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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 21 — Jul. 20, 2001
  • pp: 3509–3517

Compact optical-fiber variable attenuator arrays with polymer-network liquid crystals

Katsuhiko Hirabayashi, Masato Wada, and Chikara Amano  »View Author Affiliations


Applied Optics, Vol. 40, Issue 21, pp. 3509-3517 (2001)
http://dx.doi.org/10.1364/AO.40.003509


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Abstract

Electrically controlled fiber variable-optical-attenuator arrays with polymer-network liquid crystals are shown to be compact and to have a large attenuation range (30–40 dB) and low residual loss (0.55 dB) at wavelengths from 1.3 to 1.6 µm. Their estimated power consumption is very low (<30 nW/channel), and arrays with more than ten channels can be made. The manufacturing process is simple: Trenches 30–100 µm wide are cut across parallel conductive-layer-coated optical fibers and are filled with a polymer-network liquid crystal. The attenuation properties depend on UV-curing conditions and on trench width.

© 2001 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.2340) Fiber optics and optical communications : Fiber optics components
(160.3710) Materials : Liquid crystals
(230.2090) Optical devices : Electro-optical devices
(230.3720) Optical devices : Liquid-crystal devices
(230.4110) Optical devices : Modulators

History
Original Manuscript: September 12, 2000
Revised Manuscript: March 6, 2001
Published: July 20, 2001

Citation
Katsuhiko Hirabayashi, Masato Wada, and Chikara Amano, "Compact optical-fiber variable attenuator arrays with polymer-network liquid crystals," Appl. Opt. 40, 3509-3517 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-21-3509

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