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Simulation on fiber-to-waveguide coupling efficiency of Si3N4 grating coupler for quantum nano-photonics

Title
Simulation on fiber-to-waveguide coupling efficiency of Si3N4 grating coupler for quantum nano-photonics
Authors
KIWON, KWONSHIN, HEEDEUK
Date Issued
22-Feb-2019
Publisher
한국광학회
Abstract
Recently, Si3N4 has been investigated as a quantum nano-photonics platform due to its low propagation loss and high refractive index. Light can be efficiently coupled from fiber to Si3N4 waveguide and vice versa using a grating coupler. We perform computational simulations on grating couplers to find the optimum geometric conditions of fiber-to-waveguide coupling efficiency in the telecom wavelength range. According to our simulation, the fiber-to-waveguide coupling efficiency can be more than 60%. Our results would be useful for future quantum optics experiments.
URI
http://oasis.postech.ac.kr/handle/2014.oak/97114
Article Type
Conference
Citation
한국광학회 2019 동계학술대회, 2019-02-22
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 SHIN, HEEDEUK
Dept of Physics
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