Abstract

We report here on a diode-pumped pulsed mid-infrared laser source based on gas-filled hollow-core fibers (HCFs) towards an all-fiber structure by the tapering method. The pump laser is coupled into an acetylene-filled HCF through a tapered single-mode fiber. By precisely tuning the wavelength of the diode to match different absorption lines of acetylene near 1.5 μm, mid-infrared emission around 3.1–3.2 μm is generated. With 2 m HCFs and 3 mbar acetylene gas, a maximum average power of 130 mW is obtained with a laser slope efficiency of ∼24%. This work provides a potential scheme for all-fiber mid-infrared fiber gas lasers.

© 2019 Chinese Laser Press

Mid-infrared fiber gas amplifier in acetylene-filled hollow-core fiber

Wei Huang, Zhiyue Zhou, Yulong Cui, Zefeng Wang, and Jinbao Chen
Opt. Lett. 47(18) 4676-4679 (2022)

High-power tunable mid-infrared fiber gas laser source by acetylene-filled hollow-core fibers

Zhiyue Zhou, Ni Tang, Zhixian Li, Wei Huang, Zefeng Wang, Wuming Wu, and Weihong Hua
Opt. Express 26(15) 19144-19153 (2018)

High power mid-infrared fiber amplifier at 3.1 µm by acetylene-filled hollow-core fibers

Wei Huang, Xin Zhang, Zhiyue Zhou, Zhixian Li, Yulong Cui, Xuanxi Li, Jinbao Chen, Pu Wang, and Zefeng Wang
Opt. Express 31(15) 24835-24844 (2023)

Fiber laser source of 8 W at 3.1 µm based on acetylene-filled hollow-core silica fibers

Wei Huang, Zefeng Wang, Zhiyue Zhou, Yulong Cui, Hao Li, Wenxi Pei, Meng Wang, and Jinbao Chen
Opt. Lett. 47(9) 2354-2357 (2022)

Efficient diode-pumped mid-infrared emission from acetylene-filled hollow-core fiber

Zefeng Wang, Walter Belardi, Fei Yu, William J. Wadsworth, and Jonathan C. Knight
Opt. Express 22(18) 21872-21878 (2014)