Semiconductor saturable absorber mirror passively Q-switched 2.97 μm fluoride fiber laser


A diode-cladding-pumped mid-infrared passively Q-switched Ho 3+-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.

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Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences > Systems analytics research institute (SARI)
Additional Information: Jianfeng Li ; Hongyu Luo ; Yulian He ; Yong Liu ; Binbin Luo ; Zhongyuan Sun ; Lin Zhang and Sergei K. Turitsyn. "Semiconductor saturable absorber mirror passively Q-switched 2.97 μm fluoride fiber laser", Proc. SPIE 9135, Laser Sources and Applications II, 913504 (May 1, 2014). Copyright 2014 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. DOI:
Event Title: Laser sources and applications II
Event Type: Other
Event Dates: 2014-04-14 - 2014-04-17
Uncontrolled Keywords: fluoride fiber laser,mid-infrared fiber laser,Q-switched fiber laser,semiconductor saturable mirror,Applied Mathematics,Computer Science Applications,Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials,Condensed Matter Physics
ISBN: 978-1-6284-1083-9
Last Modified: 05 Jan 2024 08:26
Date Deposited: 13 Aug 2015 14:25
Full Text Link: http://proceedi ... ticleid=1867840
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Conference contribution
Published Date: 2014
Authors: Li, Jianfeng
Luo, Hongyu
He, Yulian
Liu, Yong
Luo, Binbin
Sun, Zhongyuan
Zhang, Lin (ORCID Profile 0000-0002-1691-5577)
Turitsyn, Sergei (ORCID Profile 0000-0003-0101-3834)



Version: Accepted Version

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