Locking the carrier-envelope-offset frequency of an optical parametric oscillator without f-2f self-referencing.
Locking the carrier-envelope-offset frequency of an optical parametric oscillator without f-2f self-referencing.
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DOI：
10.1364/ol.35.001668
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发表时间：
2010-05
期刊：
影响因子：
3.6
通讯作者：
T. Ferreiro;Jinghua Sun;D. Reid
中科院分区：
文献类型：
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作者：
T. Ferreiro;Jinghua Sun;D. Reid
飞秒光参量振荡器 (OPO) 脉冲的载波包络偏移 (CEO) 频率稳定 30 分钟，无需在 OPO 或其泵浦激光器中进行 f-2f 自参考。泵浦超连续谱的高频模式与非相位匹配泵浦+信号和频混合脉冲的模式之间的干涉提供了用于锁定的拍频信号。锁定CEO频率的-3 dB带宽经测量为1.1 kHz，1秒内记录的累积相位误差为0.38 rad，与之前的结果相比，提高了1个数量级。
The carrier-envelope-offset (CEO) frequency of pulses from a femtosecond optical parametric oscillator (OPO) was stabilized for 30 min without the need for f-2f self-referencing in either the OPO or its pump laser. Interference between the high-frequency modes of the pump supercontinuum and the modes of the non-phase-matched pump+signal sum-frequency-mixing pulses provided the beat signal used for locking. The -3 dB bandwidth of the locked CEO-frequency was measured as 1.1 kHz, and the cumulative phase error recorded over 1 s was 0.38 rad, representing 1-order-of-magnitude improvement in comparison to previous results.