Femtosecond Ring All-Fiber Yb Laser with Combined Wavelength-Division Multiplexer-Isolator

摘要

An original scheme of an all-fiber all-normal-dispersion ring mode-locked Yb laser is proposed and experimentally studied. A single fiber element serves as a wavelength-division multiplexer for the pumping radiation, an optical isolator, and a spectrally selective element for the radiation of the Yb laser. The out-put pulse duration is 900 fs, and the intracavity compression yields the pulses with a duration of 200 fs. The maximum laser power is 35 mW at a wavelength of 1070 nm.