Open AccessEfficient continuous-wave diode-pumped Er^3+:Yb^3+:LaMgB_5O_10 laser with sapphire cooling at 157 μm
Author(s) -
Yujin Chen,
Qibin Hou,
YaoZeng Huang,
Yanfu Lin,
Jianhua Huang,
Xinghong Gong,
Zhixun Luo,
Zhoubin Lin,
Yinbo Huang
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.019320
Subject(s) - materials science , slope efficiency , laser , optics , sapphire , continuous wave , diode , crystal (programming language) , ti:sapphire laser , optoelectronics , laser pumping , laser diode , laser power scaling , diode pumped solid state laser , fiber laser , physics , computer science , programming language
Efficient 1.57 μm continuous-wave laser was demonstrated in an X-cut, 2.0 mm-thick Er 3+ :Yb 3+ :LaMgB 5 O 10 crystal with sapphire cooling end-pumped by a 976 nm laser diode. In a plano-concave cavity, a laser with a maximum output power of 0.61 W and a slope efficiency of 23% was realized at an absorbed pump power of 4.0 W. A continuous-wave 1566 nm micro-laser with a maximum output power of 0.47 W and a slope efficiency of 16% was also obtained. The lasers were totally linear polarization parallel to the crystalline Z axis. The results show that the Er 3+ :Yb 3+ :LaMgB 5 O 10 crystal with high thermal conductivity may be a good gain medium for laser around 1.55 μm.