42 citations · 127 across the 8 of their papers we have counts for
6 papers · 1 filter
Modulational instability in -symmetric Bragg grating structures with saturable nonlinearity
K. Tamilselvan, A. Govindarajan, I. Inbavalli +2
We investigate the nontrivial characteristics of modulational instability (MI) in a system of Bragg gratings with saturable nonlinearity. We also introduce an equal amount of gain…
Reviving Modulational Instability with Third-Order Dispersion
K. Tamilselvan, A. Govindarajan, T. Kanna +2
It is well-known that third-order dispersion (TOD) never allows the continuous wave of any nonlinear Schroedinger (NLS) type system to experience modulational instability (MI). Rem…
On the integrability aspects of nonparaxial nonlinear Schrödinger equation and the dynamics of solitary waves
K. Tamilselvan, T. Kanna, A. Govindarajan
The integrability nature of a nonparaxial nonlinear Schrödinger (NNLS) equation, describing the propagation of ultra-broad nonparaxial beams in a planar optical waveguide, is studi…
Cubic-quintic nonlinear Helmholtz equation: Modulational instability, chirped elliptic and solitary waves
K. Tamilselvan, T. Kanna, A. Govindarajan
We study the formation and propagation of chirped elliptic and solitary waves in cubic-quintic nonlinear Helmholtz (CQNLH) equation. This system describes nonparaxial pulse propaga…
Nonparaxial elliptic waves and solitary waves in coupled nonlinear Helmholtz equations
K. Tamilselvan, T. Kanna, Avinash Khare
We obtain a class of elliptic wave solutions of coupled nonlinear Helmholtz (CNLH) equations describing nonparaxial ultra-broad beam propagation in nonlinear Kerr-like media, in te…
General multicomponent Yajima-Oikawa system: Painlevé analysis, soliton solutions, and energy-sharing collisions
T. Kanna, K. Sakkaravarthi, K. Tamilselvan
We consider the multicomponent Yajima-Oikawa (YO) system and show that the two-component YO system can be derived in a physical setting of three-coupled nonlinear Schrödinger (3-CN…