Diode-pumped quasi-three-level CW Nd:CLNGG and Nd:CNGG lasers | Zendy

Kunna He | Zendy; Zhiyi Wei | Zendy; Dehua Li | Zendy; Zhiguo Zhang | Zendy; Huaijin Zhang | Zendy; Jing Wang | Zendy; Chunqing Gao | Zendy

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Diode-pumped quasi-three-level CW Nd:CLNGG and Nd:CNGG lasers

Author(s) -

Kunna He,

Zhiyi Wei,

Dehua Li,

Zhiguo Zhang,

Huaijin Zhang,

Jing Wang,

Chunqing Gao

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.17.019292

Subject(s) - slope efficiency , optics , energy conversion efficiency , laser , materials science , lasing threshold , wavelength , optoelectronics , fiber laser , physics

We have demonstrated what is to our knowledge the first quasi-three-level CW Nd:CLNGG laser with simple linear resonator. When the pump power was 18.2 W, a maximum output power of 1.63 W was obtained at the dual-wavelength of 935 nm and 928 nm. The optical-to-optical conversion efficiency was 9.0% and the slope efficiency was 11.5%. Lasing characteristics of a quasi-three-level CW Nd:CNGG laser were also investigated. A maximum output power of 1.87 W was obtained at the single-wavelength of 935 nm with 15.2 W pump power, corresponding to an optical-to-optical conversion efficiency of 12.3% and a slope efficiency of 15.6%.

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