CN206686327U - A kind of GPON network transmission lines luminous power compensation device - Google Patents
A kind of GPON network transmission lines luminous power compensation device Download PDFInfo
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- CN206686327U CN206686327U CN201720359177.XU CN201720359177U CN206686327U CN 206686327 U CN206686327 U CN 206686327U CN 201720359177 U CN201720359177 U CN 201720359177U CN 206686327 U CN206686327 U CN 206686327U
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- signal
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Abstract
The utility model discloses a kind of GPON network transmission lines luminous power compensation device, including OLT device, the OLT device is descending to send the continuous optical signal of wavelength, continuous wavelength optical signal is amplified by the trunking scheme of OEO amplification modules, the OEO amplification modules integrated electro conversion receiver, electro-optic conversion transmitter, service signal shaping and amplification module and service signal time block, the photoelectric conversion receiver electrically connects with the service signal shaping and amplification module, the service signal shaping and amplification module are connected with the service signal time block, the service signal time block electrically connects with the electro-optic conversion transmitter.The utility model can effectively lift the luminous power of transmission line, extend networking transmission range, increase splitting ratio, improve single PON port services carrying quantity.
Description
Technical field
It the utility model is related to field of network transmission, more particularly to a kind of compensation of GPON network transmission lines luminous power
Device.
Background technology
GPON (Gigabit-Capable PON) technology is the latest generation broadband passive based on ITU-TG.984.x standards
Light Integrated access standard, there is high bandwidth, high efficiency, large coverage, user interface is abundant to wait many merits, by most of fortune
Battalion business is considered as realization and accesses the desirable technique that network service is broadband, and synthesization is transformed.In GPON systems, management information bank
(MIB, Management Information Base, MIB) is represented by management entity (Managed Entity, ME), institute
Management entity is called, is to the resource of optical network unit (Optical Network Unit, ONU) or being abstracted for business.Optical link
, can be to all kinds of ME reality when terminal (Optical Line Terminal, OLT) carries out remote management by OMCI agreements to ONU
Example carries out the operation such as GET/SET.
With the development of access network high bandwidth, GPON systems are as realizing that the most practical solution of fiber to the home obtains greatly
Quantity research.Because GPON ONU are the modular converters of GPON access system user terminal photosignals, domestic consumer finally decide
The properties of acquisition, as above downstream rate, service type, bandwidth availability ratio etc..
Utility model content
For above-mentioned technical problem, the utility model proposes a kind of GPON network transmission lines luminous power compensation device,
The utility model is amplified shaping by the way of OEO to signal, while using downstream signal extraction clock pair signals again
Regularly, realize that signal 3R amplifies, meet to the reduction of uplink burst optical signal time slot and descending 1490nm and up 1310nm light work(
Rate is amplified, and can effectively lift the luminous power of transmission line, extends networking transmission range, is increased splitting ratio, is improved single PON port services
Quantity is carried, passive wavelength division module is internally integrated, meets the straight-through jumper connection of 1550nm and 1620nm wavelength.
The utility model is achieved through the following technical solutions：
A kind of GPON network transmission lines luminous power compensation device, including OLT device, the descending send wave of OLT device
Long continuous optical signal, continuous wavelength optical signal is amplified by the trunking scheme of OEO amplification modules, the OEO amplification modules collection
Into photoelectric conversion receiver, electro-optic conversion transmitter, service signal shaping and amplification module and service signal time block, institute
State photoelectric conversion receiver to electrically connect with the service signal shaping and amplification module, the service signal shaping and amplification module
It is connected with the service signal time block, the service signal time block electrically connects with the electro-optic conversion transmitter.
Further, a photoelectric conversion receiver, the photoelectric conversion receiver built in the photoelectric conversion receiver
The continuous optical signal of wavelength that meets luminous power size will be received and be converted into electric signal.
Further, the laser of an electro-optic conversion built in the electro-optic conversion transmitter, converts electrical signals into ripple
The continuous optical signal output of wavelength of long constant size.
Further, the service signal shaping and amplification module are driven by externally fed electric power source pair of module electric signal,
Respectively to the level shaping of input electrical signal and drive amplification, driving emitting laser realizes that continuous optical signal shaping and is put again
Big output.
Further, the service signal time block is internally integrated clock modules, and the clock modules are to business number
Timing Processing is synchronized according to the clock part of frame structure, it is ensured that the caused time delay and time slot root of two-way continuous wavelength optical signal
Retimed according to the timer of inside, it is ensured that error code will not be produced by being sent and received in OLT device side.
Further, in addition to time slot recovery module, the time slot recovery module use FPGA modes to uplink and downlink
Signal carries out the analysis of clock and the reduction of time slot of frame structure.
Further, in addition to external power supply module, the external power supply module external power source are converted into by converter
Direct current 5V voltages.
