| 摘要 |
The present application relates to a waveguide-type optical device comprising an impedance matching means for matching impedance of a side of a control signal source supplying a control signal to control propagation of light waves in an optical waveguide of the waveguide-type optical device and impedance of a side of a signal electrode receiving the control signal, wherein this impedance matching means is provided between the side of the control signal source and the side of the signal electrode. A waveguide-type optical device of the present invention overcomes characteristic deterioration caused by un-matching of impedance. Additionally, the present invention can extend the degree of freedom for designing a waveguide-type optical device.
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