Optical multiplication using a bisected intersecting waveguide |
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| Authors: | Chowdhury A. McCaughan L. |
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| Affiliation: | Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI; |
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| Abstract: | We present an analysis of a bisected intersecting waveguide in periodically poled lithium niobate that can produce and isolate the second-order optical product E(ω1+ω2)~E1(ω1 )E2(ω2) free from the near degenerate second harmonics. Model calculations of such a device fabricated in quasi-phase matched (QPM) LiNbO3 predict a conversion efficiency of ≈1.5%/W, about 15% that of a straight waveguide of the same length, and a crosstalk of ≲-30 dB |
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