CN1852060A - Multi-way optical-wavelength conversion duplexer - Google Patents
Multi-way optical-wavelength conversion duplexer Download PDFInfo
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- CN1852060A CN1852060A CNA200610050896XA CN200610050896A CN1852060A CN 1852060 A CN1852060 A CN 1852060A CN A200610050896X A CNA200610050896X A CN A200610050896XA CN 200610050896 A CN200610050896 A CN 200610050896A CN 1852060 A CN1852060 A CN 1852060A
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Abstract
This invention discloses a new photoelectric device-an optical wave length conversion multiplexer including two heat pluggable light R-T module sets, an electric signal transmission circuit, a light R-T module drive circuit, a WDM module, a transformer, a fiber and its interface, in which, said two heat pluggable module sets are connected by an electric transmission circuit, each set has a corresponding drive circuit, the optical signals emitted by the second set are decided by the optical signals received by the first set, the WDM module is serial to a transmitting end in one set and transmits signals out via a fiber.
Description
Technical field
The utility model relates to a kind of novel electrooptical device, especially a kind of multi-way optical-wavelength conversion duplexer.
Background technology
Along with popularizing and improving constantly of broadband application to bandwidth requirement, product and application based on wavelength-division multiplex technique in optical fiber are penetrated into metropolitan area and Access Network gradually from fiber backbone network, in the application of metropolitan area and Access Network the optical-fiber network product have been proposed new technology and the product requirement different with backbone network.Technology of using in backbone network and product mainly are absorbed in long distance, and big capacity and high reliability then require general interface in metropolitan area and Access Network, extremely flexibly configuration and extremely low cost.The equipment interface of fiber backbone network is complicated and not general at present, dispose dumb, and price is extremely expensive, greatly limited the optical-fiber network technology in metropolitan area and Application in Access Network and universal, especially in Access Network,, can't satisfy new business far away because the high fiber optic applications that makes of existing wavelength division multiplexing product design costs is confined to single wavelength basically, especially network video service is as the demand of Web TV.
In metropolitan area and Access Network, along with the increase of bandwidth demand, the optical wavelength number that is transmitted in simple optical fiber also constantly increases thereupon.Because many optical senders cheaply do not have strict control to output wavelength in the existing network, in same optical link, use this class optical sender can cause conflict between the light signal on a plurality of wavelength.For avoiding this problem, original optical sender can be replaced by the optical sender of fixed wave length, but can cause the waste of original investment.Better solution is to use a kind of optical-wavelength conversion duplexer, and the light signal that is carried in original optical wavelength is transferred to other wavelength, does not change original signal in conversion, and can carry out wavelength after the conversion and the wavelength that carries new business multiplexing.
The main performance of wavelength shifter comprises the wavelength Conversion scope, transmission rate scope, transmission range, configuration flexibility, volume and product cost and maintenance cost.Wavelength shifter in the market mainly contains two classes: a class is based on the wavelength shifter of semiconductor optical amplifier, the another kind of wavelength shifter that is based on the fixed light transceiver module.The wavelength shifter of based semiconductor image intensifer (SOA) has that volume is little, and cost is lower, the advantage that integrated level is high, but, make that the scope of wavelength Conversion is little owing to use specific semi-conducting material, versatility is very limited; Conversion by light one an electric light can enlarge the wavelength Conversion scope based on the wavelength shifter of fixed light transceiver module, but volume is big, and wavelength can't flexible configuration, and product cost and maintenance cost height are difficult to safeguard under not break in service and upgrade.Shortcomings such as expensive and low flexibility make the application of existing wavelength shifter be confined in long-distance backbone network and the metropolitan area network, and the broadband application demand in Access Network usually is different from backbone network and metropolitan area network, sometimes must be in the face of complicated more network environment, such as the hybrid network of single mode and multimode fiber composition, and the mixed transport of all kinds of digital and analog signalings etc.So be badly in need of exploitation one class miniaturization, low cost can realize flexible configuration wavelength and pattern, and the product that can in time upgrade and safeguard.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art; provide that a kind of volume is little, cost is low, flexible configuration wavelength and pattern, be used for the mode switch between single mode or the multimode fiber and the transmitted in both directions of any wavelength Conversion; unidirectional and the two-way mixed transport of analog and digital signal that also can be used for various bandwidth and speed; or be used to increase the distance of signal transmission, and the integrated multi-way optical-wavelength conversion duplexer of multichannel wavelength multiplexing function.
