| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical function element which attains optical integration and cost reduction. SOLUTION: The optical function element 100 provided with two pieces of optical waveguides 10, 20 different in an equivalent index from each other, and a coupling part 5 for coupling the two pieces of optical waveguides 10, 20 along the optical axis direction. COPYRIGHT: (C)2004,JPO&NCIPI |
