CN105703872A - TWDM-PON far-end equipment light receiver and realization method thereof - Google Patents
TWDM-PON far-end equipment light receiver and realization method thereof Download PDFInfo
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- CN105703872A CN105703872A CN201610023635.2A CN201610023635A CN105703872A CN 105703872 A CN105703872 A CN 105703872A CN 201610023635 A CN201610023635 A CN 201610023635A CN 105703872 A CN105703872 A CN 105703872A
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- Prior art keywords
- signal
- wavelength
- twdm
- pon
- optical
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0228—Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths
- H04J14/023—Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths in WDM passive optical networks [WDM-PON]
- H04J14/0235—Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths in WDM passive optical networks [WDM-PON] for upstream transmission
- H04J14/0236—Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths in WDM passive optical networks [WDM-PON] for upstream transmission using multiple wavelengths
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/61—Coherent receivers
- H04B10/616—Details of the electronic signal processing in coherent optical receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
- H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
- H04J14/0245—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU
- H04J14/0246—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU using one wavelength per ONU
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
- H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
- H04J14/0249—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU
- H04J14/025—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU using one wavelength per ONU, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
Abstract
A TWDM-PON far-end equipment light receiver and a realization method thereof relate to the optical fiber communication field. A passive wavelength division multiplexing device, a one-from-plurality electronic switch module and a plurality of photoelectric converters are included. The wavelength division multiplexing device separates a wave combination light signal sent by TWDM-PON local side equipment to light channels corresponding to each wavelength individually. Photoelectric conversion modules connected to each light channel convert each light signal on each light channel into a corresponding electrical signal and send to the electronic switch module. The electronic switch module selects one path of needed electrical signal from multiple paths of electric signals under the control of a selection signal provided by the far-end equipment and provides for a next grade circuit. In the invention, cost can be greatly reduced; precision and stability are increased; and adjusting and testing are simple and reliable, which is good for large scale batch production.
Description
Technical field
The present invention relates to fiber optic communication field, be specifically a kind of TWDM-PON remote equipment photoreceiver and realize method。
Background technology
TWDM-PON (TimeandWavelengthDivisionMultiplexedPassiveOpticalNetwor k, time-division and Wave division multiplexing passive optical network) technology, every optical fiber provide four to or more multi-wavelength, the every pair of wavelength can provide the two-way transmission capabilities of the symmetrically or non-symmetrically speed of 2.5Gbps or 10Gbps。In 2012, TWDM-PON technology was decided to be the Scheme Choice that NG-PON2 framework is implemented by FSAN。Current TWDM-PON adopts 4 XG-PON to be carried on stacking on different wavelength forming, it is possible to realize coexisting in same ODN (OpticalDistributionNetwork, fiber distribution network) with existing GPON/XG-PON；TWDM-PON provides the access capability of descending 40Gbps, up 10Gbps speed, wherein each ONU upstream peak speed 2.5Gbps, downlink peak rates 10Gbps, it is possible to meet the access demand of each domestic consumer 1Gbps in future in " broadband China " strategy。
As shown in Figure 1, the remote equipment photoreceiver of TWDM-PON system conventional at present, its operation principle is, from the local side apparatus OLT (OpticalLineTermination of TWDM-PON system, optical line terminal) send over the conjunction wave optical signal comprising λ 1, λ 2, λ 3, these 4 kinds of wavelength of λ 4, entered in remote equipment photoreceiver by optical fiber。Remote equipment photoreceiver includes tunable optical wavelength filter and photoelectric conversion module, close wave optical signal and enter tunable optical wavelength filter, the wavelength channel that tunable optical wavelength filter provides according to remote equipment selects signal, from λ 1, λ 2, these 4 kinds of wavelength channels of λ 3, λ 4, the optical signal selecting one of them wavelength exports photoelectric conversion module, after finally carrying out opto-electronic conversion, the signal of telecommunication of output corresponding wavelength processes to the rear stage circuit in remote equipment。Sum it up, the working mechanism of the remote equipment photoreceiver of TWDM-PON system is exactly: select the optical signal of one of them wavelength in the photosynthetic ripple signal of multi-wavelength, and complete the reduction of the signal of telecommunication eventually through opto-electronic conversion。
But, the remote equipment photoreceiver of current this conventional TWDM-PON system, the tunable optical wavelength filter used is expensive, precision is inadequate with stability, and inside adopts temperature to control, selecting to be required for each wavelength during wavelength and arrange a temperature value, different device temperature characteristics is different, therefore the complexity of commissioning is higher, is unfavorable for large-scale mass production。
