Amplification of nanosecond pulses in a single-mode erbium-doped fluoride fibre amplifier

Abstract

We investigate the amplification of nanosecond pulses in a single-mode Er-fluoride fibre amplifier. A PPLN-based optical parametric oscillator (OPO) with a Q-switched Nd:YAG pump laser was used to generate seed pulses at a wavelength of 2790 nm. The OPO system produced seed pulses with sub-10 ns pulse durations and pulse energies of 0.5 μJ at a repetition rate of 10 kHz. These seed pulses were amplified in a single-mode Erbium-fluoride fibre amplifier, consisting of 2.2 m of double-clad fibre with a doping concentration of 7 mol%. Using this setup, we demonstrate gain values of up to 20 dB, output pulse energies of 52.7 μJ, and peak powers of more than 8 kW.

Publication DOI: https://doi.org/10.1109/LPT.2022.3182149
Divisions: College of Engineering & Physical Sciences > School of Informatics and Digital Engineering > Electrical and Electronic Engineering
College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: UKRI Rights Retention Statement: For the purpose of open access, the author has applied a Creative Commons Attribution (CC BY) licence to any Author Accepted Manuscript version arising Funding: This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 843801. This project has received funding from the Engineering and Physical Sciences Research Council (EPSRC), Grant No. EP/R024898/1.
Uncontrolled Keywords: Erbium-doped fiber lasers,Erbium-doped fibre,Fibre laser,Fluoride fibre,Mid-infrared,Nanosecond pulse,Optical fiber amplifiers,Optical fibers,Power amplifiers,Power generation,Power lasers,Pump lasers,ZBLAN fibre,Electronic, Optical and Magnetic Materials,Atomic and Molecular Physics, and Optics,Electrical and Electronic Engineering
Publication ISSN: 1941-0174
Full Text Link:
Related URLs: https://ieeexpl ... cument/9793635/ (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2023-01-01
Published Online Date: 2022-06-10
Accepted Date: 2022-06-01
Authors: Chichkov, Nikolai B.
Ray, Paulami
Cozic, Solenn
Yadav, Amit
Joulain, Franck
Smirnov, Semyon V.
Hinze, Ulf
Poulain, Samuel
Rafailov, Edik U. (ORCID Profile 0000-0002-4152-0120)

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