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arXiv 1102.1046physics.optics
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脉冲动力学对锁模光纤激光器定时抖动的影响

Impact of pulse dynamics on timing jitter in mode-locked fiber lasers

Youjian Song, Kwangyun Jung, Jungwon Kim

摘要:

研究了锁模光纤激光器在不同锁模状态下的高频定时抖动谱密度。测量了锁模状态可切换Yb光纤激光器在奈奎斯特频率范围内的量子噪声限制的定时抖动谱,其分辨率低于100。在10 kHz ~ 40 MHz范围内,测量了孤子、展宽脉冲和自相似Yb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。首次从实验上揭示了抖动谱密度与脉冲形成机制的关系。

英文摘要:

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 fs, 1.1 fs, 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.

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