CN104518831A - Optical component and method supporting coexistence of two passive optical networks - Google Patents
Optical component and method supporting coexistence of two passive optical networks Download PDFInfo
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- CN104518831A CN104518831A CN201310463518.4A CN201310463518A CN104518831A CN 104518831 A CN104518831 A CN 104518831A CN 201310463518 A CN201310463518 A CN 201310463518A CN 104518831 A CN104518831 A CN 104518831A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0064—Arbitration, scheduling or medium access control aspects
Abstract
The invention discloses an optical component and a method supporting coexistence of two passive optical networks and relates to the technology of optical line terminals of the passive optical networks. The optical component comprises a laser transmitter of a high-bandwidth passive optical network, a laser transmitter of a low-bandwidth passive optical network, a detection receiver of the high-bandwidth passive optical network, a detection receiver of the low-bandwidth passive optical network and a filter for realizing a splitting and combining function on a light path. By the optical component and the method, the function of coexistence of the two passive optical networks is realized, and the conventional low-bandwidth OLT (optical line terminal) optical component as well as the optical component of the high-rate passive optical network are both supported.
Description
Technical field
The present invention relates to passive optical network optical line terminal technology, specifically, relate to and a kind ofly support the optical assembly that two kinds of passive optical network OLTs coexist and method.
Background technology
Along with the fast development of Fibre Optical Communication Technology, popularizing of intelligent acess technology, the demand of people to bandwidth constantly increases, and makes current passive optical network technique (such as EPON, GPON) technology can not meet the demand of growing broadband services gradually.Therefore the EPON of more high bandwidth (such as 10G EPON, XGPON1) technology can be provided to become the solution of broadband access network of future generation.Consider the smooth upgrade of cost, maintenance and system, the application needs of the EPON of high bandwidth and the EPON of low bandwidth compatible.
With GPON and XGPON1 technology for example, in GPON technology, OLT(optical line terminal) be capital equipment for connecting fiber main line, its OLT optical module is the important component part realizing GPON optical fiber communication.Existing XGPON1OLT technical scheme can realize upstream rate 2.488Gbps(hereinafter referred to as 2.5G), downstream rate 9.95Gbps(is hereinafter referred to as 10G) transfer of data.
At present, GPON technical scheme is mature and stable, business application in a large number.XGPON1 application needs compatible traditional GPON technology, makes ONU(optical network unit) can according to concrete applied environment selection scheme.
Summary of the invention
The present invention proposes a kind ofly to support the optical assembly that two kinds of EPONs coexist and method, to solve the technical problem from low bandwidth EPON to high bandwidth EPON smooth upgrade.
In order to solve the problem, the invention discloses a kind of optical assembly that two kinds of EPONs coexist of supporting, comprising:
The generating laser of high bandwidth EPON, the generating laser of low bandwidth EPON, the search receiner of high bandwidth EPON, the search receiner of low bandwidth EPON and in light path, realize the filter plate closing light splitting function, wherein:
The generating laser of described high bandwidth EPON, launches the downlink optical signal of a road high bandwidth EPON;
The generating laser of described low bandwidth EPON, launches the downlink optical signal of a road low bandwidth EPON;
Described filter plate, on optical signal launch direction, by the generating laser of described high bandwidth EPON, the downlink optical signal of the high bandwidth EPON launched, and the generating laser of described low bandwidth EPON, the downlink optical signal of the low bandwidth EPON launched synthesizes a road light signal, on light signal receive direction, downlink optical signal is separated into the downlink optical signal of high bandwidth EPON and the downlink optical signal of low bandwidth EPON;
The search receiner of described high bandwidth EPON, receives the downlink optical signal of high bandwidth EPON in downlink optical signal by described filter plate;
The search receiner of described low bandwidth EPON, receives the downlink optical signal of low bandwidth EPON in downlink optical signal by described filter plate.
Alternatively, above-mentioned optical assembly comprises multiple filter plate, and wherein, each filter plate is respectively used to the light signal being separated and synthesizing different wave length in high low bandwidth EPON.
