Constitution and control method for odd-port light switch matrix

An optical switch matrix and control method technology, which is applied to the coupling of optical waveguides, wavelength division multiplexing systems, etc., can solve problems such as waste of resources, and achieve the effects of simple control, flexible control method, and simple process

Inactive Publication Date: 2004-11-24
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Currently, optical switch matrices built with simple optical switches can only provide even ports, such as 4×4, 8×8 and other optical switch matrices
However, when an optical switch matrix with odd ports is used in the actual application process, only an optical switch matrix larger than required can be used to meet the demand, resulting in waste of resources

Method used

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  • Constitution and control method for odd-port light switch matrix
  • Constitution and control method for odd-port light switch matrix
  • Constitution and control method for odd-port light switch matrix

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Embodiment Construction

[0022] The basic unit that the present invention is used to construct optical switch matrix is ​​optical switch and coupler, utilizes these two kinds of basic units and can construct the optical switch matrix of various odd ports, as 3 * 3, 5 * 5, ..., (N+1 )×(N+1) optical switch matrix, where N is an even number. However, the optical switch matrix is ​​not completely non-blocking, that is, although the input signal of the input port K (1≤K≤N+1) can be output from other ports, it is impossible to output the signal from the output port K (1≤K≤N+1) ) output, that is, it cannot be realized that any input terminal can output light waves to any output terminal at any time. Among them, the 1×N optical switches are usually reversible optical paths. Assuming that one port is input and one of the N ports is used as the output, it is called a 1×N optical switch at this time. Assuming that N ports are used as input ports, which one is controlled by the switch When the input of the port ...

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Abstract

The present invention provides the construction and control method of optical switch matrix with odd ports. The (N+1)x(N+1) optical switch matrix is constituted with N+1 1xN optical switches and N+1 N:1 couplers, with N is even number not greater than 8. The N output ports of each 1xN optical switch are connected to the input ports of N N:1 couplers separately, with one of the N:1 couplers being not connected. The N input ports of each N:1 coupler are connected to the output ports of the N 1xN optical switches separately, and the K-th optical switch and the K-th coupler are not connected, with K being a number from 1 to N+1. By means of controlling each of the 1xN optical switches, the input light signal may be output to any one of the N output ports, and input light signals of different optical switches are output to the input ports of different couplers. The couplers are realized with wave synthesizer and beam splitter.

Description

technical field [0001] The invention relates to a method for constructing and controlling an optical switch matrix with odd ports, which can be applied to optical switches in optical cross-connect equipment (OXC), optical add-drop multiplexing equipment (OADM) and wavelength division multiplexing systems (DWDM). Applications where the matrix requires. Background technique [0002] The application of the wavelength division multiplexing system enables multiple wavelengths to be transmitted in one optical fiber, thereby greatly increasing the available bandwidth in one optical fiber and reducing bandwidth costs. Now the wavelength division multiplexing system has been successfully applied in the communication network, and has achieved huge economic benefits. With the gradual maturity and commercialization of communication products using WDM technology, the research and development of complex networks using WDM technology, such as ring networks and grid networks, has become th...

Claims

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Application Information

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IPC IPC(8): G02B6/26G02B6/35H04J14/02
Inventor 魏学勤谢秋红朱冰
Owner FENGHUO COMM SCI & TECH CO LTD
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