Results 1 to 10 of about 6,712,674 (298)
Overcoming laser phase noise for low-cost coherent optical communication [PDF]
Nature CommunicationsArtificial-intelligence-generated content has driven explosive data traffic growth in data-center interconnects. Traditional direct detection solutions struggle with limited spectral efficiency and distance, prompting the shift to coherent optics for ...
Xiansong Fang +6 more
doaj +2 more sources
Research on DPPM Technology in Coherent Optical Space Laser Communication
Guangtongxin yanjiu, 2022 Aiming at the modulation problem of high energy efficiency and high sensitivity in the space laser communication system, the Differential Pulse Position Modulation (DPPM) format is studied and applied to the coherent optical communication system.
Xi WANG, Jie LI, Ming LUO
doaj +3 more sources
Time Reverse Equalization Algorithm for 16 QAM Coherent Optical Communication Systems
IEEE Access, 2021 The high speed rotation of state of polarization (RSOP) is a key issue for 16 quadrature amplitude modulation (QAM) coherent optical polarization division multiplexing (PDM) communication systems in strong lightning weather. To reduce the bit error rate (
Junxiong Zhang, Weimin Wu, Xiaohu Ge
doaj +1 more source
Beam-steering metasurfaces assisted coherent optical wireless multichannel communication system
Nanophotonics, 2023 The metasurface based beam-steering devices with the advantages of large steering angles, arbitrary channels and ultra-compactness have played an important role for data allocation and exchange in the optical wireless communication.
Tao Jin +13 more
doaj +1 more source
Smart Self-Coherent Optical Communication for Short Distances
Frontiers in Communications and Networks, 2022 We proposed and investigated a high-performance, energy-efficient, and low-cost self-homodyne coherent detection transmission (SHCDT) system for the 5G access network segment assuring high capacity and light digital signal processing (DSP) at the same ...
Pantea Nadimi Goki +4 more
doaj +1 more source
High-speed Digital Signal Processing Technologies for Real-time Coherent Optical Communications [PDF]
ITM Web of ConferencesOver the past few years, internet traffic has exploded, and that's pushed optical fiber communication systems to handle more speed and capacity than ever.
Zhu Qihan
doaj +1 more source
The Enabling Technologies, Challenges, and Future Trends of DSP in Coherent Optical Communications [PDF]
ITM Web of ConferencesAgainst the backdrop of the global digital wave, optical fiber communication serves as a core underpinning for the development of big data, artificial intelligence and other key fields.
Guo Qinyao, He Siyuan
doaj +1 more source
Binary Communication with Gazeau–Klauder Coherent States
Entropy, 2020 We investigate advantages and disadvantages of using Gazeau−Klauder coherent states for optical communication. In this short paper we show that using an alphabet consisting of coherent Gazeau−Klauder states related to a Kerr-type nonlinear ...
Jerzy Dajka, Jerzy Łuczka
doaj +1 more source
Sensors, 2023 In free-space optical (FSO) communication systems, on–off keying (OOK) is a widely used modulation format. Coherent and non-coherent OOK receivers with sensitivities of −54.60 dBm and −51.25 dBm, respectively, were built with a communication rate of 1 ...
Weijie Ren +3 more
doaj +1 more source
Non-Orthogonality Measure for a Collection of Pure Quantum States
Entropy, 2022 Modern optical communication technology can realize a large-scale multilevel (or M-ary) optical signal. Investigating the quantum mechanical nature of such a large-scale M-ary optical signal is essential for a unified understanding of quantum information
Kentaro Kato
doaj +1 more source