Generation of high-power multiple-octave supercontinuum from fan-out periodically poled lithium niobate

Lin, Han; Huang, Jiayu; Guo, Chunyu; Wang, Jintao; Yang, Junbo; Yan, Peiguang

doi:10.1016/j.jlumin.2022.119371

Cited by 2 publications

(1 citation statement)

References 31 publications

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“…Successful implementation of quasi-phase-matching (QPM) has been achieved in ferroelectric crystals such as lithium niobate (LiNbO 3 ), lithium tantalate (LiTaO 3 ), and potassium titanyl phosphate (KTiOPO 4 ). [1][2][3][4][5][6] The most common and reliable method for obtaining PP crystals is the electric field poling technique, which involves creating a desired pattern on the crystal surface using lithography and applying a strong electric field. As a result, stable periodically poled domains (gratings) are formed, creating a medium where effective nonlinearity periodically changes sign.…”

Section: Introductionmentioning

confidence: 99%

Non-destructive quality evaluation of periodically poled MgO:PPLN and Rb:PPKTP crystals based on parametric light generation

Banys,

Pimpe,

Balachninaite

et al. 2023

Novel Optical Systems, Methods, and Applications XXVI

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We present a flexible and automated technique to evaluate the quality of periodically poled crystals throughout their entire volume. By translating the crystal perpendicular to the pump laser beam and recording the parametric signal conversion efficiency simultaneously, we were able to quantitatively describe the homogeneity of the ferroelectric domain structure in periodically poled lithium niobate (MgO:PPLN) and potassium titanyl phosphate (Rb:PPKTP) crystals. This analysis included crystals with single, multi, and fan-out grating designs. Such evaluation is non-destructive, achieves precise control and resolution, and provides a practical assessment of the overall efficiency of the quasi-phase-matched device.

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