Steering of optical beams in strongly nonlocal nonlinear media by spatial phase modulation

Abstract

The basic idea is to impose sinusoidal phase modulation to an optical beam and then make it propagate in a strongly nonlocal nonlinear medium with normalized symmetrical real spatial response.The spatial phase modulation splits the input beam into multiple sub-beams, while the nonlocal nonlinear medium shapes the sub-beams into spatial solitons, whose directions and power can be controlled by changing the modulation parameters/We present numerical results to show how the deflection and the detachment of beams are achieved.