Fast, large and controllable phase modulation using dual frequency liquid crystals

被引：44

作者：

Kirby, AK ^{[1
]}

Love, GD ^{[1
]}

机构：

[1] Univ Durham, Dept Phys, Durham DH1 3LE, England

来源：

OPTICS EXPRESS | 2004年 / 12卷 / 07期

关键词：

D O I：

10.1364/OPEX.12.001470

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on a method for high speed, large stroke phase modulation using dual frequency control of liquid crystals. Our system uses an all-electronic feedback system in order to simplify the control. We show half wave phase modulations of similar to 120Hz with the operating point varying over nearly the full dynamic range of the device, and demonstrate larger phase shifts (2.5 waves) at a frequency of 37Hz. For large phase shifts, the speeds are an order of magnitude faster than existing techniques. (C) 2004 Optical Society of America.

引用

页码：1470 / 1475

页数：6

共 9 条

[1] THE PI-CELL - A FAST LIQUID-CRYSTAL OPTICAL-SWITCHING DEVICE [J].