Efficient operation of a diode-pumped Yb:NaY(WO_4)_2 laser | Zendy

Guoqiang Xie | Zendy; D. Y. Tang | Zendy; H. J. Zhang | Zendy; Junqiao Wang | Zendy; Liejia Qian | Zendy

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Efficient operation of a diode-pumped Yb:NaY(WO_4)_2 laser

Author(s) -

Guoqiang Xie,

D. Y. Tang,

H. J. Zhang,

Junqiao Wang,

Liejia Qian

Publication year - 2008

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.16.001686

Subject(s) - materials science , slope efficiency , laser , optics , diode , crystal (programming language) , laser diode , optoelectronics , ytterbium , fiber laser , physics , computer science , programming language

An efficient diode-pumped Yb:NaY(WO(4))(2) (Yb:NYW) disordered crystal laser has been experimentally demonstrated for the fist time. The Yb:NYW crystal has a peak absorption cross section of 1.09 x 10(-20) cm(2) at 972 nm and emission cross section of 1.24 x 10(-20) cm(2) at 1010 nm. Under an absorbed pump power of 11.7 W, the Yb:NYW laser generated an average output power as high as 4.1 W, with a slope efficiency of 45%. It was found that the laser always operated in a self-pulsing mode, and the laser spectrum showed random jumps with time. The mechanism of self-pulsing in the laser was also investigated.

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