We demonstrate a widely tunable passively mode-locked fiber laser operating at a fundamental frequency of 80 MHz with an output power of 90 mW. The laser is capable of generating 5-ps pulses in the region 1010–1064 nm. A strong mode-locking mechanism promoted by frequency-shifted feedback allows us to operate in simultaneous <i>Q</i>-switched and mode-locked regimes and to obtain peak power in excess of 1.2 kW.
© 1998 Optical Society of America
(140.3500) Lasers and laser optics : Lasers, erbium
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3600) Lasers and laser optics : Lasers, tunable
(140.4050) Lasers and laser optics : Mode-locked lasers
J. Porta, A. B. Grudinin, Z. J. Chen, J. D. Minelly, and N. J. Traynor, "Environmentally stable picosecond ytterbium fiber laser with a broad tuning range," Opt. Lett. 23, 615-617 (1998)