Results 51 to 60 of about 307,428 (330)

Modeling of Nonlinear Interference in the Same- Wavelength Bidirectional Coherent Fiber Communication Systems

IEEE Photonics Journal, 2023
A detailed theoretical study is conducted on the nonlinear interference in the same-wavelength bidirectional coherent optical fiber communication systems.
Yuan Li, Chengcheng Wu, Peili He, Wei Li, Shaohua Yu, Ming Luo, Zhongshuai Feng, Muyang Mei, Qianggao Hu, Liyan Huang, Haitao Li   +10 more
doaj   +1 more source

On capacity of optical communications over a lossy bosonic channel with a receiver employing the most general coherent electro-optic feedback control [PDF]

, 2017
We study the problem of designing optical receivers to discriminate between multiple coherent states using coherent processing receivers---i.e., one that uses arbitrary coherent feedback control and quantum-noise-limited direct detection---which was ...
Chung, Hye Won, Guha, Saikat, Zheng, Lizhong   +2 more
core   +2 more sources

Quantum Repeaters using Coherent-State Communication

, 2008
We investigate quantum repeater protocols based upon atomic qubit-entanglement distribution through optical coherent-state communication. Various measurement schemes for an optical mode entangled with two spatially separated atomic qubits are considered ...
D. Dieks, H. Jeong, Kae Nemoto, Norbert Lütkenhaus, Peter van Loock, W. J. Munro, Wolfgang P. Schleich   +6 more
core   +1 more source

Control and single-shot readout of an ion embedded in a nanophotonic cavity [PDF]

, 2020
Distributing entanglement over long distances using optical networks is an intriguing macroscopic quantum phenomenon with applications in quantum systems for advanced computing and secure communication. Building quantum networks requires scalable quantum
Bartholomew, John G., Faraon, Andrei, Huan, Yan Qi, Kindem, Jonathan M., Rochman, Jake, Ruskuc, Andrei   +5 more
core  

Generation and Transmission of High Symbol Rate Single Carrier Electronically Time-Division Multiplexing Signals

IEEE Photonics Journal, 2016
We experimentally investigate the generation and transmission of high-symbol-rate single-carrier signals based on the electronically time-division multiplexing (ETDM) method.
Junwen Zhang, Jianjun Yu
doaj   +1 more source

Optical continuous-variable qubit

, 2010
In a new branch of quantum computing, information is encoded into coherent states, the primary carriers of optical communication. To exploit it, quantum bits of these coherent states are needed, but it is notoriously hard to make superpositions of such ...
Hayasaka, Kazuhiro, Neergaard-Nielsen, Jonas S., Sasaki, Masahide, Takahashi, Hiroki, Takeoka, Masahiro, Takeuchi, Makoto, Wakui, Kentaro   +6 more
core   +1 more source

Research on the Impact of Atmospheric Turbulence on Coherent Detection Performance of Space Coherent Optical Communication

Acta Physica Sinica
Space coherent optical communication technology is considered a significant approach for overcoming the current bottleneck in high-speed space communication; yet, atmospheric turbulence severely restricts its implementation. This paper first investigated
Liu Yu-Tao, Xu Miao, Fu Xing-Hu, Fu Guang-Wei   +3 more
semanticscholar   +1 more source

Application of AdamSPGD algorithm to sensor-less adaptive optics in coherent free-space optical communication system.

Optics Express, 2022
Sensor-less adaptive optics based on stochastic parallel gradient descent (SPGD) is effective for the compensation of atmospheric disturbances in coherent free-space optical communication systems.
Heng Zhang, Li Xu, Yong-fei Guo, Jingtai Cao, Wei Liu, Leqiang Yang   +5 more
semanticscholar   +1 more source

Phase conjugation of twisted Gaussian Schell model beams in stimulated down-conversion

Nanophotonics, 2021
Stimulated parametric down-conversion is a nonlinear optical process that can be used for phase conjugation and frequency conversion of an optical field.
dos Santos Gustavo H., de Oliveira Andre G., Rubiano da Silva Nara, Cañas Gustavo, Gómez Esteban S., Joshi Stuti, Ismail Yaseera, Souto Ribeiro Paulo H., Walborn Stephen Patrick   +8 more
doaj   +1 more source

Coherent Optical OFDM With Index Modulation for Long-Haul Transmission in Optical Communication Systems

IEEE Access, 2022
In this paper, it is proposed to enhance coherent optical orthogonal frequency-division multiplexing (OFDM) system by using index modulation in terms of bit error rate (BER) and spectral efficiency for different levels of the fiber nonlinearity.
Ahmet Guner
doaj   +1 more source