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학술지 Noise Filtering for Highly Correlated Photon Pairs From Silicon Waveguides
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저자
이종무, 이욱재, 김민수, 주정진
발행일
201911
출처
IEEE/OSA Journal of Lightwave Technology, v.37 no.21, pp.5428-5434
ISSN
0733-8724
출판사
Optical Society of America (OSA)
DOI
https://dx.doi.org/10.1109/JLT.2019.2942436
협약과제
17HB1800, 양자 광집적회로 원천기술 연구, 주정진
초록
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 제안 키워드
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