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DOI 10.1063/1.108728
Title Unidirectional operation in a semiconductor ring diode laser
Creator/Author Hohimer, J.P. ; Vawter, G.A. ; Craft, D.C. (Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States))
Publication Date1993 Mar 15
OSTI IdentifierOSTI ID: 6792146
DOE Contract NumberAC04-76DP00789
Other Number(s)Journal ID: ISSN 0003-6951; CODEN: APPLAB
Resource TypeJournal Article
Resource RelationJournal: Applied Physics Letters; (United States); Journal Volume: 62:11
Subject42 ENGINEERING; SEMICONDUCTOR LASERS; DESIGN; PERFORMANCE; RING LASERS; WAVEGUIDES; LASERS; SEMICONDUCTOR DEVICES; SOLID STATE LASERS
Description/Abstract We report the first demonstration of a unidirectional ring diode laser based on the use of an active crossover waveguide. The crossover waveguide introduces both a nonreciprocal loss and gain into the ring cavity to promote unidirectional lasing in the clockwise ring direction. Up to 95% of the continuous-wave lasing output of 3.5 mW (at 150 mA ring current) is emitted from this preferred lasing direction. Unidirectional operation of the ring diode laser is also shown to increase the linearity of the light-vs-current curves, eliminating kinks otherwise occurring from gain competition in the ring cavity.
Country of PublicationUnited States
LanguageEnglish
FormatSize: Pages: 1185-1187
System Entry Date2008 Aug 14

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