Abstract

We report on two-dimensional (2D) hexagonal boron nitride (hBN) as saturable absorber (SA) material in a passively $Q$-switched erbium-doped fiber laser (EDFL) operating at 1.5 µm. The 2D hBN film as an SA is fabricated and transferred onto the optical fiber tip by natural deposition technology. In the $Q$-switched operation, we obtain stable $Q$-switched laser operation with a maximum average 10% output power of 2.25 mW, corresponding to a repetition frequency of 55.5 kHz, shortest pulse width of 6.77 µs, and single pulse energy of 40.49 nJ. The achieved PQS at 1.5 µm EDFL with 2D hBN as an SA may have potential applications in many novel 2D materials and all-fiber lasers.

© 2020 Optical Society of America

Tellurium as the saturable absorber for the passively Q-switched laser at 1.34 µm

Qi Yang, Xiaoyan Zhang, Zixin Yang, Xianghe Ren, Hunkun Nie, Bingzheng Yan, Kejian Yang, Baitao Zhang, Jingliang He, and Jun Wang
Appl. Opt. 59(9) 2892-2896 (2020)

Passively Q-switched and femtosecond mode-locked erbium-doped fiber laser based on a 2D palladium disulfide (PdS₂) saturable absorber

Ping Kwong Cheng, Chun Yin Tang, Xin Yu Wang, Long-Hui Zeng, and Yuen Hong Tsang
Photon. Res. 8(4) 511-518 (2020)

Passively Q-switched erbium-doped fiber laser utilizing tungsten oxide as a saturable absorber

A. Nady, M. Salhi, and S. W. Harun
Appl. Opt. 58(36) 9768-9772 (2019)

Passively Q-switched and mode-locked erbium-doped fiber lasers based on tellurene nanosheets as saturable absorber

Wenfei Zhang, Guomei Wang, Fei Xing, Zhongsheng Man, Fang Zhang, Kezhen Han, Huanian Zhang, and Shenggui Fu
Opt. Express 28(10) 14729-14739 (2020)

2.8 µm passively Q-switched Er:ZBLAN fiber laser with an Sb saturable absorber mirror

Jintao Wang, Jincheng Wei, Wenjun Liu, Peiguang Yan, Chunyu Guo, Chuanxiang Ye, Linzhong Xia, and Shuangchen Ruan
Appl. Opt. 59(29) 9165-9168 (2020)