Share Email Print
cover

Proceedings Paper

Polarization control using nematic liquid crystals
Author(s): Ruud A.W. Gelissen; Yu Huang; Nabeel A. Riza
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

A new type of nematic liquid crystal (NLC) based polarization independent 1 X 2 optical switch is demonstrated. Experiments show that this system is capable of converting any arbitrary input polarization into a horizontal or vertical output of high polarization extinction ratio (> 26 dB). Moreover, a basic polarization independent alignment tolerant 1 X 2 optical switch is proposed and demonstrated, comprising a NLC-based polarization controller in cascade with half wave plates. Experiments show that this system is capable of realizing a high switch contrast (> 27 dB), nearly independent on the input polarization. The measured polarization extinction ratio of the output light was about 40 dB. Our NLC-based polarization control provides low driving voltages (< 5 V), no moving parts, high performance and possible low insertion loss.

Paper Details

Date Published: 13 July 2000
PDF: 12 pages
Proc. SPIE 4046, Advances in Optical Information Processing IX, (13 July 2000); doi: 10.1117/12.391940
Show Author Affiliations
Ruud A.W. Gelissen, CREOL/Univ. of Central Florida (United States)
Yu Huang, CREOL/Univ. of Central Florida (United States)
Nabeel A. Riza, CREOL/Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 4046:
Advances in Optical Information Processing IX
Dennis R. Pape, Editor(s)

© SPIE. Terms of Use
Back to Top