Alternatively, in above-mentioned optical assembly, on light signal receive direction, downlink optical signal by after different filter plates, isolates the light signal of different wave length successively successively.
Alternatively, in above-mentioned optical assembly, on light signal receive direction, when downlink optical signal is by first-level filtering wave plate, isolate two groups of light signals, when often organizing light signal respectively by corresponding secondary filter sheet, isolate the light signal of respective wavelength.
Alternatively, in above-mentioned optical assembly, when described optical assembly supports that GPON and XGPON1 coexists, the generating laser of described high bandwidth EPON adopts 10G EML Electroabsorption Modulated Laser, the generating laser of described low bandwidth EPON adopts the search receiner of 2.5G Distributed Feedback Laser, described high bandwidth EPON to adopt 2.5G APD detector, the search receiner of described low bandwidth EPON adopts 1.25G APD detector.
The invention also discloses a kind of method that two kinds of EPONs coexist of supporting, comprising:
The optical assembly supporting two kinds of EPONs to coexist is when launching downlink optical signal, launch the downlink optical signal of a road high bandwidth EPON, launch the downlink optical signal of a road low bandwidth EPON, the filter plate in described optical assembly synthesizes a road downlink optical signal and sends simultaneously;
The optical assembly supporting two kinds of EPONs to coexist is when receiving downlink optical signal, by described filter plate, one road downlink optical signal is separated into the downlink optical signal of high bandwidth EPON and the downlink optical signal of low bandwidth EPON, then receives respectively.
Alternatively, in said method, described optical assembly comprises multiple filter plate, is separated and synthesizes the light signal of different wave length in high low bandwidth EPON by different filter plates.
Alternatively, in said method, on light signal receive direction, downlink optical signal by different filter plates, isolates the light signal of different wave length successively successively.
Alternatively, in said method, on light signal receive direction, downlink optical signal, by first-level filtering wave plate, isolates two groups of light signals, often organizes light signal again respectively by corresponding secondary filter sheet, isolates the light signal of respective wavelength.
Alternatively, in said method, when described optical assembly supports that GPON and XGPON1 coexists, adopt the downlink optical signal of the downlink optical signal of 10G EML Electroabsorption Modulated Laser transmitting high bandwidth EPON, employing 2.5G Distributed Feedback Laser transmitting low bandwidth EPON, adopt 2.5G APD detector to receive the downlink optical signal of high bandwidth EPON, the downlink optical signal of employing 1.25G APD detector reception low bandwidth EPON.
Technical scheme achieves the function that two kinds of EPON optical assemblies coexist, and has both supported traditional low bandwidth OLT optical assembly technical scheme, also supports the optical assembly technical scheme of two-forty EPON.The smooth upgrade of system can be realized, effectively reduce system upgrade cost and the O&M cost of operator.Accompanying drawing explanation
Fig. 1 is the system configuration schematic diagram of application scenarios of the present invention;
Fig. 2 is the system configuration schematic diagram of optimal enforcement example of the present invention;
Fig. 3 is optical assembly theory diagram in optimal enforcement example of the present invention;
Fig. 4 is the schematic diagram that in optimal enforcement example of the present invention, partial wave scheme one is closed in optical device inside;
Fig. 5 is the schematic diagram that in optimal enforcement example of the present invention, partial wave scheme two is closed in optical device inside;
Fig. 6 is the functional schematic block diagram of optimal enforcement example one of the present invention;
Fig. 7 is the functional characteristic definition of filter plate 1,2,3,4,5 in optimal enforcement example one of the present invention;
Fig. 8 is the functional schematic block diagram of optimal enforcement example two of the present invention;
Fig. 9 is the functional characteristic definition of filter plate 1,2,3,4,5 in optimal enforcement example two of the present invention.
Four-headed arrow in above-mentioned accompanying drawing represent corresponding wavelength light can this light path forward and reverse on transmission, do not represent the actual transmissions direction of light.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, hereafter will be described in further detail technical solution of the present invention by reference to the accompanying drawings.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine arbitrarily mutually.
