Abstract
A high-resolution beam steering technique was proposed with a slow-light Bragg reflector waveguide amplifier. By tuning the wavelength of the propagating slow-light mode, a giant change in a deflection angle is predicted and high-resolution beam steering is prospective. In this paper, the first experimental demonstration of the beam steering technique is presented. We demonstrated a continuous beam steering of over 30°. The deflection angles are in good agreement with simulation results. By injecting larger current, the effective radiation window length is increased and sharp divergence angle is obtained, exhibiting a potential in getting a large number of resolution points.
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