Optical communication device and wavelength selection method

An optical communication and sub-wavelength technology, applied in the field of communication, can solve the problems of large signal insertion loss and filtering

CN111856658AActive Publication Date: 2020-10-30HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2020-10-30

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Abstract

The invention discloses an optical communication device. The optical communication device can be a reconfigurable optical add-drop multiplexer. According to the invention, a light deflection assemblycan perform angle deflection on the plurality of first sub-wavelength light beams which are incident from a first input assembly and are dispersed by a first wavelength dispersion assembly to obtain aplurality of second sub-wavelength light beams; the plurality of second sub-wavelength light beams are propagated to a second optical switch array, synthesized by a third wavelength dispersion assembly; dimension output is carried out through a first output assembly; the light deflection assembly can perform angle deflection on the plurality of first sub-wavelength light beams to obtain a plurality of third sub-wavelength light beams, the third sub-wavelength light beams are synthesized by the second wavelength dispersion assembly, incident to a third optical switch array and output in a lower wave mode through a second output assembly, and the light beam propagation directions of the second sub-wavelength light beams and the third sub-wavelength light beams are different. According to the invention, the insertion loss of the lower wave signal caused by the first-stage optical switch array can be reduced.
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Description

technical field

[0001] The present application relates to the communication field, and in particular to an optical communication device and a wavelength selection method. Background technique

[0002] With the rapid growth of video and cloud services, operators are particularly concerned about the flexibility of optical network construction and the reduction of optical network construction and operation and maintenance costs. Network nodes need more and more directional dimensions (or transmission paths) for cross-connection. Operators can remotely and automatically switch dimensions by using reconfigurable optical add-drop multiplexers (ROADMs). , to replace the previous way of manually going down the site to replace the fiber connection, so as to meet the requirements of network dynamic connection.

[0003] With the rapid development of ROADM technology, ROADM (CDC ROADM for short) with colorless (wavelength independent) characteristics, directionless (direction independe...

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Embodiment Construction

[0153] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings in this embodiment. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0154] The terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood th...