Wavelength selective switch device, wavelength switching method therefor, and communication equipment

Abstract

Provided are a wavelength selective switch device, a communication device, and a wavelength switching method. The wavelength selective switch device includes: an incident unit, including a plurality of incident lights; an exit unit, including a plurality of outgoing lights; a wavelength dispersion synthesis unit, which disperses and multiplexes each incident light in the first axial direction according to the wavelength; a light control unit , used to make the light of each wavelength dispersed on the first axis not to disperse on the second axis; the liquid crystal beam deflection unit, wherein a plurality of pixels are divided into sub-regions respectively corresponding to each wavelength, by changing the sub-region The phase shift characteristics of the pixels in the area are used to deflect the light of each wavelength; the reflection unit is arranged in parallel with the liquid crystal beam deflection unit; the deflection drive unit drives the electrodes of the pixels in each sub-area to generate the required phase shift characteristics, thereby deflecting the light entering the respective sub-regions. In the technical solutions according to the embodiments of the present application, the number of ports of the wavelength selective switch device is greatly increased.

Description

technical field [0001] The present application relates to the technical field of communication, and more specifically, to a wavelength selective switch device, a communication device including the wavelength selective switch device, and a wavelength switching method for the wavelength selective switch device. Background technique [0002] The intelligent optical network can fully tap the bandwidth potential of the optical network, generate various new services directly in the optical domain, and meet the diverse and personalized user needs, so its development has attracted much attention. An intelligent optical network is mainly composed of a series of highly flexible system equipment. A wavelength selective switch (WSS, Wavelength Selective Switch) is one of the important components of an intelligent optical network. The wavelength selective switch can be used to realize the add, drop and pass-through of optical signals of various wavelengths. [0003] Existing wavelength ...

AI Technical Summary

Problems solved by technology

In the multi-port wavelength selective switch made by Micro Electro Mechanical System (MEMS), different wavelengths of different input ports cannot be output from the same output port, and the bandwidth of optical signals of different wavelengths is fixed and cannot be adjusted.

[0004] With the development of the intelligent optical network to a higher-dimensional mesh system, the number of wavelength selective switches in the intelligent optical network is greatly increased due to the limited number of ports of the existing wavelength selective switch, and the network management is also more complicated. also increased accordingly

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