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Optics Letters

Optics Letters


  • Vol. 33, Iss. 9 — May. 1, 2008
  • pp: 986–988

Avoided-crossing-based liquid-crystal photonic-bandgap notch filter

Danny Noordegraaf, Lara Scolari, Jesper Lægsgaard, Thomas Tanggaard Alkeskjold, Giovanni Tartarini, Elena Borelli, Paolo Bassi, Jun Li, and Shin-Tson Wu  »View Author Affiliations

Optics Letters, Vol. 33, Issue 9, pp. 986-988 (2008)

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We demonstrate a highly tunable deep notch filter realized in a liquid-crystal photonic-bandgap (LCPBG) fiber. The filter is realized without inducing a long-period grating in the fiber but simply by filling a solid-core photonic-crystal fiber with a liquid crystal and exploiting avoided crossings within the bandgap of the LCPBG fiber. The filter is demonstrated experimentally and investigated using numerical simulations. A high degree of tuning of the spectral position of the deep notch is also demonstrated.

© 2008 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(230.3720) Optical devices : Liquid-crystal devices
(230.3990) Optical devices : Micro-optical devices
(230.7408) Optical devices : Wavelength filtering devices

ToC Category:
Optical Devices

Original Manuscript: October 18, 2007
Revised Manuscript: February 21, 2008
Manuscript Accepted: February 24, 2008
Published: April 29, 2008

Danny Noordegraaf, Lara Scolari, Jesper Lægsgaard, Thomas Tanggaard Alkeskjold, Giovanni Tartarini, Elena Borelli, Paolo Bassi, Jun Li, and Shin-Tson Wu, "Avoided-crossing-based liquid-crystal photonic-bandgap notch filter," Opt. Lett. 33, 986-988 (2008)

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