| 摘要 |
PURPOSE:To easily connect light emitting elements which differ in output wavelength and light receiving elements which have a selecting function for light reception wavelength by making multiple connections between the light emitting elements and light receiving elements by a closed space means. CONSTITUTION:The closed space means 1 makes the multiple connections between the light emitting elements 21-2n and light receiving elements 31-3n and light outputs from the light emitting elements 21-2n are passed only through the closed space means 1 and reflected in the closed space to reach the light receiving elements 31-3n. The light emission sides, therefore, only emit light into the closed space means 1 and the light reception sides only select and receive light having desired wavelength among light beams which arrive by reflection, so precise positioning is not necessary. Consequently, the optical cross-connection device which easily connect the light emitting elements 21-2n and light receiving elements 31-3n can be obtained. |
