title: Longitudinal mode control in few-mode erbium-doped fiber lasers.
abstract: We report an approach to the control of the longitudinal mode structure in erbium-doped fiber lasers that uses saturable absorbers and the spatial hole-burning effect in the laser cavity. Two- and three-mode fiber lasers are successfully demonstrated, and the laser output properties are compared with theoretical calculations.
authors.forename: H S
authors.initials: HS
authors.lastname: Kim
authors.forename: S K
authors.initials: SK
authors.lastname: Kim
authors.forename: B Y
authors.initials: BY
authors.lastname: Kim