Results 21 to 30 of about 7,636,336 (303)

Free Space Optics: Current Applications and Future Challenges

open access: yesInternational Journal of Optics, 2015
FSO is a communication system where free space acts as medium between transceivers and they should be in LOS for successful transmission of optical signal. Medium can be air, outer space, or vacuum.
Aditi Malik, Preeti Singh
doaj   +1 more source

Turbulence Characterization of a Free Space Optical Communication Link for High Performance Adaptive Optics Control

open access: yes, 2022
International audienceOptimal control has been shown to improve astronomical adaptive optics, and is considered in free space optical communication, where signal stability is crucial.
Mata Calvo, Ramon   +5 more
core   +1 more source

Adaptive free space optic system based on visibility detector to overcome atmospheric attenuation

open access: yesResults in Physics, 2019
Free space optics (FSO) provides high data rate by allowing transmission of signal through atmosphere. FSO is affected by different weather conditions. The atmospheric attenuation is caused by two main factors; absorption and scattering.
Muhammad K. El-Nayal   +3 more
doaj   +1 more source

A survey of free space optical networks

open access: yesDigital Communications and Networks, 2017
Free Space Optical (FSO) networks, also known as optical wireless networks, have emerged as viable candidates for broadband wireless communications in the near future. The range of the potential application of FSO networks is extensive, from home to satellite.
In Keun Son, Shiwen Mao
openaire   +3 more sources

Continuous wave Bessel beams with a strong longitudinal acceleration in free space

open access: yes, 2022
A variety of transversely accelerating optical beams, such as Airy, Mathieu, and Weber beams, have been proposed and intensively studied in the past few decades, while longitudinal acceleration of optical beams in free space has been considered much less
Hildén, Panu   +7 more
core   +1 more source

Arrayed Waveguide Grating Spectrometer on 2-µm-thick SOI Platform [PDF]

open access: yesEPJ Web of Conferences, 2023
32-channel arrayed waveguide grating spectrometer (AWG) at 1800 nm is demonstrated on a 2-µm-thick silicon-on-insulator (SOI) platform. The design and simulation of the device are performed using the beam propagation method (BPM) and we obtain the 3-dB ...
Tippinit Janvit   +2 more
doaj   +1 more source

Terrestrial Free-Space Optical Communications [PDF]

open access: yes, 2010
Book abstract: Mobile and wireless communications applications have a clear impact on improving the humanity wellbeing. From cell phones to wireless internet to home and office devices, most of the applications are converted from wired into wireless communication.
Ghassemlooy, Zabih, Popoola, Wasiu O.
openaire   +2 more sources

Experimental study of bit error rate of free space optics communications in laboratory controlled turbulence [PDF]

open access: yes, 2010
This paper reports experimental results for the performance of an free space optical (FSO) communication link employing different modulation schemes under the influence of the atmospheric scintillation.
Z. Ghassemlooy   +13 more
core   +1 more source

A Hybrid Optical Fiber and FSO System for Bidirectional Communications Used in Bridges [PDF]

open access: yes, 2015
In this paper, a 10-Gb/s hybrid optical fiber (OF) and free-space optics (FSO) link as part of a bidirectional long-haul OF transmission for application in outdoor environments such as bridges is proposed.
Ghassemlooy, Zabih   +4 more
core   +1 more source

Squeeze free space with nonlocal flat optics

open access: yes, 2020
There has been substantial interest in miniaturizing optical systems by flat optics. However, one essential optical component, free space, fundamentally cannot be substituted with conventional local flat optics with space-dependent transfer functions ...
Shanhui Fan (1708261)   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy