Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takashi Yoshino0
Date of Patent
April 26, 2011
0Patent Application Number
124342070
Date Filed
May 1, 2009
0Patent Primary Examiner
Patent abstract
A voltage is applied on an interdigitated electrode provided on one main face of a single-domain ferroelectric single crystal substrate to form a periodic domain inversion structure. The interdigitated electrode is then removed. The optical waveguide is then formed in the substrate. An optical intensity center P1 of the optical waveguide is kept away from a location P0 of the end of the interdigitated electrode.
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