[OPTICAL REVIEW Vol. 17, No. 4 (2010) 375-378]
© 2010 The Japan Society of Applied Physics

Evanescent-Wave-Coupled Optical Light Beam Deflector with Symmetrical Structure

Hideaki OKAYAMA1,2*

1RISE, Waseda University, Shinjuku, Tokyo 169-8555, Japan
2Research & Development Center, Oki Electric Industry Co., Ltd., Warabi, Saitama 335-8510, Japan

(Received April 7, 2010; Accepted April 23, 2010)

We purpose a waveguide optical deflector using a Y-branch waveguide coupled to a slab waveguide via gaps between them. Narrow stripe electrodes placed on the Y-branch waveguide enables a fast deflection. A symmetrical light beam with low side lobes is generated by a simple structure.

Key words: optical waveguide, deflector, waveguide branch, slab waveguide

*E-mail address: okayama575@oki.com