OPTICAL ELEMENT WITH INTEGRATED LIGHT DEFLECTOR, AND WAVELENGTH TUNABLE EXTERNAL CAVITY LASER USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an optical element with an integrated light deflector with which a light direction is deflected without requiring a complicated external driving circuit.

SOLUTION: A manual waveguide having the light deflector integrated therewith is equipped with cladding regions 301, 304, an optical waveguide core 302 and the light deflector 303. A propagation direction of light waveguided to the optical waveguide core 302 is varied in passing of the light through the light deflector 303. The light deflector 303 is formed by patterning a part of the upper cladding layer on the upper side of a specified region of the optical waveguide core 302 in a predetermined shape and deflects the propagation direction of the advancing light by modifying the refractive index of the core 302 on the lower side of the predetermined shape in accordance with a current or an electric field applied to the light deflector 303.

COPYRIGHT: (C)2005,JPO&NCIPI