title: Power-controlled phase-matching and instability of CW propagation in multicore optical fibers with a central core.
abstract: We present modulation instability analysis including azimuthal perturbations of steady-state continuous wave (CW) propagation in multicore-fiber configurations with a central core. In systems with a central core, a steady CW evolution regime requires power-controlled phase matching, which offers interesting spatial-division applications. Our results have general applicability and are relevant to a range of physical and engineering systems, including high-power fiber lasers, optical transmission in multicore fiber, and systems of coupled nonlinear waveguides.
authors: A M
authors: AM
authors: Rubenchik
authors: E V
authors: EV
authors: Tkachenko
authors: M P
authors: MP
authors: Fedoruk
authors: S K
authors: SK
authors: Turitsyn