中国物理B ›› 2013, Vol. 22 ›› Issue (11): 114208-114208.doi: 10.1088/1674-1056/22/11/114208
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
肖起榕, 任海翠, 李丹, 巩马理, 闫平
Xiao Qi-Rong (肖起榕), Ren Hai-Cui (任海翠), Li Dan (李丹), Gong Ma-Li (巩马理), Yan Ping (闫平)
摘要: We proposed the concept of parallel injection power amplification. A tapered fiber amplifier with multi-seed sources by the way of parallel injection was studied. The lower-order modes are excited and more than 90% of the input signal power remains in the fiber core if optimal injection and taper design are set. The power in the doped-core is amplified with high optical-optical efficiency. When light is propagating along the fiber, the higher-order modes are filtered which results in the high output beam quality. Incoherent combination of multi-seed lights launched through the wide end gives rise to the output power of several kW.
中图分类号: (Fiber lasers)