Spectral, temporal, and coherence properties of supercontinuum (SC) generation in a microstructure fiber were experimentally studied with low-peak-power femtosecond pump pulses. By a spectral interferometry approach, the degree of mutual (axial) spectral coherence was observed to be low for solitons with a pump wavelength region close to the zero-dispersion wavelength (ZDW) and was observed to be high for the solitons with a pump wavelength region far from the ZDW. The generation of multiple frequency channels was experimentally demonstrated by dual time-delayed low-peak-power pump pulses near and far from the ZDW for possible application in a wavelength-division-multiplexing network.
© 2005 Optical Society of America
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(060.7140) Fiber optics and optical communications : Ultrafast processes in fibers
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(190.7220) Nonlinear optics : Upconversion
Iosif Zeylikovich, Vladimir Kartazaev, and R. R. Alfano, "Spectral, temporal, and coherence properties of supercontinuum generation in microstructure fiber," J. Opt. Soc. Am. B 22, 1453-1460 (2005)