Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Applied Physics Letters

Entangled photon pair generation from an InP membrane micro-ring resonator

Rakesh Ranjan Kumar, Marina Raevskaia, Vadim Pogoretskii, Yuqing Jiao, Hon Ki Tsang

Published Jan 14, 2019• 53 citations
Publisher

Abstract

We performed quantum interference measurements using photon pairs generated via cavity enhanced spontaneous four-wave mixing in an indium phosphide membrane micro-ring resonator which was optically pumped by a continuous-wave laser. The internal generation rate was estimated to be as high as 70 kHz at a coupled input power of 0.022 mW, and a two-photon quantum interference raw visibility of 78.4 ± 2% was observed.

DOI
10.1063/1.5080397

Related papers

Influence of Nonlinear Losses on Spontaneous Four Wave Mixing in InP Membrane Micro-ring Resonator

Rakesh Ranjan Kumar, Ming Shiann Feng, Marina Raevskaia +3 more

We experimentally study spontaneous four wave mixing in micro-ring resonator on an InP membrane in a continuous regime. The generation rate of single photons from spontaneous four wave mixing is limited by the reduction in loaded Q-factor of the micro-ring resonators at higher power.

IEEE Photonics Conference•Sep 1, 2018•1 citation

Time-bin entangled photon pair generation from Si micro-ring resonator

Ryota Wakabayashi, Mikio Fujiwara, Ken-ichiro Yoshino +3 more

We demonstrate time-bin entanglement generation in telecom wavelength using a 7 μm radius Si micro-ring resonator pumped by a continuous wave laser. The resonator structure can enhance spontaneous four wave mixing, leading to a photon pair generation rate of about 90-100 Hz with a laser pump power of as low as -3.92 dBm (0.41 mW). We succeed in observing time-bin entanglement with the visibility over 92%. Moreover, wavelength-tunability of the entangled photon pair is demonstrated by changing the operation temperature.

arXiv:1501.05687•Optics Express•Jan 16, 2015•109 citations

InP membrane micro-ring resonator for generating heralded single photons

Rakesh Ranjan Kumar, Marina Raevskaia, Vadim Pogoretskii +2 more

Abstract In this paper, we experimentally verify the antibunching properties of multiple single photons located at distinct optical modes in a quantum frequency comb generated by cavity-enhanced spontaneous four-wave mixing in an InP membrane micro-ring resonator. The experimentally measured single photon conditional self-correlation parameter g H 2 0 = 0.08 ± 0.008 , well below the classical regime (0.5) with the corresponding detector corrected Klyshko efficiency η k of 3%–4.2%.

Journal of Optics•Sep 27, 2019•8 citations

Photon Pair Generation in an Amorphous Silicon Micro-ring Resonator

Elizabeth Hemsley, Damien Bonneau, Gary F. Sinclair +12 more

The high Kerr coefficient of amorphous silicon makes it a promising material for generating photons on chip via spontaneous four wave mixing (SFWM), for applications in quantum photonics. Previous work shows high photon generation rates in a-Si waveguides, [1], and here we expand this study to investigate micro-ring resonator photon sources, which have a small footprint and can produce photons with high spectral purity, ideal for quantum interference. We compare SFWM generation rates in an a-Si micro-ring resonator to a straight waveguide, in both continuous wave and pulsed pump regimes.

European Quantum Electronics Conference (EQEC)•Jun 21, 2015•0 citations

Ultra-low power generation of twin photons in a compact silicon ring resonator

Stefano Azzini, Davide Grassani, Michael John Strain +6 more

We demonstrate efficient generation of correlated photon pairs by spontaneous four wave mixing in a 5 μm radius silicon ring resonator in the telecom band around 1550 nm. By optically pumping our device with a 200 μW continuous wave laser, we obtain a pair generation rate of 0.2 MHz and demonstrate photon time correlations with a coincidence-to-accidental ratio as high as 250. The results are in good agreement with theoretical predictions and show the potential of silicon micro-ring resonators as room temperature sources for integrated quantum optics applications.

