Open AccessThermo-elastic stress in high-power laser bars
Author(s) -
V V Bezotosnyĭ,
V. P. Gordeev,
V A Oleshchenko
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1439/1/012029
Subject(s) - materials science , laser , bar (unit) , soldering , stress (linguistics) , thermal , diode , optics , power (physics) , structural engineering , composite material , optoelectronics , physics , engineering , thermodynamics , linguistics , philosophy , meteorology
This article presents the results of three-dimensional modeling of thermo-elastic stresses arising during the operation of a powerful laser diode bars mounted on a CuW thermal compensator using AuSn soldering alloy in a wide range of thermal loads up to extreme values. Calculated distributions of thermo-elastic stresses at the output and highly reflective mirror of the laser bar is compared. An interpretation of the results obtained, in particular, higher values of thermo-elastic stresses on a less hot highly reflective mirror, in comparison with a hotter output mirror, is proposed.