Embodiment 1
Present inventor proposes the optical assembly of a kind of formula OLT that coexists that can be operated in two kinds of EPON situations, it comprises two-way downlink optical signal radiating portion (the laser radiating portion of high bandwidth EPON and low bandwidth EPON) and two-way uplink burst mode optical signal receiving unit (the detector receiving unit of high bandwidth EPON and low bandwidth EPON), under the passive optical network that both can be operated in high bandwidth also can be operated in the passive optical network of low bandwidth, thus solve from low bandwidth EPON to the technical problem of high bandwidth EPON smooth upgrade.
Particularly, combination that what the present embodiment provided use up at least comprises the generating laser of high bandwidth EPON, the generating laser of low bandwidth EPON, the search receiner of high bandwidth EPON, the search receiner of low bandwidth EPON and filter plate, wherein:
The generating laser of high bandwidth EPON, launches the downlink optical signal of a road high bandwidth EPON;
The generating laser of low bandwidth EPON, launches the downlink optical signal of a road low bandwidth EPON;
Filter plate, on optical signal launch direction, by the generating laser of described high bandwidth EPON, the downlink optical signal of the high bandwidth EPON launched, and the generating laser of described low bandwidth EPON, the downlink optical signal of the low bandwidth EPON launched synthesizes a road light signal, with on light signal receive direction, downlink optical signal is separated into the downlink optical signal of high bandwidth EPON and the downlink optical signal of low bandwidth EPON;
The search receiner of high bandwidth EPON, receives the downlink optical signal of high bandwidth EPON in downlink optical signal;
The search receiner of low bandwidth EPON, receives the downlink optical signal of high bandwidth EPON in downlink optical signal.
Wherein, the generating laser of high bandwidth EPON: the signal of telecommunication of high bandwidth EPON is converted to light signal and sends.
The generating laser of low bandwidth EPON: the signal of telecommunication of low bandwidth EPON is converted to light signal and sends.
The search receiner of high bandwidth EPON: the light signal of the high bandwidth EPON received is converted into current signal by photodiode and delivers to corresponding burst mode trans-impedance amplifier, is converted into differential voltage signal and delivers to corresponding burst limiting amplifier.
The search receiner of low bandwidth EPON: the light signal of the low bandwidth EPON received is converted into current signal by photodiode and delivers to corresponding burst mode trans-impedance amplifier, is converted into differential voltage signal and delivers to corresponding burst limiting amplifier.
Filter plate comprises: realize in the optical path closing a point wave energy, prevent the filter plate of optical crosstalk.Propose the conjunction that two kinds of different schemes realize optical device inside in the present embodiment and divide wave energy, different schemes realizes in the particular embodiment.The spectral characteristic of each filter plate is different in various embodiments, will specifically describe in optimal enforcement example.
In practical application, coexisting for GPON and XGPON1, supports the optical assembly of the OLT that GPON and XGPON1 coexists to comprise optical interface, 10G EML Electroabsorption Modulated Laser radiating portion, 2.5G Distributed Feedback Laser radiating portion, 2.5G APD detector receiving unit, 1.25G APD detector receiving unit and in light path, realizes closing the filter plate part of light splitting function.
Described 10G EML Electroabsorption Modulated Laser radiating portion comprises: the 10G XGPON1 signal of telecommunication is converted to light signal and sends by 10G1577nm EML laser, and its built-in TEC ensures the working temperature constant of laser.
Described 2.5G DFB radiating portion comprises: the GPON signal of telecommunication is converted to light signal and sends by 2.5G1490nm Distributed Feedback Laser.
Described 2.5G APD detector receiving unit comprises: the light signal received is converted into current signal by avalanche photodide and delivers to 2.5G burst mode trans-impedance amplifier, is converted into differential voltage signal and delivers to 2.5G burst limiting amplifier.
Described 1.25G APD detector receiving unit comprises: the light signal received is converted into current signal by avalanche photodide and delivers to 1.25G burst mode trans-impedance amplifier, is converted into differential voltage signal and delivers to 1.25G burst limiting amplifier.
Below in conjunction with accompanying drawing, preferred embodiment one of the present invention is described.
