Stimulated Brillouin Scattering Enhancement Factor Improvement in a 11.6-GHz-Linewidth 1.5-kW Yb-Doped Fiber Amplifier-中国Betway体育网页登陆

摘要 ThestimulatedBrillouinscattering(SBS)thresholdenhancementfactorinapurewhitenoiselinewidthbroadeningYb-dopedfiberamplifier(YDFA)withashortlargemodeareafiberistheoreticallyandexperimentallystudied.Wedemonstratea1064.08nm,11.6GHzlinewidth,1.5kWoutputpowerYDFAwithanSBSthresholdenhancementof~57(26WSBSthresholdwithsinglefrequencyseed).Theoutputbeamisnear-diffractionlimitedwithabeamqualityfactorofM~2=1.15andaslopeefficiencyofupto87%.NoSBSorstimulatedRamanscatteringeffectsareobservedinthewholepowerrange.Furtherpowerscalingislimitedbytheavailablepumppowerinoursystem.

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Stimulated Brillouin Scattering Enhancement Factor Improvement in a 11.6-GHz-Linewidth 1.5-kW Yb-Doped Fiber Amplifier

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