Femtosecond pulses at 20 GHz repetition rate through spectral masking of a phase modulated signal and nonlinear pulse compression

B.H. Chapman, A.V. Doronkin, J.M. Stone, J.C. Knight, S.V. Popov, J.R. Taylor

OAI: oai:purehost.bath.ac.uk:publications/574bcbcc-096b-4c8a-8a3d-85e9119dfa65 • DOI: https://doi.org/10.1364/OE.21.005671

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.