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Method of determining quasi-phase matching efficiency in periodically poled structure of optical waveguide, periodically poled structure of optical waveguide, and optical waveguide using the same
Method of determining quasi-phase matching efficiency in periodically poled structure of optical waveguide, periodically poled structure of optical waveguide, and optical waveguide using the same
The present invention relates to a method of determining a quasi-phase matching efficiency in a periodically poled structure of an optical waveguide, a periodically poled structure of an optical waveguide, and an optical waveguide using the same. It is possible to effectively perform a quasi-phase matching when a width of periodic electrodes is shorter than a coherence length generally used as ½ of a quasi-phase matching period.
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