Krauss, Thomas F. and Painter, Oskar and Scherer, Axel and Roberts, John S. and De La Rue, Richard M. (1998) Photonic microstructures as laser mirrors. Optical Engineering, 37 (4). pp. 1143-1148. ISSN 0091-3286 . http://resolver.caltech.edu/CaltechAUTHORS:20111222-085153245
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Deeply etched 1-D third-order Bragg reflectors have been used as mirrors for broad-area semiconductor lasers operating at 975-nm wavelength. From a threshold and efficiency analysis, we determine the mirror reflectivity to be approximately 95%. The design of the GaAs-based laser structure features three InGaAs quantum wells placed close (0.5 μm) to the surface in order to reduce the required etch depth and facilitate high-quality etching. Despite the shallow design and the proximity of the guided mode to the metal contact, the threshold current density (J_(th) = 220 A/cm^2 for infinite cavity length) and internal loss (α_i = 9±1 cm^(−1)) are very low.
|Additional Information:||© 1998 Society of Photo-Optical Instrumentation Engineers. Paper INT-04 received Aug. 19, 1997; revised manuscript received Oct. 21, 1997; accepted for publication Oct. 27, 1997. T.F.K. gratefully acknowledges support by the Royal Society of the UK. The work was funded through DARPA, the Army Research Office under contract DAAH04-96-1-0389, and the NSF under contract ECS-9632937.|
|Subject Keywords:||photonic microstructures; semiconductor lasers; Bragg mirrors; photonic bandgap; low threshold|
|Official Citation:||Thomas F. Krauss, Oskar Painter, Axel Scherer, John S. Roberts and Richard M. De La Rue, "Photonic microstructures as laser mirrors", Opt. Eng. 37, 1143 (1998); doi:10.1117/1.601948|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||22 Dec 2011 23:31|
|Last Modified:||26 Dec 2012 14:38|
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