| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of an optical path converting optical waveguide in which positioning of waveguides of the optical path converting portions is not required, transmission loss is made low and no variation exists between the waveguides. SOLUTION: A first optical path is formed by illuminating laser light beams in a converging manner onto the inside of a substrate having at least one surface that totally reflects laser light beams with respect to the optical axis of the laser light beams and by linearly moving a converging lens of the laser light beams or the substrate along the direction in parallel with the optical axis prior to the incident onto the substrate. A second optical path is formed by converting the direction of the laser light beams at the total reflection surface and the first and second optical paths that sandwich the reflection surface are continuously formed. COPYRIGHT: (C)2005,JPO&NCIPI |
