title: Waveguide-saturable absorber fabricated by femtosecond pulses in YAG:Cr(4+) crystal for Q-switched operation of Yb-fiber laser.
abstract: A waveguide-saturable absorber with low propagation loss is fabricated by femtosecond pulses in YAG:Cr(4+) crystal. Q-switch operation of a Yb fiber laser with the new saturable absorber having absorption saturation parameters similar to the bulk YAG:Cr(4+) crystal is demonstrated.
authors.affiliation: Photonics Research Group, Aston University, Birmingham, B4 7ET, UK. a.okhrimchuk@aston.ac.uk
authors.forename: Andrey G
authors.initials: AG
authors.lastname: Okhrimchuk
authors.forename: Vladimir K
authors.initials: VK
authors.lastname: Mezentsev
authors.forename: Vladislav V
authors.initials: VV
authors.lastname: Dvoyrin
authors.forename: Andrey S
authors.initials: AS
authors.lastname: Kurkov
authors.forename: Evgeny M
authors.initials: EM
authors.lastname: Sholokhov
authors.forename: Sergey K
authors.initials: SK
authors.lastname: Turitsyn
authors.forename: Alexander V
authors.initials: AV
authors.lastname: Shestakov
authors.forename: Ian
authors.initials: I
authors.lastname: Bennion