Open AccessLaser diode double-end-direct-pumped slab laser with hybrid resonator
Author(s) -
Mao Ye-Fei,
Hengli Zhang,
Liang Xu,
Bo Deng,
Sihan Sang,
HE Jing-liang,
Jichuan Xing,
Jianguo Xin,
Jiang Yi
Publication year - 2015
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.64.014203
Subject(s) - materials science , laser , optics , resonator , laser beam quality , laser power scaling , energy conversion efficiency , slope efficiency , laser diode , optical cavity , diode , optoelectronics , output coupler , laser beams , fiber laser , physics
To reduce the influence of thermal lensing and attain the high power laser with high beam quality, a laser diode stack dual-end-direct-pumped Nd:YVO4 slab laser with negative branch confocal folded hybrid cavity has been developed. Its maximum output power is 416 W, optical conversion efficiency is 54.3%, and slope efficiency is 61.6%. When the output laser power is 370 W, M2 values in the unstable resonator direction and stable resonator direction are 3.9 and 4.7, respectively.