Passively mode-locked erbium-doped double-clad fiber laser operating at the 322nd harmonic.
We report passive mode locking of a soliton erbium-doped double-clad fiber laser operating at the 322nd harmonic of the fundamental cavity frequency. Repetition rates up to 3 GHz have been obtained with pulses of 1 ps duration and 18 pJ of energy. The supermode suppression at the 322nd harmonic is better than 25 dB. In addition, the transition dynamics from a bunched state of pulses to stable harmonic mode locking is presented, revealing a very long time scale.
Amrani
F
F
Laboratoire POMA, FRE CNRS 2988, Université d'Angers, Angers, France.
Haboucha
A
A
Salhi
M
M
Leblond
H
H
Komarov
A
A
Grelu
Ph
P
Sanchez
F
F