Summary of the invention
For the defect existed in prior art, it is an object of the invention to provide a kind of TWDM-PON remote equipment photoreceiver and realize method, cost can be greatly lowered, precision and stability increase, and commissioning is simple and reliable, is conducive to large-scale mass production。
For reaching object above, the present invention takes a kind of TWDM-PON remote equipment photoreceiver, including a passive wavelength division multiplex device, the electronic switch module of a multiselect one and multiple electrooptical device, described wavelength division multiplex device is for by optical channel individually corresponding for the conjunction wave optical signal partial wave of multi-wavelength to each wavelength, described electrooptical device connects each optical channel respectively, for the optical signal on each optical channel is converted to the signal of telecommunication, described electronic switch module is used for selecting a road signal of telecommunication to be supplied to next stage circuit。
On the basis of technique scheme, described each optical channel correspondence connects an electrooptical device。
On the basis of technique scheme, described conjunction wave optical signal includes the optical signal of four kinds of wavelength, the optical signal of each optical channel correspondence one wavelength of carrying。
On the basis of technique scheme, the optical signal of a wavelength on corresponding optical channel is converted to the signal of telecommunication that a road is corresponding by each electrooptical device。
The present invention also provides for a kind of realizing method based on TWDM-PON remote equipment photoreceiver described in claim 1, and including the conjunction wave optical signal that TWDM-PON local side apparatus is sent by wavelength division multiplex device, partial wave is to the individually corresponding optical channel of each wavelength；The photoelectric conversion module connected on each optical channel, is converted to the signal of telecommunication of correspondence by the optical signal on optical channel, sends to described electronic switch module；Under the selection signal that described electronic switch module provides at remote equipment controls, from multi-channel electric signal, select the signal of telecommunication needed for a road, it is provided that to next stage circuit。
On the basis of technique scheme, TWDM-PON local side apparatus sends the conjunction wave optical signal comprising four wavelength, and each wavelength is by partial wave to independent optical channel, and the optical signal of a wavelength is converted to a road signal of telecommunication by photoelectric conversion module。
The beneficial effects of the present invention is: the WDM device of employing, electronic switch module and electrooptical device are all the products of high-volume sizable application at present, the tunable optical wavelength filter that totle drilling cost is conventional in prior art, and Maturity and stability are higher, processing and debugging is simple, and applicable batch becomes to produce。Passive WDM (WavelengthDivisionMultiplexing wavelength-division multiplex) device, technically highly developed, more improve stability。
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the remote equipment photoreceiver of conventional TWDM-PON system in background technology；
Fig. 2 is the schematic diagram of embodiment of the present invention TWDM-PON remote equipment photoreceiver。
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail。
As in figure 2 it is shown, TWDM-PON remote equipment photoreceiver of the present invention, including the electronic switch module of a passive WDM device, multiple electrooptical device and a multiselect one。Wherein, WDM device is for by optical channel individually corresponding for the conjunction wave optical signal partial wave of multi-wavelength to each wavelength, the plurality of electrooptical device divides connection each optical channel, for the optical signal of a wavelength on each optical channel is converted to a road signal of telecommunication, electronic switch module is supplied to the next stage circuit of TWDM-PON remote equipment for selecting a road signal of telecommunication。
TWDM-PON remote equipment photoreceiver of the present invention realize method, specifically include:
First, sending over the conjunction wave optical signal comprising λ 1, λ 2, λ 3, these 4 wavelength of λ 4 from TWDM-PON local side apparatus, WDM device receives described and ripple signal by optical fiber, by optical channel individually corresponding for conjunction wave optical signal partial wave to each wavelength。Concrete, the optical signal that wavelength is λ 1 exports on optical channel 1, and the optical signal that wavelength is λ 2 exports on optical channel 2, and the optical signal that wavelength is λ 3 exports on optical channel 3, and the optical signal that wavelength is λ 4 exports on optical channel 4。
Then, the optical signal on each optical channel, be converted to the signal of telecommunication by the electrooptical device connected on optical channel, and on each optical channel, the optical signal of a wavelength is converted to a road signal of telecommunication。Concrete, the optical signal that wavelength is λ 1 is converted to the signal of telecommunication 1, and the optical signal that wavelength is λ 2 is converted to the signal of telecommunication 2, and the optical signal that wavelength is λ 3 is converted to the signal of telecommunication 3, and the optical signal that wavelength is λ 4 is converted to the signal of telecommunication 4。
