Graphene-based, ultrafast Er-doped fiber laser with linearly polarized output pulses

Abstract

We demonstrate an all-fiber, Er-doped fiber laser mode-locked with a graphene-based saturable absorber. The resonator is designed using only polarization maintaining fibers and components, which allows to achieve a linearly polarized output beam. The laser delivers 595fs long pulses at a 1560nm center wavelength with a 6. nm bandwidth and a 67MHz repetition rate. As a saturable absorber, a graphene-polymer composite was used. © 2014 Photonics Society of Poland.