Adaptive modulation system for liquid crystal phase modulator  

作　　者：张彬 刘诗雨 唐先柱 陆建钢 

机构地区：[1]Department of Electronic Engineering and National Engineering Lab for TFT-LCD Materials and Technologies,Shanghai Jiao Tong University

出　　处：《Chinese Optics Letters》2016年第9期20-23,共4页中国光学快报（英文版）

基　　金：supported by the National Basic Research Program of China(No.2013CB328804);the National High Technology Research and Development Program of China(No.SS2015AA017001);the National Natural Science Foundation of China(No.61275026)

摘　　要：An adaptive modulation system for a liquid crystal（LC） phase modulator is demonstrated. The phase retardation may be modulated by resetting the driving voltage automatically by matching the measured and ideal transmittance of an LC cell sandwiched by crossed polarizers. By using this system, an LC phase modulator can get a low error function of 0.25% in a short modulation time, which is less than the 10% obtained using a conventional modulation method.An adaptive modulation system for a liquid crystal（LC） phase modulator is demonstrated. The phase retardation may be modulated by resetting the driving voltage automatically by matching the measured and ideal transmittance of an LC cell sandwiched by crossed polarizers. By using this system, an LC phase modulator can get a low error function of 0.25% in a short modulation time, which is less than the 10% obtained using a conventional modulation method.

关 键 词：Liquid crystals MODULATION Phase modulation 

分 类 号：TN761[电子电信—电路与系统] O753.2[理学—晶体学]