Coherent detection of pulsed terahertz waves in solid, gaseous, and liquid media [PDF]
Fundamental ResearchCoherent detection measures both the amplitude and phase of pulsed terahertz (THz) waves simultaneously, forming the foundation for THz time-domain spectroscopy (THz-TDS).
X -C Zhang, Liangliang Zhang
exaly +3 more sources
Asymmetric self-coherent detection
Optics Express, 2021 The bandwidth upgrade required in short-reach optical communications has prompted the need for detection schemes that combine field reconstruction with a cost-effective subsystem architecture. Here we propose an asymmetric self-coherent detection (ASCD) scheme for the field reconstruction of self-coherent (SC) complex double-sideband (DSB) signals ...
Xueyang Li +5 more
openaire +3 more sources
Performance Improvement of LoRa Modulation With Signal Combining and Semi-Coherent Detection [PDF]
IEEE Communications Letters, 2021 In this letter, we investigate performance improvements of low-power long-range (LoRa) modulation when a gateway is equipped with multiple antennas. We derive the optimal decision rules for both coherent and non-coherent detections when combining signals
Ha H Nguyen, Ebrahim Bedeer
exaly +2 more sources
On-chip coherent detection with quantum limited sensitivity. [PDF]
Sci Rep, 2017 While single photon detectors provide superior intensity sensitivity, spectral resolution is usually lost after the detection event. Yet for applications in low signal infrared spectroscopy recovering information about the photon’s frequency ...
Kovalyuk V +12 more
europepmc +2 more sources
Joint Coherent/Non-Coherent Detection for Distributed Massive MIMO: Enabling Cooperation Under Mixed Channel State Information [PDF]
SensorsBeyond-5G wireless systems increasingly rely on distributed massive multiple-input multiple-output (MIMO) architectures to achieve high spectral efficiency, low latency, and wide coverage.
Supuni Gunasekara +3 more
doaj +2 more sources
Photonic super-resolution millimeter-wave joint radar-communication system using self-coherent detection. [PDF]
Optics Letters, 2022 A millimeter-wave (MMW) joint radar-communication (JRC) system with super-resolution is proposed and experimentally demonstrated, using optical heterodyne upconversion and self-coherent detection downconversion techniques.
Wenlin Bai +6 more
semanticscholar +1 more source
An All-Digital Optical Phase-Locked Loop Suitable for Satellite Downlinks
Photonics, 2023 The optical signal propagation used in satellite uplinks and downlinks is influenced by absorption, scattering, and changes in the atmospheric refractive index or turbulence, causing optical signal attenuation.
Jognes Panasiewicz +4 more
doaj +1 more source
Integrated Components and Solutions for High-Speed Short-Reach Data Transmission
Photonics, 2021 According to different transmission distances, application scenarios of a data center mainly include intra- and inter-data center optical interconnects.
Lin Jiang +7 more
doaj +1 more source
Use of optical coherent detection for environmental sensing
European Conference on Optical Communication, 2022 We discuss the use of the full transmission matrix extracted from a standard coherent receiver to improve the environmental sensing capabilities of optical fiber links.
A. Mecozzi +6 more
semanticscholar +1 more source
Analog Coherent Detection for Energy Efficient Intra-Data Center Links at 200 Gbps Per Wavelength
Journal of Lightwave Technology, 2021 As datacenters continue to scale in size, energy efficiency for short reach (
T. Hirokawa +17 more
semanticscholar +1 more source