[2] [2] Kaplan A E.Multist able self-trapping of light and mult istable soliton pulse propagat ion [J].IEEE J.QuantumElectron.,1985,QE-21(9):1538～1543

[3] [3] Kaplan A E.Bistable solit ons [J].Phys Rev.Lett.,1985,55(12):1291～1294

[4] [4] Enns R H,Rangnekar S S,Kaplan A E.Bist able-soliton pulse propagat ion:st ability aspect s [J].Phys.Rev.A,1987,36(3):1270～1279

[5] [5] Agrawal G P.Nonlinear Fiber Optics [M].Boston:Academic Press,1989.

[6] [6] Enns R H,Kaplan A E."Robust " bistable solit ons of the highly nonlinear Schrodinger equat ion [J].Phys.Rev.A,1987,35(1):466～469

[7] [7] Enns R H.Bist able solit ons and opt ical switching [J].IEEE J.Quantum Electron.,1987,QE-23(7):1199～1204