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Appl. Sci. 2018, 8(5), 803; https://doi.org/10.3390/app8050803

Numerical Analysis of Q-Switched Erbium Ion Doped Fluoride Glass Fiber Laser Operation Including Spontaneous Emission

1
Department of Telecommunications and Teleinformatics, Faculty of Electronics, Wroclaw University of Science and Technology, Wybrzeże Wyspianskiego 27, Wroclaw 50-370, Poland
2
George Green Institute for Electromagnetics Research, The University of Nottingham, University Park, Nottingham NG7-2RD, UK
Received: 25 April 2018 / Revised: 9 May 2018 / Accepted: 11 May 2018 / Published: 16 May 2018
(This article belongs to the Special Issue Rare-Earth Doping for Optical Applications)
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Abstract

Partial differential equations are solved to perform a spatiotemporal analysis of Q-switched operation of a fluoride fiber laser doped with erbium ions. A method of lines is applied in order to reduce the partial differential equations to a set of ordinary differential equations. The latter set is then solved using an algorithm designed for a solution of stiff equation problems. A spontaneous emission term is added to equations that model the dynamics of the photon population within the laser cavity for the infrared signal wave. The results show that, without an inclusion of the spontaneous emission term, the correct behavior of the photon population and energy level populations cannot be reproduced. View Full-Text
Keywords: fiber lasers; Q-switched lasers; fiber laser modelling fiber lasers; Q-switched lasers; fiber laser modelling
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Sujecki, S. Numerical Analysis of Q-Switched Erbium Ion Doped Fluoride Glass Fiber Laser Operation Including Spontaneous Emission. Appl. Sci. 2018, 8, 803.

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