title: Femtosecond pulses at 20 GHz repetition rate through spectral masking of a phase modulated signal and nonlinear pulse compression.
abstract: We present a laser system capable of producing 190 femtosecond pulses at a repetition rate of 20 GHz. The spectral masking of a phase modulated diode laser is used to produce a train of picosecond pulses which are compressed using a fibre-grating compressor followed by subsequent adiabatic soliton compression to the femtosecond regime using a tapered photonic crystal fiber.
authors.affiliation: Femtosecond Optics Group, Physics Department, Imperial College, Prince Consort Road, London SW7 2AZ, UK.
authors.forename: B H
authors.initials: BH
authors.lastname: Chapman
authors.forename: A V
authors.initials: AV
authors.lastname: Doronkin
authors.forename: J M
authors.initials: JM
authors.lastname: Stone
authors.forename: J C
authors.initials: JC
authors.lastname: Knight
authors.forename: S V
authors.initials: SV
authors.lastname: Popov
authors.forename: J R
authors.initials: JR
authors.lastname: Taylor