Passive Q-Switched Operation of a Tm:YAP Laser with the MoSe2 Saturable Absorber

• DOI: 10.1007/s10946-020-09889-3
• Publication Date: 2020-07-23T10:04:05Z
• Authors: Wenchao Cui; Linjun Li; Long Zhou; Shuangcheng Li; Tianqi Qi; Yuqiang Yang; Wenlong Yang; Zhengyang Wu; Xining Yang; Yingjie Shen
• Keywords: 0103 physical sciences; 01 natural sciences; 7. Clean energy

The passively Q-switched (PQS) operation of a Tm:YAP laser was experimentally demonstrated with an MoSe2 saturable absorber (SA). In the PQS mode, an average output power of 1.084/1.744 W with a pulse width of 686.0/1222 ns at 196.5/177.7 kHz was acquired from Tm:YAP laser under an output couple (OC) with transmittances T of 2%/5%, corresponding to an optical–optical conversion efficiency and an output wavelength of 7.2%/12.7% at 1989.2/1986.6 nm. In addition, the beam quality factors of the PQS Tm:YAP laser in the X and Y directions were less than 1.15.