CN104486695B - A kind of airborne all optical networks structure of OWDM - Google Patents
A kind of airborne all optical networks structure of OWDM Download PDFInfo
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- CN104486695B CN104486695B CN201410728263.4A CN201410728263A CN104486695B CN 104486695 B CN104486695 B CN 104486695B CN 201410728263 A CN201410728263 A CN 201410728263A CN 104486695 B CN104486695 B CN 104486695B
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Abstract
The invention discloses a kind of airborne all optical networks structure of OWDM, including optical switch and multiple Node stations, optical switch include wavelength division multiplexer and and optical splitter, wavelength division multiplexer includes multiplexer output terminal and multiple multiplexer inputs, and optical splitter includes optical splitter input and multiple optical splitter output ends；Node station includes Node station input and Node station output end；Node station output end corresponds with multiplexer inputs to be connected, and multiplexer output terminal is connected with optical splitter input, and optical splitter output end corresponds with Node station input to be connected.It can realize that each node and other arbitrary nodes communicate by the present invention, and not conflict, the present invention provides optical switch and Node station design considerations to establish the airborne all optical networks based on wavelength-division multiplex technique.
Description
Technical field
The invention belongs to network communication technology field, is related to a kind of airborne all optical networks structure of OWDM.
Background technology
Following avionics system is a kind of high bandwidth, the Unified Network of big handling capacity.It requires hard real-time and Gao Rong
Wrong network performance is, it is necessary to flexibly scalable network structure, and need to support the parallel processing of extensive processor.WDM
Network has been well adapted for the demand of following avionics network, it possess on single fiber and meanwhile transmit Large Copacity simulation and
The ability of data signal, each wavelength are independent transmission channels；Its transparent transmission makes avionics system have well
Inheritance；WDM wavelength routed networks flexible structures are scalable, have good adaptability to the change of avionics network task.But
Do not have specified in more detail for the structure of wavelength-division multiplex onboard networks at present.
The content of the invention
The present invention proposes a kind of airborne all optical networks structure of OWDM, solves based on wavelength-division multiplex technique
The constructing plan of onboard networks interchanger and Node station, while meet the high reliability of avionics network.
The purpose of the present invention：A kind of design method of the airborne optical switching network of OWDM is invented,
The present invention provides following technical scheme：
A kind of airborne all optical networks structure of OWDM, it is characterized in that：Including optical switch and multiple
Node station,
Optical switch include wavelength division multiplexer and and optical splitter, wavelength division multiplexer include multiplexer output terminal and multiple multiplexings
Device input, optical splitter include optical splitter input and multiple optical splitter output ends；Node station includes Node station input, light is put
Big device, demultiplexer, optical transmitter, optical receiver, communications processor element and Node station output end；
Image intensifer includes image intensifer input and image intensifer output end；The quantity of optical transmitter is 1, optical transmitter
Including optical transmitter input and optical transmitter output end；Communications processor element includes communication input, communication output and master
Machine connection end；Image intensifer input is the Node station input, and optical transmitter output end is Node station output end；
The Node station output end corresponds with multiplexer inputs to be connected, multiplexer output terminal and optical splitter input
It is connected, optical splitter output end corresponds with Node station input to be connected；
Image intensifer output end passes sequentially through demultiplexer, the communication input phase of optical receiver and communications processor element
Even；
The electric signal progress serioparallel exchange that communications processor element is used to receive obtains data message, then caches the number
It is believed that breath, the main frame for notifying to be connected with main frame connection end reads the data message of caching；And by communications processor element read by
Data message that the main frame is sent on optical switch, carry out parallel-serial conversion and obtain electric signal, pass through communication output transmission
Give optical transmitter input；
Optical transmitter is used to the electric signal received being converted to optical signal, and is sent by Node station output end optical signal
To corresponding multiplexer inputs.
Above-mentioned demultiplexer includes demultiplexer output end, and optical receiver includes optical receiver input and optical receiver is defeated
Go out end, demultiplexer output end, optical receiver input, optical receiver output end and the communication input have multiple, solution
Multiplexer output terminal corresponds with optical receiver input to be connected, and optical receiver output end corresponds phase with communication input
Even.
The present invention has following technique effect：
The present invention can realize the airborne all optical networks of OWDM, and the optical switch of structure is passive, simple in construction,
Node station configuration is flexible, ensure that each node of optical-fiber network can support single-point, multiple spot, three kinds of reception patterns a little.
It can realize that each node and other arbitrary nodes communicate by the present invention, and not conflict,
To establish, the airborne all optical networks based on wavelength-division multiplex technique provide optical switch to the present invention and Node station is set
Count foundation.
