Passively Q‐switched operation of a Tm:YAP laser with two WS2‐based saturable absorbers. Issue 5 (7th December 2022)

• Record Type: Journal Article
• Authors: Zhang, Xiaolin; Yu, Xiaoyang; Qi, Tianqi; Yang, Wenlong; Yu, Shuang; Yang, Yuqiang
• Other Names: Ma Yufei guestEditor.; Kan Ruifeng guestEditor.; Mei Liang guestEditor.; Ma Weiguang guestEditor.
• Is Part Of: Microwave and optical technology letters. Volume 65:Issue 5(2023)
• Page Start: 1393
• Page End: 1397
• Publication Date: 2022-12-07
• Subjects: double WS2‐based SA -- PQS -- pulse train; Microwaves -- Periodicals; Optics -- Periodicals; 621
• DOI: 10.1002/mop.33567
• Languages: English
• ISSNs: 0895-2477

Abstract

Abstract: In this paper, a doubly passively Q‐switched (PQS) Tm:YAP laser was experimentally realized by using two WS2 ‐based saturable absorbers (SAs) for the first time. Under the doubly PQS operation, the pulse width of 0.93 µs at 1989.3 nm was obtained with an average output power (AOP) of 391 mW and peak power of 4.04 W. While for PQS Tm:YAP laser with single WS2 ‐based SA, a pulse width of 1.63 µs and an AOP of 676 mW was achieved with a peak power of 3.4 W. The experiment results indicate a conclusion that the doubly PQS technology is an efficient method to further compress the pulse width, enhance the stability of the pulses train, and improve the AOP for the Tm:YAP laser.