L. Xu et al., Experimental generation of an ultra-broad spectrum based on induced-phase modulation in a single-mode glass fiber, OPT COMMUN, 162(4-6), 1999, pp. 256-260
An ultra-broad spectrum over the range from 480 to 900 nm is experimentally
generated by induced-phase modulation (IPM) of two 120 fs intense optical
pulses copropagating in a 3-mm single-mode fused-silica fiber for the first
time to our knowledge, The center wavelengths of the two pulses are 640 nm
and 795 nm. respectively. The Fourier transform of this spectrum yields a
transform limited 4 fs optical pulse. This IPM-induced spectrum broadening
method opens the way to monocycle optical pulse generation in the near futu
re, (C) 1999 Elsevier Science B.V, All rights reserved.