Results 81 to 90 of about 6,712,674 (298)

Investigation of a novel structure for 6PolSK-QPSK modulation

EURASIP Journal on Wireless Communications and Networking, 2017
Benefiting from the high spectrum efficiency and power efficiency, 6PolSK-QPSK (6-ary polarization-shift keying quadrature phase-shift keying) is a promising modulation format in coherent optical communication.
Yupeng Li, Ming Li, Jiawei Han, Tingting Han   +3 more
doaj   +1 more source

Pointlike Material Accumulation and Displacement in Azopolymer Thin Films Driven by Spatial Light Modulation

Advanced Optical Materials, EarlyView.
A maskless, SLM‐driven approach enables the deterministic inscription of arbitrary topographical features in azopolymer films by mapping complex vectorial light fields onto local viscoplastic stress. This platform allows for the rapid generation and dynamic erasure of high‐aspect‐ratio micro‐spikes, offering a versatile tool for reconfigurable flat ...
Jonas Strobelt, Nikolai Liubimtsev, Marina Saphiannikova, Svetlana Santer   +3 more
wiley   +1 more source

Coherent Absorption Reveals Colors Hidden in a Grey Fabry–Pérot Cavity

Advanced Optical Materials, EarlyView.
A dielectric thin film shows colors depending on its thickness; this effect can be used to encode information normally accessible through single‐beam spectroscopy. We developed a method to conceal this kind of information, based on coating the dielectric with a matched conductor, that suppresses the color‐bearing thin‐film resonances.
Giuseppe E. Lio, Giulio Carotta, Lorenzo Lavista, Andrea Camposeo, Giacomo Venturi, Agnese Guernieri, Alessandro Pitanti, Simon A. R. Horsley, Giuseppe C. La Rocca, Alessandro Tredicucci, Simone Zanotto   +10 more
wiley   +1 more source

Recent Progress in Simplified Coherent Technology

Guangtongxin yanjiu
With the increasingly widespread application of optical communication technology in modern social production and life, the application scenarios of optical communication technology are becoming increasingly diverse and challenging.
HU Shan, LI Wei, PAN Yingmei, ZENG Tao, LUO Ming, YU Huang, GUO Hao   +6 more
doaj  

Digital coherent receiver based on parallel optical sampling

, 2022
3 S.We propose a coherent receiver scheme exploiting optical sampling to overcome the speed limitations of electronic analog-to-digital converters. Transmission of 56GBd quadrature phase-shift keying signals over 610km standard single-mode fiber and ...
Molle, L., Fischer, J.K., Leonhardt, C.C., Ludwig, R., Schmidt-Langhorst, C., Matiss, A., Schubert, C.   +6 more
core   +1 more source

Electrochemistry‐Enabled Optical and Plasmonic Programmable Metasurfaces

Advanced Optical Materials, EarlyView.
Electrochemistry is emerging as a promising approach for engineering optical and plasmonic metasurfaces, from the fabrication of nanoscale structures to their dynamic control. This Perspective reviews electrochemical strategies for creating and tuning metasurfaces, examines current challenges and opportunities, and discusses how integration with ...
Charlène Brissaud, Leonardo Scarabelli
wiley   +1 more source

Factors Affecting the Sensitivity of Coherent Detection

Guangtongxin yanjiu
【Objective】Coherent optical communication is a high-speed, high-quality, and highly secure communication method, and coherent detection plays an extremely important role in coherent optical communication.
HAN Meimiao, YANG Gengen, LIANG Jingyuan, KE Xizheng   +3 more
doaj  

Method for compensating the constant component of noise in the reflectogram of a fiber-optic communication line under conditions of insufficient dynamic range of an optical backscatter reflectometer in the time domain

Научно-технический вестник информационных технологий, механики и оптики
A method for compensating for the constant noise component of reflectograms for a coherent optical backscatter reflectometer in the time domain is proposed. The presented solution ensures correct visualization of reflectograms, improves their readability
A. A. Sandrovskii, I. A. Sharkov, M. Yu. Plotnikov, S. A. Ushanov, D. B. Goncharov, E. E. Karpov   +5 more
doaj   +1 more source

Sparse Orthogonal Circulant Transform Multiplexing for Coherent Optical Fiber Communication

IEEE Photonics Journal, 2018
This paper introduces a new multicarrier system, named sparse orthogonal circulant transform multiplexing (S-OCTM), for optical fiber communication. This technique uses an inverse sparse orthogonal circulant transform (S-OCT) matrix, which is simple and ...
Yukui Yu, Wei Wang, Xing Ouyang, Zhenpeng Wang, Jian Zhao   +4 more
doaj   +1 more source

Time-Resolving Quantum Measurement Enables Energy-Efficient, Large-Alphabet Communication

PRX Quantum, 2020
Information exchange requires a measurement of physical states. Because quantum measurements enable accuracy beyond the classical shot-noise limit, they are successfully used to develop measurement tools and applications.
I.A. Burenkov, M.V. Jabir, A. Battou, S.V. Polyakov   +3 more
doaj   +1 more source