As shown in Figure 1, be system configuration theory diagram in this preferred embodiment.The optical assembly that the OLT of a support of this example design two kinds of EPONs coexists, supports in symbiotic system to use low bandwidth EPON ONU and high bandwidth EPON ONU.What this example related to coexist, and optical assembly can work in both modes, and one is high bandwidth OLT pattern, and its up-downgoing wavelength is up and first via downstream wavelength referred to as the first via; Another kind is low bandwidth OLT pattern, and its up-downgoing wavelength is up and the second tunnel downstream wavelength referred to as the second tunnel.As shown in Figure 2, be the system architecture diagram that instantiation GPON and XGPON1 coexists.The optical assembly that a GPON OLT and XGPON1OLT coexists, supports in symbiotic system to use GPON ONU and XGPON1ONU.The optical assembly that coexists in example can work in both modes, and one is GPON OLT pattern, upstream rate 1.25Gbps, adopts the burst reception of 1310nm centre wavelength, downstream rate 2.5Gbps, adopts the radiating portion of 1490nm centre wavelength continuous mode; Another kind is XGPON1OLT pattern, upstream rate 2.5Gbps, adopts the burst reception of 1270nm centre wavelength, downstream rate 10Gbps, adopts the radiating portion of the long continuous mode of wave making in 1577nm.
As shown in Figure 3, be the theory diagram that this example supports the optical assembly that two kinds of passive optical networks coexist, comprise optical interface, first via downlink part, the second tunnel downlink part, first via uplink receiving part, the second road uplink receiving part and in light path, realize the filter plate part of light splitting function.
As shown in Figure 4, be that in this example, optical assembly realizes the schematic diagram that different wave length closes partial wave function scheme one.Comprise optical interface, in light path, realize closing the filter plate 1,2,3 of point wave energy, and be operated in the optical device of different wave length section.Its general principle is separated with wavelength 2,3,4 by wavelength 1 by filter plate 1, and wavelength 2 is separated with wavelength 3,4 by filter plate 2, and wavelength 3 is separated with wavelength 4 by filter plate 3, thus realize closing a point wave energy in optical device inside.In specific implementation process, can according to the position of each optical device of actual conditions reasonable arrangement and the precedence of closing partial wave.
As shown in Figure 6: the functional schematic block diagram being preferred embodiment one of the present invention.The scheme one shown in conjunction partial wave employing figure tetra-of light path realizes.Comprise optical interface, 10G radiating portion, 2.5G radiating portion, 2.5G receiving unit, 1.25G receiving unit and filter plate part.
Described optical interface adopts SC Receptacle pattern.
Described 10G radiating portion comprises: 10G1577nm laser and built-in TEC controller part.In example of the present invention, 10G laser adopts EML laser, converts electrical signals to light signal.The built-in temperature of TEC controller to EML laser controls, and keeps laser output wavelength to stablize, meets system requirements.
Described 2.5G radiating portion comprises: 2.5G Distributed Feedback Laser.Adopt 2.5G1490nm Distributed Feedback Laser in example of the present invention, the 2.5G signal of telecommunication is converted to light signal.
Described 2.5G receiving unit comprises: 2.5G APD(avalanche photodide) detector.In example of the present invention, the 2.5G light signal received is converted to current signal by APD detector.
Described 1.25G receiving unit comprises: 1.25G APD(avalanche photodide) detector.In example of the present invention, the 1.25G light signal received is converted to current signal by APD detector.
Described filter plate part comprises filter plate 1,2,3,4,5.In example of the present invention, filter plate 1,2,3 is 45 ゜ filter plates; The utilizing emitted light signal of the receiving optical signals of 1270nm and 1310nm receiving optical signals and 1490nm, 1577nm is carried out conjunction partial wave by filter plate 1, ensures that 1270nm receiving optical signals and other light signals are along respective optic path; The utilizing emitted light signal of the receiving optical signals of 1310nm and 1490nm, 1577nm is carried out conjunction partial wave by filter plate 2, ensures that 1310nm receiving optical signals and 1490nm, 1577nm utilizing emitted light signal are along respective optic path; The light signal of 1490nm and 1577nm is carried out conjunction partial wave by filter plate 3, ensures that 1490nm and 1577nm light signal does not produce crosstalk; Filter plate 4,5 is 0 ゜ filter plate; The light signal that filter plate 4 will filter beyond 1270nm Received signal strength wave band, prevents the crosstalk that other light signals receive XGPON1; The light signal that filter plate 5 will filter beyond 1310nm Received signal strength wave band, prevents the crosstalk that other light signals receive GPON.
