title: Soliton self-frequency shift in highly nonlinear fiber with extension by external Raman pumping.
abstract: A completely fiber-integrated, wavelength-tunable subpicosecond pulse source is demonstrated using the soliton self-frequency shift in highly nonlinear dispersion-shifted fiber from a 1.56-microm 10-GHz 400-fs signal. Solitons as short as 100 fs are obtained at tunable wavelengths as high as 1.72 microm. Raman gain from an external pump is used to extend the soliton self-frequency shift to longer wavelengths.
authors.affiliation: Femtosecond Optics Group, Department of Physics, Imperial College London, Prince Consort Road, London SW7 2BW, UK. david.chestnut@imperial.ac.uk
authors.forename: D A
authors.initials: DA
authors.lastname: Chestnut
authors.forename: J R
authors.initials: JR
authors.lastname: Taylor