| 摘要 |
<p>An acoustooptic device (10) includes a Y-cut and Z-propagation LiNbO3 substrate (12) or 128 DEG -rotating Y-plane LiNbO3 substrate (12), an optical waveguide layer (14) which is formed on at least a part of the LiNbO3 substrate (12) and has a higher light refractive index than the LiNbO3 substrate (12), an interdigital electrode (20) which is formed on the LiNbO3 substrate (12) and generates Rayleigh waves, and a dielectric thin film layer (22) formed on the interdigital electrode (20). <IMAGE> <IMAGE></p> |
