通过使用大芯区光子晶体光纤实现耗散孤子光纤激光器的兆瓦级高峰值功率。
Scaling of dissipative soliton fiber lasers to megawatt peak powers by use of large-area photonic crystal fiber.
机构信息
Department of Applied Physics, Cornell University, Ithaca, New York 14853, USA.
出版信息
Opt Lett. 2010 May 15;35(10):1569-71. doi: 10.1364/OL.35.001569.
Abstract
We report an all-normal dispersion femtosecond laser based on large-mode-area Yb-doped photonic crystal fiber. Self-starting mode-locked pulses are obtained with an average power of 12 W at 84 MHz repetition rate, corresponding to 140 nJ of chirped pulse energy. These are dechirped to a near transform-limited duration of 115 fs. Experimental results are consistent with numerical simulations of dissipative soliton intra-cavity pulse evolution, and demonstrate scaling of 100 fs pulses to megawatt peak powers.
摘要
我们报道了一种基于大模场掺镱光子晶体光纤的全正色散飞秒激光器。在 84MHz 重复率下，获得了平均功率为 12W 的自启动锁模脉冲，对应啁啾脉冲能量为 140nJ。这些脉冲经过去啁啾后得到了接近变换极限的 115fs 脉宽。实验结果与腔内耗散孤子脉冲演化的数值模拟一致，并证明了 100fs 脉冲可扩展到兆瓦级峰值功率。
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