Passively Q-switched mode-locked Tm,Ho:CaYAlO4 laser at 2089 nm

Zhen Yuan; Wei-Jun Ling; Rui Sun; Ming-Xia Zhang; Ke Li; Yin-Yan Zuo; Zhong Dong

doi:10.1117/12.2586736

2 December 2020 Passively Q-switched mode-locked Tm,Ho:CaYAlO4 laser at 2089 nm

Zhen Yuan, Wei-Jun Ling, Rui Sun, Ming-Xia Zhang, Ke Li, Yin-Yan Zuo, Zhong Dong

Proceedings Volume 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics; 117171G (2020) https://doi.org/10.1117/12.2586736
Event: 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 2020, Shanghai, China

Abstract

Employing MoS2 as a saturable absorber, We firstly demonstrated a passively Q-switched mode-locked (QML) Tm,Ho:CaYAlO4 laser. A tunable wavelength Ti:sapphire laser is used as the pumping source, and the continuous operation threshold of the Tm,Ho:CaYAlO4 laser is as low as 191 mw. When the absorption pumping power reached 1210 mW, the Tm,Ho:CaYAlO4 laser will entered a stable Q-switched mode-locked operation state, further increasing the pump power to 2.6w, the maximum output power of the laser is 216 mW, which corresponds a slope efficiency of 9.32% at the central wavelength of 2089 nm. In this case, the modulation depth is close to 100%. the experiments show the potential application of MoS2 in mode-locked operation at 2 micron band.

Citation Download Citation

Zhen Yuan, Wei-Jun Ling, Rui Sun, Ming-Xia Zhang, Ke Li, Yin-Yan Zuo, and Zhong Dong "Passively Q-switched mode-locked Tm,Ho:CaYAlO4 laser at 2089 nm", Proc. SPIE 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 117171G (2 December 2020); https://doi.org/10.1117/12.2586736

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