Each Node station of the invention only can send a specific optical wavelength using an optical transmitter, and use a light
Receiver receives N number of optical wavelength that all nodes (including local node) are sent simultaneously, and the optical multiplexer of optical switch is to N number of light
Wavelength produces multiplex signal, and optical splitter broadcasts multiplex signal to N number of Node station, can realize that the interconnection entirely of N number of node is clog-free
Exchange, therefore the wavelength number that whole all optical networks use is only related to nodes N, it is only necessary to N number of wavelength, Wavelength Assignment
Simple and number of wavelengths is minimum.
Brief description of the drawings
Fig. 1 is the optical switch schematic diagram of the present invention；
Fig. 2 is the connection diagram of Node station and optical switch of the present invention.
Embodiment
The invention provides a kind of airborne all optical networks structure of OWDM, including optical switch and Node station,
Optical switch is inactive component, main to complete to receive the optical signal that different port is sent, and is responsible for all optical signals being forwarded to not
With on the receiving terminal of port.
Optical switch include wavelength division multiplexer and and optical splitter, wavelength division multiplexer include multiplexer output terminal and multiple multiplexings
Device input, the quantity of optical splitter is 1, and optical transmitter includes optical splitter input and multiple optical splitter output ends；Node station bag
Include Node station input, image intensifer, demultiplexer, optical transmitter, optical receiver, communications processor element and Node station output
End.
Image intensifer includes image intensifer input and image intensifer output end；Optical transmitter includes optical transmitter input
With optical transmitter output end；Communications processor element includes communication input, communication output and main frame connection end；Image intensifer is defeated
It is the Node station input to enter end, and optical transmitter output end is Node station output end.
Node station output end corresponds with multiplexer inputs to be connected, multiplexer output terminal and optical splitter input phase
Even, optical splitter output end is corresponded with Node station input and is connected.
Multiple multiplexer inputs of wavelength division multiplexer receive the different wavelengths of light letter sent from multiple different Node stations
Number, pass to optical splitter input after multiplex, optical splitter is by optical splitter output end by optical signal broadcast transmission to multiple nodes
The Node station input of machine, the optical signal of each optical splitter output end output include the optical signal of various wavelength；Node station is defeated
Go out end with multiplexer inputs one-to-one corresponding to be connected, enable to optical transmitter to realize the work(transmitted data on specified wavelength
Energy.
Image intensifer output end passes sequentially through demultiplexer, the communication input phase of optical receiver and communications processor element
Even：
Image intensifer is used to amplify the optical signal received, and is exported by image intensifer output end to demultiplexer；Solution
The optical signal of different wave length, the light that decomposition is extracted in the optical signal by amplification that multiplexer receives for decomposing extraction
Signal is sent to corresponding optical receiver；Optical receiver is used to the optical signal received being converted to electric signal, is then passed to
Communications processor element；The electric signal progress serioparallel exchange that communications processor element is used to receive obtains data message, Ran Houhuan
The data message is deposited, the main frame for notifying to be connected with main frame connection end reads the data message of caching.
The communication output of communications processor element is connected with optical transmitter input so that communications processor element is by mailing address
The data message being sent to by the main frame on optical switch of reason unit reading, progress parallel-serial conversion obtain electric signal, pass through
Communication output passes to optical transmitter input, and optical transmitter is used to the electric signal received being converted to optical signal, and leads to
Crossing Node station output end optical signal and sending to corresponding multiplexer inputs, realizes the data of node corresponding to main frame hair
It is sent on optical switch.
Demultiplexer includes demultiplexer output end, and optical receiver includes optical receiver input and optical receiver exports
End, demultiplexer output end, optical receiver input, optical receiver output end and the communication input have multiple, demultiplex
Corresponded and be connected with optical receiver input with device output end, optical receiver output end corresponds phase with communication input
Even.
Image intensifer mainly completes the amplification of receives link signal, and demultiplexer mainly completes multipath light signal point on link
The opto-electronic conversion of the multipath light signal to demultiplexer output is completed from extraction, optical receiver, communications processor element completes electricity
Signal transacting and it is adapted to main computer unit,
As shown in figure 1, optical switch is made up of the wavelength division multiplexer of N-port and the optical splitter of N-port.It is received from not
With the different wave length optical signal of port, and each output port is broadcasted, as shown in Figure 1.
Node station is mainly made up of image intensifer, demultiplexer, optical receiver, communications processor element, optical transmitter, is completed
To the adaptation processes of node, as shown in Figure 2.
