Lasers, Fiber Optics, and Communications

Control of the square pulse properties in figure-of-eight microstructured fiber laser

[+] Author Affiliations
Faouzi Bahloul, Rabah Attia

Université de Carthage, Laboratoire Systèmes Electroniques et Réseaux de Communications, Ecole Polytechnique de Tunisie, EPT, B.P. 743, 2078, Tunisie

Khmaies Guesmi

Université de Carthage, Laboratoire Systèmes Electroniques et Réseaux de Communications, Ecole Polytechnique de Tunisie, EPT, B.P. 743, 2078, Tunisie

Université d’Angers, Laboratoire de Photonique d’Angers, E.A. 4464, 2 Bd Lavoisier, 49045 Angers Cedex 01, France

Mohamed Salhi, François Sanchez

Université d’Angers, Laboratoire de Photonique d’Angers, E.A. 4464, 2 Bd Lavoisier, 49045 Angers Cedex 01, France

Opt. Eng. 55(2), 026102 (Feb 01, 2016). doi:10.1117/1.OE.55.2.026102
History: Received September 30, 2015; Accepted January 7, 2016
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Abstract.  We numerically analyze the square pulse emission from a passively mode-locked figure-of-eight microstructured optical fiber laser. Numerical simulations demonstrate that the high nonlinearity of the microstructured fiber plays a key role in the output pulse duration. A dual-stage erbium-doped fiber amplifier has been used in the cavity. The first amplifier, localized in the nonlinear amplifying loop mirror, allows control of the pulse width, while the second amplifier in the unidirectional ring allows variation of the amplitude without affecting the pulse width. Our results give some physical insight to the square pulse formation and the generation of high-energy pulses. Our numerical model provides a general approach to control the properties of a square pulse, and hence could be of great importance for the design of practical high-energy fiber laser systems.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Faouzi Bahloul ; Khmaies Guesmi ; Mohamed Salhi ; François Sanchez and Rabah Attia
"Control of the square pulse properties in figure-of-eight microstructured fiber laser", Opt. Eng. 55(2), 026102 (Feb 01, 2016). ; http://dx.doi.org/10.1117/1.OE.55.2.026102


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