HIGH-SPEED ANALOG REFRACTIVE-INDEX MODULATOR THAT USES A CHIRAL SMECTIC LIQUID-CRYSTAL

被引：16
|
作者：
SNEH, A
LIU, JY
JOHNSON, KM
机构：
[1] Optoelectronic Computing Systems Center, University of Colorado at Boulder, Boulder, CO, 80309-0425
来源：
OPTICS LETTERS | 1994年 / 19卷 / 04期
关键词：
D O I：
10.1364/OL.19.000305
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate a fast liquid-crystal analog phase modulator composed of a homeotropically aligned electroclinic chiral smectic liquid crystal. Pure phase modulation is obtained by electrical modulation of the refractive index of the liquid crystal. A refractive-index change of 0.045 can be obtained at a 5-mus switching speed with a 15-V/mum applied electric field by use of the commercial electroclinic chiral smectic liquid crystal mixture BDH764E. This results in a pi phase modulation depth at lambda = 0.633 mum in a device of 10-mum thickness.
引用
收藏
页码：305 / 307
页数：3
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