to downlink optical signal, it is characterized in that, described method comprises:
Photoelectricity optical repeater when the downlink optical signal receiving from optical line terminal OLT, this downlink optical signal is carried out to shaping again and amplify again after export to 1:N coupler;
1:N coupler is divided into N road by the downlink optical signal of the output of photoelectricity optical repeater, and exports to respectively N the optical splitter being connected with self.
29. 1 kinds utilize length described in claim 16 apart from box the processing method to uplink optical signal, it is characterized in that, described method comprises:
1:N coupler, when the uplink optical signal receiving from each coupled optical splitter, is exported to the second multiplexing demultiplexing device after the uplink optical signal of each optical splitter is coupled as to a road;
The second multiplexing demultiplexing device will be decomposed into k road uplink optical signal in the uplink optical signal of 1:N coupler output, and export to respectively k photoelectricity optical repeater, wherein, in the uplink optical signal of described k road, the wavelength of light wave that carries every road uplink optical signal is different, and described k is greater than 1 and be less than or equal to the positive integer of n;
K photoelectricity optical repeater carries out shaping again and after amplification, exports to the first multiplexing demultiplexing device again the uplink optical signal of the second multiplexing demultiplexing device output respectively;
The first multiplexing demultiplexing device is combined into traveling optical signal on the way by the uplink optical signal of k photoelectricity optical repeater output, and exports to H-OLT.
30. 1 kinds utilize length described in claim 16 apart from box the processing method to downlink optical signal, it is characterized in that, described method comprises:
The first multiplexing demultiplexing device is when the downlink optical signal receiving from H-OLT, described downlink optical signal is decomposed into the downlink optical signal on m road, and export to respectively m photoelectricity optical repeater, wherein, in the downlink optical signal on described m road, the wavelength of light wave that carries every road downlink optical signal is different, and described m is greater than 1 and be less than or equal to the positive integer of n;
M photoelectricity optical repeater carries out shaping again and after amplification, exports to the second multiplexing demultiplexing device again the downlink optical signal of the first multiplexing demultiplexing device output respectively;
The second multiplexing demultiplexing device is combined into the downlink optical signal on the m road receiving one road downlink optical signal and exports to 1:N coupler;
1:N coupler is divided into N road by the downlink optical signal of the second multiplexing demultiplexing device output, and exports to respectively N the optical splitter being connected with self.
CN201210213118.3A 2012-06-26 2012-06-26 A kind of photoelectricity optical repeater, length are away from box and the processing method to upper and lower traveling optical signal Active CN103516433B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210213118.3A CN103516433B (en) 2012-06-26 2012-06-26 A kind of photoelectricity optical repeater, length are away from box and the processing method to upper and lower traveling optical signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210213118.3A CN103516433B (en) 2012-06-26 2012-06-26 A kind of photoelectricity optical repeater, length are away from box and the processing method to upper and lower traveling optical signal

Publications (2)

Publication Number Publication Date
CN103516433A true CN103516433A (en) 2014-01-15
CN103516433B CN103516433B (en) 2017-07-11

Family

ID=49898550

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210213118.3A Active CN103516433B (en) 2012-06-26 2012-06-26 A kind of photoelectricity optical repeater, length are away from box and the processing method to upper and lower traveling optical signal

Country Status (1)

Country Link
CN (1) CN103516433B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN105262545A (en) * 2015-11-17 2016-01-20 天津大学 Optical repeater for signal enhancement
CN105763285A (en) * 2016-04-21 2016-07-13 烽火通信科技股份有限公司 ONU for TWDM-PON system, and clock synchronization method based on the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101364844A (en) * 2007-08-10 2009-02-11 华为技术有限公司 Method, system and apparatus realizing remote data transmission in passive optical network
CN101577842A (en) * 2008-05-09 2009-11-11 华为技术有限公司 Optical communication system, optical communication device and optical communication method
CN202004922U (en) * 2011-03-21 2011-10-05 胡朝昱 Passive optical network system on wavelength division multiplexing
CN102332955A (en) * 2011-09-28 2012-01-25 成都优博创技术有限公司 Optical repeater for powerless optical network (PON)
CN102427389A (en) * 2011-09-21 2012-04-25 中国电子科技集团公司第四十四研究所 Bidirectional working optical-electrical-optical repeater

