A5089011124- Advanced Optical Sensing Technologies
- Quantum Information and Cryptography
- Random lasers and scattering media
- Ocular and Laser Science Research
- Optical Coherence Tomography Applications
- Mechanical and Optical Resonators
- Advanced Fiber Laser Technologies
- Quantum optics and atomic interactions
- Photonic and Optical Devices
- Quantum Computing Algorithms and Architecture
- Laser-Matter Interactions and Applications
- Spectroscopy Techniques in Biomedical and Chemical Research
- Optical Network Technologies
- Advanced Photonic Communication Systems
- Quantum Mechanics and Applications
- Optical and Acousto-Optic Technologies
- Photoacoustic and Ultrasonic Imaging
The University of Sydney
2023
University of Toronto
2019-2023
In order to enhance LIDAR performance metrics such as target detection sensitivity, noise resilience and ranging accuracy, we exploit the strong temporal correlation within photon pairs generated in continuous-wave pumped semiconductor waveguides. The enhancement attained through use of non-classical sources is measured compared a corresponding scheme based on simple photon-counting detection. performances both schemes are quantified by estimation uncertainty Fisher information probe...
Entanglement and correlation of quantum light can enhance LiDAR sensitivity in the presence strong background noise. However, power such sources is fundamentally limited to a stream single photons cannot compete with detection range high-power classical transmitters. To circumvent this, we develop demonstrate quantum-inspired prototype based on coherent measurement time-frequency correlation. This system uses source maintains high noise rejection advantage LiDARs. In particular, show that it...
Non-local effects have the potential to radically move forward quantum enhanced imaging provide an advantage over classical not only in laboratory environments but practical implementation. In this work, we demonstrate a 43dB higher signal-to-noise ratio (SNR) using LiDAR based on time-frequency entanglement compared with phase-insensitive system. Our system can tolerate more than 3 orders of magnitude noise single-photon counting systems before detector saturation dead time 25ns. To achieve...
We report parametric gain by utilizing $ χ^{(2)} non-linearities in a semiconductor Bragg Reflection Waveguide (BRW) waveguide chip. Under the two-mode degenerate type II phase matching, it can be shown that more than 18 dBs of for both TE and TM modes is tenable 100s micrometers device length. Polarization insensitive attained within 1550 nm region spectrum. These AlGaAs BRW waveguides exhibit sub-photon per pulse sensitivity. This sharp contrast to other types devices which utilize χ^{(3)}...
The detection of objects in the presence significant background noise is a problem fundamental interest sensing. In this work, we theoretically analyze prototype target protocol, quantum temporal correlation (QTC) which implemented work utilizing spontaneous parametric down-converted photon-pair sources. QTC protocol only requires time-resolved photon-counting detection, phase-insensitive and therefore suitable for optical detection. As comparison to also consider classical based on...
We demonstrate and analyze how deploying non-classical intensity correlations obtained from a monolithic semiconductor quantum photon source can enhance classical target detection systems. This is demonstrated by examining the advantages offered utilization of in correlation based protocol. experimentally that under same condition, contrast protocol when are utilized exhibits an improvement up to 17.79dB over best correlation-based protocol, 29.69dB channel loss excess noise 13.40dB stronger...
In this article, we demonstrate theoretically and experimentally how one can exploit correlations generated in monolithic semiconductor quantum light sources to enhance the performance of optical target detection. A prototype detection protocol, time-correlation (QTC) with spontaneous parametric down-converted photon-pair sources, is discussed. The QTC protocol only requires time-resolved photon-counting detection, which phase-insensitive therefore suitable for As a comparison also consider...
Entanglement and correlation of quantum light can enhance LiDAR sensitivity in the presence strong background noise. However, power such sources is fundamentally limited to a stream single photons cannot compete with detection range high-power classical transmitters. To circumvent this, we develop demonstrate quantum-inspired prototype based on coherent measurement time-frequency correlations. This system uses source maintains high noise rejection advantage LiDARs. In particular, show that...
Abstract We consider the quantum ranging problem in low noise level per mode and reflectivity (high loss) regime. focus on single photon transmission strategies propose a novel approach that combines high dimensional time-bin entanglement at transmitter with carefully constructed sequential decision rule detector. Our analytical results establish significant performance gains can be leveraged from this range of operating parameters, as compared to classical approach, two-mode squeezed vacuum...
We demonstrate 26.3dB performance enhancement of phase-insensitive target detection and ranging resolution ' 5cm using continuous-wave photon pairs. The receiver operating characteristic analysis shows a detection-time reduction 57 for fixed false- positive (10 − 6 ) rates.
We report a novel method to simultaneously measure the time difference and frequency sum of two photons. This technique applied target detection can asymptotically reduce effect environmental noise down zero.