| 摘要 |
A clad having material showing a magnetic resistance effect is formed on a substrate and a PLZT core is formed on the clad. The core is patterned in a Y shape and an input side optical waveguide and output side optical waveguides are formed of the clad and the core. Coils are placed on the output side optical waveguides and an intensity of light, which propagates through an optical waveguide, is controlled by a magnetic field generated by these coils to switch an optical signal.
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