Node station receive optical switch data process be：Image intensifer be used for compensated optical signal connection caused by Insertion Loss and
Signal power caused by optical splitter decays；Demultiplexer receives the wdm optical signal after image intensifer amplification, and is responsible for light
Signal is demultiplexed into the receiver of corresponding wavelength；After each receiver is respectively received the optical signal of respective wavelength, it will carry out
Opto-electronic conversion obtains electric signal, then transfers to communications processor element to be handled electric signal；Communications processor element will receive
Electric signal serioparallel exchange, chosen according to local node main frame and receive a node on network, a group node or all nodes
Configuration requirement, the data of a node, a group node or all nodes specified only are cached, so as to realize single-point, multiple spot or institute
Three kinds of reception patterns a little, main frame is notified to read the data received from all optical networks after the completion of caching.
Node station to optical switch send data process be：Communications processor element receives the master with the communications processor element
Data on the connected main frame in machine connection end, parallel-serial conversion is carried out to data, by using the optical transmitter of locally specified wavelength
The optical signal of specified wavelength is sent to optical switch, on other each nodes be forwarded to by optical switch on network.
Claims (1)
- A kind of 1. airborne all optical networks structure of OWDM, it is characterised in that：Including optical switch and multiple Node stations,Optical switch include wavelength division multiplexer and and optical splitter, wavelength division multiplexer include multiplexer output terminal and multiple multiplexers it is defeated Enter end, optical splitter includes optical splitter input and multiple optical splitter output ends；Node station includes Node station input, light amplification Device, demultiplexer, optical transmitter, optical receiver, communications processor element and Node station output end；Image intensifer includes image intensifer input and image intensifer output end；The quantity of optical transmitter is 1, and optical transmitter includes Optical transmitter input and optical transmitter output end；Communications processor element includes communication input, communication output and main frame and connected Connect end；Image intensifer input is the Node station input, and optical transmitter output end is Node station output end；The Node station output end corresponds with multiplexer inputs to be connected, multiplexer output terminal and optical splitter input phase Even, optical splitter output end is corresponded with Node station input and is connected；Image intensifer output end passes sequentially through demultiplexer, optical receiver is connected with the communication input of communications processor element；The electric signal progress serioparallel exchange that communications processor element is used to receive obtains data message, then caches data letter Breath, the main frame for notifying to be connected with main frame connection end read the data message of caching；And by communications processor element reading by described Data message that main frame is sent on optical switch, carry out parallel-serial conversion and obtain electric signal, light is passed to by communication output Transmitter input；Optical transmitter is used to the electric signal received being converted to optical signal, and is sent by Node station output end optical signal to right The multiplexer inputs answered；The demultiplexer includes demultiplexer output end, and optical receiver includes optical receiver input and optical receiver exports End, demultiplexer output end, optical receiver input, optical receiver output end and the communication input have multiple, demultiplex Corresponded and be connected with optical receiver input with device output end, optical receiver output end corresponds phase with communication input Even.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114189769B (en) * | 2021-10-25 | 2023-12-22 | 中国航空工业集团公司西安航空计算技术研究所 | On-board network optical switch supporting multiple communication modes and routing method |
| CN115865848B (en) * | 2022-12-09 | 2024-07-12 | 无锡芯光互连技术研究院有限公司 | Optical data packet switching method, device and storage medium |
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| CN102237977A (en) * | 2011-07-05 | 2011-11-09 | 北京大学 | Polarized interweaving OFDM (Orthogonal Frequency Division Multiplexing)/SCFDM (Singe Carrier Frequency Division Multiplexing) passive optical network system |
| CN102598565A (en) * | 2009-10-26 | 2012-07-18 | 瑞典爱立信有限公司 | Improvements in optical communications networks |
| CN102916890A (en) * | 2012-10-17 | 2013-02-06 | 重庆邮电大学 | Shared wavelength conversion device and method for solving multicast competition |
| CN103957477A (en) * | 2014-05-14 | 2014-07-30 | 东南大学 | Power-grid-service-oriented optical switching method and network |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3823837B2 (en) * | 2002-01-31 | 2006-09-20 | 日本電気株式会社 | Optical communication network and optical communication network design method used therefor |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1406022A (en) * | 2001-09-17 | 2003-03-26 | 三星电子株式会社 | Daisy chain wave-division shared apparatus and daisy chain wave-division multiplexing system and transmission network |
| CN1601986A (en) * | 2003-09-26 | 2005-03-30 | 三星电子株式会社 | Ethernet passive optical network for integrating broadcast and communication based on time division multiplexing scheme |
| CN102598565A (en) * | 2009-10-26 | 2012-07-18 | 瑞典爱立信有限公司 | Improvements in optical communications networks |
| CN102237977A (en) * | 2011-07-05 | 2011-11-09 | 北京大学 | Polarized interweaving OFDM (Orthogonal Frequency Division Multiplexing)/SCFDM (Singe Carrier Frequency Division Multiplexing) passive optical network system |
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| CN103957477A (en) * | 2014-05-14 | 2014-07-30 | 东南大学 | Power-grid-service-oriented optical switching method and network |
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