4-W, 100-kHz, few-cycle mid-infrared source with sub-100-mrad carrier-envelope phase noise.
4-W, 100-kHz, few-cycle mid-infrared source with sub-100-mrad carrier-envelope phase noise.
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DOI：
10.1364/oe.25.001505
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发表时间：
2017-01
期刊：
影响因子：
3.8
通讯作者：
N. Thiré;R. Maksimenka;B. Kiss;C. Ferchaud;P. Bizouard;É. Cormier;K. Osvay;N. Forget
中科院分区：
文献类型：
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作者：
N. Thiré;R. Maksimenka;B. Kiss;C. Ferchaud;P. Bizouard;É. Cormier;K. Osvay;N. Forget
我们展示了一种光参量啁啾脉冲放大器，它以100 kHz的重复频率输出中心波长约为3.1 µm的4个周期（38飞秒）的脉冲，平均功率为4 W，在25分钟内记录到的欠采样单次载波包络相位噪声为81毫弧度。该放大器由脉宽约为1.1 ps的Yb - YAG薄盘再生放大器泵浦，并由来自相同泵浦脉冲在块状YAG中产生的超连续谱作为种子光。通过泵浦脉冲和种子脉冲之间的差频产生，被动实现了载波包络相位稳定性。结合2f - f干涉测量法和LiNbO₃声光可编程色散滤波器，在10 kHz进行额外的主动稳定，实现了创纪录的低相位噪声。
We demonstrate an optical parametric chirped-pulse amplifier delivering 4-cycles (38-fs) pulses centered around 3.1 µm at 100-kHz repetition rate with an average power of 4 W and an undersampled single-shot carrier-envelope phase noise of 81 mrad recorded over 25 min. The amplifier is pumped by a ~1.1 ps, Yb-YAG, thin-disk regenerative amplifier and seeded with a supercontinuum generated in bulk YAG from the same pump pulses. Carrier-envelope phase stability is passively achieved through difference-frequency generation between pump and seed pulses. An additional active stabilization at 10 kHz combining 2f-to-f interferometry and a LiNbO3 acousto-optic programmable dispersive filter achieves a record low phase noise.