Zirconium telluride saturable absorber for Er:YAP dual-wavelength ultrafast laser at 3 μm. (November 2022)

• Record Type: Journal Article
• Authors: Cai, Enlin; Xu, Jianyi; Xia, Yuanying; Hao, Linhong; Zhang, Qingyue; Zhang, Shuaiyi; Sun, Dunlu; Teng, Lihua; Lou, Fei; Wang, Maorong; Lv, Hao; Wang, Xia; Li, Tao; Wang, Aifeng; Tian, Ying
• Is Part Of: Optics & laser technology. Volume 155(2022)
• Publication Date: 2022-11
• Subjects: Mid-infrared laser -- Passively mode-locked -- 2D materials; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2022.108451
• Languages: English
• ISSNs: 0030-3992

Abstract

Highlights: For the first time, 2D materials have been used in 3 μm solid-state passively mode-locked lasers. The laser modulation performance of Er:YAP dual-wavelength crystal was studied. An extremely stable 3 μm passively Q-switched pulse trains with repetition frequency of 466 kHz were realized. Abstract: A layered Zirconium telluride (ZrTe5 ) saturable absorber (SA) being employed as the laser modulator at around 3 μm is report. In the passively Q-switched (PQS) experiment, the shortest pulse duration obtained was 169 ns and the corresponding repetition frequency was 446 kHz. Additionally, a passively Q-switched mode-locked (QML) Er:YAP laser emitting at 2.71 μm and 2.73 μm dual-wavelength was demonstrated, using an X-type resonator cavity. The repetition frequency of the mode-locked pulses was 180 MHz, and the pulse duration was calculated to be 800 ps. A SA based on a two-dimensional (2D) material has ever been used to achieve mode-locked laser pulse operation in a solid-state 3 μm laser.