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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 26 — Sep. 10, 2010
  • pp: 4846–4850

Loss-reduced photonic liquid-crystal fiber by using photoalignment method

Ching-Hsiang Chen, Chun-Hong Lee, and Tsung-Hsien Lin  »View Author Affiliations


Applied Optics, Vol. 49, Issue 26, pp. 4846-4850 (2010)
http://dx.doi.org/10.1364/AO.49.004846


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Abstract

We present a loss-reduced photonic liquid-crystal fiber (PLCF) using the noncontact photoalignment method. The photoexcited and adsorbed azo dye on the capillary surface of a PLCF induces uniform and highly ordered orientation of the liquid crystal (LC). The anchoring force of the photoalignment effect is combined with that generated by surface boundary conditions of the photonic crystal fiber (PCF). Transmission loss resulting from LC scattering can be reduced from 2.8 to 1.3 db / cm within 10 min . This photoinduced alignment yields a permanent boundary for the LC in the PCF that reduces scattering loss and can be further modulated by electrical fields. The electrical tunable effect and fast dynamic response of the photoaligned PLCF are also presented. This low-loss PLCF can be applied conveniently in various PLCF devices.

© 2010 Optical Society of America

OCIS Codes
(160.3710) Materials : Liquid crystals
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Materials

History
Original Manuscript: April 8, 2010
Revised Manuscript: July 7, 2010
Manuscript Accepted: August 6, 2010
Published: September 2, 2010

Citation
Ching-Hsiang Chen, Chun-Hong Lee, and Tsung-Hsien Lin, "Loss-reduced photonic liquid-crystal fiber by using photoalignment method," Appl. Opt. 49, 4846-4850 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-26-4846


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