474 citations · 877 across the 27 of their papers we have counts for
28 papers
Simultaneous amplitude and phase spectroscopy using two-photon interference
Kyle M. Jordan, Yingwen Zhang, Frédéric Bouchard +5
Quantum spectroscopy seeks to probe chemical systems using nonclassical light, which has properties that are qualitatively and quantitatively different than conventional light sour…
Broadband spectral manipulation of single photons using cross-phase modulation
Kate L. Fenwick, Frédéric Bouchard, Guillaume Thekkadath +3
Manipulating the frequency and bandwidth of light is crucial in classical and quantum applications including communication, spectroscopy, imaging, and signal processing. Such capab…
Imaging at the quantum limit with convolutional neural networks
Andrew H. Proppe, Aaron Z. Goldberg, Guillaume Thekkadath +8
Deep neural networks have been shown to achieve exceptional performance for computer vision tasks like image recognition, segmentation, and reconstruction or denoising. Here, we ev…
Ultrafast all-optical modulation of spatially structured photons
Alicia Sit, Frédéric Bouchard, Nicolas Couture +4
Manipulating the structure of single photons in the ultrafast domain is enabling new quantum information processing technologies. At the picosecond timescale, quantum information c…
Ultrafast switching of telecom photon-number states
Kate L. Fenwick, Frédéric Bouchard, Alicia Sit +7
A crucial component of photonic quantum information processing platforms is the ability to modulate, route, convert, and switch quantum states of light noiselessly with low inserti…
Terahertz electro-optic modulation of single photons
Nicolas Couture, Frédéric Bouchard, Alicia Sit +4
The manipulation of visible and near-infrared light at the single-photon level plays a key role in quantum communication systems where information is encoded into photonic degrees…
Quantum enhanced beam tracking surpassing the Heisenberg uncertainty limit
Yingwen Zhang, Duncan England, Noah Lupu-Gladstein +5
Determining a beam's full trajectory requires tracking both its position and momentum (angular) information. However, the product of position and momentum uncertainty in a simultan…
Multiphoton interference in a single-spatial-mode quantum walk
Kate L. Fenwick, Jonathan Baker, Guillaume S. Thekkadath +6
Multiphoton interference is crucial to many photonic quantum technologies. In particular, interference forms the basis of optical quantum information processing platforms and can l…
Gain-induced group delay in spontaneous parametric down-conversion
Guillaume Thekkadath, Martin Houde, Duncan England +4
Strongly-driven nonlinear optical processes such as spontaneous parametric down-conversion and spontaneous four-wave mixing can produce multiphoton nonclassical beams of light whic…
Programmable Photonic Quantum Circuits with Ultrafast Time-bin Encoding
Frédéric Bouchard, Kate Fenwick, Kent Bonsma-Fisher +4
We propose a quantum information processing platform that utilizes the ultrafast time-bin encoding of photons. This approach offers a pathway to scalability by leveraging the inher…
Photonic quantum walk with ultrafast time-bin encoding
Kate L. Fenwick, Frédéric Bouchard, Duncan England +3
The quantum walk (QW) has proven to be a valuable testbed for fundamental inquiries in quantum technology applications such as quantum simulation and quantum search algorithms. Man…
3D-2D Neural Nets for Phase Retrieval in Noisy Interferometric Imaging
Andrew H. Proppe, Guillaume Thekkadath, Duncan England +4
In recent years, neural networks have been used to solve phase retrieval problems in imaging with superior accuracy and speed than traditional techniques, especially in the presenc…
Storage of telecom wavelength heralded single photons in a fiber cavity quantum memory
K. A. G. Bonsma-Fisher, R. Tannous, D. Poitras +5
We demonstrate the storage and retrieval of heralded single photons in a fiber-based cavity quantum memory. The photons are stored, and retrieved, from the memory using quantum fre…
Toward deterministic sources: Photon generation in a fiber-cavity quantum memory
Philip J. Bustard, Ramy Tannous, Kent Bonsma-Fisher +5
We demonstrate the generation of photons within a fiber-cavity quantum memory, followed by later on-demand readout. Signal photons are generated by spontaneous four-wave mixing in…
Ultrafast Measurement of Energy-Time Entanglement with an Optical Kerr Shutter
Andrew R. Cameron, Kate L. Fenwick, Sandra W. L. Cheng +6
Recent experimental progress in quantum optics has enabled measurement of single photons on ultrafast timescales, beyond the resolution limit of single photon detectors. The energy…
A fiber-integrated quantum memory for telecom light
K. A. G. Bonsma-Fisher, C. Hnatovsky, D. Grobnic +4
We demonstrate the storage and on-demand retrieval of single-photon-level telecom pulses in a fiber cavity. The cavity is formed by fiber Bragg gratings at either end of a single-m…
Measuring ultrafast time-bin qudits
Frédéric Bouchard, Kent Bonsma-Fisher, Khabat Heshami +3
Time-bin qudits have emerged as a promising encoding platform in many quantum photonic applications. However, the requirement for efficient single-shot measurement of time-bin qudi…
Ultratunable quantum frequency conversion in photonic crystal fiber
K. A. G. Bonsma-Fisher, P. J. Bustard, C. Parry +4
Quantum frequency conversion of single photons between wavelength bands is a key enabler to realizing widespread quantum networks. We demonstrate the quantum frequency conversion o…
Toward a Quantum Memory in a Fiber Cavity Controlled by Intracavity Frequency Translation
Philip J. Bustard, Kent Bonsma-Fisher, Cyril Hnatovsky +4
We propose a quantum memory protocol based on trapping photons in a fiber-integrated cavity, comprised of a birefringent fiber with dichroic reflective end facets. Photons are swit…
Quantum communication with ultrafast time-bin qubits
Frédéric Bouchard, Duncan England, Philip J. Bustard +2
The photonic temporal degree of freedom is one of the most promising platforms for quantum communication over fiber networks and free-space channels. In particular, time-bin states…
Achieving ultimate noise tolerance in quantum communication
Frédéric Bouchard, Duncan England, Philip J. Bustard +4
At the fundamental level, quantum communication is ultimately limited by noise. For instance, quantum signals cannot be amplified without the introduction of noise in the amplified…
Time-bin to Polarization Conversion of Ultrafast Photonic Qubits
Connor Kupchak, Philip J. Bustard, Khabat Heshami +4
The encoding of quantum information in photonic time-bin qubits is apt for long distance quantum communication schemes. In practice, due to technical constraints such as detector r…
Storage of polarization-entangled THz-bandwidth photons in a diamond quantum memory
Kent A. G. Fisher, Duncan G. England, Jean-Philippe W. MacLean +4
Bulk diamond phonons have been shown to be a versatile platform for the generation, storage, and manipulation of high-bandwidth quantum states of light. Here we demonstrate a diamo…
Quantum memories: emerging applications and recent advances
Khabat Heshami, Duncan G. England, Peter C. Humphreys +4
Quantum light-matter interfaces are at the heart of photonic quantum technologies. Quantum memories for photons, where non-classical states of photons are mapped onto stationary ma…