放大器
光纤放大器
材料科学
缩放比例
功率(物理)
光纤激光器
光学
纤维
发电
芯(光纤)
光电子学
激光器
物理
CMOS芯片
几何学
数学
量子力学
复合材料
作者
Manoj Kanskar,Jim Zhang
摘要
Combinable high average power fiber amplifiers with diffraction-limited beam that is suitable for High Energy Laser (HEL) applications is currently primarily limited in output power by TMI and SBS. SBS is better understood and numerous methods have been shown to be effective for scaling power to several kilowatt levels. Currently, TMI limits output power to ~3-kW for approximately 20-µm core conventional step-index dual-clad fiber amplifiers. We report on the use of low-quantum defect pumping scheme to increase the TMI threshold. We have demonstrated 5kW and further power-scaling is underway and the latest results will be presented.
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