Passively mode-locked fiber lasers cladding pumped by broad-area diode-laser arrays are described. With a dispersion-compenstated erbium–ytterbium fiber oscillator, 200-fs pulses with pulse energies up to 100 pJ are generated at a wavelength of 1560 nm. In a highly dispersive cavity, pulse widths of 3 ps with pulse energies up to 1 nJ are obtained. A saturable absorber is used for pulse startup, whereas nonlinear polarization evolution is exploited for steady-state pulse shaping. An environmentally stable design is ensured by use of a compensation scheme for linear polarization drifts in the cavity.
© 1996 Optical Society of America
M. E. Fermann, D. Harter, J. D. Minelly, and G. G. Vienne, "Cladding-pumped passively mode-locked fiber laser generating femtosecond and picosecond pulses," Opt. Lett. 21, 967-969 (1996)