Results 41 to 50 of about 5,337,605 (357)
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
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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
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Recent Advances in Coherent Optical Communications for Short-Reach: Phase Retrieval Methods
Photonics, 2023 Short-reach transmission systems traditionally utilize intensity modulation (IM) at the transmitter and direct detection (DD) at the receiver due to their cost-effectiveness, small footprint, and low power consumption.
Abdullah S. Karar +4 more
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Coherent and Noncoherent Detection CPFSK
IEEE Transactions on Communications, 1974 Continuous phase frequency shift keying (CPFSK) is potentially an attractive modulation scheme for use on channels whose performance is limited by thermal noise. In this paper results for the performance available with CPFSK are given for coherent detection and noncoherent detection with arbitrary modulation indices and arbitrary observation intervals.
Osborne, William P., Luntz, Michael B.
openaire +2 more sources
Randomness quantification of coherent detection [PDF]
Physical Review A, 2018 Continuous-variable quantum cryptographic systems, including random number generation and key distribution, are often based on coherent detection. The essence of the security analysis lies in the randomness quantification. Previous analyses employ a semi-
Hongyi Zhou +3 more
semanticscholar +1 more source
Semi-Coherent Detection and Performance Analysis for Ambient Backscatter System [PDF]
IEEE Transactions on Communications, 2016 We study a novel communication technique, ambient backscatter, that utilizes radio frequency signals transmitted from an ambient source as both energy supply and information carrier to enable communications between low-power devices.
Jing Qian +4 more
semanticscholar +1 more source
Coherent optical binary polarisation shift keying heterodyne system in the free-space optical turbulence channel [PDF]
, 2011 In this paper, analytical and simulation results for the bit error rate (BER) performance and fading penalty of a coherent optical binary polarization shift keying (2PolSK) heterodyne system adopted for a free space optical (FSO) communication link ...
Z. Ghassemlooy +12 more
core +1 more source
Capturing the amplitude and phase profile of the vortex beam based on coherent detection
Frontiers in Physics, 2022 In this study, we propose a scheme to capture the amplitude and phase profile of the orbital angular momentum (OAM) beam based on coherent detection. In the scheme, the OAM beam to be measured is interfered with a local plain wave which is prepared at ...
Shengmei Zhao +3 more
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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
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Coherent scatterers detection: application over glacier terrain using TerraSAR-X time series data
, 2011 This paper investigates the detection of Coherent Scatterers (CSs) in ice and glacier terrain by means of TerraSAR-X time series data in the test site of the Helheim Glacier in Greenland.
Maria J. Sanjuan-Ferrer +5 more
core +1 more source