The present invention provides a method for forming an optical waveguide characterized by applying a paste containing a copper compound to a glass substrate containing an alkali metal as a glass component over the whole surface thereof or in a patterned form, and performing heat treatment at a temperature lower than the softening temperature of the glass substrate. <??>The method of the invention can produce an optical waveguide without the need for a high vacuum as in the thin film deposition method and without the use of a molten salt, and is capable of dispersing Cu<+> ions selectively in a glass substrate with excellent controllability. <IMAGE>
申请公布号
EP1457794(A4)
申请公布日期
2006.09.06
申请号
EP20020788755
申请日期
2002.12.09
申请人
ISUZU GLASS CO., LTD.;NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCEAND TECHNOLOGY