OPTICAL PATH CHANGEOVER SWITCH

摘要

PURPOSE:To obtain a small-sized high performance optical path changeover switch which is reduced in connection loss by providing a means which moves one or both of two optical waveguide substrates in parallel to its optical waveguide core formation surface. CONSTITUTION:The optical path changeover switch places electromagnets 28 and 29 in selective operation to attract and move an optical waveguide substrate 23 by generated magnetic fields together with soft magnetic bodies 30 and 31. When the electromagnet 28 is placed selectively in operation, the optical waveguide substrate 23 moves until its flank comes into contact with a positioning pin 26 to connect a waveguide core 24c to a waveguide 24a and a waveguide core 24d to a waveguide 24b. When the electromagnet 29 is selected and placed in operation, the optical waveguide 23 moves until its flank comes into contact with a positioning pin 27 to connect waveguide core 24c to a waveguide 24b. When the electromagnet 28 is selected and placed in operation, the optical waveguide cores 24a and 24b formed on an optical waveguide substrate 22 are positioned having their core center axes coincide with waveguide cores 24c and 24d formed on the optical waveguide substrate 23.