title: All-fiber Ho-doped mode-locked oscillator based on a graphene saturable absorber.
abstract: In this Letter, we demonstrate a graphene mode-locked, all-fiber Ho-doped fiber laser generating 1.3 nJ energy pulses directly from the oscillator. The graphene used as a saturable absorber was obtained via chemical vapor deposition on copper substrate and immersed in a poly(methyl methacrylate) support. The laser generated ultrashort soliton pulses at 2080 nm with bandwidth up to 6.1 nm. The influence of the output coupling ratio and the SA modulation depth on the mode-locking performance was also investigated.
authors.forename: Jaroslaw
authors.initials: J
authors.lastname: Sotor
authors.forename: Maria
authors.initials: M
authors.lastname: Pawliszewska
authors.forename: Grzegorz
authors.initials: G
authors.lastname: Sobon
authors.forename: Pawel
authors.initials: P
authors.lastname: Kaczmarek
authors.forename: Aleksandra
authors.initials: A
authors.lastname: Przewolka
authors.forename: Iwona
authors.initials: I
authors.lastname: Pasternak
authors.forename: Jakub
authors.initials: J
authors.lastname: Cajzl
authors.forename: Pavel
authors.initials: P
authors.lastname: Peterka
authors.forename: Pavel
authors.initials: P
authors.lastname: Honzátko
authors.forename: Ivan
authors.initials: I
authors.lastname: Kašík
authors.forename: Wlodek
authors.initials: W
authors.lastname: Strupinski
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Abramski