%0 Journal Article
%A Abrardi, L.
%A Martín López, Sonia
%A Carrasco-Sanz, A.
%A Rodríguez Barrios, Félix
%A Corredera, Pedro
%A Hernanz, M.L.
%A González Herráez, Miguel
%T Experimental study on the role of chromatic dispersion in continuous-wave supercontinuum generation
%D 2009
%@ 0733-8724
%U http://hdl.handle.net/10017/28497
%X The influence of chromatic dispersion on CW-pumped
supercontinuum generation in km-long standard fibers
is experimentally investigated. We perform our study by
means of a tunable, high-power fiber ring laser pumping
a dispersion-shifted fiber in the wavelength range of
small and medium anomalous dispersion. Our results
show that, at low input powers, chromatic dispersion
plays a dominant role on nonlinear pump spectral
broadening, giving rise to a broader spectrum when
pumping just above the zero-dispersion wavelength of
the fiber. At higher input powers, however, the width of
the generated supercontinuum spectrum is mostly due
to the Raman effect, hence more independent of the
value of the chromatic dispersion coefficient. We show
that, in this case, the optimum pumping wavelengths
for supercontinuum generation are not so close to the
zero-dispersion wavelength of the fiber as in the previous
case. In these conditions, as the chromatic dispersion
grows we can obtain square-shaped and high-power
density spectra, which seem extremely promising for
applications in optical coherence tomography.
%K Nonlinear optics
%K Supercontinuum
%K Chromatic dispersion
%K Dispersive waves
%K Soliton self-frequency shift
%K Electrónica
%K Electronics
%~ Biblioteca Universidad de Alcala