Thermal Behavior of High Power GaAs-Based Laser Diodes in Vacuum Environment
Language
en
Article de revue
This item was published in
IEEE Photonics Technology Letters. 2016-03-15, vol. 28, n° 6, p. 665-668
Institute of Electrical and Electronics Engineers
English Abstract
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 ...Read more >
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.Read less <
English Keywords
Vacuum environment
facet temperature variation
laser diode
unpumped window
Origin
Hal imported