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Proceedings Paper

Sequential description of the catastrophic optical damage of high power laser diodes
Author(s): J. Souto; J. L. Pura; A. Torres; J. Jiménez; M. Bettiati; F. J. Laruelle
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Paper Abstract

Cathodoluminescence (CL) analysis of high power laser diodes permits to reveal the main defects issued from the catastrophic optical degradation (COD). These defects are revealed as discontinuous dark lines along the ridge. The different levels of damage are analysed, and a thermomechanical model taking account of the thermal and mechanical properties of the laser structure is settled up. In this model the COD is described as a local temperature enhancement, which generates thermal stresses leading to the generation of dislocations, which are responsible for the degradation of the thermal conductivity of the of the active zone of the laser.

Paper Details

Date Published: 4 March 2016
PDF: 6 pages
Proc. SPIE 9733, High-Power Diode Laser Technology and Applications XIV, 973306 (4 March 2016); doi: 10.1117/12.2212953
Show Author Affiliations
J. Souto, Univ. de Valladolid (Spain)
J. L. Pura, Univ. de Valladolid (Spain)
A. Torres, Univ. de Valladolid (Spain)
J. Jiménez, Univ. de Valladolid (Spain)
M. Bettiati, 3SP Technologies S.A.S. (France)
F. J. Laruelle, 3SP Technologies S.A.S. (France)

Published in SPIE Proceedings Vol. 9733:
High-Power Diode Laser Technology and Applications XIV
Mark S. Zediker, Editor(s)

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