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Proceedings Paper

Spatial "rocking" for improving the spatial quality of the beam of broad area semiconductor lasers
Author(s): Mindaugas Radziunas; Kestutis Staliunas
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Paper Abstract

The spatial "rocking" is a dynamical effect converting a phase-invariant oscillatory system into a phase-bistable one, where the averaged phase of the system locks to one of two values differing by π. In this paper we consider theoretically the spatial rocking of irregularly operating edge emitting broad area semiconductor laser. The stabilization of the laser is realized by the injection of an optical field formed by two, coherently interfering at some angle, beams. We demonstrate that this stabilization is preserved if one or both injected beams are weakly focused, and analyze a corresponding focusing of the emitted field.

Paper Details

Date Published: 15 May 2012
PDF: 9 pages
Proc. SPIE 8432, Semiconductor Lasers and Laser Dynamics V, 84320Q (15 May 2012); doi: 10.1117/12.921544
Show Author Affiliations
Mindaugas Radziunas, Weierstrass Institute (Germany)
Kestutis Staliunas, Univ. Politècnica de Catalunya (Spain)
Institucio Catalana de Reserca i Estudis Avancats (Spain)


Published in SPIE Proceedings Vol. 8432:
Semiconductor Lasers and Laser Dynamics V
Krassimir Panajotov; Marc Sciamanna; Angel Valle; Rainer Michalzik, Editor(s)

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