Fig. 1. Distribution area of focus points under two conditions. (a) 4C±1/d≥2; (b) 4C±1/d≤－2

Fig. 2. Transmission evolution of symmetric Airy pulses under different initial chirp parameter values (d＝9, a＝0.05, A₀＝1). (a) C＝0.3; (b) C＝0.4167; (c) C＝0.5; (d) C＝0.5834; (e) C＝0.7; (f) C＝0.8

Fig. 3. Focus position changes with the chirp parameter (d＝1, a＝0.05, A₀＝1). (a) C>0; (b) C<0

Fig. 4. Transmission evolution of symmetric Airy pulses under different d values when C is 0.4, 0.5, and 0.6 (a＝0.05, A₀＝1). (a)(d)(g) d＝2; (b)(e)(h) d＝6; (c)(f)(i) d＝10

Fig. 5. Evolution of symmetric Airy pulses under different truncation parameter values (A₀＝1). (a)(b)(c) C＝0.5, d＝9; (d)(e)(f) C＝0.5834, d＝9; (g)(h)(i) C＝0.6, d＝9

Fig. 6. Transmission evolution of symmetric Airy pulses under different Kerr nonlinearities (a＝0.05, A₀＝2). (a)(b)(c)(d) C＝0.5, d＝8; (e)(f)(g)(h) C＝0.5834, d＝9; (i)(j)(k)(l) C＝0.6, d＝8

Fig. 7. Peak power evolution of pulse (a＝0.05, A₀＝2). (a) C＝0.5, d＝8; (b) C＝0.5834, d＝9; (c) C＝0.6, d＝9