Diode-pumped quasi-three-level CW Nd:CLNGG and Nd:CNGG lasers.
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%.
He
Kunna
K
Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100190, China.
Wei
Zhiyi
Z
Li
Dehua
D
Zhang
Zhiguo
Z
Zhang
Huaijin
H
Wang
Jiyang
J
Gao
Chunqing
C