| 摘要 |
An optical switch allowing easy alignment of a cut portion with a pressurizing member pressurizing a waveguide accommodating sheet, an optical waveguide device, are obtained. The optical switch includes a cut portion formed by cutting in the waveguide accommodating sheet from one surface thereof, a contact member at least on that side of the waveguide accommodating sheet which is opposite to the cutting side, having a fixed portion fixed in the vicinity of the cut portion and a pressurizing portion positioned to be continuous with the fixed portion and two-dimensionally overlap the cut portion, and a piezoelectric actuator positioned such that the pressurizing portion is sandwiched between the actuator and the waveguide accommodating sheet, thereby moving to press the pressurizing portion against the waveguide accommodating sheet and to disengage the pressurizing portion from the waveguide accommodating sheet.
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