title: Frequency doubling of femtosecond erbium-fiber soliton lasers in periodically poled lithium niobate.
abstract: We report efficient frequency doubling of passively mode-locked femtosecond erbium-fiber lasers. Quasi-phase-matched second-harmonic generation in periodically poled lithium niobate is used to generate 8.1 mW of 190-fs (FWHM), 90-pJ pulses at 777 nm with a conversion efficiency greater than can be obtained with existing birefringently phase-matched nonlinear materials. A dispersion-compensation-free soliton oscillator generating transform-limited 230-fs (FWHM) pulses at 1554 nm is used as a pump laser.
authors.forename: M A
authors.initials: MA
authors.lastname: Arbore
authors.forename: M M
authors.initials: MM
authors.lastname: Fejer
authors.forename: M E
authors.initials: ME
authors.lastname: Fermann
authors.forename: A
authors.initials: A
authors.lastname: Hariharan
authors.forename: A
authors.initials: A
authors.lastname: Galvanauskas
authors.forename: D
authors.initials: D
authors.lastname: Harter