Multi-way optical-wavelength conversion duplexer of the present invention comprises compositions such as hot swappable optical transceiver module group-1 and hot swappable optical transceiver module group-2, signal of telecommunication transmission shaping circuit, optical transceiver module drive circuit, Wavelength division multiplexing module, power supply, optical fiber and optical fiber interface; Described hot swappable optical transceiver module group-1 and hot swappable optical transceiver module group-the 2nd comprise a described hot swappable optical transceiver module at least, and each hot swappable optical transceiver module is made up of an optical transmitting set and a corresponding optical receiver; Described hot swappable optical transceiver module group-1 and hot swappable optical transceiver module group-2 all have the optical transceiver module drive circuit, and described power supply offers two groups of drive circuits and carries out work; Described optical receiver will receive light signal and transfer the signal of telecommunication to, and optical transmitting set transfers the signal of telecommunication that receives to light signal; Described hot swappable optical transceiver module group-1 is corresponding with hot swappable optical transceiver module group-2, be that module in the module group-1 is corresponding one by one with the module in the module group-2, hot swappable optical transceiver module group-1 and hot swappable optical transceiver module group-2 are by the series connection of signal of telecommunication transmission shaping circuit; Wavelength division multiplexing module is connected in series with an end of hot-swappable optical transceiver module group-2 mutually by optical fiber, described hot-swappable optical transceiver module group-2 transfers the signal of telecommunication light signal of nominal wave length to or transfers the light signal of nominal wave length to the signal of telecommunication, and described Wavelength division multiplexing module is with different wavelengths of light signal decomposition and compound.
Described Wavelength division multiplexing module can adopt the Coarse Wavelength Division Multiplexing or the close wave-division multiplexer filter of based thin film, array waveguide grating (AWG), slab guide (PLC), or closing of fiber grating (FBG) involve wave-dividing device, and the combination that also can adopt the combination of above-mentioned all kinds of devices or above-mentioned all kinds of device and passive splitter (Passive Splitter) is to reduce cost.
According to above-described multi-way optical-wavelength multiplexer, because the optical transceiver module of hot swappable optical transceiver module group-1 and hot swappable optical transceiver module group-2 all has optical receiver and optical transmitting set, optical transceiver module group-1 transfers the different wave length light signal that the external world transmits to the signal of telecommunication, the signal of telecommunication is passed to optical transceiver module group-2, optical transceiver module group-2 transfers the signal of telecommunication to the light signal of nominal wave length and gives Wavelength division multiplexing module by Optical Fiber Transmission, by Wavelength division multiplexing module these light signals is merged in the optical fiber to transfer out.Otherwise the light external world is transferred to and is transferred to hot swappable optical transceiver module group-2 after the light signal of the nominal wave length of Wavelength division multiplexing module decomposes, optical transceiver module group-2 is converted into this light signal the output signal of telecommunication and is transferred to optical transceiver module group-1, and optical transceiver module group-1 is gone out the optical signal transmission that the signal of telecommunication transfers different optical wavelength to.Thereby the multi-way optical-wavelength multiplexer has simple in structure, characteristics such as volume is little, optical wavelength has realized flexible configuration, transmitted in both directions, cost are low.
