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Proceedings Paper

Semiconductor saturable absorber mirror passively Q-switched 2.97 μm fluoride fiber laser
Author(s): Jianfeng Li; Hongyu Luo; Yulian He; Yong Liu; Binbin Luo; Zhongyuan Sun; Lin Zhang; Sergei K. Turitsyn
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Paper Abstract

A diode-cladding-pumped mid-infrared passively Q-switched Ho3+-doped fluoride fiber laser using a reverse designed broad band semiconductor saturable mirror (SESAM) was demonstrated. Nonlinear reflectivity of the SESAM was measured using an in-house Yb3+-doped mode-locked fiber laser at 1062 nm. Stable pulse train was produced at a slope efficient of 12.1% with respect to the launched pump power. Maximum pulse energy of 6.65 μJ with a pulse width of 1.68 μs and signal to noise ratio (SNR) of ~50 dB was achieved at a repetition rate of 47.6 kHz and center wavelength of 2.971 μm. To the best of our knowledge, this is the first 3 μm region SESAM based Q-switched fiber laser with the highest average power and pulse energy, as well as the longest wavelength from mid-infrared passively Q-switched fluoride fiber lasers.

Paper Details

Date Published: 1 May 2014
PDF: 6 pages
Proc. SPIE 9135, Laser Sources and Applications II, 913504 (1 May 2014); doi: 10.1117/12.2053893
Show Author Affiliations
Jianfeng Li, Univ. of Electronic Science and Technology of China (China)
Aston Univ. (United Kingdom)
Hongyu Luo, Univ. of Electronic Science and Technology of China (China)
Yulian He, Univ. of Electronic Science and Technology of China (China)
Yong Liu, Univ. of Electronic Science and Technology of China (China)
Binbin Luo, Chongqing Univ. of Technology (China)
Zhongyuan Sun, Aston Univ. (United Kingdom)
Lin Zhang, Aston Univ. (United Kingdom)
Sergei K. Turitsyn, Aston Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 9135:
Laser Sources and Applications II
Jacob I. Mackenzie; Helena JelÍnková; Takunori Taira; Marwan Abdou Ahmed, Editor(s)

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