Sub-20-Attosecond Timing Jitter Mode-Locked Fiber Lasers

  title={Sub-20-Attosecond Timing Jitter Mode-Locked Fiber Lasers},
  author={Hyoji Kim and Peng Qin and Youjian Song and Heewon Yang and Junho Shin and Chur Kim and Kwangyun Jung and Ching-yue Wang and Jungwon Kim},
  journal={IEEE Journal of Selected Topics in Quantum Electronics},
We demonstrate 14.3-attosecond timing jitter [integrated from 10 kHz to 94 MHz offset frequency] optical pulse trains from 188-MHz repetition-rate mode-locked Yb-fiber lasers. In order to minimize the timing jitter, we shorten the non-gain fiber length to shorten the pulsewidth and reduce excessive higher-order nonlinearity and nonlinear chirp in the fiber laser. The measured jitter spectrum is limited by the amplified spontaneous emission limited quantum noise in the 100 kHz-1 MHz offset… 

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