| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a member with an optical waveguide formed thereon by using an ion exchange method, in which the refractive index distribution on a cross section perpendicular to the optical waveguide, especially, the refractive index distribution in the width direction of the optical waveguide can be controlled so as to be nearly a concentric circle, and to provide its manufacture method. <P>SOLUTION: The member with the optical waveguide is an optical member 1 having a ridge-shaped part functioning as the optical waveguide 2. The ridge-shaped part is constituted so that its refractive index may get larger consecutively or stepwise from the outer surface layer of the ridge-shaped part toward a center part. <P>COPYRIGHT: (C)2004,JPO</p> |
