Gain and index saturation in circular-grating distributed-feedback semiconductor lasers

Keith J. Kasunic, Mahmoud Fallahi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

We report numerical results for the above-threshold spectral properties of circular-grating distributed-feedback semiconductor lasers. Our model includes a radially-varying gain and index saturation, as well as a uniformly- distributed grating loss, in the solution of the coupled- mode equations. Our results show a multi-mode spectrum for large coupling strengths, a consequence of mode competition induced by the spatially-varying gain distribution associated with the grating losses. We also find that a single-mode spectrum is possible over a limited power range.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages205-214
Number of pages10
ISBN (Print)0819424056
StatePublished - Dec 1 1997
EventPhysics and Simulation of Optoelectronic Devices V - San Jose, CA, USA
Duration: Feb 10 1997Feb 14 1997

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2994
ISSN (Print)0277-786X

Other

OtherPhysics and Simulation of Optoelectronic Devices V
CitySan Jose, CA, USA
Period2/10/972/14/97

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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    Kasunic, K. J., & Fallahi, M. (1997). Gain and index saturation in circular-grating distributed-feedback semiconductor lasers. In Proceedings of SPIE - The International Society for Optical Engineering (pp. 205-214). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2994). Society of Photo-Optical Instrumentation Engineers.