8 ns fiber laser Q switched by the resonant saturable absorber mirror.
We demonstrate that resonant high-modulation-depth saturable absorbers allow efficient pulse shortening in Q-switched lasers. Using a 70% modulation depth resonant saturable absorber mirror we achieved 8 ns pulses that are close to the limit set by the cavity length and are, to our knowledge, the shortest pulses demonstrated to date from passively Q-switched fiber lasers.
Hakulinen
Tommi
T
Optoelecronics Research Centre, Tampere University of Technology, FIN-33101, Tampere, Finland. tommi.hakulinen@tut.fi
Okhotnikov
Oleg G
OG