TY - JOUR
AU - Lee , , Wei-Yu
AB -  19 (1998) 1 J. Opt. Commun. 19 (1998) 1, 9-14 S © by Fachverlag Schiele & Schön 1998 Kun-Yi Lee*, Wei-Ching Chuang**, Wei-Yu Lee* Summary We propose a wavelength-insensitive optical switch using twist nematic liquid crystals (TNLCs) for multimode or single-mode fiber communication system applications. Based on the simple and widely used liquid crystal display (LCD) structure, the optical switch has the potential advantages such as being inexpensive, with simple fabrication processes, and easy mass production. The operation of the liquid crystal (LC) optical switch is described by the Jones matrix. In our experiments, the preferable operating frequency of the device from 0.1 kHz to 10 kHz ac wave is measured. The critical and saturated voltage are as low as 3 Vrms and 5.8 V™, respectively. The high extinction ratio about 28.3 dB is also obtained. LC technology has also opened up possible applications of NLC devices in optical signal processing systems [10-15] because of its high optical birefringence properties (0.1-0.2) which are easily controlled by small (~5 V) electrical signals [16]. So, it is possible to modulate the amplitude and/or phase of optical signals. Optical switch using NLC cells have the following advantages: low insertion loss, no 
TI - Wavelength-insensitive Liquid Crystal Optical Switch for Multi- or Single-mode Fiber Optics Communication
JF - Journal of Optical Communications
DO - 10.1515/JOC.1998.19.1.9
DA - 1998-02-01
UR - https://www.deepdyve.com/lp/de-gruyter/wavelength-insensitive-liquid-crystal-optical-switch-for-multi-or-4n0GCkY7c4
SP - 9
VL - 19
IS - 1
DP - DeepDyve
ER -