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Updated: May 22, 2026
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
High-power Yb-fiber comb with feed-forward control of nonlinear-polarization-rotation mode-locking and
Ming Yan1, Wenxue Li, Kangwen Yang
1State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China.
Abstract:
We report on a simple scheme to precisely control carrier-envelope phase of a nonlinear-polarization-rotation mode-locked self-started Yb-fiber laser system with an average output power of ∼7 W and a pulse width of 130 fs. The offset frequency was locked to the repetition rate of ∼64.5 MHz with a relative linewidth of ∼1.4 MHz by using a self-referenced feed-forward scheme based on an acousto-optic frequency shifter. The phase noise and timing jitter were calculated to be 370 mrad and 120 as, respectively.