Figure of description
Fig. 1 is a fundamental diagram of the present invention;
Fig. 2 is another fundamental diagram;
Fig. 3 is the fundamental diagram that wavelength is carried out shaping and clock recovery of the present invention.
Embodiment is in Fig. 1, the multi-way optical-wavelength conversion duplexer that this patent provided is mainly by 2 of 1 and hot swappable optical transceiver module group-2 of hot swappable optical transceiver module group-1, signal of telecommunication transmission circuit 7, optical transceiver module drive circuit 3 and 4, Wavelength division multiplexing module 5, power supply, optical fiber 6 and optical fiber interface etc. are partly formed, 2 of 1 and every group of optical transceiver module group-2 of every group of optical transceiver module group-1 formed by four optical transceiver modules 8, each optical transceiver module 8 comprises 1 optical transmitting set and 1 optical receiver, reception and emission are through the light signal of ovennodulation, and the light signal that receives is converted to the signal of telecommunication, optical transceiver module is controlled by drive circuit, consider versatility and configuration flexibility with external interface, optical transceiver module group-1 miniaturization SFP (the Small Form Pluggable) optical transceiver module that usually employing can hot plug, the optical wavelength that optical transceiver module group-1 receives is represented with WLi-1 to WLi-4, each optical transceiver module in the optical transceiver module group-1 all is converted to the corresponding signal of telecommunication with the light signal that receives, and the electric transmission line by low distortion passes to optical transceiver module corresponding in the optical transceiver module group-2 with the signal of telecommunication, the electrical signal conversion that optical transceiver module in the optical transceiver module group-2 will receive from optical transceiver module group-1 is the output light signal of fixed wave length WLo-1 to WLo-4, and by the Wavelength division multiplexing module 5 that links to each other with optical transceiver module group-2 WLo-1 to WLo-4 is merged in the optical fiber and to export, Wavelength division multiplexing module is connected with optical fiber by optical fiber interface, input wavelength WLi-1 to WLi-4 can be visible arbitrarily or infrared wavelength, it generally is common communication window wavelength, as the 850-nm wave band, the 1310-nm wave band, the 1450-nm wave band, and the 1550-nm wave band etc., otherwise the light signal by four that transmit in the optical fiber different fixed wave length Wlo-1 to WlO-4 is resolved into four light signals and is transferred to optical transceiver module group-2 by Wavelength division multiplexing module, optical transceiver module group-2 transfers light signal to the signal of telecommunication and is transferred to optical transceiver module group-1, and optical transceiver module group-1 is gone out WLi-1 to the WLi-4 optical signal transmission that the signal of telecommunication transfers different wave length to.
Multi-way optical-wavelength trans multiplexer of the present invention is two-way, can be used for the identical or different wavelength of another group that one group of CWDM will transmitting in an optical fiber or DWDM wavelength Conversion become to transmit in multifiber.Fig. 2 has shown the another kind of implementation of multi-way optical-wavelength conversion duplexer, both two road in the multichannel input wavelength changed with multiplexing, and directly multiplexing to the wavelength of other two tunnel unconverted.In the example of Fig. 2, drawn 2 road in 4 road wavelength have been changed with multiplexing, and other 2 the tunnel has directly been carried out multiplexing device.This two-way device is converted to wavelength WLo-3 to WLo-4 with wavelength WLi-3 to WLi-4, and be incorporated in the optical fiber with the wavelength WLi-1 of unconverted and WLi-2 and through the wavelength WLo-3 of conversion and WLo-4 by Wavelength division multiplexing module and transmit, there is not the phase mutual interference between each wavelength.
Having shown the implementation that a road in the multi-way optical-wavelength carried out integer and clock recovery with clock-data recovery chip and circuit among Fig. 3. this two-way device is converted to wavelength WLo-3 with wavelength WLi-3, signal among the wavelength WLi-4 is converted to signal among the wavelength WLo-4 through ce circuit 9 integers with after recovering, and the wavelength WLi-1 of unconverted and WLi-2 is transmitted with being incorporated in the optical fiber through the wavelength WLo-3 that changes and WLo-4 by Wavelength division multiplexing module.
