  We report the generation of spectrally-tailored supercontinuum using
Fourier-domain pulse shaping of femtosecond pulses injected into a highly
nonlinear fiber controlled by a genetic algorithm. User-selectable spectral
enhancement is demonstrated over the 1550-2000~nm wavelength range, with the
ability to both select a target central wavelength and a target bandwidth in
the range 1--5~nm. The spectral enhancement factor relative to unshaped input
pulses is typically $\sim$5--20 in the range 1550--1800~nm and increases for
longer wavelengths, exceeding a factor of 160 around 2000~nm. We also
demonstrate results where the genetic algorithm is applied to the enhancement
of up to four wavelengths simultaneously.
