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Volume 25 - ICOP & ICPET 2019
ICOP & ICPET _ INPC _ ICOFS 2019, 25 - ICOP & ICPET 2019: 837-840 |
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Esmaeili M R, Arabanian A S, Masoudi R. The effect of temperature gradient on stimulated Brillouin scattering in high power fiber amplifiers. ICOP & ICPET _ INPC _ ICOFS 2019; 25 :837-840
URL: http://opsi.ir/article-1-1936-en.html
URL: http://opsi.ir/article-1-1936-en.html
The effect of temperature gradient on stimulated Brillouin scattering in high power fiber amplifiers
1- Laser and Plasma Research Institute, Shahid Beheshti University, Evin,Tehran
Abstract: (1403 Views)
Suppression the power of stimulated Brillouin scattering is one of the key challenges in high power fiber amplifiers. In this paper, by solving the coupled equations of pump, signal, and stimulated Brillouin (Stokes) powers for describing their interactions, the dependence of the stimulated Brillouin scattering (SBS) power and output signal power on the temperature gradient in a ytterbium based fiber amplifier has been shown. Here, the effect of the temperature gradient on the SBS power are investigated by changing the two parameters of the heat convective coefficient and the cladding diameter. The calculation results show that these two control parameters are the proper means for significantly reducing the SBS power in the high power fiber amplifier.
Keywords: stimulated Brillouin scattering, convective coefficient, temperature gradient, high-power fiber amplifier.
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