We present a theoretical study of temporal and spectral characteristics and pulse compression in hollow waveguides, using a global approach to dispersion without application of the slowly varying envelope approximation. A novel ultrawide self-phase modulation–induced spectral-broadening regime with spectra covering almost 3 octaves is predicted for a pressure at which the group-velocity dispersion parameter is small and anomalous. Compression to subcycle pulses by an appropriate broadband modulator and pulse shortening without chirp control by a spectral filter are studied.
© 2001 Optical Society of America
[Optical Society of America ]
A. V. Husakou, V. P. Kalosha, and J. Herrmann, "Supercontinuum generation and pulse compression in hollow waveguides," Opt. Lett. 26, 1022-1024 (2001)