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Title: Materials issues for the catastrophic degradation of high power laser diodes
Authors: Souto, Jorge
Pura, José Luis
Jiménez López, Juan
Conference: IEEE High Power Diode Lasers and Systems Conference (HPD), 2017
Issue Date: 2017
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Description: Producción Científica
Citation: High Power Diode Lasers and Systems Conference (HPD), 2017 IEEE. Institute of Electrical and Electronics Engineers (IEEE), 2017, p. 57-58.
Abstract: n this work we investigate the catastrophic optical damage (COD) of GaAS based quantum well (QW) laser diodes under the optics of the role played by the physical properties of the materials forming the active parts of the lasers in the degradation process, taking account of their nanoscale dimensionality. High power laser diodes under operation can experience local heating phenomena that lead to device failure. A thermo-mechanical model has been set up to study the mechanism of degradation. The incidence of the local heating in the degradation is tightly related to the physical properties of the active region of the laser. In particular, the thermal conductivity, the optical absorption, the thermal expansion coefficients, and the mechanical strength, play a crucial role in the degradation process. Furthermore, the low dimensionality of the layers has a strong influence on those properties.
Classification: high-power laser diodes
thermal conductivity
ISBN: 978-1-5386-3263-5
Sponsor: Ministerio de Economía, Industria y Competitividad (ENE2014-56069-C4-4-R)
Junta de Castilla y León (programa de apoyo a proyectos de investigación - Ref. VA293U13 and VA081UI6)
Publisher Version:
Rights Owner: © 2017 IEEE
Language: eng
Rights: info:eu-repo/semantics/openAccess
Appears in Collections:DEP32 - Comunicaciones a congresos, conferencias, etc.

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