Figure 7 shows that the functional characteristic figure of filter plate 1,2,3,4,5 in instantiation one.Particularly, the transmission wave band of filter plate 1,2,3,4,5 and reflected waveband as shown in table 1.
Table 1 is the transmittance and reflectance frequency-range table of each filter plate in instantiation one
| Filter plate | Transmission wave band (nm) | Reflected waveband (nm) |
| 1 | >1290 | 1260～1280 |
| 2 | >1350 | 1260～1330 |
| 3 | >1520 | 1480～1500 |
| 4 | 1260～1280 | >1290 |
| 5 | 1290～1330 | 1260～1280，>1350 |
As can be seen from Table 1, filter plate 1 for 1270 receiving optical signals total reflections, for 1310nm, 1490, the whole transmission of 1577nm light signal; Filter plate 2 for 1310 receiving optical signals total reflections, for 1490, the whole transmission of 1577nm light signal; Filter plate 3 all reflects for 1490nm light signal, the whole transmission of 1577nm light signal; Filter plate 4 is for the whole transmission of 1270nm light signal, and all the other wave band optical signals all reflect; Filter plate 5 is for the whole transmission of 1310nm light signal, and all the other wave band optical signals all reflect.
Below in conjunction with accompanying drawing 5, Fig. 8 and Fig. 9, preferred embodiment two is described.
As shown in Figure 5, be that in the present invention, optical assembly realizes the schematic diagram that different wave length closes partial wave function scheme two.Comprise optical interface, in light path, realize closing the filter plate 1,2,3 of point wave energy, and be operated in the optical device of different wave length section.Its general principle is by filter plate 1(and first-level filtering wave plate) wavelength 1,4 is separated with wavelength 2,3, then filter plate 2,3(and secondary filter sheet) respective again wavelength 1,4 to be separated with wavelength 2,3, thus realize closing a point wave energy in optical device inside.In specific implementation process, can according to the position of each optical device of actual conditions reasonable arrangement and the precedence of closing partial wave.
As shown in Figure 8: the functional schematic block diagram being preferred embodiment two of the present invention.The scheme two shown in conjunction partial wave employing figure five of light path realizes.Comprise optical interface, 10G radiating portion, 2.5G radiating portion, 2.5G receiving unit, 1.25G receiving unit and filter plate part.
Described optical interface adopts SC Receptacle pattern.
Described 10G radiating portion comprises: 10G1577nm laser and built-in TEC controller part.In example of the present invention, 10G laser adopts EML laser, converts electrical signals to light signal.The built-in temperature of TEC controller to EML laser controls, and keeps laser output wavelength to stablize, meets system requirements.
Described 2.5G radiating portion comprises: 2.5G Distributed Feedback Laser.Adopt 2.5G1490nm Distributed Feedback Laser in example of the present invention, the 2.5G signal of telecommunication is converted to light signal.
Described 2.5G receiving unit comprises: 2.5G APD(avalanche photodide) detector.In example of the present invention, the 2.5G light signal received is converted to current signal by APD detector.
Described 1.25G receiving unit comprises: 1.25G APD(avalanche photodide) detector.In example of the present invention, the 1.25G light signal received is converted to current signal by APD detector.
