Abstract

We demonstrated a passively $Q$-switched visible Pr:YLF laser using the gold nanostars (GNSs) as the saturable absorber (SA). The nonlinear saturable absorption properties at 639 nm were measured, and the modulation and saturable fluence were calculated to be 3% and $0.3\mathrm{GW}/{\mathrm{cm}}^2$, respectively. With the GNSs SA, the efficient passively $Q$-switched lasers were obtained at 639 nm and 721 nm, respectively. The maximum output powers and shortest pulse widths were (256 mW, 168 ns) at 639 nm and (238 mW, 198 ns) for 721 nm. To the best of our knowledge, this is the first time there has been a visible bulk pulse laser using the GNSs as the SA. Our work indicates the GNSs could be excellent and promising optoelectronic devices in the visible domain.

© 2019 Optical Society of America

Passively Q-switched erbium doped fiber laser using a gold nanostars based saturable absorber

Zhe Kang, Mingyi Liu, Zhenwei Li, Siqing Li, Zhixu Jia, Chengzhi Liu, Weiping Qin, and Guanshi Qin
Photon. Res. 6(6) 549-553 (2018)

Few-layer MXene Ti₃C₂T_x (T = F, O, or OH) saturable absorber for visible bulk laser

Qi Yang, Feng Zhang, Ningyi Zhang, and Han Zhang
Opt. Mater. Express 9(4) 1795-1802 (2019)

Bismuth quantum dots as an optical saturable absorber for a 1.3  μm Q-switched solid-state laser

Xiancui Su, Yiran Wang, Baitao Zhang, Han Zhang, Kejian Yang, Ruihua Wang, and Jingliang He
Appl. Opt. 58(7) 1621-1625 (2019)

Passively Q-switched Yb-doped dual-wavelength fiber laser based on a gold-nanocage saturable absorber

Qiongyu Hu, Ping Li, Baitao Zhang, Binghai Liu, Lili Wang, and Xiaohan Chen
Appl. Opt. 57(28) 8242-8248 (2018)

Gold nanowires with surface plasmon resonance as saturable absorbers for passively Q-switched fiber lasers at 2 µm

Siqing Li, Zhe Kang, Nan Li, Heng Jia, Mingyi Liu, Jiaxing Liu, Ningning Zhou, Weiping Qin, and Guanshi Qin
Opt. Mater. Express 9(5) 2406-2414 (2019)