feng jie, zhou xiaojun, zhang zhiyao, et al. Inelastic scatterings in high-power back-pumped ytterbium-doped double-clad fiber amplifiers[J]. High Power Laser and Particle Beams, 2009, 21.
Citation:
feng jie, zhou xiaojun, zhang zhiyao, et al. Inelastic scatterings in high-power back-pumped ytterbium-doped double-clad fiber amplifiers[J]. High Power Laser and Particle Beams, 2009, 21.
feng jie, zhou xiaojun, zhang zhiyao, et al. Inelastic scatterings in high-power back-pumped ytterbium-doped double-clad fiber amplifiers[J]. High Power Laser and Particle Beams, 2009, 21.
Citation:
feng jie, zhou xiaojun, zhang zhiyao, et al. Inelastic scatterings in high-power back-pumped ytterbium-doped double-clad fiber amplifiers[J]. High Power Laser and Particle Beams, 2009, 21.
Based on the numerical modeling including stimulated Brillouin scattering and stimulated Raman scattering, the propagation-rate equations of ytterbium-doped double-clad fiber amplifiers are solved. The output characteristics of the high-power backward-pumped ytterbium-doped double-clad fiber amplifiers are studied at different signal linewidths, fiber lengths and fiber-core diameters. The methods of suppressing the stimulated Brillouin scattering and stimulated Raman scattering are also investigated. Calculated results show that the two-scatterings can be suppressed simultaneously by using an ytterbium-doped fiber with the length shorter than 0.68 m and the fiber-core diameter larger than 26 μm, or broadening the signal linewidth to more than 0.04 nm.
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