Generation of frequency-degenerate photon pairs in a bidirectionally pumped silicon micro-ring resonator

Haoran Ma; Li'ao Ye; Fanjie Ruan; Maohui Li; Yuehai Wang; Jianyi Yang

doi:10.1117/12.3003997

21 December 2023 Generation of frequency-degenerate photon pairs in a bidirectionally pumped silicon micro-ring resonator

Haoran Ma, Li'ao Ye, Fanjie Ruan, Maohui Li, Yuehai Wang, Jianyi Yang

Author Affiliations +

Proceedings Volume 12966, AOPC 2023: AI in Optics and Photonics ; 1296606 (2023) https://doi.org/10.1117/12.3003997
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China

Abstract

Integrated silicon micro-ring resonator (MRR) has been widely used as on-chip single photon source. In this paper, we introduce an approach to generate frequency-degenerate photons by bidirectionally pumping an add-drop micro-ring resonator (MRR) within a Sagnac loop configuration. This scheme facilitates the concurrent generation of photon pairs from both clockwise (CW) and counterclockwise (CCW) directions, transforming a single MRR into a dual-source system. Through CMOS fabrication techniques, we realized the proposed device and conducted measurements of key parameters including the single side count rate (SSCR), coincidence count rate (CCR), and coincidence-to-accidental coincidence ratio (CAR) for both directional outputs. Notably, the CCRs exhibit remarkable similarity between the two sources, reaching approximately 550 Hz at an waveguide power of 0.59 mW. Furthermore, we observed a differential CAR, with the CCW direction yielding a lower value compared to the CW direction, with estimated maxima of 161 and 387, respectively. These findings underscore the viability of utilizing a singular MRR as a dual-source entity. Additionally, we outline the design of an on-chip structure for heralded Hong-Ou-Mandel (HOM) interference, necessitating 4-fold coincidences.Our work holds the promise of advancing the realm of large-scale integrated quantum photonic chips.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Haoran Ma, Li'ao Ye, Fanjie Ruan, Maohui Li, Yuehai Wang, and Jianyi Yang "Generation of frequency-degenerate photon pairs in a bidirectionally pumped silicon micro-ring resonator", Proc. SPIE 12966, AOPC 2023: AI in Optics and Photonics , 1296606 (21 December 2023); https://doi.org/10.1117/12.3003997

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KEYWORDS

Resonators

Microresonators

Microrings

Waveguides

Silicon

Design and modelling

Quantum chips

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