| 摘要 |
PROBLEM TO BE SOLVED: To obtain a method for giving fault tolerance and redundancy to an optical switch matrix. SOLUTION: This fault tolerance type optical switch 70 includes multiple crossing waveguide segments 14, 16, 18, 22, 24, 26, 28, and 32, multiple intersection switch elements 12, an additional row 60 of optical switch points 17 of a 1st type, an additional column of optical switch points 17 of the 1st type, and an optical reflector 51 positioned at the intersection of the additional row 60 and additional column 50 of the optical switch points 17 of the 1st type. |
