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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 23 — Aug. 10, 2007
  • pp: 5866–5869

C-band external-cavity wavelength-tunable laser based on a liquid-crystal deflector

P. Wang, L. K. Seah, V. M. Murukeshan, Z. X. Chao, and X. J. Yin  »View Author Affiliations


Applied Optics, Vol. 46, Issue 23, pp. 5866-5869 (2007)
http://dx.doi.org/10.1364/AO.46.005866


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Abstract

A novel C-band external-cavity wavelength-tunable laser is proposed. The laser consists of a semiconductor gain chip, a collimating lens, a fixed etalon, a liquid-crystal deflector and a diffraction grating in a Littrow configuration. The lasing wavelength of this tunable external-cavity laser can be tuned to 19 wavelength channels of 100   GHz spacing. All channels are within 2.5   GHz of the ITU grids with a side-mode suppression ratio of approximately 35   dB over the whole range.

© 2007 Optical Society of America

OCIS Codes
(140.2020) Lasers and laser optics : Diode lasers
(140.3410) Lasers and laser optics : Laser resonators
(140.3570) Lasers and laser optics : Lasers, single-mode
(140.3600) Lasers and laser optics : Lasers, tunable
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: March 21, 2007
Manuscript Accepted: June 6, 2007
Published: August 9, 2007

Citation
P. Wang, L. K. Seah, V. M. Murukeshan, Z. X. Chao, and X. J. Yin, "C-band external-cavity wavelength-tunable laser based on a liquid-crystal deflector," Appl. Opt. 46, 5866-5869 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-23-5866

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