The utility model compared with prior art, has following technique effect：
The utility model uses analysis and time slot of the FPGA modes to the clock of uplink and downlink signal progress frame structure
Reduction, meet to support the relaying enlarging function of arbitrary network position, support more table apparatus Cascaded amplification functions.
Device internal agreement processing of the present utility model performs GPON (ITU-T G984.x ＆ ITU-T are G.988) mark
Standard, business transparent transmission, it can be applicable to any producer GPON networks and meet that the compensation amplification of circuit luminous power requires.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art.It is clear that drawings in the following description are only
Some embodiments of the utility model, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is fundamental diagram of the present utility model；
Fig. 2 is the structural representation of embodiment one of the present utility model；
Fig. 3 is the structural representation of embodiment two of the present utility model.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.
Fig. 1 is fundamental diagram of the present utility model；As shown in figure 1, the descending transmission 1490nm ripples of GPON network OLT devices
Long continuous optical signal, each descending ONU terminal device, the up transmission of end ONU equipment are arrived by optical splitter light splitting
The burst luminous signal of 1310nm wavelength, do not have an ONU equipment according to logical sum time slot burst luminous signal, meet on each ONU
Capable optical signal reaches OLT sides and does not produce conflict.According to GPON networks OLT device and the communication protocol of ONU group, GPON network light
Power compensating device is mended to independently carrying out the amplification of OEO luminous powers to 1490nm and 1310nm optical signals using wavelength-division isolation technology
Repay, while used wavelength-division isolation technology meets the straight-through jumper connection of 1550nm and 1620nm wavelength.
Demultiplex is carried out to transmission line wavelength using WDM wavelength-division multiplex techniques and multiplex is transmitted.OLT sides WDM is using passive
Radio frequency channel isolation technology 1490nm, 1550nm, 1620nm wavelength channels separated transmission descending to OLT directions, to up amplification
1310nm wavelength channels afterwards carry out multiplexing transmission.Optical splitter side WDM is using passive radio frequency channel isolation technology to descending amplification
1490nm, 1550nm, 1620nm wavelength channels multiplexing transmission afterwards, separation biography is carried out to up 1310nm wavelength channels
It is defeated.The progress light compensation amplification of OEO image intensifers is sent into the optical signal of the 1310nm and 1490nm wavelength of both ends WDM separation,
1550nm, 1620nm wavelength channels pass through naked fibre transparent transmission.
Embodiment one
Fig. 2 is the structural representation of embodiment one of the present utility model；It is descending for 1490nm optical signals, OLT device
The continuous optical signal of 1490nm wavelength is sent, OEO is used to descending 1490nm（Optical-electrical-optical）Trunking scheme is amplified, OEO amplification moulds
Block integrated electro conversion receiver（R）, electro-optic conversion transmitter（T）, service signal shaping, amplification module, service signal timing
Module.
A photoelectricity dress changes receiver built in photoelectric conversion receiver, and the 1490nm light that reception is met luminous power size is believed
Number it is converted into electric signal.Electric signal, is changed into constant size by the laser of an electro-optic conversion built in electro-optic conversion transmitter
1490nm wavelength channels export.Service signal shaping and amplification module are driven by externally fed electric power source pair of module electric signal,
To the level shaping of input electrical signal and drive amplification, driving emitting laser realizes continuous optical signal, and shaping and amplification are defeated again
Go out.Service signal time block：According to OLT and ONU standard communication protocols, after 1490nm signal opto-electronic conversions, it is internally integrated
Clock modules synchronize Timing Processing to the clock part of business datum frame structure, it is ensured that two-way 1310nm and 1490nm light
The caused time delay and time slot of signal are retimed according to the timer of inside, it is ensured that being sent and received in OLT device side will not
Produce error code.
Embodiment two
Fig. 3 is the structural representation of embodiment two of the present utility model.For 1310 optical signals, ONU equipment prefecture according to
The up transmission 1310nm wavelength burst luminous signals of time slot relation of agreement, OEO is used to up 1310nm（Optical-electrical-optical）Relaying
Mode is amplified, and the reduction of optical signal Burst slot, OEO amplification module integrated electro conversion receivers, electro-optic conversion transmitter, industry
Business signal shaping, amplification module, burst service signal timing and time slot recovery module.
A photoelectricity dress changes receiver built in photoelectric conversion receiver, and the 1310nm light that reception is met luminous power size is believed
Number it is converted into electric signal.Electro-optic conversion transmitter：Electric signal, is changed into constant size by the laser of a built-in electro-optic conversion
1310nm wavelength channels export.Service signal shaping, amplification module：Driven by externally fed electric power source pair of module electric signal,
To the level shaping of input electrical signal and drive amplification, driving emitting laser realizes burst luminous signal, and shaping and amplification are defeated again
Go out.Burst service signal timing and time slot recovery module：According to OLT and ONU standard communication protocols, the up 1310nm light letters of ONU
Number according to the slot requirements of the 1490nm optical signals of reception, ONU prefectures are using lining up industry on mode interval slots burst 1310nm
Be engaged in optical signal, after OEO amplifies requirement can meet slot requirements of the OLT to uplink burst optical signal.In light amplification compensator
The FPGA module put, 2G service rate can be handled up to, capture the clock module inside descending 1490nm optical signals to up
The Burst slot requirement of 1310nm optical signals, up 1310nm is happened suddenly per ONU business internal frame structure all the way according to clock about
Surely retimed and drive laser burst reduction optical signal again, meet business foundation above and below OLT device and ONU equipment prefecture
Slot requirements transmit, it is ensured that transmission is without error code.
