IEEE Photonics Journal, 2017 We demonstrate an ultra-dense wavelength-division-multiplexing (UDWDM) passive optical network (PON) in a spatial-division-multiplexing system utilizing our home-made seven-core multicore fiber (MCF) with a self-homodyne coherent detection (SHCD) scheme.
Chunxiao Xiong +9 more
doaj +1 more source
Coherent and Squeezed Vacuum Light Interferometry: Parity detection hits the Heisenberg limit [PDF]
, 2010 The interference between coherent and squeezed vacuum light can produce path entangled states with very high fidelities. We show that the phase sensitivity of the above interferometric scheme with parity detection saturates the quantum Cramer-Rao bound ...
Gerry C C +5 more
core +3 more sources
Detecting and estimating coherence based on coherence witnesses [PDF]
Physical Review A, 2021 Quantum coherence has wide-ranging applications from quantum thermodynamics to quantum metrology, quantum channel discrimination and even quantum biology. Thus, detecting and quantifying coherence are two fundamental problems in quantum resource theory.
Zhao Ma +4 more
openaire +2 more sources
Advanced DSP for Coherent Optical Fiber Communication
Applied Sciences, 2019 In this paper, we provide an overview of recent progress on advanced digital signal processing (DSP) techniques for high-capacity long-haul coherent optical fiber transmission systems.
Jian Zhao, Yaping Liu, Tianhua Xu
doaj +1 more source
Efficient Quantum Computation using Coherent States [PDF]
, 2001 Universal quantum computation using optical coherent states is studied. A teleportation scheme for a coherent-state qubit is developed and applied to gate operations. This scheme is shown to be robust to detection inefficiency.Comment: 6 pages, 5 figures,
B. Yurke +16 more
core +2 more sources
Performance Analysis of Coherent and Noncoherent Modulation Under I/Q Imbalance Effects
IEEE Access, 2021 In this paper, we investigate the effects of in-phase/quadrature-phase imbalance (IQI) on the performance of different modulation schemes under multipath fading channels.
Bassant Selim +6 more
doaj +1 more source
Boson sampling with displaced single-photon Fock states versus single-photon-added coherent states---The quantum-classical divide and computational-complexity transitions in linear optics [PDF]
, 2015 Boson sampling is a specific quantum computation, which is likely hard to implement efficiently on a classical computer. The task is to sample the output photon number distribution of a linear optical interferometric network, which is fed with single ...
Dowling, Jonathan P. +4 more
core +1 more source
Doppler Wind Lidar From UV to NIR: A Review With Case Study Examples
Frontiers in Remote Sensing, 2022 Doppler wind lidar (DWL) uses the optical Doppler effect to measure atmospheric wind speed with high spatial-temporal resolution and long detection range and has been widely applied in scientific research and engineering applications.
Mingjia Shangguan +7 more
doaj +1 more source
On blind searches for noise dominated signals: a loosely coherent approach [PDF]
, 2010 We introduce a ‘loosely coherent’ method for detection of continuous gravitational waves that bridges the gap between semi-coherent and purely coherent methods.
Dergachev, V.
core +1 more source
On the Performance of Coherent OFDM Systems in Free-Space Optical Communications
IEEE Photonics Journal, 2015 This paper presents a new model of a coherent orthogonal frequency division multiplexing free space optical communication (OFDM-FSO) system that can be tuned with the virtual local oscillator, under the Gamma-Gamma atmospheric turbulence channel, not ...
Yi Wang, Deli Wang, Jing Ma
doaj +1 more source