Abstract
Dual-pump optical parametrical amplifiers based on photonic crystal fibers have been analytically and numerically investigated to describe gain distribution in this manuscript. Through controlling and optimizing multi-parameters, broadband and flat gain distribution can be obtained as the signal wavelength is nearby 1053nm. The numerical results show that the regular and flat parametric gain zone just like “regular hexagon” can be formed when the pump-signal wavelength detuning is 2nm and the pump power is 4.5W. There are some ripples on the sideband of the central gain zone as the dispersion slope increases. And, the position of the ripples can shift and change under different dispersion slope and fourth order dispersion parameters. It is remarkable that the area of “regular hexagon” will extend to the largest corresponding to the third order dispersion coefficient β3=1×10−41s3m−1.
Published Version
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