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Constitution and control method for odd-port light switch matrix

A technology of optical switch matrix and control method, applied in the direction of optical waveguide coupling, wavelength division multiplexing system, etc., can solve problems such as waste of resources, and achieve the effects of simple control, flexible control mode, and simple process

Inactive Publication Date: 2005-12-14
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 used to construct the optical switch matrix in the present invention is an optical switch and a coupler, and various optical switch matrices with odd ports can be constructed by using these two basic units, such 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 r...

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Abstract

The present invention provides a method for constructing and controlling an optical switch matrix with odd-numbered ports, including an optical switch and a coupler, and is constructed by using N+1 1×N optical switches and N+1 N:1 couplers (N+1 )×(N+1) optical switch matrix, N is an even number less than or equal to 8. The N output ports of each 1×N optical switch are respectively connected to the input ports of N N:1 couplers, leaving one N:1 coupler unconnected. Similarly, the input ports of each N:1 coupler are respectively connected to Output ports of N 1×N optical switches. The Kth (1≤K≤N+1) optical switch is not connected to the Kth (1≤K≤N+1) coupler. Through the control of each 1×N optical switch, the input optical signal is output to any one of the N output ports, but the input optical signals of different 1×N optical switches are output to the input terminals of different couplers . The coupler is realized by using a combiner and a beam splitter, respectively.

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