Kuo, P.
(2021),
Noncritical phasematching behavior in thin-film lithium niobate frequency converters, Optics Letters, [online], https://doi.org/10.1364/OL.444846, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=933300
(Accessed December 13, 2024)
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Noncritical phasematching behavior in thin-film lithium niobate frequency converters
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We present a study of noncritical phasematching behavior in thin-film, periodically poled lithium niobate (PPLN) waveguides. Noncritical phasematching refers to designing waveguides so that the phasematching is insensitive to variations in waveguide thickness, width, or other parameters. For waveguide thickness (the dimension with greatest nonuniformity due to fabrication), we found that phasematching sensitivity can be minimized but not eliminated. We estimate limits on the acceptable thickness variation and discuss scaling with device length for second-harmonic generation and sum-frequency generation in thin-film PPLN frequency converters.Citation
Optics Letters
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Created December 17, 2021, Updated November 29, 2022