Results 11 to 20 of about 3,010,687 (303)

Travelling-Wave Modeling of Dynamics of Ultrafast Reflective-Intracavity-Filter Tunable Fabry-Pérot Lasers for Optical Coherent Tomography [PDF]

open access: yes, 2011
The dynamics of Fabry-Pérot external-cavity laser diodes frequency-swept at a high rate using a tunable intracavity filter are investigated by travelling-wave modelling. The effect of broad and narrow bandwidth filter properties and linewidth enhancement
Zhang, Lixiong
core   +6 more sources

Study and optimization of high-bit rate optical fiber transmission [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2008
In this article, we present the modeling of an optical communication link using the optical standard single-mode fiber working at X = 1.55 џт single wavelength The simulation confirmed the experimental characteristics like the photo detector sensibility,
Oukli Mimouna   +3 more
doaj   +1 more source

Design and Analysis of 5G Optical Communication System for Various Filtering Operations using Wireless Optical Transmission

open access: yesResults in Physics, 2019
In this paper, the Optical Wireless Communication (OWC) channels for different optical filters are analysed and compared with their previous model. Performance analysis is done using different optical filters namely Bessel, Trapezoidal, Gaussian and ...
K.H. Shakthi Murugan, M. Sumathi
doaj   +1 more source

Tunable Optical Filters Using Compound Ring Resonators for DWDM [PDF]

open access: yes, 2003
The device is based on a loop mirror in a ring resonator. The loop mirror allows tuning by changing the coupling coefficient of a directional coupler. The loop mirror is implemented using a Sagnac configuration to have the same optical path between the ...
Sánchez-Pena, José Manuel   +3 more
core   +2 more sources

Measurements On Passive Tunable Optical Filters For DWDM [PDF]

open access: yes, 2002
WFOPC 2002 IEEE/LEOS Workshop on Fibre and Optical Passive Components, University of Glasgow, Scotland, on 5th-6th June 2002.Measurements on a passive optical fibre tunable filter are presented.
Sánchez-Pena, José Manuel   +3 more
core   +1 more source

A Novel Method to Realize Optical Correlation Recognition Based on Neural Network

open access: yesIEEE Photonics Journal, 2018
A neural network model is constructed according to 4F optical correlator. New optical filter is obtained by training the neural network. For recognition of distortion targets, the correlation peaks from correlator applying new filter are averagely ...
Ping Xu   +5 more
doaj   +1 more source

Tunable ring resonator filter for OFDM Transmission systems [PDF]

open access: yes, 1995
A novel tunable filter is theoretically demonstrated. It is based on a ring resonator with an amplifier and a noise filter in the loop. This optoelectronic device has potential as a high-sensitivity receiver and as a tunable demultiplexer in OFDM ...
López Amo, Manuel   +2 more
core   +1 more source

Broadband Backhaul Communication for Stratospheric Platforms: The Stratospheric Optical Payload Experiment (STROPEX) [PDF]

open access: yes, 2006
A high bitrate optical downlink was performed by the stratospheric optical payload experiment (STROPEX), a part of the EU CAPANINA project. The STROPEX objectives were to design and build the necessary hardware to demonstrate an optical backhaul downlink
Knapek, Markus   +9 more
core   +1 more source

Dual-Core Photonic Crystal Fiber for Use in Fiber Filters

open access: yesIEEE Photonics Journal, 2016
An asymmetrical dual-core photonic crystal fiber (DC-PCF), which possesses all circular air holes, is proposed. By setting appropriate geometrical parameters, the wavelength-selective coupling property is realized, and a compact optical filter with a ...
Haiming Jiang   +3 more
doaj   +1 more source

Analysis of Liquid Crystal Tunable Thin-Film Optical Filters Using Signal Flow Graph Technique

open access: yesInternational Journal of Optics, 2021
In this paper, a liquid crystal tunable thin-film optical bandpass filter is studied and analyzed using the signal flow graph technique. This paper investigates an exact form for calculating the transmission coefficients, reflection coefficients, and the
Abedalgany Athamneh, Shadi A. Alboon
doaj   +1 more source

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