20250231460. Optical Wavegu (Nokia Solutions and Networks Oy)
OPTICAL WAVEGUIDE FOR FREQUENCY CONVERSION
Abstract: a photonic chip for optical frequency conversion includes a substrate, and a planar optical waveguide disposed along a surface of the substrate. the optical waveguide has an optical core of periodically-poled thin-film ferroelectric material, the thickness of the optical core varying along the optical waveguide. the width of the optical core varies therealong in a manner correlated with variations of the thickness of the optical core along the optical waveguide, e.g. in a manner complementary to measured variations of the thickness.
Inventor(s): Jie Zhao, Ayed Al Sayem
CPC Classification: G02F1/353 ({Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams})
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