We report a compact all-diode-laser-pumped erbium-doped fiber system consisting of an environmentally stable Kerr-type mode-locked fiber oscillator and a fiber amplifier. High-repetition-rate (38 MHz) 200-fs-duration pulses were amplified to as much as 3 nJ of energy and 150 mW of average power. Amplification of unstretched and stretched pulses was studied. Using chirped-pulse amplification, we obtained clean pedestal-free 420-fs pulses. Amplification of unstretched pulses produced 84-fs pulses with a broad pedestal.
© 1994 Optical Society of America
Original Manuscript: December 8, 1993
Published: August 15, 1994
A. Galvanauskas, M. E. Fermann, and D. Harter, "High-power amplification of femtosecond optical pulses in a diode-pumped fiber system," Opt. Lett. 19, 1201-1203 (1994)