Entropic analysis of the information rate density of broadband active fiber-optic communication links

2004 ◽  
Vol 97 (3) ◽  
pp. 464-467 ◽  
Author(s):  
G. V. Sinitsyn ◽  
M. A. Khodasevich
Keyword(s):  
Fiber Optic ◽  
Information Rate ◽  
Active Fiber ◽  
Communication Links ◽  
Fiber Optic Communication ◽  
Optic Communication

Optical data signals in fiber optic communication links with fading

2019 ◽  
pp. 94-104
Author(s):  
I. Juwiler ◽  
I. Bronfman ◽  
N. Blaunstein
Keyword(s):  
Spectral Efficiency ◽  
Fiber Optic ◽  
Fiber Optic Cable ◽  
Optical Signals ◽  
Dispersion Properties ◽  
Optical Cable ◽  
Time Dispersion ◽  
Communication Links ◽  
Fiber Optic Communication ◽  
Optic Communication

Introduction: This article is based on the recent research work in the field of two subjects: signal data parameters in fiber optic communication links, and dispersive properties of optical signals caused by non-homogeneous material phenomena and multimode propagation of optical signals in such kinds of wired links.Purpose: Studying multimode dispersion by analyzing the propagation of guiding optical waves along a fiber optic cable with various refractive index profiles of the inner optical cable (core) relative to the outer cladding, as well as dispersion properties of a fiber optic cable due to inhomogeneous nature of the cladding along the cable, for two types of signal code sequences transmitted via the cable: return-to-zero and non-return-to-zero ones.Methods: Dispersion properties of multimode propagation inside a fiber optic cable are analyzed with an advanced 3D model of optical wave propagation in a given guiding structure. The effects of multimodal dispersion and material dispersion causing the optical signal delay spread along the cable were investigated analytically and numerically.Results: Time dispersion properties were obtained and graphically illustrated for two kinds of fiber optic structures with different refractive index profiles. The dispersion was caused by multimode (e.g. multi-ray) propagation and by the inhomogeneous nature of the material along the cable. Their effect on the capacity and spectral efficiency of a data signal stream passing through such a guiding optical structure is illustrated for arbitrary refractive indices of the inner (core) and outer (cladding) elements of the optical cable. A new methodology is introduced for finding and evaluating the effects of time dispersion of optical signals propagating in fiber optic structures of various kinds. An algorithm is proposed for estimating the spectral efficiency loss measured in bits per second per Hertz per each kilometer along the cable, for arbitrary presentation of the code signals in the data stream, non-return-to zero or return-to-zero ones. All practical tests are illustrated by MATLAB utility.

scholarly journals Fiber-optic communication links suitable for on-board use in modern aircraft

2004 ◽  
Author(s):  
Hung Duc Nguyen ◽  
Duc Huy Ngo ◽  
Mohammed Atiquzzaman ◽  
James Sluss, Jr. ◽  
Filip Slaveski ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Communication Links ◽  
Fiber Optic Communication ◽  
Optic Communication

Silicon bipolar chipset for SONET/SDH 10 Gb/s fiber-optic communication links

1995 ◽  
Vol 30 (3) ◽  
pp. 210-218 ◽  
Author(s):  
L.I. Andersson ◽  
B.G.R. Rudberg ◽  
P.T. Lewin ◽  
M.D. Reed ◽  
S.M. Planer ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Communication Links ◽  
Fiber Optic Communication ◽  
Optic Communication
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