Claims (6)
1, multi-way optical-wavelength conversion duplexer is characterized in that: comprise hot swappable optical transceiver module group-1 and hot swappable optical transceiver module group-2, signal of telecommunication shaping transmission circuit, optical transceiver module drive circuit, Wavelength division multiplexing module, power supply, optical fiber and optical fiber interface composition; Described hot swappable optical transceiver module group-1 and hot swappable optical transceiver module group-the 2nd comprise a hot swappable optical transceiver module at least, and each hot swappable optical transceiver module is made up of an optical transmitting set and a corresponding optical receiver; Described hot swappable optical transceiver module group-1 and hot swappable optical transceiver module group-2 all have the optical transceiver module drive circuit, and described power supply offers two groups of drive circuits and carries out work; Described optical receiver will receive light signal and transfer the signal of telecommunication to, and optical transmitting set transfers the signal of telecommunication that receives to light signal; Described hot swappable optical transceiver module group-1 is corresponding with hot swappable optical transceiver module group-2, and hot swappable optical transceiver module group-1 and hot swappable optical transceiver module group-2 are by the series connection of signal of telecommunication shaping transmission circuit; Described hot-swappable optical transceiver module group-2 transfers the signal of telecommunication light signal of nominal wave length to or transfers the light signal of nominal wave length to the signal of telecommunication, and Wavelength division multiplexing module is connected in series with an end of hot-swappable optical transceiver module group-2 mutually by optical fiber.
2, multi-way optical-wavelength conversion duplexer according to claim 1 is characterized in that: described optical transceiver module group is that two optical transceiver modules are arranged.
3, multi-way optical-wavelength conversion duplexer according to claim 1 is characterized in that: described every group of optical transceiver module group is that 16 optical transceiver modules are arranged.
4, multi-way optical-wavelength conversion duplexer according to claim 1 is characterized in that: described every group of optical transceiver module group is that an optical transceiver module is arranged.
5, multi-way optical-wavelength conversion duplexer according to claim 1, it is characterized in that: described Wavelength division multiplexing module is based on the Coarse Wavelength Division Multiplexing or the close wave-division multiplexer filter of film, array waveguide grating (AWG), slab guide (PLC), or closing of fiber grating (FBG) involved wave-dividing device.
6, multi-way optical-wavelength conversion duplexer according to claim 1, it is characterized in that: the one or more wavelength in every group of optical transceiver module are recovered through oversampling clock-signal, carry out compound and transmission with described Wavelength division multiplexing module and one or more wavelength that recovers without clock-signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA200610050896XA CN1852060A (en) | 2006-05-24 | 2006-05-24 | Multi-way optical-wavelength conversion duplexer |
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| CNA200610050896XA CN1852060A (en) | 2006-05-24 | 2006-05-24 | Multi-way optical-wavelength conversion duplexer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207432A (en) * | 2012-01-17 | 2013-07-17 | 波若威科技股份有限公司 | Single fiber multiplexer system |
| CN110149149A (en) * | 2019-05-14 | 2019-08-20 | 北京小鸟科技股份有限公司 | Communication module and KVM switching equipment, system for KVM switching equipment |
-
2006
- 2006-05-24 CN CNA200610050896XA patent/CN1852060A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207432A (en) * | 2012-01-17 | 2013-07-17 | 波若威科技股份有限公司 | Single fiber multiplexer system |
| CN110149149A (en) * | 2019-05-14 | 2019-08-20 | 北京小鸟科技股份有限公司 | Communication module and KVM switching equipment, system for KVM switching equipment |
| CN110149149B (en) * | 2019-05-14 | 2024-04-30 | 北京小鸟科技股份有限公司 | Communication module for KVM switch device, KVM switch device and system |
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