Compressing μJ-level pulses from 250 fs to sub-10 fs at 38-MHz repetition rate using two gas-filled hollow-core photonic crystal fiber stages
Compressing μJ-level pulses from 250 fs to sub-10 fs at 38-MHz repetition rate using two gas-filled hollow-core photonic crystal fiber stages
复制标题
DOI：
10.1364/ol.40.001238
复制
发表时间：
2015-04-01
期刊：
影响因子：
3.6
通讯作者：
Russell, P. St. J.
中科院分区：
文献类型：
--
作者：
Mak, K. F.;Seidel, M.;Russell, P. St. J.
压缩250 fs，1 μ J脉冲从KLM Yb：YAG薄盘振荡器下降到9.1 fs的演示。使用具有36 μ m芯直径的kagome-PCF，压力梯度为0至40巴氪。压缩到22 fs是通过啁啾镜提供的1200 fs（2）群延迟色散实现的。通过将输出耦合到具有0至25 bar氩气压力梯度的第二个kagome-PCF中，在18 W平均输出功率下观察到通过孤子效应的倍频程跨越光谱展宽。自压缩到9.1 fs的测量，与压缩性5 fs的预测。还观察到通过色散波产生的可见光中的强发射，占总输出功率的4%。(C)2015美国光学学会
Compression of 250-fs, 1-mu J pulses from a KLM Yb:YAG thin-disk oscillator down to 9.1 fs is demonstrated. A kagome-PCF with a 36-mu m core-diameter is used with a pressure gradient from 0 to 40 bar of krypton. Compression to 22 fs is achieved by 1200 fs(2) group-delay-dispersion provided by chirped mirrors. By coupling the output into a second kagome-PCF with a pressure gradient from 0 to 25 bar of argon, octave spanning spectral broadening via the soliton-effect is observed at 18-W average output power. Self-compression to 9.1 fs is measured, with compressibility to 5 fs predicted. Also observed is strong emission in the visible via dispersive wave generation, amounting to 4% of the total output power. (C) 2015 Optical Society of America