Spontaneous parametric down‐conversion sources for multiphoton experiments

C Zhang, YF Huang, BH Liu, CF Li… - Advanced Quantum …, 2021 - Wiley Online Library
Entangled photon sources are desirable and key elements for photonic quantum information
processing. The spontaneous parametric down‐conversion (SPDC) process is a convenient …

Joint spectral characterization of photon-pair sources

K Zielnicki, K Garay-Palmett… - Journal of Modern …, 2018 - Taylor & Francis
The ability to determine the joint spectral properties of photon pairs produced by the
processes of spontaneous parametric downconversion (SPDC) and spontaneous four-wave …

High-performance quantum entanglement generation via cascaded second-order nonlinear processes

Z Zhang, C Yuan, S Shen, H Yu, R Zhang… - npj Quantum …, 2021 - nature.com
In this paper, we demonstrate the generation of high-performance entangled photon-pairs in
different degrees of freedom from a single piece of fiber pigtailed periodically poled LiNbO3 …

InP-based single-photon detectors and Geiger-mode APD arrays for quantum communications applications

X Jiang, M Itzler, K O'Donnell… - IEEE journal of …, 2014 - ieeexplore.ieee.org
To meet the increasing demand from quantum communications and other photon starved
applications, we have developed various InP-based single-photon detectors, including …

Efficient and pure femtosecond-pulse-length source of polarization-entangled photons

MM Weston, HM Chrzanowski, S Wollmann… - Optics express, 2016 - opg.optica.org
We present a source of polarization entangled photon pairs based on spontaneous
parametric downconversion engineered for frequency uncorrelated telecom photon …

Spectral correlation measurements at the Hong-Ou-Mandel interference dip

T Gerrits, F Marsili, VB Verma, LK Shalm, M Shaw… - Physical Review A, 2015 - APS
We present an efficient tool capable of measuring the spectral correlations between photons
emerging from a Hong-Ou-Mandel interferometer. We show that for our spectrally …

Photonic-reconfigurable entanglement distribution network based on silicon quantum photonics

D Liu, J Liu, X Ren, X Feng, F Liu, K Cui… - Photonics …, 2023 - opg.optica.org
The entanglement distribution network connects remote users by sharing entanglement
resources, which is essential for realizing quantum internet. We propose a photonic …

Pulsed Sagnac polarization-entangled photon source with a PPKTP crystal at telecom wavelength

RB Jin, R Shimizu, K Wakui, M Fujiwara… - Optics …, 2014 - opg.optica.org
We demonstrate pulsed polarization-entangled photons generated from a periodically poled
KTiOPO_4 (PPKTP) crystal in a Sagnac interferometer configuration at telecom wavelength …

Theoretical investigation of a spectrally pure-state generation from isomorphs of KDP crystal at near-infrared and telecom wavelengths

RB Jin, N Cai, Y Huang, XY Hao, S Wang, F Li… - Physical Review …, 2019 - APS
A spectrally uncorrelated biphoton state generated from the spontaneous nonlinear optical
process is an important resource for quantum information. Currently, such a spectrally …

Reducing detection noise of a photon pair in a dispersive medium by controlling its spectral entanglement

K Sedziak, M Lasota, P Kolenderski - Optica, 2017 - opg.optica.org
Chromatic dispersion is one of the main limitations to the security of quantum
communication protocols that rely on the transmission of single photons in single-mode …