泵浦光强起伏对SBS反射率的影响
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摘要: 在忽略介质吸收和其它非线性效应的假设条件下,从理论上分析了泵浦光强起伏对受激布里渊散射反射率的影响。当泵浦光强为阈值光强的1.9倍时,反射率的稳定性接近泵浦光的稳定性,当泵浦光强大于阈值光强1.9倍时,反射率的稳定性优于泵浦光的稳定性。当泵浦光强大于阈值光强5倍时,反射率的统计起伏小于泵浦光强起伏的2.4%。Abstract: The dependence of the reflectivity in Stimulated Brillouin Scattering (SBS)on the fluctuations of the pumping intensity was analysized theoretically. The reflectivity stability was close to the pumping stability while the pumping intensity was 1.9 times of SBS threshold. The reflectivity fluctuations were 2.4% less than the pumping fluctuations while the pumping intensity was 5 times greater than SBS threshold.
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Key words:
- stimulated brillouin scattering /
- reflectivity /
- stability /
- pumping intensity
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