Wavelength selection switch device, wavelength switching method for same and communication device

Abstract

The invention provides a wavelength selection switch device, a communication device and a wavelength switching method. The wavelength selection switch device comprises an incident unit, an emergent unit, a wavelength dispersion and synthesis unit, a light control unit, a liquid crystal light beam deflection unit, a reflection unit and a deflection driving unit, wherein the incident unit comprises a plurality of incident light rays, the emergent unit comprises a plurality of emergent light rays, the wavelength dispersion and synthesis unit is used for dispersing and multiplexing each incident light ray on the first axial direction according to wavelengths, the light control unit is used for enabling different-wavelength light rays dispersed on the first axial direction not to be dispersed in the second axial direction, a plurality of pixels of the liquid crystal light beam deflection unit are divided into sub-areas corresponding to all the wavelengths, deflection is conducted on light rays with different wavelengths by changing phase-shift characteristics of the pixels of the sub-areas, the reflection unit is arranged parallel to the liquid crystal light beam deflection unit, the deflection driving unit drives the electrodes of the pixels of the sub-areas to generate needed phase-shift characteristics, and then light rays entering the sub-areas are deflected. According to the technical scheme, the number of ports of the wavelength selection 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 can not be output from the same output port, and the bandwidth of optical signals of different wavelengths is fixed. adjust

[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

Images