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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 17 — Aug. 18, 2008
  • pp: 13168–13174

Liquid crystal modulator with ultra-wide dynamic range and adjustable driving voltage

Xing-jun Wang, Zhang-di Huang, Jing Feng, Xiang-fei Chen, Xiao Liang, and Yan-qing Lu  »View Author Affiliations

Optics Express, Vol. 16, Issue 17, pp. 13168-13174 (2008)

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We demonstrated a reflective-type liquid crystal (LC) intensity modulator in 1550 nm telecomm band. An effective way to compensate the residual phase of a LC cell is proposed. With the adjustment of a true zero-order quarter wave plate and enhanced by total internal reflection induced birefringence, over 53 dB dynamic range was achieved, which is much desired for some high-end optical communication, infrared scene projection applications. In addition, the driving voltages were decreased and adjustable. Mechanical and spectral tolerance measurements show that our LC modulator is quite stable. Further applications of our experimental setup were discussed including bio-sensors and high speed modulators.

© 2008 Optical Society of America

OCIS Codes
(060.2340) Fiber optics and optical communications : Fiber optics components
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Optical Devices

Original Manuscript: May 9, 2008
Revised Manuscript: June 22, 2008
Manuscript Accepted: June 23, 2008
Published: August 13, 2008

Virtual Issues
Vol. 3, Iss. 10 Virtual Journal for Biomedical Optics

Xing-jun Wang, Zhang-di Huang, Jing Feng, Xiang-fei Chen, Xiao Liang, and Yan-qing Lu, "Liquid crystal modulator with ultra-wide dynamic range and adjustable driving voltage," Opt. Express 16, 13168-13174 (2008)

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