Mode-locked ytterbium fiber laser tunable in the 980-1070-nm spectral range.
Spectral tuning of a mode-locked Yb-doped fiber laser over a 90-nm range is reported. Using semiconductor saturable absorber mirrors in a fiber laser cavity incorporating a grating-pair dispersive delay line, we obtain reliable self-starting mode locking over the whole tuning range. The wide tuning range is achieved by optimization of reflection characteristics and bandgap energy of the multiple-quantum-well semiconductor saturable absorber and by proper engineering of the laser cavity.
Okhotnikov
O G
OG
Optoelectronics Research Centre, Tampere University of Technology, P.O. Box 692, FIN-33101, Tampere, Finland. Oleg.Okhotnikov@orc.tut.fi
Gomes
L
L
Xiang
N
N
Jouhti
T
T
Grudinin
A B
AB