Thermal unbalance by an amplified spontaneous emission absorber in an Nd:YAG thin-disk laser.
We investigate heat generation in a Nd:YAG thin-disk laser composite with an undoped anti-amplified spontaneous emission (ASE) cap and a side ASE absorber under lasing and nonlasing conditions. The heat load unbalance in three different regions induces a large transverse temperature inhomogeneity under the nonlasing condition. The additional heat fraction generated by the concentration quenching is observed.
Institute of Applied Physics and Computational Mathematics, P.O. Box 8009-11, Beijing 100088, China. wang_xiaojun@iapcm.ac.cn
Xiao-Jun
XJ
Wang
Zhen
Z
Cai
Jian-Feng
JF
Jiang
Chun
C
Tang
Bo
B
Tu
Quan-Wei
QW
Jin