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Optical add-drop multiplexer and optical network signal transmission method

A technology of optical add-drop multiplexer and signal transmission, applied in the field of optical communication

Active Publication Date: 2018-08-21
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Embodiments of the present invention provide an optical add-drop multiplexer and a method for transmitting optical network signals to solve the technical problem that the optical add-drop multiplexer only supports optical signal transmission in one direction

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  • Optical add-drop multiplexer and optical network signal transmission method
  • Optical add-drop multiplexer and optical network signal transmission method
  • Optical add-drop multiplexer and optical network signal transmission method

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Embodiment Construction

[0054] 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.

[0055] Additionally, the terms "system" and "network" are used interchangeably herein. The term "and / or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B thes...

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Abstract

The present invention relates to the field of communication technology, in particular to an optical add-drop multiplexer, which is used to ensure that the light in two directions is correctly processed by the optical add-drop multiplexer; the optical add-drop multiplexer can pass a micro The ring resonator and two optical circulators complete the separation of signals in one direction. At the same time, if the signal in the other direction has the same wavelength as the resonant wavelength of the micro-ring resonator, it can pass through the two micro-ring resonators. After re-entering the optical network with an optical circulator, it will not be affected. This ensures that the optical signals in the two directions can be correctly processed without interfering with each other.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to an optical add-drop multiplexer and an optical network signal transmission method. Background technique [0002] An optical add-drop multiplexer (Optical Add-Drop Multiplexer, OADM), used for multiplexing and routing optical signals of different channels in a WDM (Wavelength Division Multiplexer, wavelength division multiplexing) optical network. The optical add-drop multiplexer is located on the optical network node, and the optical network node exchanges data with the WDM optical network through the optical add-drop multiplexer. [0003] In the prior art, it is currently proposed to use a microring resonator as an optical add / drop multiplexer. For details, please refer to figure 1 . [0004] Such as figure 1 As shown, 28a and 28b are two optical waveguides, 26 is a micro-ring resonator, and the transmission direction of the optical signal in the micro-ring reso...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J14/02
CPCH04J14/0216H04J14/0201H04B10/27H04J14/0202H04J14/0215
Inventor 魏文雄
Owner HUAWEI TECH CO LTD