This work is devoted to the study how different input laser powers will affect the supercontinuum spectra. At the moment there is not a lot of work on a similar topic and the more so no one with such a good resolution. For the experiment, a pulsed radiation source was used at a wavelength of 780 nm. It is found that an increase in the pump power of the laser leads to a broadening of the spectrum and an increase in the radiation intensity. The rationale for these effects was proposed. In addition, for the first time in the world, measurements were made of a supercontinuum in a photonic crystal fiber with a resolution of 0.6 nm. The results of supercontinuum studies at various powers are presented.