A DIGITAL OPTICAL SWITCH AND MODULATOR AND A METHOD FOR DIGITAL OPTICAL SWITCHING AND MODULATION

摘要

A digital optical switch and a method for digital optical modulation are disclosed.The digital optical switch is comprised of an optical waveguide having an input controlregion, a connection region, and a separation region, and a generator which generates asmoothly varying electric field in an input control region of said optical waveguide and asubstantially constant electric field in said separation region of said optical waveguide.The optical waveguide may be either an x-shaped optical waveguide or a y-shaped opticalwaveguide.