title: High-power dual-wavelength laser with disordered Nd:CNGG crystals.
abstract: We demonstrate the high-power dual-wavelength laser output with disordered Nd:CNGG laser crystals. Continuous-wave output power of 4.03 W was obtained under the incident pump power of 15.62 W. In the passively Q-switched operation, the shortest pulse width, largest pulse energy, and highest peak power were achieved to be 12.9 ns, 173.16 microJ, and 12.3 kW, respectively, with Cr(4+):YAG crystals as the saturable absorbers. By spectral analysis, the output lasers were found to have dual wavelengths. We believed that the passively Q-switched dual-wavelength laser should be possible to be used as a source for the generation of terahertz radiation.
authors.affiliation: State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan, China.
authors.forename: Haohai
authors.initials: H
authors.lastname: Yu
authors.forename: Huaijin
authors.initials: H
authors.lastname: Zhang
authors.forename: Zhengping
authors.initials: Z
authors.lastname: Wang
authors.forename: Jiyang
authors.initials: J
authors.lastname: Wang
authors.forename: Yonggui
authors.initials: Y
authors.lastname: Yu
authors.forename: Zibin
authors.initials: Z
authors.lastname: Shi
authors.forename: Xingyu
authors.initials: X
authors.lastname: Zhang
authors.forename: Minhua
authors.initials: M
authors.lastname: Jiang