High-energy femtosecond Yb-doped all-fiber monolithic chirped-pulse amplifier at repetition rate of 1 MHz
Lv Zhi-Guo1, Teng Hao2, †, 
, Wang Li-Na2, Wang Jun-Li1, Wei Zhi-Yi1, 2, ‡,
, Wang Li-Na2, Wang Jun-Li1, Wei Zhi-Yi1, 2, ‡, Schematic diagram of the 1-MHz all-fiber amplifier. PBS: polarization beam splitter; QWP (HWP): quarter-(half-) waveplate; WDM: wavelength-division multiplexer; SC-YDF: single-clad Yb-doped fiber; DCF-YDF: double-clad Yb-doped fiber; DDPG: digital delay and pulse generator; AOM: acousto–optic modulator.
