120-W continuous-wave diode-end-pumped Nd:GdVO_4 laser with high brightness operating at 912-nm | Zendy

Jing Gao | Zendy; Xin Yu | Zendy; Fei Chen | Zendy; Xudong Li | Zendy; Renpeng Yan | Zendy; Kun Zhang | Zendy; Junhua Yu | Zendy; Yuezhu Wang | Zendy

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120-W continuous-wave diode-end-pumped Nd:GdVO_4 laser with high brightness operating at 912-nm

Author(s) -

Jing Gao,

Xin Yu,

Fei Chen,

Xudong Li,

Renpeng Yan,

Kun Zhang,

Junhua Yu,

Yuezhu Wang

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.17.003574

Subject(s) - materials science , optics , laser , slope efficiency , diode , continuous wave , brightness , laser diode , crystal (programming language) , optoelectronics , doping , optical pumping , blue laser , fiber laser , physics , computer science , programming language

We present a diode-pumped high-power continuous-wave (cw) laser at 912 nm based on the quasi-three-level (4)F(3/2)-->(4)4I(9/2) transition in Nd:GdVO(4) crystal. By using a 5-mm-long conventional bulk crystal with 0.2at.% Nd(3+)-doped concentration, the maximum output power of 12.0 W is obtained, with a slope efficiency of 29.3%. To the best of our knowledge, this is the highest output at 912 nm generated by diode-pumped Nd:GdVO(4) lasers. Furthermore, 3.2 W 456 nm deep-blue light is acquired by frequency doubling, resulting in an optical-to-optical efficiency of 8.0%. The short-term power instability of the blue laser is less than 3%.

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