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Open AccessLetter

Experimental Investigation of Actively Q-Switched Er3+:ZBLAN Fiber Laser Operating at around 2.8 µm

1
Department of Telecommunications and Teleinformatics, Faculty of Electronics, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
2
LISA Laser Products GmbH, Albert-Einstein-Straße 4, 37191 Katlenburg-Lindau, Germany
3
Gooch & Housego Ltd., Dowlish Ford, Ilminster, Somerset TA19 OPF, UK
4
Mid-Infrared Photonics Group, George Green Institute for Electromagnetics Research, Faculty of Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, UK
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(16), 4642; https://doi.org/10.3390/s20164642
Received: 17 July 2020 / Revised: 13 August 2020 / Accepted: 14 August 2020 / Published: 18 August 2020
A diode-pumped Q-switched Er3+:ZBLAN double-clad, single-transverse mode fiber laser is practically realized. The Q-switched laser characteristics as a function of pump power, repetition rate, and fiber length are experimentally investigated. The results obtained show that the Q-switched operation with 46 µJ pulse energy, 56 ns long pulses, and 0.821 kW peak power is achieved at a pulse repetition rate of 10 kHz. To the best of our knowledge, this is the highest-ever demonstrated peak power emitted from an actively Q-switched, single-transverse mode Er3+:ZBLAN fiber laser operating near 2.8 µm. View Full-Text
Keywords: mid-infrared light sources; fluoride glass fibers; mid-infrared; fiber lasers mid-infrared light sources; fluoride glass fibers; mid-infrared; fiber lasers
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MDPI and ACS Style

Sojka, L.; Pajewski, L.; Lamrini, S.; Farries, M.; Benson, T.M.; Seddon, A.B.; Sujecki, S. Experimental Investigation of Actively Q-Switched Er3+:ZBLAN Fiber Laser Operating at around 2.8 µm. Sensors 2020, 20, 4642.

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