Combined solitons in generalized coupled mode equations of a nonlinear optical Bragg grating

Journal Article · Wed Aug 15 04:00:00 EDT 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.76.023801· OSTI ID:21016026

Alatas, Husin ^[1]

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1. Theoretical Physics Division, Department of Physics, Bogor Agricultural University, Jl. Meranti, Gedung Wing S, Kampus IPB Darmaga, Bogor 16680, Jawa Barat (Indonesia)

We discuss the existence of combined dark and antidark soliton forms or combined solitons in the generalized coupled mode equations of a nonlinear optical Bragg grating. These solitons are not allowed in the conventional coupled mode equations with uniform nonlinearity and exist outside the linear grating band gap. Their related Hamiltonian phase portrait was briefly reported by de Sterke et al. [Phys. Rev. E 54, 1969 (1996)]. The explicit expressions for the corresponding solitons are presented, as well as their bifurcation process. We demonstrate the unstable propagation of perturbed combined solitons with zero velocity by means of direct numerical integration.

• OSTI ID: 21016026
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 76; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BIFURCATION
BRAGG REFLECTION
EQUATIONS
GRATINGS
HAMILTONIANS
NONLINEAR PROBLEMS
SOLITONS