Open AccessA method for measuring thermal focal length of LD-side-pumped laser crystal
Author(s) -
Ansong Geng,
Zhao Ci,
Bo Yang,
Yuanfu Lu,
Zuyan Xu
Publication year - 2008
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.57.6987
Subject(s) - optics , focal length , laser , materials science , cardinal point , crystal (programming language) , thermal , plane (geometry) , physics , computer science , lens (geology) , geometry , mathematics , meteorology , programming language
This paper reports a simple and accurate method for measuring thermal focal length of LD-side-pumped laser crystal. While applying the nonsymmetrical plane-plane-cavity to measure the thermal focal length, the distance from the end of the laser crystal to the end mirror need not be zero, and the reliability of this method is proved by experiments. Based on the obtained measurement results, folding configuration oscillators of yellow laser for intracavity sum frequency can be optimized, which ensures high space overlapping of two fundamental beams and high sum frequency efficiency.