Described filter plate part comprises filter plate 1,2,3,4,5.In example of the present invention, filter plate 1,2,3 is 45 ゜ filter plates; 1270nm receiving optical signals, 1577nm utilizing emitted light signal and 1310nm receiving optical signals, 1490nm utilizing emitted light signal are carried out conjunction partial wave by filter plate 1, ensure that 1270nm receiving optical signals, 1577nm utilizing emitted light signal and 1310nm receiving optical signals, 1490nm utilizing emitted light signal are along respective optic path; 1270nm receiving optical signals and 1577nm utilizing emitted light signal are carried out conjunction partial wave by filter plate 2, ensure that 1270nm and 1577nm light signal does not produce crosstalk; 1310nm receiving optical signals and 1490nm utilizing emitted light signal are carried out conjunction partial wave by filter plate 3, ensure that 1310nm and 1490nm light signal does not produce crosstalk.Filter plate 4 and filter plate 5 are 0 ゜ filter plate; The light signal that filter plate 4 will filter beyond 1270nm Received signal strength wave band, prevents the crosstalk that other light signals receive XGPON1; The light signal that filter plate 5 will filter beyond 1310nm Received signal strength wave band, prevents the crosstalk that other light signals receive GPON.
Be illustrated in figure 9 the functional characteristic figure of filter plate 1,2,3,4,5 in instantiation two.Particularly, the transmission wave band of filter plate 1,2,3,4,5 and reflected waveband as shown in table 2.
Table 2 is the transmittance and reflectance frequency-range table of each filter plate in instantiation two
| Filter plate | Transmission wave band (nm) | Reflected waveband (nm) |
| 1 | 1260～1280＆1570～1585 | 1290～1330＆1480～1500 |
| 2 | 1570～1585 | 1260～1280 |
| 3 | 1290～1330 | 1480～1500 |
| 4 | 1260～1280 | >1290 |
| 5 | 1290～1330 | 1260～1280，>1350 |
As can be seen from Table 2, filter plate 1, for 1270nm receiving optical signals and 1577nm utilizing emitted light signal total transmissivity, all reflects for 1310nm, 1490nm light signal; Filter plate 2 for the total reflection of 1270nm light signal, for the whole transmission of 1577nm light signal; Filter plate 3 all reflects for 1490nm light signal, the whole transmission of 1310nm light signal; Filter plate 4 is for the whole transmission of 1270nm light signal, and all the other wave band optical signals all reflect; Filter plate 5 is for the whole transmission of 1310nm light signal, and all the other wave band optical signals all reflect.
Embodiment 2
The present embodiment provides a kind of method that two kinds of EPONs coexist of supporting, can realize according to the optical assembly of above-described embodiment 1.Particularly, the method comprises:
The optical assembly supporting two kinds of EPONs to coexist is when launching downlink optical signal, launch the downlink optical signal of a road high bandwidth EPON, launch the downlink optical signal of a road low bandwidth EPON, the filter plate in described optical assembly synthesizes a road downlink optical signal and sends simultaneously;
The optical assembly supporting two kinds of EPONs to coexist is when receiving downlink optical signal, by described filter plate, one road downlink optical signal is separated into the downlink optical signal of high bandwidth EPON and the downlink optical signal of low bandwidth EPON, then receives respectively.
Wherein, optical assembly comprises multiple filter plate, can be separated and synthesize the light signal of different wave length in high low bandwidth EPON by different filter plates.
In practical application, on light signal receive direction, downlink optical signal successively by after different filter plates, can isolate the light signal of different wave length successively.Downlink optical signal also can be first by first-level filtering wave plate, isolates two or more sets light signals, and often organizes light signal again respectively by corresponding secondary filter sheet, isolate the light signal of respective wavelength.
The present embodiment proposes, when above-mentioned optical assembly supports that GPON and XGPON1 coexists, the downlink optical signal of the downlink optical signal of 10GEML Electroabsorption Modulated Laser transmitting high bandwidth EPON, employing 2.5GDFB laser transmitting low bandwidth EPON can be adopted, adopt 2.5G APD detector to receive the downlink optical signal of high bandwidth EPON, the downlink optical signal of employing 1.25G APD detector reception low bandwidth EPON.
As can be seen from above-described embodiment, technical scheme devises the OLT optical assembly that two kinds of EPONs coexist, and coexisting as optimal enforcement example with GPON and XGPON1 system, provides two kinds of concrete enforcement use-case schemes.Both support traditional GPON optical assembly technical scheme, also support XGPON1 high rate optical component technology scheme.The smooth upgrade of system can be realized, effectively reduce system upgrade cost and the O&M cost of operator.
