Stripe-array diode-laser in an off-axis external cavity: Theory and experiment

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Title Stripe-array diode-laser in an off-axis external cavity: Theory and experiment
Author Jechow, Andreas; Lichtner, Mark; Menzel, Ralf; Radziunas, Mindaugas; Skoczowsky, Danilo; Vladimirov, Andrei G.
Journal Name Optics Express
Year Published 2009
Place of publication United States
Publisher Optical Society of America
Abstract Stripe-array diode lasers naturally operate in an anti-phase supermode. This produces a sharp double lobe far field at angles ±α depending on the period of the array. In this paper a 40 emitter gain guided stripe-array laterally coupled by off-axis filtered feedback is investigated experimentally and numerically. We predict theoretically and confirm experimentally that at doubled feedback angle 2α a stable higher order supermode exists with twice the number of emitters per array period. The theoretical model is based on time domain traveling wave equations for optical fields coupled to the carrier density equation taking into account diffusion of carriers. Feedback from the external reflector is modeled using Fresnel integration.
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1364/OE.17.019599
Volume 17
Issue Number 22
Page from 19599
Page to 19604
ISSN 1094-4087
Date Accessioned 2011-02-14
Date Available 2011-03-31T04:46:35Z
Language en_AU
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Lasers and Quantum Electronics
URI http://hdl.handle.net/10072/37874
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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