KAIST Institute for Optical Science and Technology and School of Mechanical, Aerospace and Systems Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, South Korea.
Opt Lett. 2011 May 15;36(10):1761-3. doi: 10.1364/OL.36.001761.
We investigate the high-frequency timing jitter spectral density of mode-locked fiber lasers in different mode-locked regimes. Quantum-noise-limited timing jitter spectra of mode-locked-regime-switchable Yb fiber lasers are measured up to the Nyquist frequency with sub-100-as resolution. The integrated rms timing jitter of soliton, stretched-pulse, and self-similar Yb fiber lasers is measured to be 1.8, 1.1, and 2.9 fs, respectively, when integrated from 10 kHz to 40 MHz. The distinct behavior of jitter spectral density related to pulse formation mechanisms is revealed experimentally for the first time.
我们研究了不同锁模状态下锁模光纤激光器的高频定时抖动谱密度。通过亚 100 飞秒的分辨率，测量了模式锁定状态可切换的掺镱光纤激光器的量子噪声限制定时抖动谱，直至奈奎斯特频率。当从 10 kHz 积分到 40 MHz 时，孤子、展宽脉冲和自相似掺镱光纤激光器的积分均方根定时抖动分别为 1.8 fs、1.1 fs 和 2.9 fs。实验首次揭示了与脉冲形成机制相关的抖动谱密度的明显行为。
