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Optical switch matrix and its control method

An optical switch matrix and optical signal technology, applied in the field of optical communication, can solve the problems of large PDL and DGD

Active Publication Date: 2020-04-28
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides an optical switch matrix and its control method, which is used to solve the problem in the prior art that the optical signals in the optical communication network have relatively large PDL and DGD after being processed by the optical switch matrix

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  • Optical switch matrix and its control method
  • Optical switch matrix and its control method

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Embodiment Construction

[0087] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0088] The present invention can be applied in an optical switch matrix, and the optical switch matrix is ​​used for performing wavelength selection, routing selection and other processing on optical signals in an optical communication network. Wherein, the optical signals in the optical communication network may include single-mode optical signal...

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Abstract

Provided are an optical switch matrix and a control method thereof. The problem of the polarization dependent loss (PDL) and dispersion group delay (DGD) being greater after optical signals in an optical communication network are processed by an optical switch matrix is addressed by having a first single-mode optical signal and a second single-mode optical signal in an optical communication network passing through waveguides of the same length in a first mode within the optical switch matrix, being processed with the same apparatus, and undergoing one mode conversion. Also, the difference in the number of intersecting waveguides on different waveguides is reduced by disposing a first intersecting waveguide (19), a second intersecting waveguide (20), a third intersecting waveguide (21) and a fourth intersecting waveguide (22), thus further reducing PDL.

Description

technical field [0001] Embodiments of the present invention relate to the field of optical communications, and in particular to an optical switch matrix and a control method thereof. Background technique [0002] With the rapid development of optical communication systems and the introduction of dense wavelength division multiplexing technology, the optical switch matrix has become a crucial component in the field of optical communication, which can realize important functions such as routing selection, wavelength selection, and optical cross-connection. [0003] In the prior art, optical signals in an optical communication network may include single-mode optical signals of different modes. Generally, the optical switch matrix is ​​mainly composed of waveguides and devices formed by the waveguides, where the devices may be, for example, optical switches, polarization rotator beam splitters (PSR, Polarization Splitter Rotator) and the like. Due to the different lengths of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/35G02B6/26G02B6/27
CPCG02B6/266G02B6/27G02B6/2773G02B6/354H04Q11/00
Inventor 赵飞
Owner HUAWEI TECH CO LTD
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