| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To perform switching and conversion of optical signals while reducing transmission loss between a plurality of optical waveguides. <P>SOLUTION: A switching region 8 where superposition bonding of an optical signal mode distribution layered at an opposing interval is generated in an optical signal propagation direction is formed at first and second optical waveguides 10 and 11 which are layered on a base substrate 4. An optical waveguide heating layer 9 changing the refractive index of one optical waveguide 11 is formed in the switching region 8 and switching and conversion of the optical signals are performed between the first and the second optical waveguides 10 and 11. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