The all or part of step that one of ordinary skill in the art will appreciate that in said method is carried out instruction related hardware by program and is completed, and described program can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can use one or more integrated circuit to realize.Correspondingly, each module/unit in above-described embodiment can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.The application is not restricted to the combination of the hardware and software of any particular form.
The above, be only preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. support the optical assembly that two kinds of EPONs coexist, it is characterized in that, comprising:
The generating laser of high bandwidth EPON, the generating laser of low bandwidth EPON, the search receiner of high bandwidth EPON, the search receiner of low bandwidth EPON and in light path, realize the filter plate closing light splitting function, wherein:
The generating laser of described high bandwidth EPON, launches the downlink optical signal of a road high bandwidth EPON;
The generating laser of described low bandwidth EPON, launches the downlink optical signal of a road low bandwidth EPON;
Described filter plate, on optical signal launch direction, by the generating laser of described high bandwidth EPON, the downlink optical signal of the high bandwidth EPON launched, and the generating laser of described low bandwidth EPON, the downlink optical signal of the low bandwidth EPON launched synthesizes a road light signal, on light signal receive direction, downlink optical signal is separated into the downlink optical signal of high bandwidth EPON and the downlink optical signal of low bandwidth EPON;
The search receiner of described high bandwidth EPON, receives the downlink optical signal of high bandwidth EPON in downlink optical signal by described filter plate;
The search receiner of described low bandwidth EPON, receives the downlink optical signal of low bandwidth EPON in downlink optical signal by described filter plate.
2. optical assembly as claimed in claim 1, is characterized in that,
Described optical assembly comprises multiple filter plate, and wherein, each filter plate is respectively used to the light signal being separated and synthesizing different wave length in high low bandwidth EPON.
3. optical assembly as claimed in claim 2, is characterized in that, on light signal receive direction, downlink optical signal by after different filter plates, isolates the light signal of different wave length successively successively.
4. optical assembly as claimed in claim 2, is characterized in that, on light signal receive direction, when downlink optical signal is by first-level filtering wave plate, isolate two groups of light signals, when often organizing light signal respectively by corresponding secondary filter sheet, isolate the light signal of respective wavelength.
5. the optical assembly as described in any one of Claims 1-4, it is characterized in that, when described optical assembly supports that GPON and XGPON1 coexists, the generating laser of described high bandwidth EPON adopts the generating laser of 10GEML Electroabsorption Modulated Laser, described low bandwidth EPON to adopt the search receiner of 2.5GDFB laser, described high bandwidth EPON to adopt the search receiner employing 1.25G APD detector of 2.5G APD detector, described low bandwidth EPON.
6. support the method that two kinds of EPONs coexist, it is characterized in that, comprising:
The optical assembly supporting two kinds of EPONs to coexist is when launching downlink optical signal, launch the downlink optical signal of a road high bandwidth EPON, launch the downlink optical signal of a road low bandwidth EPON, the filter plate in described optical assembly synthesizes a road downlink optical signal and sends simultaneously;
The optical assembly supporting two kinds of EPONs to coexist is when receiving downlink optical signal, by described filter plate, one road downlink optical signal is separated into the downlink optical signal of high bandwidth EPON and the downlink optical signal of low bandwidth EPON, then receives respectively.
7. method as claimed in claim 6, is characterized in that,
Described optical assembly comprises multiple filter plate, is separated and synthesizes the light signal of different wave length in high low bandwidth EPON by different filter plates.
8. method as claimed in claim 7, is characterized in that, on light signal receive direction, downlink optical signal by different filter plates, isolates the light signal of different wave length successively successively.
9. method as claimed in claim 7, is characterized in that, on light signal receive direction, downlink optical signal, by first-level filtering wave plate, isolates two groups of light signals, often organizes light signal again respectively by corresponding secondary filter sheet, isolates the light signal of respective wavelength.
