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Photonic microstructures as laser mirrors

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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Abstract

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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1117/1.601948 DOIUNSPECIFIED
http://spiedigitallibrary.org/oe/resource/1/opegar/v37/i4/p1143_s1PublisherUNSPECIFIED
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.
Funders:
Funding AgencyGrant Number
Royal SocietyUNSPECIFIED
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Army Research Office (ARO)DAAH04-96-1-0389
NSFECS-9632937
Subject Keywords:photonic microstructures; semiconductor lasers; Bragg mirrors; photonic bandgap; low threshold
Record Number:CaltechAUTHORS:20111222-085153245
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20111222-085153245
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.
ID Code:28561
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:22 Dec 2011 23:31
Last Modified:26 Dec 2012 14:38

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