Visible pulse compression to 4 fs by optical parametric amplification and programmable dispersion control
Visible pulse compression to 4 fs by optical parametric amplification and programmable dispersion control
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DOI：
10.1364/ol.27.000306
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发表时间：
2002-03-01
期刊：
影响因子：
3.6
通讯作者：
Kobayashi, T
中科院分区：
文献类型：
--
作者：
Baltuska, A;Fuji, T;Kobayashi, T
泵浦频率的角色散是提高非共线光参量放大器带宽的一种有效机制。我们演示了一个连续的，同时相位匹配的250-THz参变放大光谱的产生。由微机械加工的柔性反射镜将产生的可见光-近红外信号波脉冲压缩到4fS的持续时间。迭代计算机控制色散补偿算法的反馈是基于二次谐波产生频率分辨光学选通的脉冲特性。(C)2002年美国光学学会。
Angular dispersion of pump frequencies is shown to be an efficient mechanism for bandwidth enhancement in a noncollinear optical parametric amplifier. We demonstrate the generation of a continuous, simultaneously phase-matched 250-THz parametrically amplified spectrum. The resultant visible-near-IR signal-wave pulses were compressed to a 4-fs duration by a micromachined flexible mirror. Feedback for an iterative computer-controlled dispersion compensation algorithm is based on pulse characterization by second-harmonic generation frequency-resolved optical gating. (C) 2002 Optical Society of America.