10. the method as described in any one of claim 6 to 9, it is characterized in that, when described optical assembly supports that GPON and XGPON1 coexists, adopt the downlink optical signal of the downlink optical signal of 10G EML Electroabsorption Modulated Laser transmitting high bandwidth EPON, employing 2.5G Distributed Feedback Laser transmitting low bandwidth EPON, adopt 2.5G APD detector to receive the downlink optical signal of high bandwidth EPON, the downlink optical signal of employing 1.25G APD detector reception low bandwidth EPON.
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| CN201310463518.4A CN104518831A (en) | 2013-09-30 | 2013-09-30 | Optical component and method supporting coexistence of two passive optical networks |
| PCT/CN2014/075976 WO2014180253A1 (en) | 2013-09-30 | 2014-04-22 | Optical component and method supporting existence of two kinds of passive optical networks |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106470075A (en) * | 2015-08-20 | 2017-03-01 | 中兴通讯股份有限公司 | The OLT integrated module of optical transceiver, the method and system of the multiple PON of process |
| CN107219593A (en) * | 2017-07-06 | 2017-09-29 | 成都光创联科技有限公司 | Multiport method for packaging photoelectric device and the multiport photoelectric device based on this method |
| CN113917628A (en) * | 2021-09-15 | 2022-01-11 | 武汉华工正源光子技术有限公司 | Combo Plus OLT optical device |
| WO2023040478A1 (en) * | 2021-09-14 | 2023-03-23 | 中兴通讯股份有限公司 | Single-fiber four-way optical transceiver apparatus and optical module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101568046A (en) * | 2009-06-09 | 2009-10-28 | 成都优博创技术有限公司 | Method for realizing coexistence of unsymmetrical 10GEPON and GEPON optical network terminals and system thereof |
| CN201388203Y (en) * | 2009-04-16 | 2010-01-20 | 深圳新飞通光电子技术有限公司 | Single fiber bidirectional light transmitting-and-receiving integral assembly |
| CN102013921A (en) * | 2009-09-04 | 2011-04-13 | 中兴通讯股份有限公司 | WDM (Wavelength Division Multiplexing) filter for PON (Passive Optical Network) |
| CN202159164U (en) * | 2011-08-02 | 2012-03-07 | 深圳新飞通光电子技术有限公司 | Single fiber bidirectional light transmit-receive integrated assembly used in optical line terminal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101309191B (en) * | 2008-05-30 | 2012-08-22 | 北京北方烽火科技有限公司 | PON system mixing TDMA and WDM having function of local area network |
-
2013
- 2013-09-30 CN CN201310463518.4A patent/CN104518831A/en active Pending
-
2014
- 2014-04-22 WO PCT/CN2014/075976 patent/WO2014180253A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201388203Y (en) * | 2009-04-16 | 2010-01-20 | 深圳新飞通光电子技术有限公司 | Single fiber bidirectional light transmitting-and-receiving integral assembly |
| CN101568046A (en) * | 2009-06-09 | 2009-10-28 | 成都优博创技术有限公司 | Method for realizing coexistence of unsymmetrical 10GEPON and GEPON optical network terminals and system thereof |
| CN102013921A (en) * | 2009-09-04 | 2011-04-13 | 中兴通讯股份有限公司 | WDM (Wavelength Division Multiplexing) filter for PON (Passive Optical Network) |
| CN202159164U (en) * | 2011-08-02 | 2012-03-07 | 深圳新飞通光电子技术有限公司 | Single fiber bidirectional light transmit-receive integrated assembly used in optical line terminal |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106470075A (en) * | 2015-08-20 | 2017-03-01 | 中兴通讯股份有限公司 | The OLT integrated module of optical transceiver, the method and system of the multiple PON of process |
| CN107219593A (en) * | 2017-07-06 | 2017-09-29 | 成都光创联科技有限公司 | Multiport method for packaging photoelectric device and the multiport photoelectric device based on this method |
| WO2023040478A1 (en) * | 2021-09-14 | 2023-03-23 | 中兴通讯股份有限公司 | Single-fiber four-way optical transceiver apparatus and optical module |
| CN113917628A (en) * | 2021-09-15 | 2022-01-11 | 武汉华工正源光子技术有限公司 | Combo Plus OLT optical device |
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| WO2014180253A1 (en) | 2014-11-13 |
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