arXiv:1209.2099•Optics Express•Sep 24, 2012•224 citations

Discrete Frequency Entangled Photon Pair Generation Based on Silicon Micro-ring Cavities

Jing Suo, Wei Zhang, Shuai Dong +2 more

In this paper, we propose and demonstrate a scheme to generate discrete frequency entangled photon pairs based on a silicon micro-ring resonator. The resonator is placed in a Sagnac fiber loop. Stimulated by two pump lights at two different resonance wavelengths of the resonator, photon pairs at another two resonance wavelengths are generated along two opposite directions in the fiber loop, by the nondegenerate spontaneous four wave mixing in the resonator. Their states are superposed and interfered at the output ports of the fiber loop to generate frequency entangled photon pairs. On the other hand, since the pump lights come from two continuous wave lasers, energy-time entanglement is an intrinsic property of the generated photon pairs. The entanglements on frequency and energy-time are demonstrated experimentally by the experiments of spatial quantum beating and Franson-type interference, respectively, showing that the silicon micro-ring resonators are ideal candidates to realize complex photonic quantum state generation.

Journal of the Physical Society of Japan•Sep 5, 2016•5 citations
We performed quantum interference measurements using photon pairs generated via cavity enhanced spontaneous four-wave mixing in an indium phosphide membrane micro-ring resonator which was optically pumped by a continuous-wave laser. The internal generation rate was estimated to be as high as 70 kHz at a coupled input power of 0.022 mW, and a two-photon quantum interference raw visibility of 78.4 ± 2% was observed.
We demonstrate time-bin entanglement generation in telecom wavelength using a 7 μm radius Si micro-ring resonator pumped by a continuous wave laser. The resonator structure can enhance spontaneous four wave mixing, leading to a photon pair generation rate of about 90-100 Hz with a laser pump power of as low as -3.92 dBm (0.41 mW). We succeed in observing time-bin entanglement with the visibility over 92%. Moreover, wavelength-tunability of the entangled photon pair is demonstrated by changing the operation temperature.
The high Kerr coefficient of amorphous silicon makes it a promising material for generating photons on chip via spontaneous four wave mixing (SFWM), for applications in quantum photonics. Previous work shows high photon generation rates in a-Si waveguides, [1], and here we expand this study to investigate micro-ring resonator photon sources, which have a small footprint and can produce photons with high spectral purity, ideal for quantum interference. We compare SFWM generation rates in an a-Si micro-ring resonator to a straight waveguide, in both continuous wave and pulsed pump regimes.
We demonstrate efficient generation of correlated photon pairs by spontaneous four wave mixing in a 5 μm radius silicon ring resonator in the telecom band around 1550 nm. By optically pumping our device with a 200 μW continuous wave laser, we obtain a pair generation rate of 0.2 MHz and demonstrate photon time correlations with a coincidence-to-accidental ratio as high as 250. The results are in good agreement with theoretical predictions and show the potential of silicon micro-ring resonators as room temperature sources for integrated quantum optics applications.
In this paper, we propose and demonstrate a scheme to generate discrete frequency entangled photon pairs based on a silicon micro-ring resonator. The resonator is placed in a Sagnac fiber loop. Stimulated by two pump lights at two different resonance wavelengths of the resonator, photon pairs at another two resonance wavelengths are generated along two opposite directions in the fiber loop, by the nondegenerate spontaneous four wave mixing in the resonator. Their states are superposed and interfered at the output ports of the fiber loop to generate frequency entangled photon pairs. On the other hand, since the pump lights come from two continuous wave lasers, energy-time entanglement is an intrinsic property of the generated photon pairs. The entanglements on frequency and energy-time are demonstrated experimentally by the experiments of spatial quantum beating and Franson-type interference, respectively, showing that the silicon micro-ring resonators are ideal candidates to realize complex photonic quantum state generation.