Self-Q-switched fiber lasers with Rayleigh/SBS ring mirrors

Andrei A. Fotiadi; Patrice Megret; Michel Blondel; Dmitrii Grukh; Andrei S. Kurkov; Igor Razdobreev

doi:10.1117/12.517930

6 October 2003 Self-Q-switched fiber lasers with Rayleigh/SBS ring mirrors

Andrei A. Fotiadi, Patrice Megret, Michel Blondel, Dmitrii Grukh, Andrei S. Kurkov, Igor Razdobreev

Proceedings Volume 5137, International Conference on Lasers, Applications, and Technologies 2002: Advanced Lasers and Systems; (2003) https://doi.org/10.1117/12.517930
Event: International Conference on Lasers, Applications, and Technologies 2002, 2002, Moscow, Russian Federation

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.

Citation Download Citation

Andrei A. Fotiadi, Patrice Megret, Michel Blondel, Dmitrii Grukh, Andrei S. Kurkov, and Igor Razdobreev "Self-Q-switched fiber lasers with Rayleigh/SBS ring mirrors", Proc. SPIE 5137, International Conference on Lasers, Applications, and Technologies 2002: Advanced Lasers and Systems, (6 October 2003); https://doi.org/10.1117/12.517930

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