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Volume 26 - ICOP & ICPET 2020
ICOP & ICPET _ INPC _ ICOFS 2020, 26 - ICOP & ICPET 2020: 669-672 |
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Karimi M, Aghayari E, Kamkar A, Vatani V, Nabavi S H. Investigation of Phase Modulation for SBS Threshold Enhancement in Single Frequency High-Power Amplifiers. ICOP & ICPET _ INPC _ ICOFS 2020; 26 :669-672
URL: http://opsi.ir/article-1-2151-en.html
URL: http://opsi.ir/article-1-2151-en.html
1- Iranian National Center for Laser Science and Technology
Abstract: (1360 Views)
In this paper we report the effect of phase modulation on increasing the threshold of non-linear Brillouin Scattering effect in fiber amplifiers. We theoretically and experimentally show that, applying phase modulation generates numerous new side-bands around the central frequency. This technique results in immense enhancement on SBS threshold. The effect of frequency and amplitude variation on SBS threshold is investigated. We obtain 280 W output power by optimizing the frequency to 60 MHz and the amplitude to 30 dBm, in a 3-stage fiber amplifier with narrow line-width.
Keywords: Fiber Amplifier, Phase Modulation, Single Frequency Amplifier, Stimulated Brillouin Scattering.
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