상세정보
학술지
Noise Filtering for Highly Correlated Photon Pairs From Silicon Waveguides
- 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)
- 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