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Journal Article Noise Filtering for Highly Correlated Photon Pairs From Silicon Waveguides
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Authors
Jong-Moo Lee, Wook-Jae Lee, Min-Su Kim, Jung Jin Ju
Issue Date
2019-11
Citation
IEEE/OSA Journal of Lightwave Technology, v.37, no.21, pp.5428-5434
ISSN
0733-8724
Publisher
Optical Society of America (OSA)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1109/JLT.2019.2942436
Abstract
We fabricate silicon waveguide spirals and a ring resonator to generate photon pairs based on a spontaneous four-wave mixing. The coincidence-to-accidental-ratio (CAR) of photon pairs from the silicon waveguides is measured up to 400 after a noise-filtering by using the combination of bandpass filters and pump-rejection filters. The CAR is enhanced up to 700 by adding on-chip pump-rejection MZIs. We observe the CAR of the photon pairs from a silicon spiral is highly depending on the wavelength detuning from the pump wavelength. We discuss the noise sources related to the degradation of the CAR based on our experimental results.
KSP Keywords
Band pass Filter(BPF), Correlated photon, Four-Wave Mixing(Fwm), Noise Sources, Noise filtering, On-chip, Pump wavelength, Rejection filters, Ring Resonator, Silicon waveguide, photon pairs
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
CC BY