Anouar Rahmouni, Samprity Saha, Oliver T. Slattery, Thomas Gerrits
Optical time-domain reflectometry (OTDR) is one of the most used techniques for nondestructive characterization of optical fiber links. Although conventional OTDR exhibits good performance in classical network applications, photoncounting OTDR (ν-OTDR)
Anouar Rahmouni, Thomas Gerrits, Paulina Kuo, Dileep Reddy, Lijun Ma, Xiao Tang, Oliver T. Slattery
A quantum network will consist of many physically separated nodes connected by quantum communication channels that distribute entanglement between them. Such nodes will require mechanisms for the generation, routing, and measurement of quantum states to
Anouar Rahmouni, Lijun Ma, Xiao Tang, Thomas Gerrits, Lutong Cai, Qing Li, Oliver T. Slattery
Entangled photon sources are fundamental building blocks for quantum communication and quantum networks. Recently, silicon carbide emerged as a promising material for integrated quantum devices since it is CMOS compatible with favorable mechanical
Anouar Rahmouni, Thomas Gerrits, Oliver T. Slattery
The aim of this work is to develop low-cost, portable/rack-mounted, robust, and reliable tools for a quantum network testbed. We report our progress on the development of well-reference prototypes of sources and receivers.
Anouar Rahmouni, Thomas Gerrits, Alan Migdall, Oliver T. Slattery, Ping-Shine Shaw, Joseph P. Rice
We are developing a nearly polarization-independent, low-cost optical trap detector between 1000 nm and 1550 nm for optical power measurements. A NIST-traceable optical power calibration of this trap detector showed a promising result.
Thomas Gerrits, Ivan Burenkov, Ya-Shian Li-Baboud, Anouar Rahmouni, DJ Anand, FNU Hala, Oliver T. Slattery, Abdella Battou, Sergey Polyakov
We show that the Ethernet-based time transfer protocol 'White Rabbit' can synchronize two distant quantum-networked nodes to within 4 ps, enabling HOM interference at >90 % visibility using 17.6 ps FWHM single-photons coexisting with White Rabbit.
Oliver T. Slattery, Xiao Tang, Lijun Ma, Thomas Gerrits, Anouar Rahmouni, Sumit Bhushan
Research in the Quantum Communications and Networking Project in NIST's Information Technology Laboratory (ITL) focuses on developing quantum devices and studying them for use in quantum communications and quantum networking applications. Here, we review
Thomas Gerrits, Alan L. Migdall, Joshua C. Bienfang, John H. Lehman, Sae Woo Nam, Oliver T. Slattery, Jolene D. Splett, Igor Vayshenker, Chih-Ming Wang
We present our measurements of the detection efficiency of free-space and fiber-coupled single- photon detectors at wavelengths near 851 nm and 1533.6 nm. We investigate the spatial uniformity of one free-space-coupled silicon single-photon avalanche diode
Sumit Bhushan, Oliver T. Slattery, Xiao Tang, Lijun Ma
We outline a proposal to realize Electromagnetically Induced Transparency (EIT) with the potential to store Terahertz (THz) optical pulses in Cesium atoms. Such a system, when experimentally realized, has a potential to make Quantum Communication possible
Optical quantum memory is a device that can store the quantum state of photons and retrieve it with high fidelity on demand. The device can be used to enhance performance for many quantum communication systems such as measurement device independent (MDI)
Optical quantum memory is a device that can store the quantum state of photons and retrieve it with high fidelity on demand. Many approaches to quantum memory have been proposed and demonstrated. Quantum memory can be used to enhance performance in many
Oliver T. Slattery, Lijun Ma, Kevin Zong, Xiao Tang
Spontaneous parametric down-conversion (SPDC) in a nonlinear crystal has been a workhorse for the generation of entangled and correlated single-photon pairs used for quantum communications applications for nearly three decades. However, as a naturally
We implement a cascaded interface connecting three essential frequencies for quantum communications including 1540-nm for long-distance transmission, 895-nm for Cesium quantum memory and 369-nm for Ytterbium ion quantum computing applications.
Lijun Ma, Abdella Battou, Xiao Tang, Oliver T. Slattery
The development of Quantum Networks is underway with significant acceleration in in recent years. Meanwhile. quantum scale devices and components such as single photon sources, detectors, memories and interfaces are ever readier to leave the laboratory
In future quantum communication systems, single photons will be required to possess very narrow linewidths and accurate wavelengths for efficient interaction with quantum memories. Spectral characterization of such single photon sources is necessary and
Quantum memory is an essential device for quantum communications systems and quantum computers. An important category of quantum memory, called Optically controlled quantum memory, uses a strong classical beam to control the storage and re-emission of a
Electromagnetically induced transparency (EIT) is a promising approach to implement quantum memory in quantum communication and quantum computing applications. In this paper, following a brief overview of the main approaches to quantum memory, we provide
In future quantum communication systems, single photons, as the information carriers, are required to possess very narrow linewidth and accurate wavelength for an efficient interaction with quantum memories. Spectral characterization of such single photon
Paulina S. Kuo, Thomas Gerrits, Varun B. Verma, Sae Woo Nam, Oliver T. Slattery, Lijun Ma, Xiao Tang
We apply single-photon, fiber-assisted spectroscopy to characterize photon-pair generation with CW pumping. Using this spectrometer, we observe biphoton interference with unequal biphoton arrival times at the beamsplitter.
Oliver T. Slattery, Lijun Ma, Paulina S. Kuo, Xiao Tang
Spontaneous parametric down-conversion (SPDC) is a common method to generate entangled photon pairs for use in quantum communications. The generated single photon linewidth is a critical issue for photon-atom interactions in quantum memory applications. We
Lijun Ma, Oliver T. Slattery, Paulina S. Kuo, Xiao Tang
Quantum memory is a key device in the implementation of quantum repeaters for quantum communications and quantum networks. We demonstrated a quantum memory based on electromagnetically-induced transparency (EIT) in a warm cesium atomic cell. The quantum
Oliver T. Slattery, Paulina S. Kuo, Lijun Ma, Xiao Tang
Quantum repeaters require entangled photon pair sources to connect flying qubits in the telecommunication band and stationary qubits at atomic transition wavelengths and linewidths for quantum memories. We have experimentally implemented a narrow linewidth
Paulina S. Kuo, Jason S. Pelc, Oliver T. Slattery, Lijun Ma, Xiao Tang
We describe the design and application of domain-engineered periodically poled lithium niobate (PPLN) for use as a source of entangled photons and for other tools in quantum information and communications. By specially designing and controlling the PPLN