Open AccessHeat-induced undulation in the distribution of diode-pumped solid-state laser
Author(s) -
Shiyu Wang,
Zhen Guo,
Junhui Fu,
Defang Cai,
Jianxiang Wen,
Xue Hai-zhong,
Tang Ying-De
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.355
Subject(s) - heat sink , laser , materials science , dissipation , diode , thermal management of electronic devices and systems , optics , thermal , laser beams , laser power scaling , laser pumping , solid state laser , mechanics , optoelectronics , thermodynamics , physics , mechanical engineering , engineering
A theoretical model has been adopted to analysis the unsteady thermal effects in a laser medium. It is based on the fact that the internal dissipation power is always unequal to the heat removed from the surface. According to this, the case in a laser diode pumped solid-state laser has been studied. The result obtained shows that the fluctuations in the laser beam strongly depend on those of the temperature in the heat sink. It was also shown that the dissymmetric temperature distribution of the heat sink distorts the shape of the laser beam. A set of experiments has been carefully designed to proved these conclusions.