Dual-comb self-mode-locked monolithic Yb:KGW laser with orthogonal polarizations
Author(s) -
M. T. Chang,
H. C. Liang,
K. W. Su,
Y. F. Chen
Publication year - 2015
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.23.010111
Subject(s) - optics , materials science , lasing threshold , laser , fiber laser , mode locking , polarization (electrochemistry) , pulse duration , slope efficiency , optoelectronics , physics , chemistry
The dependence of lasing threshold on the output transmission is numerically analyzed to find the condition for the gain-to-loss balance for the orthogonal Np and Nm polarizations with a Ng-cut Yb:KGW laser crystal. With the numerical analysis, an orthogonally polarized dual-comb self-mode-locked operation is experimentally achieved with a coated Yb:KGW crystal to form a monolithic cavity. At a pump power of 5.2 W, the average output power, the pulse repetition rate, and the pulse duration are measured to be 0.24 (0.6) W, 25.8 (25.3) GHz, and 1.06 (1.12) ps for the output along the Np (Nm) polarization.
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