An agile beam control for optical phased array wherein a great multiplicity of substantially identical wave guides are employed, each of which comprises a plurality of electrodes along the length thereof, and wherein electrical voltages are applied to such electrodes in a predetermined pattern so as...http://www.google.es/patents/US4764738?utm_source=gb-gplus-sharePatente US4764738 - Agile beam control of optical phased array
