MICHAUD, J; BÉCHOU, L; VEYRIÉ, D; LARUELLE, F; DILHAIRE, S; GRAUBY, S

doi:10.1109/LPT.2015.2504394

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MICHAUD, J
Laboratoire Ondes et Matière d'Aquitaine [LOMA]

BÉCHOU, L
Laboratoire de l'intégration, du matériau au système [IMS]

VEYRIÉ, D
Centre National d’Études Spatiales [Paris] [CNES]

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IEEE Photonics Technology Letters. 2016-03-15, vol. 28, n° 6, p. 665-668

Institute of Electrical and Electronics Engineers

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Since 980-nm GaAs-based laser diodes are now implemented in space missions, there is a huge need to study their thermal behavior under vacuum in order to evaluate their reliability. Then spatially resolved temperature variations have been evaluated by thermoreflectance on the front facet under atmospheric and vacuum conditions, and for two different unpumped windows lengths. We show that, in all cases, vacuum induces a front facet temperature variation increase of the laser diodes, making them more sensitive to a catastrophic optical damage.< Leer menos

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Vacuum environment

facet temperature variation

laser diode

unpumped window

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Thermal Behavior of High Power GaAs-Based Laser Diodes in Vacuum Environment

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