US Patent 10429717 Beam steering device and system employing same

A beam steering device and a system employing the same are provided. The beam steering device includes: waveguides provided on a substrate to form channels through which light is transmitted; a modulators provided on the waveguides and configured to change, according to electrical signals, a phase of the light by changing a refractive index of the light which passes through the waveguides; and a driving circuit configured to provide the electrical signals to the modulators to drive the modulators.