title: Raman fiber laser with 81 W output power at 1480 nm.
abstract: We demonstrate a Raman fiber laser with an operating wavelength of 1480 nm and record output power of 81 W. High-power operation is enabled by a long-period grating used to frustrate backward lasing at the Stokes wavelength in the Yb-doped fiber amplifier. A cascaded Raman fiber with a long-wavelength fundamental mode cutoff enables efficient multiple Stokes scattering from 1117 to 1480 nm while preventing further unwanted scattering to 1590 nm.
authors.affiliation: OFS Laboratories, 19 Schoolhouse Road, Suite 105, Somerset, New Jersey 08873, USA. jwn@ofsoptics.com
authors.forename: J W
authors.initials: JW
authors.lastname: Nicholson
authors.forename: M F
authors.initials: MF
authors.lastname: Yan
authors.forename: P
authors.initials: P
authors.lastname: Wisk
authors.forename: J
authors.initials: J
authors.lastname: Fleming
authors.forename: F
authors.initials: F
authors.lastname: DiMarcello
authors.forename: E
authors.initials: E
authors.lastname: Monberg
authors.forename: T
authors.initials: T
authors.lastname: Taunay
authors.forename: C
authors.initials: C
authors.lastname: Headley
authors.forename: D J
authors.initials: DJ
authors.lastname: DiGiovanni