Low-noise fiber-laser frequency combs (Invited)
Low-noise fiber-laser frequency combs (Invited)
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DOI：
10.1364/josab.24.001756
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发表时间：
2007-08-01
影响因子：
1.9
通讯作者：
Swann, William C.
中科院分区：
文献类型：
--
作者：
Newbury, Nathan R.;Swann, William C.
我们讨论了低噪声光纤激光器频率梳的实验和理论方面，包括实验配置和主要贡献的频率噪声和线宽的个别梳模式。作用于锁模激光器的腔内噪声源决定了自由运行的梳状线宽，包括环境变化、泵浦噪声和放大的自发辐射（ASE）。作用于激光器外部的腔外噪声源通常确定梳状线上的信噪比，并且包括环境效应、散粒噪声和在超连续谱产生期间产生的噪声。反馈强烈抑制这些腔内噪声的贡献，产生一个系统，梳状线宽和定时抖动低于腔内ASE设置的量子限制。最后，我们讨论了相位锁定梳的残余噪声的相关性。（c）2007年美国光学学会。
We discuss experimental and theoretical aspects of a low-noise fiber-laser frequency comb, including the experimental configuration and the major contributions to the frequency noise and linewidth of the individual comb modes. Intracavity noise sources acting on the mode-locked laser determine the free-running comb linewidth and include environmental changes, pump noise, and amplified spontaneous emission (ASE). Extracavity noise sources acting outside of the laser typically determine the signal-to-noise ratio on the comb lines and include environmental effects, shot noise, and noise generated during supercontinuum generation. Feedback strongly suppresses these intracavity noise contributions, yielding a system that operates with comb linewidths and timing jitter below the quantum limit set by the intracavity ASE. Finally, we discuss correlations in the residual noise across a phase-locked comb. (c) 2007 Optical Society of America.