| 摘要 |
PURPOSE:To contrive the miniaturization and simplification of a device, and to reduce cost, by moving plural pieces of parallelogram prisms fixed closely through an optical filter for allowing the light of a specific wavelength area to transmit through or reflecting it. CONSTITUTION:By constituting an optical switch having plural pieces of parallelogram prisms 13a, 13b fixed closely through an optical filter 14 for allowing the light of a specific wavelength area to transmit through or reflecting it, and a driving part 15 for moving the parallelogram prisms 13a, 13b, an optical multiplexer/demultiplexer and the optical switch for formed integrally. Accordingly, the number of components for constituting a terminal can be reduced. In such a way, the device can be miniaturized, simplified and reduced in cost, and the reliability can be improved. |
