title: Graphene oxide vs. reduced graphene oxide as saturable absorbers for Er-doped passively mode-locked fiber laser.
abstract: In this work we demonstrate comprehensive studies on graphene oxide (GO) and reduced graphene oxide (rGO) based saturable absorbers (SA) for mode-locking of Er-doped fiber lasers. The paper describes the fabrication process of both saturable absorbers and detailed comparison of their parameters. Our results show, that there is no significant difference in the laser performance between the investigated SA. Both provided stable, mode-locked operation with sub-400 fs soliton pulses and more than 9 nm optical bandwidth at 1560 nm center wavelength. It has been shown that GO might be successfully used as an efficient SA without the need of its reduction to rGO. Taking into account simpler manufacturing technology and the possibility of mass production, GO seems to be a good candidate as a cost-effective material for saturable absorbers for Er-doped fiber lasers.
authors.affiliation: Laser & Fiber Electronics Group, Wroclaw University of Technology, Wroclaw, Poland. grzegorz.sobon@pwr.wroc.pl
authors.forename: Grzegorz
authors.initials: G
authors.lastname: Sobon
authors.forename: Jaroslaw
authors.initials: J
authors.lastname: Sotor
authors.forename: Joanna
authors.initials: J
authors.lastname: Jagiello
authors.forename: Rafal
authors.initials: R
authors.lastname: Kozinski
authors.forename: Mariusz
authors.initials: M
authors.lastname: Zdrojek
authors.forename: Marcin
authors.initials: M
authors.lastname: Holdynski
authors.forename: Piotr
authors.initials: P
authors.lastname: Paletko
authors.forename: Jakub
authors.initials: J
authors.lastname: Boguslawski
authors.forename: Ludwika
authors.initials: L
authors.lastname: Lipinska
authors.forename: Krzysztof M
authors.initials: KM
authors.lastname: Abramski
mesh_terms: D000042:Absorption; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D006108:Graphite / Q000737:chemistry*; D053844:Lasers, Solid-State; D008027:Light; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry
chemical_list: D010087:Oxides; D006108:Graphite