Asynchronous midinfrared ultrafast optical parametric oscillator for dual-comb spectroscopy.
Asynchronous midinfrared ultrafast optical parametric oscillator for dual-comb spectroscopy.
复制标题
DOI：
10.1364/ol.37.000187
复制
发表时间：
2012-01
期刊：
影响因子：
3.6
通讯作者：
Zhaowei Zhang;Chenglin Gu;Jinghua Sun;Ching-yue Wang;T. Gardiner;D. Reid
中科院分区：
文献类型：
--
作者：
Zhaowei Zhang;Chenglin Gu;Jinghua Sun;Ching-yue Wang;T. Gardiner;D. Reid
使用超快光学参量振荡器产生了两个异步、宽带3.3 μ m脉冲序列，其稳定重复率差高达5 kHz。两个振荡通道，每个产生约100 mW的平均功率，基本上是独立运行的，它们之间微弱的非相位匹配和频率混合提供了一个定时信号，表明异步脉冲何时重合。该系统可以直接应用于非相干异步光学采样，并且具有额外的载波包络偏移稳定，可以应用于相干双频梳状光谱。
Two asynchronous, broadband 3.3 µm pulse trains with a stabilized repetition-rate difference of up to 5 kHz were generated using an ultrafast optical parametric oscillator. The two oscillation channels, each producing ~100 mW average power, ran essentially independently, and weak non-phase-matched sum-frequency mixing between them provided a timing signal that indicated when the asynchronous pulses coincided. The system has immediate applications in incoherent asynchronous optical sampling and, with additional carrier-envelope-offset stabilization, could be applied to coherent dual-frequency-comb spectroscopy.