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Proceedings Paper

Near-field and far-field dynamics of (Al,In)GaN laser diodes
Author(s): Ulrich T. Schwarz; Markus Pindl
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Paper Abstract

For blue (Al,In)GaN laser diodes we measure the evolution of the laser beam during its propagation from near-field to far-field. We reconstruct the near-field phase distribution of the waveguide mode. The dynamic behaviour is a tilting of the phase front and a far-field beam-steering on a 10 ns to 100 ns time scale. These observations are discussed in the context of the carrier induced change of the refractive index associated with the antiguiding factor and of thermal dynamics.

Paper Details

Date Published: 1 April 2005
PDF: 9 pages
Proc. SPIE 5738, Novel In-Plane Semiconductor Lasers IV, (1 April 2005); doi: 10.1117/12.591044
Show Author Affiliations
Ulrich T. Schwarz, Univ. Regensburg (Germany)
Markus Pindl, Univ. Regensburg (Germany)

Published in SPIE Proceedings Vol. 5738:
Novel In-Plane Semiconductor Lasers IV
Carmen Mermelstein; David P. Bour, Editor(s)

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