Optical functional device and optical integrated device

Details Optical functional device and optical integrated device Optical functional device and optical integrated device

2005-02-08

2005-02-08

Bovernick, Rodney (Department: 2874)

Optical waveguides

Integrated optical circuit

C385S039000

Reexamination Certificate

active

06853760

ABSTRACT:
On a waveguide34formed on a substrate33, a plurality of comblike shaped electrodes37, 38that generate surface acoustic waves37a,38afrom different directions are provided. And a periodic refractive indices portion40is formed, where the refractive indices are periodically distributed in accordance with the wavelengths of the surface acoustic waves37a,38agenerated by applying a voltage to the comblike shaped electrodes37, 38. And by changing a frequency of the applying voltage for sequentially changing the wavelengths of the surface acoustic waves37a,38a,the exiting direction of the light exiting from the periodic refractive indices portion40is scanned. This makes it possible to provide an optical functional device and an optical scanning apparatus that perform light scanning less costly but at a high speed, and that can secure a wide scanning angle.

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