All-fiber interferometer-based repetition-rate stabilization of mode-locked lasers to 10-14-level frequency instability and 1-fs-level jitter over 1 s.
All-fiber interferometer-based repetition-rate stabilization of mode-locked lasers to 10-14-level frequency instability and 1-fs-level jitter over 1 s.
复制标题
基于全光纤干涉仪的锁模激光器重复率稳定性达到 10-14 级频率不稳定性和 1 秒内 1-fs 级抖动。
DOI：
10.1364/ol.42.005186
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发表时间：
2017
期刊：
影响因子：
3.6
通讯作者：
Jungwon Kim
中科院分区：
文献类型：
--
作者：
Dohyeon Kwon;Jungwon Kim
我们报道了基于全光纤迈克尔逊干涉仪的飞秒锁模激光器的重复频率稳定性，在1 s的时间尺度下，频率不稳定性降低到1.3×10-14，抖动降低到1.4 fs。使用紧凑封装的10 km长单模光纤（SMF）-28光纤链路作为定时参考，允许将10 GHz载波处的相位噪声缩放到1 Hz傅立叶频率处的-80 dBc/Hz。我们还测试了一个500米长的低热敏光纤作为参考，发现，与标准SMF-28光纤相比，它可以减轻相位噪声发散在0.1-1 Hz傅立叶频率范围内的10 dB/dec。这些结果表明，使用一个较长的低热敏光纤可以实现亚飞秒的综合定时抖动与亚10-14级的频率不稳定性的重复率通过一个简单而强大的全光纤光子方法。
We report on all-fiber Michelson interferometer-based repetition-rate stabilization of femtosecond mode-locked lasers down to 1.3×10-14 frequency instability and 1.4 fs integrated jitter in a 1 s time scale. The use of a compactly packaged 10 km long single-mode fiber (SMF)-28 fiber link as a timing reference allows the scaling of phase noise at a 10 GHz carrier down to -80 dBc/Hz at 1 Hz Fourier frequency. We also tested a 500 m long low-thermal-sensitivity fiber as a reference and found that, compared to standard SMF-28 fiber, it can mitigate the phase noise divergence by ∼10 dB/dec in the 0.1-1 Hz Fourier frequency range. These results suggest that the use of a longer low-thermal-sensitivity fiber may achieve sub-femtosecond integrated timing jitter with sub-10-14-level frequency instability in repetition rate by a simple and robust all-fiber-photonic method.