10 watt-level tunable narrow linewidth $1.5~\unicode[STIX]{x03BC}\text{m}$ all-fiber amplifier. (6th June 2018)

• Record Type: Journal Article
• Authors: Tang, Ni; Zhou, Zhiyue; Li, Zhixian; Wang, Zefeng
• Is Part Of: High power laser science and engineering. Volume 6(2018)
• Publication Date: 2018-06-06
• Subjects: Er-doped fibers, -- fiber amplifier, -- fiber lasers, -- high power, -- narrow linewidth; High power lasers -- Periodicals; 621.366
• DOI: 10.1017/hpl.2018.26
• Languages: English
• ISSNs: 2095-4719

Abstract

Abstract : We report here a high-power, wavelength tunable and narrow linewidth $1.5~\unicode[STIX]{x03BC}\text{m}$ all-fiber laser amplifier based on a tunable diode laser and Er-Yb co-doped fibers. The laser wavelength can be precisely tuned from 1535 nm to 1580 nm, which covers many absorption lines of mid-infrared laser gases, such as $\text{C}_{2}\text{H}_{2}$, HCN, CO, and HI. The maximum laser power is ${>}$ 11 W, and the linewidth is about 200–300 MHz, which is close to the absorption linewidth of the above-mentioned gases. This work provides a suitable pump source for high-power wavelength tunable mid-infrared fiber gas lasers based on low-loss hollow-core fibers.