Open AccessTransverse mode transition and LG01-mode generation in an end-pumped Nd:YVO4 laser
Author(s) -
Yao Yao,
Kegui Xia Kegui Xia,
Minqiang Kang,
Zhiqiang Fang Zhiqiang Fang,
Jianlang Li Jianlang Li
Publication year - 2013
Publication title -
chinese optics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.617
H-Index - 37
ISSN - 1671-7694
DOI - 10.3788/col201311.121406
Subject(s) - optics , mode (computer interface) , laser , transverse mode , transverse plane , mode locking , materials science , physics , computer science , operating system , structural engineering , engineering
A laser-diode end-pumped Nd:YVO 4 crystal laser is demonstrated to emit the first-order Laguerre-Gaussian (LG01) mode with 502-mW laser power and 22% slope efficiency. The LG01-mode is lased only when the pumping area locates in the central part of the laser crystal's front surface, and thereafter the symmetrical LG01-HG01-TEM00 mode transition happens when laser crystal is moved laterally inside several-tens-micron area. The possible mechanism responsible for the phenomenon of symmetrical mode transition is also discussed. © 2013 Chinese Optics Letters.
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