| 摘要 |
PROBLEM TO BE SOLVED: To realize an optical switch of small and compact 1×4 type. SOLUTION: The intermediate parts of two movable optical fibers 21a, 21b are fixed on the board 9 by a fixed block 12. Two movable blocks 13, 14 of a soft magnetic material are attached to both the tip parts of the movable optical fibers. A fixed block 10 of a soft magnetic material which can fix one optical fiber oppositely to the movable block 13 and a fixed block 11 of a soft magnetic material which can fix four optical fibers oppositely to the movable block 14 are placed on a board. Two movable blocks can be moved independently by actuators 15, 16 with respect to the fixed blocks. Besides, the position of two movable blocks can be detected by using detection electrodes 18, 23 with respect to the fixed blocks. |