Finally, under the selection signal control that TWDM-PON remote equipment provides, described electronic switch module is from the signal of telecommunication 1, the signal of telecommunication 2, the signal of telecommunication 3 and the signal of telecommunication 4, select the road signal of telecommunication corresponding to the signal of a required optical wavelength, it is provided that process to the next stage circuit in TWDM-PON remote equipment。
In the present invention, WDM device is passive device, technically comparatively ripe, and good stability adds electrooptical device and electronic switch module, effectively can reduce cost, have good stability, be conducive to sizable application in the application of TWDM-PON technology。
The present invention is not limited to above-mentioned embodiment, for those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, and these improvements and modifications are also considered as within protection scope of the present invention。The content not being described in detail in this specification belongs to the known prior art of professional and technical personnel in the field。
Claims (6)
1. a TWDM-PON remote equipment photoreceiver, it is characterized in that, including a passive wavelength division multiplex device, the electronic switch module of a multiselect one and multiple electrooptical device, described wavelength division multiplex device is for by optical channel individually corresponding for the conjunction wave optical signal partial wave of multi-wavelength to each wavelength, described electrooptical device connects each optical channel respectively, for the optical signal on each optical channel is converted to the signal of telecommunication, described electronic switch module is used for selecting a road signal of telecommunication to be supplied to next stage circuit。
2. TWDM-PON remote equipment photoreceiver as claimed in claim 1, it is characterised in that: described each optical channel correspondence connects an electrooptical device。
3. TWDM-PON remote equipment photoreceiver as claimed in claim 1, it is characterised in that: described conjunction wave optical signal includes the optical signal of four kinds of wavelength, the optical signal of each optical channel correspondence one wavelength of carrying。
4. the TWDM-PON remote equipment photoreceiver as described in claim 1 or 3, it is characterised in that: the optical signal of a wavelength on corresponding optical channel is converted to the signal of telecommunication that a road is corresponding by each electrooptical device。
5. one kind realizes method based on TWDM-PON remote equipment photoreceiver described in claim 1, it is characterised in that including: the conjunction wave optical signal that TWDM-PON local side apparatus is sent by wavelength division multiplex device, and partial wave is to the individually corresponding optical channel of each wavelength；The photoelectric conversion module connected on each optical channel, is converted to the signal of telecommunication of correspondence by the optical signal on optical channel, sends to described electronic switch module；Under the selection signal that described electronic switch module provides at remote equipment controls, from multi-channel electric signal, select the signal of telecommunication needed for a road, it is provided that to next stage circuit。
6. as claimed in claim 5 TWDM-PON remote equipment photoreceiver realize method, it is characterized in that: TWDM-PON local side apparatus sends the conjunction wave optical signal comprising four wavelength, each wavelength is by partial wave to independent optical channel, and the optical signal of a wavelength is converted to a road signal of telecommunication by photoelectric conversion module。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610023635.2A CN105703872A (en) | 2016-01-14 | 2016-01-14 | TWDM-PON far-end equipment light receiver and realization method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610023635.2A CN105703872A (en) | 2016-01-14 | 2016-01-14 | TWDM-PON far-end equipment light receiver and realization method thereof |
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| CN105703872A true CN105703872A (en) | 2016-06-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332623A (en) * | 2017-06-06 | 2017-11-07 | 烽火通信科技股份有限公司 | A kind of implementation method of TWDM PON remote equipment optical transmitters |
| CN108306690A (en) * | 2018-01-11 | 2018-07-20 | 青岛海信宽带多媒体技术有限公司 | Optical module and passageway switching method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202837168U (en) * | 2012-02-01 | 2013-03-27 | 北京尚精光电技术有限公司 | Digitalized spectrophotometer |
| US20130236180A1 (en) * | 2012-03-12 | 2013-09-12 | Bung Chul Kim | Distributed antenna system and method |
| CN103583010A (en) * | 2011-06-20 | 2014-02-12 | 株式会社Ntt都科摩 | Communication system and method for transmitting data to one or more groups of nodes in a communication system |
-
2016
- 2016-01-14 CN CN201610023635.2A patent/CN105703872A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103583010A (en) * | 2011-06-20 | 2014-02-12 | 株式会社Ntt都科摩 | Communication system and method for transmitting data to one or more groups of nodes in a communication system |
| CN202837168U (en) * | 2012-02-01 | 2013-03-27 | 北京尚精光电技术有限公司 | Digitalized spectrophotometer |
| US20130236180A1 (en) * | 2012-03-12 | 2013-09-12 | Bung Chul Kim | Distributed antenna system and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332623A (en) * | 2017-06-06 | 2017-11-07 | 烽火通信科技股份有限公司 | A kind of implementation method of TWDM PON remote equipment optical transmitters |
| CN108306690A (en) * | 2018-01-11 | 2018-07-20 | 青岛海信宽带多媒体技术有限公司 | Optical module and passageway switching method |
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Application publication date: 20160622 |