Tailoring of silicon nitride waveguide with ultra-flat and ultra-wide dispersion

Yinglu Zhang; Jinsong Xia

doi:10.1117/12.2500657

24 July 2018 Tailoring of silicon nitride waveguide with ultra-flat and ultra-wide dispersion

Yinglu Zhang, Jinsong Xia

Author Affiliations +

Proceedings Volume 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018); 108272W (2018) https://doi.org/10.1117/12.2500657
Event: Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 2018, Shanghai, China

Abstract

A four-layered composite silicon nitride waveguide with an asymmetric horizontal slot is proposed. The waveguide exhibits an ultra-flat and low dispersion with four zero dispersion wavelengths over an ultra-wide bandwidth. In the wavelength range from 1269 nm to 2556 nm, the dispersion varies between -3.27 and 3.29 ps/nm/km. Dispersion tailoring is studied by tuning structural parameters of the composite waveguide. Nonlinear coefficient and phasematching condition in four-wave mixing process are explored, which confirm the proposed waveguide is promising in nonlinear applications.

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Yinglu Zhang and Jinsong Xia "Tailoring of silicon nitride waveguide with ultra-flat and ultra-wide dispersion", Proc. SPIE 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 108272W (24 July 2018); https://doi.org/10.1117/12.2500657

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KEYWORDS

Dispersion

Waveguides

Silicon

Composites

Nonlinear optics

Four wave mixing

Frequency combs

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