Figure 8. Variation of chirp for sech-sech type pulse in the presence of second-order dispersion (β2) only. Figures (a) and (b) show the variation in presence of the quintic terms and figures (c) and (d) show the variation in the absence of the quintic terms

From

Properties of Optical Soliton in a Three Level Medium with Quintic Nonlinearity

Preeti Agarwal, A. Ray, A. Roy Chowdhury

International Journal of Physics. 2015, 3(2), 45-51 doi:10.12691/ijp-3-2-1