Reconfigurable multilevel phase holograms for optical switches

被引：54

作者：

Manolis, IG ^{[1
]}

Wilkinson, TD ^{[1
]}

Redmond, MM ^{[1
]}

Crossland, WA ^{[1
]}

机构：

[1] Univ Cambridge, Dept Engn, Photon & Sensors Grp, Cambridge CB2 1PZ, England

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2002年 / 14卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

beam steering; holographic gratings; liquid crystal devices; optical fiber switches; spatial light modulators;

D O I：

10.1109/LPT.2002.1003098

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A way of dynamically encoding polarization-insensitive multilevel phase holograms using nematic liquid crystals is presented. The method, using a quarter wave plate and a mirror, allows the optical efficiency of a free space single-mode fiber-to-fiber switch to be greatly enhanced. The validity of the approach has been verified experimentally by observing the power diffracted in the +/-1 orders of a nematic liquid crystal grating as a function of input polarization and applied voltage.

引用

页码：801 / 803

页数：3

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