Results 41 to 50 of about 151,021 (294)
Photonics, 2022 In this paper, a simple sampling frequency offset (SFO) estimation and compensation scheme based on two phase-conjugated pilots is proposed and experimentally demonstrated in an OFDM-based underwater wireless optical communication (UWOC) system.
Hu Li +5 more
doaj +1 more source
An All Linear Optical Quantum Memory Based on Quantum Error Correction [PDF]
, 2003 When photons are sent through a fiber as part of a quantum communication protocol, the error that is most difficult to correct is photon loss. Here, we propose and analyze a two-to-four qubit encoding scheme, which can recover the loss of one qubit in ...
Dowling, Jonathan P. +4 more
core +3 more sources
Design and analysis of annulus core few mode EDFA for modal gain equalization
, 2016 Few-mode fiber amplifier is widely under study to overcome the issue of internet traffic in optical communication. This article proposes annulus core few-mode erbium doped fiber (FM-EDF) with annulus or extra annulus doping for amplification of the LP01,
Gaur, Ankita, Rastogi, Vipul
core +1 more source
True Phase Measurement of Distributed Vibration Sensors Based on Heterodyne $\varphi $-OTDR
IEEE Photonics Journal, 2018 We demonstrate a method to truly measure the phase change originated from external vibration by heterodyne phase-sensitive optical time-domain reflectometer ($\varphi $ -OTDR).
Huanhuan Liu +6 more
doaj +1 more source
Seven-Ring-Core Erbium-Doped Fiber for OAM-MDM Amplification
IEEE Photonics Journal, 2023 Orbital angular momentum (OAM) mode division multiplexing (MDM) amplification in a seven-ring-core erbium-doped fiber (7-RC-EDF) has been experimentally demonstrated, in which the 1st–4th order OAM modes within each core of the 7-RC-EDF can be ...
Qi Jiang +8 more
doaj +1 more source
Diffusion of optical pulses in dispersion-shifted randomly birefringent optical fibers
, 2004 An effect of polarization-mode dispersion, nonlinearity and random variation of dispersion along an optical fiber on a pulse propagation in a randomly birefringent dispersion-shifted optical fiber with zero average dispersion is studied.
Abdullaev +27 more
core +1 more source
Synchronised laser chaos communication: statistical investigation of an experimental system [PDF]
, 2017 The paper is concerned with analyzing data from an experimental antipodal laser-based chaos shift-keying communication system. Binary messages are embedded in a chaotically behaving laser wave which is transmitted through a fiber-optic cable and are ...
Lawrance, Anthony J. +2 more
core +1 more source
Microsystems & NanoengineeringDigital micromirror device-based maskless projection lithography (DMPL) has emerged as a transformative nanopatterning platform, yet faces fundamental challenges in resolving high-density nanostructures due to optical diffraction constraints.
Zi-Xin Liang +5 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
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To delineate specific in vivo white matter pathology in neuronal intranuclear inclusion disease (NIID) using diffusion spectrum imaging (DSI) and define its clinical relevance. Methods DSI was performed on 42 NIID patients and 38 matched controls.
Kaiyan Jiang +10 more
wiley +1 more source