title: 1.5 mum single longitudinal mode waveguide laser fabricated by femtosecond laser writing.
abstract: A compact and efficient single longitudinal mode laser based on a femtosecond laser written waveguide is demonstrated. A maximum output power exceeding 50 mW was measured in single longitudinal and transverse mode operation, with 21% slope efficiency. The active waveguide was fabricated on erbium-ytterbium-doped phosphate glass by direct writing with femtosecond laser pulses from a diode-pumped cavity-dumped oscillator.
authors.forename: G
authors.initials: G
authors.lastname: Della Valle
authors.forename: S
authors.initials: S
authors.lastname: Taccheo
authors.forename: R
authors.initials: R
authors.lastname: Osellame
authors.forename: A
authors.initials: A
authors.lastname: Festa
authors.forename: G
authors.initials: G
authors.lastname: Cerullo
authors.forename: P
authors.initials: P
authors.lastname: Laporta