Spectral and lasing investigations of Yb:YSGG crystal | Zendy

Shuxian Wang | Zendy; Kui Wu | Zendy; Yicheng Wang | Zendy; Haohai Yu | Zendy; Huaijin Zhang | Zendy; Xueping Tian | Zendy; Qibiao Dai | Zendy; Junhai Liu | Zendy

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Spectral and lasing investigations of Yb:YSGG crystal

Author(s) -

Shuxian Wang,

Kui Wu,

Yicheng Wang,

Haohai Yu,

Huaijin Zhang,

Xueping Tian,

Qibiao Dai,

Junhai Liu

Publication year - 2013

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.21.016305

Subject(s) - lasing threshold , optics , materials science , laser , slope efficiency , wavelength , optoelectronics , crystal (programming language) , absorption (acoustics) , ultrashort pulse , fiber laser , physics , computer science , programming language

We report on a systematic study of the absorption and emission spectral properties of (Yb(0.1)Y(0.9))(3)(Sc(1.5)Ga(0.5))Ga(3)O(12) (Yb:YSGG) crystals. The broad fluorescence spectral lines indicate great potential of Yb:YSGG for tunable and ultrafast laser applications. Efficient continuous-wave (cw) laser oscillation was also demonstrated at room temperature (RT), generating an output power of 6.11 W with an optical-to-optical efficiency of 64.2%, and a slope efficiency of 80.1% with respect to absorbed pump power. The laser emission spectrum shifts to shorter wavelengths as the transmission of the output coupler varies from 3% to 20%, a result that can be explained based on the effective gain cross-sections of Yb:YSGG.

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