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Periodically-Poled Lithium Niobate

Periodically poled lithium niobate (PPLN) is a lithium niobate crystal that switches polarity in a periodic fashion and is used for achieving quasi-phase-matching in nonlinear optics.

Our Periodically-Poled Lithium Niobate nonlinear crystals allow for efficient conversion of wavelengths in the range from visible to 5 µm. The poling pattern is lithographically defined and highly customizable allowing crystals to be used in a wide range of applications that require wavelength conversion.

Phase-matching over very long propagation lengths at infrared wavelengths is possible with our congruently grown PPLN manufactured from highly uniform Z-axis wafers.

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