47-fs Kerr-lens mode-locked Cr:ZnSe laser with high spectral purity.
47-fs Kerr-lens mode-locked Cr:ZnSe laser with high spectral purity.
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47-fs 克尔透镜锁模 Cr:ZnSe 激光器，具有高光谱纯度。
作者：
Yuchen Wang;T. Fernandez;N. Coluccelli;A. Gambetta;P. Laporta;G. Galzerano
报道了一台室温克尔透镜锁模Cr：ZnSe飞秒激光器，发射波长约为2.4 μm。自启动近变换限制脉冲序列的最小持续时间为47 fs，对应于6个光周期，和0.25 W的平均输出功率获得的重复频率在140至300 MHz的范围内。飞秒脉冲序列具有高光谱纯度和低时间抖动的特点。
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.