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Laser properties of continuous-grown Nd:GdVO_4/GdVO_4 and Nd:YVO_4/YVO_4 composite crystals under direct pumping
Author(s) -
Xudong Li,
Yu Xin,
Fei Chen,
Renpeng Yan,
Junhua Yu,
Deying Chen
Publication year - 2009
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.17.012869
Subject(s) - materials science , slope efficiency , laser , optics , neodymium , fiber laser , physics
We present the laser properties of continuous-grown Nd:GdVO(4)/GdVO(4) and Nd:YVO(4)/YVO(4) composite crystals under LD direct pumping . The maximum CW output powers of 20W with a slope efficiency of 74.9% to absorbed pump power and 32W with 82.7% were obtained in Nd:GdVO(4)/GdVO(4) and Nd:YVO(4)/YVO(4) lasers, respectively. To our knowledge, this is the highest slope efficiency obtained in Nd(3+) lasers. Furthermore, at the repetition rate of 100 kHz, the minimum pulse width of 15.0 ns and 12.9 ns, the peak power of 11.8 kW and 22.4 kW were obtained for Nd:GdVO(4)/GdVO(4) and Nd:YVO(4)/YVO(4) lasers, respectively.

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