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101364844A (en) * 2007-08-10 2009-02-11 华为技术有限公司 Method, system and apparatus realizing remote data transmission in passive optical network
CN101577842A (en) * 2008-05-09 2009-11-11 华为技术有限公司 Optical communication system, optical communication device and optical communication method
CN202004922U (en) * 2011-03-21 2011-10-05 胡朝昱 Passive optical network system on wavelength division multiplexing
CN102427389A (en) * 2011-09-21 2012-04-25 中国电子科技集团公司第四十四研究所 Bidirectional working optical-electrical-optical repeater
CN102332955A (en) * 2011-09-28 2012-01-25 成都优博创技术有限公司 Optical repeater for powerless optical network (PON)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
CN105763285A (en) * 2016-04-21 2016-07-13 烽火通信科技股份有限公司 ONU for TWDM-PON system, and clock synchronization method based on the same

Also Published As

Publication number Publication date
CN103516433B (en) 2017-07-11

Similar Documents

Publication Publication Date Title
RU2564100C2 (en) Optical network communication system with optical line terminal transceiver and method for operation thereof
CN102075282B (en) System and method for realizing dynamic wavelength scheduling and protection functions in wavelength division multiplexing passive optical network
CN101197638B (en) hybrid passive optical network system
US9306700B2 (en) Method and device for transmitting optical signals
RU2642473C1 (en) Otn system and method of supporting bidirectional transmission of light from optical supervisory channel on one fiber
CN103516431A (en) Photoelectric light repeater, long-distance box, and processing method thereof for uplink/downlink optical signal
CN112911427B (en) Passive optical network optical module, all-optical access network system and control method
JP5689528B2 (en) Long distance box and processing method for uplink / downlink light of long distance box
CN103139670A (en) Coexisting passive optical network system and up and down optical signal transmitting method
TW201526560A (en) Optical router for dynamic wavelength assignment and terminal thereof
CN104467970A (en) Conversion device and method for transmitting signals in mixed mode
WO2013189333A2 (en) Optical transmission system, mode coupler, and optical transmission method
WO2011137645A1 (en) Extender box and processing method for uplink and downlink light thereof
CN103001911B (en) From relevant detection orthogonal frequency division multiplexing passive optical network system and transmission method
CN105391494A (en) Optical transceiver module and 400gbps optical communication system using same
CN104270191A (en) System and method of implementing wavelength multiplexing function and mutual protection function in wavelength division multiplexing convergent access type double fiber ring optical network
CN103516433A (en) Photoelectric optical repeater, long-distance box and method for processing uplink/downlink optical signal
CN102549946B (en) Modulator circuit of optical time domain reflectometer test signal, passive optical network and device
CN105122681A (en) Optical transmitter, transmission method, optical receiver and reception method
CN109982171B (en) Remote multi-hop optical access network and intelligent management system
WO2019140999A1 (en) Wavelength division multiplexing optical transmission apparatus and system, and implementation method
Chen et al. Novel architecture of WDM-PON based on single-fiber ring topology featuring protection and dynamic wavelength assignment
CN104202089A (en) Broadband optic fiber radar data access system based on DWDM (dense wavelength division multiplexing)
CN103916206A (en) Double-WDM-PON network architecture with mutual protection mechanism and method thereof
CN102546005B (en) Passive optical access network system with protecting and bandwidth sharing functions and implementation method thereof

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
TR01 Transfer of patent right

Effective date of registration: 20171017

Address after: 401120 Northern New District of Chongqing municipality Mount Huangshan Middle Road No. 66 A207

Patentee after: Chongqing AOPO Ruisen Technology Co. Ltd.

Address before: 518057 Nanshan District Guangdong high tech Industrial Park, South Road, science and technology, ZTE building, Ministry of Justice

Patentee before: ZTE Corporation

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20171110

Address after: 401120 Chongqing Longxi street, California city garden, Yubei District, 3, 8-5

Patentee after: CHONGQING FANCHAO BRAND MANAGEMENT CO., LTD.

Address before: The 401121 northern New District of Chongqing municipality Mount Huangshan Middle Road No. 66 A207

Patentee before: Chongqing AOPO Ruisen Technology Co. Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20190605

Address after: 221600 Peixian Economic Development Zone, Jiangsu Province, north of Peihe Highway and east of Hanxing Road

Patentee after: Xuzhou Nuclear Run Light Energy Co., Ltd.

Address before: 401120 Chongqing Yubei District Longxi Street 3 California City Garden 8-5

Patentee before: CHONGQING FANCHAO BRAND MANAGEMENT CO., LTD.

TR01 Transfer of patent right