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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 18 — Sep. 5, 2005
  • pp: 7243–7249

Electrically tunable lasers made from electro-optically active photonics band gap materials

Haiping Yu, Benjamin Tang, Jianhui Li, and Le Li  »View Author Affiliations


Optics Express, Vol. 13, Issue 18, pp. 7243-7249 (2005)
http://dx.doi.org/10.1364/OPEX.13.007243


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Abstract

External cavity-free and electrically tunable laser made from photonics band gap (PBG) materials with electrically tunable stop band is reported. The tunable PBG materials are developed from a family of novel cholesteric liquid crystals (CLC) with electrically variable pitch that adopts a non-constant distribution in space across the CLC film. The CLC exhibits a distributed feedback cavity whose resonant frequency can be electrically varied over a spectral range wider than 300 nm. Under an optical pumping and subject to a variable electric field, a tunable laser has been demonstrated in experiment that shows a wavelength tuning over 33 nm.

© 2005 Optical Society of America

OCIS Codes
(140.3490) Lasers and laser optics : Lasers, distributed-feedback
(140.3600) Lasers and laser optics : Lasers, tunable
(160.3710) Materials : Liquid crystals
(250.2080) Optoelectronics : Polymer active devices

ToC Category:
Research Papers

History
Original Manuscript: June 14, 2005
Revised Manuscript: August 30, 2005
Published: September 5, 2005

Citation
Haiping Yu, Benjamin Tang, Jianhui Li, and Le Li, "Electrically tunable lasers made from electro-optically active photonics band gap materials," Opt. Express 13, 7243-7249 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-18-7243


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