Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takashi Yoshino0
Date of Patent
December 15, 2009
0Patent Application Number
120382080
Date Filed
February 27, 2008
0Patent Primary Examiner
Patent abstract
A wavelength conversion device is provided having a ridge optical waveguide and a periodic domain inversion structure formed in the waveguide. The optical waveguide has side wall faces, an upper face and edge areas formed between the upper face and the side wall face, respectively. R-faces are formed on the edge areas.
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