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Proceedings Paper

Numerical simulations of the optical gain of crystalline fiber doped by rare earth and transition ion
Author(s): A. K. Daoui; B. Boubir; A. Adouane; N. Demagh; M. Ghoumazi
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Paper Abstract

A fiber laser is a laser whose gain medium is a doped fiber, although lasers whose cavity is made wholly of fibers have also been called fiber lasers. The gain media in a fiber laser is usually fiber doped with rare-earth ions, such as erbium (Er), neodymium (Nd), ytterbium (Yb), thulium (Tm), or praseodymium (Pr), which is doped into the core of the optical fiber, similar to those used to transmit telecommunications signals. Fiber lasers find many applications in materials processing, including cutting, welding, drilling, and marking metal. To maximize their market penetration, it is necessary to increase their output power. In this work, we present a detailed study based on the numerical simulation using MATLAB, of one of the principal characteristics of a fiber laser doped with rare earth ions and transition ion. The gain depends on several parameters such as the length of the doped fiber, the density, the pump power, noise, etc.). The used program resolves the state equations in this context together with those governing the light propagation phenomena. The developed code can also be used to study the dynamic operating modes of a doped fiber laser.

Paper Details

Date Published: 20 February 2015
PDF: 6 pages
Proc. SPIE 9342, Solid State Lasers XXIV: Technology and Devices, 93421Q (20 February 2015); doi: 10.1117/12.2075434
Show Author Affiliations
A. K. Daoui, Setif 1 Univ. (Algeria)
B. Boubir, Setif 1 Univ. (Algeria)
A. Adouane, Setif 1 Univ. (Algeria)
N. Demagh, Setif 1 Univ. (Algeria)
M. Ghoumazi, Setif 1 Univ. (Algeria)

Published in SPIE Proceedings Vol. 9342:
Solid State Lasers XXIV: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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