A kind of optical switcher based on lcos

Abstract

The invention provides an optical switch based on an LCoS (liquid crystal on silicon). The optical switch comprises a polarization beam splitting prism I, a non-polarization beam splitting prism, the LCoS and a polarization beam splitting prism II, wherein the polarization beam splitting prism I, the non-polarization beam splitting prism and the LCoS are positioned on the same horizontal optical axis; the polarization beam splitting prism II is positioned in the vertical beam splitting direction of the non-polarization beam splitting prism; a light source I and a light source II are simultaneously radiated to the polarization beam splitting prism I and the non-polarization beam splitting prism, and then are radiated onto the LCoS, gray scales loaded onto the LCoS are switched, and then the light source I and the light source II are respectively modulated, so as to realize the optical switching function.

Description

technical field [0001] The present invention relates to non-mechanical optical switching technology, and more specifically, the present invention relates to a technology of realizing optical switching by using LCoS (liquid crystal on silicon). Background technique [0002] An optical switch is a device for selecting optical signals, and has broad application prospects in the fields of optical networks and information display. Traditional optical switches are usually realized by using rotating mechanical parts and optical filters, which have problems such as complex structure and difficult modulation. Non-mechanical optical switches such as liquid optical switches are generally based on the dielectric force effect to control dyeing droplets to achieve light selection, which has the advantages of fast response time and low operating voltage, but because the dielectric force itself is relatively weak, so The size of the liquid optical switch based on the dielectric force effec...

AI Technical Summary

Problems solved by technology

Traditional optical switches are usually implemented with rotating mechanical parts and optical filters, which have problems such as complex structure and difficult modulation

Non-mechanical optical switches such as liquid optical switches are generally based on the dielectric force effect to control dyeing droplets to achieve light selection, which has the advantages of fast response time and low operating voltage, but because the dielectric force itself is relatively weak, so The size of the liquid optical switch based on the dielectric force effect is small, which seriously limits its application range. In addition, due to the loss of the liquid device itself, it is difficult to meet the long-term use.

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