Results 51 to 60 of about 1,233,950 (356)

Novel Wearable Optical Sensors for Vital Health Monitoring Systems—A Review

open access: yesBiosensors, 2023
Wearable sensors are pioneering devices to monitor health issues that allow the constant monitoring of physical and biological parameters. The immunity towards electromagnetic interference, miniaturization, detection of nano-volumes, integration with ...
Baljinder Kaur   +2 more
doaj   +1 more source

In-situ monitoring for CVD processes [PDF]

open access: yes, 2002
Aiming towards process control of industrial high yield/high volume CVD reactors, the potential of optical sensors as a monitoring tool has been explored.
A. Beil   +14 more
core   +3 more sources

Performance of Optical Structural Vibration Monitoring Systems in Experimental Modal Analysis

open access: yesSensors, 2021
Image-based optical vibration measurement is an attractive alternative to the conventional measurement of structural dynamics predominantly relying on accelerometry.
Maksat Kalybek   +2 more
doaj   +1 more source

Intelligent optical performance monitor using multi-task learning based artificial neural network

open access: yes, 2018
An intelligent optical performance monitor using multi-task learning based artificial neural network (MTL-ANN) is designed for simultaneous OSNR monitoring and modulation format identification (MFI).
Shu, * Liang   +5 more
core   +1 more source

Review: optical fiber sensors for civil engineering applications [PDF]

open access: yes, 2013
Optical fiber sensor (OFS) technologies have developed rapidly over the last few decades, and various types of OFS have found practical applications in the field of civil engineering. In this paper, which is resulting from the work of the RILEM technical
B Poumellec   +64 more
core   +1 more source

Experimental demonstration of adaptive digital monitoring and compensation of chromatic dispersion for coherent DP-QPSK receiver [PDF]

open access: yes, 2011
We experimentally demonstrate a digital signal processing (DSP)-based optical performance monitoring (OPM) algorithm for inservice monitoring of chromatic dispersion (CD) in coherent transport networks.
Darko Zibar   +8 more
core   +1 more source

Optical performance monitoring for translucent/transparent optical networks

open access: yesIET Optoelectronics, 2011
A comprehensive analysis and survey of the optical performance monitoring (OPM) is provided towards the deployment of translucent/transparent optical networks. OPM applications and technologies are reviewed for the different stages of the optical network life cycle: planning and provisioning, impairment mitigations, maintenance and failure location ...
David Dahan   +4 more
openaire   +2 more sources

Panoramic optical and near-infrared SETI instrument: optical and structural design concepts [PDF]

open access: yes, 2018
We propose a novel instrument design to greatly expand the current optical and near-infrared SETI search parameter space by monitoring the entire observable sky during all observable time.
Ackermann   +16 more
core   +2 more sources

Multi-task deep neural network (MT-DNN) enabled optical performance monitoring from directly detected PDM-QAM signals.

open access: yesOptics Express, 2019
We experimentally demonstrate a multi-task deep neutral network (MT-DNN) enabled optical performance monitoring (OPM) for PDM-QPSK/8QAM/16QAM signals, by using the asynchronous amplitude histogram (AAH) after the direct detection.
Yijun Cheng, S. Fu, M. Tang, Deming Liu
semanticscholar   +1 more source

Optical performance monitoring in optical packet-switched networks [PDF]

open access: yes, 2015
Para poder satisfacer la demanda de mayores anchos de banda y los requisitos de los nuevos servicios, se espera que se produzca una evolución de las redes ópticas hacia arquitecturas reconfigurables dinámicamente. Esta evolución subraya la importancia de ofrecer soluciones en la que la escalabilidad y la flexibilidad sean las principales directrices ...
openaire   +3 more sources

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