具有高光谱纯度的47飞秒克尔透镜锁模Cr:ZnSe激光器。

47-fs Kerr-lens mode-locked Cr:ZnSe laser with high spectral purity.

作者信息

Wang Yuchen, Fernandez Toney T, Coluccelli Nicola, Gambetta Alessio, Laporta Paolo, Galzerano Gianluca

出版信息

Opt Express. 2017 Oct 16;25(21):25193-25200. doi: 10.1364/OE.25.025193.

DOI:10.1364/OE.25.025193

Abstract

We report on a room-temperature Kerr-lens mode-locked Cr:ZnSe femtosecond laser operating at around 2.4 μm emission wavelength. Self-starting nearly transform-limited pulse trains with a minimum duration of 47 fs, corresponding to six optical cycles, and average output power of 0.25 W are obtained with repetition frequencies in the range from 140 to 300 MHz. The femtosecond pulse train is characterized by high-spectral purity and low time jitter.

摘要

我们报道了一种室温克尔透镜锁模Cr:ZnSe飞秒激光器，其发射波长约为2.4μm。在140至300MHz的重复频率范围内，获得了自启动、近变换极限的脉冲序列，其最短持续时间为47fs，对应六个光学周期，平均输出功率为0.25W。该飞秒脉冲序列具有高光谱纯度和低时间抖动的特点。