Circular-grating surface-emitting distributed Bragg reflector lasers on an InGaAs-GaAs structure for 0.48-μm applications

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DOIResolve DOI: http://doi.org/10.1109/2944.401219
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TypeArticle
Journal titleIEEE journal of selected topics in quantum electronics
Volume1
Issue2
Pages382386; # of pages: 5
AbstractIn this paper, we report on the design and fabrication of electrically-pumped circular-grating surface-emitting DBR lasers for operation in the 0.98-μm wavelength range. The layer structure with InGaAs-GaAs-AlGaAs strained multiquantum-wells was obtained by one-step epitaxial growth. Circular gratings are defined by electron-beam lithography around circular gain sections of different diameters. Low threshold CW operation as low as 26 mA for a 60-μm diameter gain section, and high-power pulsed operation of over 120 mW for a 100-μm diameter gain region are demonstrated. A quasi-circular far-field pattern with a divergence of about 1° is obtained
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Administrative Services and Property Management; NRC Institute for Microstructural Sciences
Peer reviewedYes
NPARC number12338866
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Record identifierdc0f3388-70e7-4ebc-a7f9-bc0a8121bda9
Record created2009-09-11
Record modified2016-05-09
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