Results 1 to 10 of about 10,651 (253)

Advanced DSP for Coherent Optical Fiber Communication [PDF]

open access: yesApplied 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   +5 more sources

Time Reverse Equalization Algorithm for 16 QAM Coherent Optical Communication Systems

open access: yesIEEE 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   +3 more sources

Overcoming laser phase noise for low-cost coherent optical communication [PDF]

open access: yesNature Communications
Artificial-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

Data Fragmentation Multipath Secure Coherent Optical Communication System Based on Electrical Signal Processing

open access: yesIEEE Photonics Journal, 2022
In this paper, we report a novel optical data fragmentation multipath (ODFM) scheme for coherent optical communication based on electrical signal processing in simulation.
Kunpeng Zhai   +6 more
doaj   +3 more sources

Enabling Technology in High-Baud-Rate Coherent Optical Communication Systems

open access: yesIEEE Access, 2020
High-baud-rate coherent optical system is essential to support the ever-increasing demand for high-speed applications. Owing to the recent progress in advanced modulation formats, over 1 Tb/s single-carrier data transmission has been achieved in the ...
Si-Ao Li   +10 more
doaj   +3 more sources

Alamouti-Type STBC for Atmospheric Optical Communication Using Coherent Detection

open access: yesIEEE Photonics Journal, 2014
Alamouti-type space-time block coding is studied for optical wireless communication systems using coherent detection over atmospheric turbulence channels.
Mingbo Niu   +2 more
doaj   +3 more sources

Coherent optical communications using coherence-cloned Kerr soliton microcombs [PDF]

open access: yesNature Communications, 2022
Kerr frequency combs are a promising laser source for future optical networks. The authors demonstrate coherence-cloning between two remote Kerr combs and improve optical coherent communication in terms of performance, power consumption, and simplicity.
Yong Geng   +8 more
doaj   +4 more sources

Research on DPPM Technology in Coherent Optical Space Laser Communication

open access: yesGuangtongxin 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

Coherent communication with linear optics [PDF]

open access: yesPhysical Review A, 2008
We show how to implement several continuous-variable coherent protocols with linear optics. Noise can accumulate when implementing each coherent protocol with realistic optical devices. Our analysis bounds the level of noise accumulation. We highlight the connection between a coherent channel and a nonlocal quantum nondemolition interaction and give ...
Wilde, Mark M.   +3 more
openaire   +2 more sources

Beam-steering metasurfaces assisted coherent optical wireless multichannel communication system

open access: yesNanophotonics, 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

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