The utility model also includes external power supply module, and luminous power compensator intervening active part uses the side of OEO amplifications
Formula realizes the relaying compensation amplification of optical signal, and outside need access power supply provides the work of internal module, supports outside input to hand over
220V power supplys, direct current -48V or+24V power supplys are flowed, be converted into direct current 5V voltages by converter uses for internal.
Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The all other embodiment obtained, belong to the scope of the utility model protection.Although the utility model just side of being preferable to carry out
Formula is illustrated and described, it is understood by those skilled in the art that without departing from claim of the present utility model
Limited range, variations and modifications can be carried out to the utility model.
Claims (7)
- A kind of 1. GPON network transmission lines luminous power compensation device, it is characterised in that：Including OLT device, under the OLT device Row sends the continuous optical signal of wavelength, continuous wavelength optical signal is amplified by the trunking scheme of OEO amplification modules, the OEO is put Big module integrated electro conversion receiver, electro-optic conversion transmitter, service signal shaping and amplification module and service signal are determined When module, the photoelectric conversion receiver electrically connects with the service signal shaping and amplification module, the service signal shaping And amplification module is connected with the service signal time block, the service signal time block and the electro-optic conversion transmitter Electrical connection.
- A kind of 2. GPON network transmission lines luminous power compensation device according to claim 1, it is characterised in that：The light A photoelectric conversion receiver built in electric conversion receiver, the photoelectric conversion receiver, which will receive, meets luminous power size The continuous optical signal of wavelength is converted into electric signal.
- A kind of 3. GPON network transmission lines luminous power compensation device according to claim 1, it is characterised in that：The electricity The laser of an electro-optic conversion built in light conversion transmitter, convert electrical signals into the continuous light letter of wavelength of wavelength constant size Number output.
- A kind of 4. GPON network transmission lines luminous power compensation device according to claim 1, it is characterised in that：The industry Business signal shaping and amplification module are driven by externally fed electric power source pair of module electric signal, whole to the level of input electrical signal respectively Shape and drive amplification, driving emitting laser realize that shaping and amplification export continuous optical signal again.
- A kind of 5. GPON network transmission lines luminous power compensation device according to claim 1, it is characterised in that：The industry Signal timing inside modules of being engaged in integrate clock modules, and the clock modules carry out same to the clock part of business datum frame structure Walking Timing Processing, it is ensured that the caused time delay and time slot of two-way continuous wavelength optical signal are retimed according to the timer of inside, Ensure to send and receive in OLT device side and will not produce error code.
- 6. a kind of GPON network transmission lines luminous power compensation device according to any one of Claims 1-4, its feature exist In：Also include time slot recovery module, the time slot recovery module carries out frame structure using FPGA modes to uplink and downlink signal The analysis of clock and the reduction of time slot.
- A kind of 7. GPON network transmission lines luminous power compensation device according to claim 1, it is characterised in that：Also include External power supply module, the external power supply module external power source are converted into direct current 5V voltages by converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720359177.XU CN206686327U (en) | 2017-04-07 | 2017-04-07 | A kind of GPON network transmission lines luminous power compensation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720359177.XU CN206686327U (en) | 2017-04-07 | 2017-04-07 | A kind of GPON network transmission lines luminous power compensation device |
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| CN206686327U true CN206686327U (en) | 2017-11-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111510799A (en) * | 2020-04-16 | 2020-08-07 | 广州市满航通信科技有限公司 | GPON aggregation remote system |
| CN112636839A (en) * | 2020-12-21 | 2021-04-09 | 国网浙江淳安县供电有限公司 | EPON repeater device for establishing double-ring self-healing network |
| CN113497656A (en) * | 2020-03-20 | 2021-10-12 | 青岛海信宽带多媒体技术有限公司 | Optical module |
-
2017
- 2017-04-07 CN CN201720359177.XU patent/CN206686327U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113497656A (en) * | 2020-03-20 | 2021-10-12 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN111510799A (en) * | 2020-04-16 | 2020-08-07 | 广州市满航通信科技有限公司 | GPON aggregation remote system |
| CN112636839A (en) * | 2020-12-21 | 2021-04-09 | 国网浙江淳安县供电有限公司 | EPON repeater device for establishing double-ring self-healing network |
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