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Título: Mechanisms driving the catastrophic optical damage in high power laser diodes
Autor: Souto, Jorge
Pura, José Luis
Rodríguez, M.
Anaya, Julián
Torres, A.
Jiménez López, Juan Ignacio
Año del Documento: 2015
Editorial: Society of Photo-optical Instrumentation Engineers (SPIE)
Descripción: Producción Científica
Documento Fuente: SPIE Proceedings, 2015, Vol. 9348, P. 9348O-1-7 Mark S. Zediker, Editor(s)
Resumen: The catastrophic optical damage (COD) of laser diodes consists of the sudden drop off of the optical power. COD is generally associated with a thermal runaway mechanism in which the active zone of the laser is molten in a positive feedback process. The full sequence of the degradation follows different phases: in the first phase, a weak zone of the laser is incubated and the temperature is locally increased there; when a critical temperature is reached the thermal runaway process takes place. Usually, the positive feedback leading to COD is circumscribed to the sequential enhancement of the optical absorption in a process driven by the increase of the temperature. However, the meaning of the critical temperature has not been unambiguously established. Herein, we will discuss about the critical temperature, and the physical mechanisms involved in this process. The influence of the progressive deterioration of the thermal conductivity of the laser structure as a result of the degradation during the laser operation will be addressed.
Materias (normalizadas): Laser diodes,
ISSN: 0277-786X
Revisión por Pares: SI
DOI: 10.1117/12.2079464
Patrocinador: Junta de Castilla y León (programa de apoyo a proyectos de investigación – Ref. VA302U13)
Version del Editor: http://spie.org/publications/conference-proceedings?WT.svl=mddp2
Idioma: eng
URI: http://uvadoc.uva.es/handle/10324/21786
Derechos: info:eu-repo/semantics/openAccess
Aparece en las colecciones:DEP32 - Artículos de revista

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