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Proceedings Paper

Self-Q-switched fiber lasers with Rayleigh/SBS ring mirrors
Author(s): Andrei A. Fotiadi; Patrice Megret; Michel Blondel; Dmitrii Grukh; Andrei S. Kurkov; Igor Razdobreev
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Paper Abstract

Passive Q-switching in fiber lasers can be caused by cooperative dynamics of linear Rayleigh backscattering (RS) and Stimulated Brillouin Scattering (SBS) in a fiber configuration. We give a clear physical insight into the RS-SBS mechanism and present new experiments with low- and high-power self-Q-switched fiber lasers. A 15-ns self-stating periodic pulse generation with a peak power up to 40-300 W has been investigated with an Er-doped fiber laser pumped at 20-160 mW from a laser diode. The generation of Q-switched pulses occurs with a perfect pulse shape performance without emitting any parasitic pulse. We have also realized a self Q-switched double-clad Yb-doped fiber laser. For this laser an average/peak power as high as 1.4 W/5 kW has been achieved at a pulse repetition rate in a range of 5-50 kHz and a pulse duration of 5-10 ns.

Paper Details

Date Published: 6 October 2003
PDF: 12 pages
Proc. SPIE 5137, International Conference on Lasers, Applications, and Technologies 2002: Advanced Lasers and Systems, (6 October 2003); doi: 10.1117/12.517930
Show Author Affiliations
Andrei A. Fotiadi, Faculte Polytechnique de Mons (Belgium)
A.F. Ioffe Physico-Technical Institute (Russia)
Patrice Megret, Faculte Polytechnique de Mons (Belgium)
Michel Blondel, Faculte Polytechnique de Mons (Belgium)
Dmitrii Grukh, General Physics Institute (Russia)
Andrei S. Kurkov, General Physics Institute (Russia)
Igor Razdobreev, Univ. des Sciences et Technologies de Lille (France)


Published in SPIE Proceedings Vol. 5137:
International Conference on Lasers, Applications, and Technologies 2002: Advanced Lasers and Systems

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