Results 31 to 40 of about 661,766 (323)
Quantum Communication Network Utilizing Quadripartite Entangled States of Optical Field [PDF]
, 2009 We propose two types of quantum dense coding communication networks with optical continuous variables, in which a quadripartite entangled state of the optical field with totally three-party correlations of quadrature amplitudes is utilized.
C. E. Shannon +4 more
core +1 more source
Compressing Turbulence Effect in FSO using New Modulation Technique
MATEC Web of Conferences, 2017 Diffusers transmitter modulation to reduce the effect of atmospheric turbulence in free space optical communication system is described in this paper.
Mohamed Nawawi Norizan +4 more
doaj +1 more source
A cross-layer heuristic algorithm for addressing shadowing problem in optical attocell networks [PDF]
, 2020 The performance of visible light communication (VLC)-based optical attocell networks degrades due to shadowing caused by opaque objects. In order to improve reliability, we propose a cross-layer algorithm to find the optimal routing and resource ...
Colle, Didier +2 more
core +1 more source
Free-space quantum key distribution by rotation-invariant twisted photons
, 2014 Twisted photons are photons carrying a well-defined nonzero value of orbital angular momentum (OAM). The associated optical wave exhibits a helical shape of the wavefront (hence the name) and an optical vortex at the beam axis.
D'Ambrosio, Vincenzo +6 more
core +1 more source
Integrating a QPSK Quantum Key Distribution Link [PDF]
, 2006 We present the integration of the optical and electronic subsystems of a BB84-QKD fiber link. A highspeed FPGA MODEM generates the random QPSK sequences for a fiber-optic delayed self-homodyne scheme using APD detectors.Comment: 2 pages, 4 figures ...
Agnolini, S. +6 more
core +2 more sources
A Broadband Distributed Vibration Sensing System Assisted by a Distributed Feedback Interferometer
IEEE Photonics Journal, 2018 A distributed vibration-sensing system based on phase-sensitive optical time-domain reflectometry (Φ-OTDR) and distributed feedback interferometer (DFI) with broadband frequency response and high spatial resolution has been proposed and ...
Yuanyuan Shan +6 more
doaj +1 more source
Optica Acta: International Journal of Optics, 1981 A transcript of the proceedings of a meeting of the Royal Signals Institution, held at the School of Signals, Blandford on 31 March 1976.
openaire +2 more sources
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
Pediatric Blood &Cancer, EarlyView.ABSTRACT Introduction We developed MedSupport, a multilevel medication adherence intervention designed to address root barriers to medication adherence. This study sought to explore the feasibility and acceptability of the MedSupport intervention strategies to support a future full‐scale randomized controlled trial.
Elizabeth G. Bouchard +8 more
wiley +1 more source
High-Sensitive Refractive Index Sensing Enabled by Topological Charge Evolution
IEEE Photonics Journal, 2020 A high-sensitive refractive index sensor is proposed and demonstrated by utilizing merging bound states in the continuum, namely a set of integer topological charges in the momentum space.
Jiaxin Lv +5 more
doaj +1 more source