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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 24 — Aug. 20, 2011
  • pp: 4834–4843

Analysis of broadly tunable coupled-cavity semiconductor lasers

Ferdous K. Khan and Daniel T. Cassidy  »View Author Affiliations


Applied Optics, Vol. 50, Issue 24, pp. 4834-4843 (2011)
http://dx.doi.org/10.1364/AO.50.004834


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Abstract

We report on the spectral properties for above-threshold operation of broadly tunable, asymmetric multiple quantum well (AMQW), coupled-cavity InGaAsP/InP semiconductor diode lasers. We developed a traveling wave model to understand the mode selection that the lasers exhibit. We find that a weak, short external cavity (SXC) can be used to obtain single frequency operation on each longitudinal mode over the 100 nm tuning range of the uncoated AMQW coupled-cavity lasers. We measured the spectral properties of AMQW coupled-cavity lasers with and without an SXC. In a synthesized optical co herent optical tomography application, the use of an SXC with an AMQW coupled-cavity laser reduces the coherence length and hence enhances the performance of the AMQW coupled-cavity laser for optical coherence tomography applications.

© 2011 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3570) Lasers and laser optics : Lasers, single-mode
(140.3600) Lasers and laser optics : Lasers, tunable
(140.5960) Lasers and laser optics : Semiconductor lasers
(140.3325) Lasers and laser optics : Laser coupling

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: January 10, 2011
Revised Manuscript: May 9, 2011
Manuscript Accepted: June 7, 2011
Published: August 16, 2011

Citation
Ferdous K. Khan and Daniel T. Cassidy, "Analysis of broadly tunable coupled-cavity semiconductor lasers," Appl. Opt. 50, 4834-4843 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-24-4834

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