Results 31 to 40 of about 423,477 (202)

Performance Analysis of Space-to-Ground Downlink for Polarization Shift Keying Optical Communications with a Gaussian-Schell Model Beam

Photonics
Free-space optical communication has emerged as a pivotal technology for space-to-ground downlinks; however, signal degradation caused by atmospheric turbulence continues to pose a significant challenge.
Jiajie Wu, Yuwei Zhang, Qingyan Li, Siyuan Yu, Jianjie Yu   +4 more
doaj   +1 more source

Topology Control of Low-Connection UAV Laser Network with Virtual Nodes

Applied Sciences
Space laser communication technology has advantages such as high bandwidth and low interference, but the limitation of the load capacity of an unmanned aerial vehicle (UAV) makes it difficult for UAV clusters to have sufficient communication links to ...
Pengyu Wang, Qingkui Li, Junkai Yi
doaj   +1 more source

Recent Progress in Distributed Fiber Acoustic Sensing with Φ-OTDR

Sensors, 2020
Distributed fiber acoustic sensing (DAS) technology can continuously spatially detect disturbances along the sensing fiber over long distance in real time.
Zhaoyong Wang, Bin Lu, Qing Ye, Haiwen Cai   +3 more
doaj   +1 more source

Site survey for optimum location of Optical Communication Experimental Facility [PDF]

, 1968
Site survey was made to determine the optimum location for an Optical Communication Experimental Facility /OCEF/ and to recommend several sites, graded according to preference.

core   +1 more source

Long-distance quantum communication with atomic ensembles and linear optics [PDF]

, 2001
Quantum communication holds a promise for absolutely secure transmission of secret messages and faithful transfer of unknown quantum states. Photonic channels appear to be very attractive for physical implementation of quantum communication. However, due
A Ekert, A Kuzmich, A Kuzmich, C Cabrillo, C Liu, CH Bennett, CH Bennett, CJ Hood, D Bouwmeester, D Budker, DF Phillips, E Knill, E Knill, H-J Briegel, HK Lo, J Hald, J Preskill, J Ye, J-F Roch, J. I. Cirac, JF Clauser, JI Cirac, JW Pan, L.-M. Duan, LM Duan, M Zukowski, M. D. Lukin, MD Lukin, MG Raymer, P. Zoller, PW Shor, PWH Pinkse, S Bose, SJ Enk   +33 more
core   +2 more sources

Faint Echo Extraction from ALB Waveforms Using a Point Cloud Semantic Segmentation Model

Remote Sensing, 2023
As an active remote sensing technology, airborne LIDAR can work at all times while emitting specific wavelengths of laser light that can penetrate seawater.
Yifan Huang, Yan He, Xiaolei Zhu, Jiayong Yu, Yongqiang Chen   +4 more
doaj   +1 more source

Laser radio transmitter

, 2019
Since the days of Hertz, radio transmitters have evolved from rudimentary circuits emitting around 50 MHz to modern ubiquitous Wi-Fi devices operating at gigahertz radio bands.
Belyanin, Alexey, Capasso, Federico, Chevalier, Paul, Connors, Michael K., McNulty, Daniel, Piccardo, Marco, Rubin, Noah A., Schwarz, Benedikt, Tamagnone, Michele, Wang, Christine A., Wang, Yongrui   +10 more
core   +2 more sources

A Balanced Dual-Intracavity Dual-Mode Interlocking Method for Fiber Laser Self-Reference Wavelength Stabilization

IEEE Photonics Journal
The laser frequency stabilization technology is very important in the development of laser applications, and the improvement of this technology has tend to further expectations for portability and low cost, in addition to the realization of strict ...
Liuxin Zhang, Kang Ying, Guochao Wang, Haoyang Pi, Zhaoyong Wang, Yanguang Sun, Fang Wei, Youzhen Gui, Qing Ye, Haiwen Cai   +9 more
doaj   +1 more source

Fiber distributed feedback laser [PDF]

, 1976
Utilizing round optical fibers as communication channels in optical communication networks presents the problem of obtaining a high efficiency coupling between the optical fiber and the laser. A laser is made an integral part of the optical fiber channel
Elachi, C., Evans, G. A., Yeh, C.
core   +1 more source

Suppression of Intensity Fluctuations in Free Space High-Speed Optical Communication Based on Spectral Encoding of a Partially Coherent Beam [PDF]

, 2007
A new concept of a free-space, high-speed (Gbps) optical communication system based on spectral encoding of radiation from a broadband pulsed laser is developed.
Berman, Gennady P., Bishop, Alan R., Chernobrod, Boris M., Gorshkov, Vyacheslav N., Nguyen, Dinh C.   +4 more
core   +2 more sources