| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical switch which separately outputs a light subjected to wavelength multiplexing. SOLUTION: This optical switch has an interference filter 3, which is arranged in a groove 2 which intersects with optical waveguides 14a, 14b and guides the light in different directions according to the wavelengths of the lights, makes a matching oil 25 which is filled in the groove 2 by a micropump 20 to flow, thereby moves the interference filter 3 to the position on the optical path of the optical waveguide 14a and the position which is withdrawn from the optical path of the optical waveguide 14a and switches the advancing direction of the light, which passes through the optical guide 14a; therein, positioning parts 24a, 24b, which position the stop position of the interference filter 3, are formed by making the width of one part of the groove 2 narrow. |
