Analysis and design of combined distributed-feedback/Fabry-Perot structures for surface-emitting semiconductor lasers

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DOIResolve DOI: http://doi.org/10.1109/3.485392
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TypeArticle
Journal titleIEEE journal of quantum electronics
ISSN00189197
Volume32
Issue3
Pages417423; # of pages: 7
Subjectcoupled-wave equations; DBR mirrors; design considerations; DFB structure; distributed Bragg reflector lasers; distributed feedback lasers; distributed-feedback/Fabry-Perot structures; enhanced resonance; Fabry-Perot resonators; field distributions; fill factor; FP resonant cavity; gain coupling; gain distributions; index coupling effect; laser cavity resonators; laser feedback; laser mirrors; periodic-gain structures; phase layers; reduced threshold; refractive index; refractive-index difference; semiconductor lasers; surface emitting lasers; surface-emitting lasers; surface-emitting semiconductor lasers; threshold characteristics
AbstractWe propose combined distributed-feedback/Fabry-Perot (DFB/FP) structures for surface-emitting semiconductor lasers. The analysis is based on coupled-wave equations modified for surface-emitting lasers. The proposed structures, which exhibit enhanced resonance due to a matching between the gain and field distributions resulting in a reduced threshold compared with simple FP structures, are formed by placing the DFB structure between two DBR mirrors of an FP resonant cavity and introducing phase layers between the DFB region and the mirrors. It was found that the periodic-gain structures are a special case of the combined DFB/FP structures in which the index coupling effect is assumed to be negligible due to a small fill factor or a small refractive-index difference. The effect of complex (gain and index) coupling on the design and the threshold characteristics of the structures is clearly illustrated. Some important design considerations that were neglected in the previous papers are addressed
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Microstructural Sciences
Peer reviewedNo
Identifier10292731
NPARC number12338996
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Record identifieraf8dc882-7132-4406-bf58-b4cb845d3ce0
Record created2009-09-11
Record modified2016-05-09
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