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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 25 — Dec. 13, 2004
  • pp: 6382–6389

Submillisecond response variable optical attenuator based on sheared polymer network liquid crystal

Yung-Hsun Wu, Yi-Hsin Lin, Yan-Qing Lu, Hongwen Ren, Yun-Hsing Fan, Janet R. Wu, and Shin-Tson Wu  »View Author Affiliations

Optics Express, Vol. 12, Issue 25, pp. 6382-6389 (2004)

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We demonstrate a variable optical attenuator (VOA) at λ=1.55 µm using a sheared polymer network liquid crystal (SPNLC). The SPNLC exhibits a fast response time and weak wavelength dependency. Comparing with other polymer-stabilized liquid crystals, the SPNLC has lower driving voltage and negligible light scattering loss when the wavelength exceeds 700 nm. A reflection type VOA with ~0.24 ms response time and -32 dB dynamic range is demonstrated at room temperature and 35 Vrms voltage.

© 2004 Optical Society of America

OCIS Codes
(160.5470) Materials : Polymers
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Research Papers

Original Manuscript: November 19, 2004
Revised Manuscript: December 6, 2004
Published: December 13, 2004

Yung-Hsun Wu, Yi-Hsin Lin, Yan-Qing Lu, Hongwen Ren, Yun-Hsing Fan, Janet Wu, and Shin-Tson Wu, "Submillisecond response variable optical attenuator based on sheared polymer network liquid crystal," Opt. Express 12, 6382-6389 (2004)

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