Experimental comparison of terahertz and infrared data signal attenuation in dust clouds

Document Type

Article

Publication Date

1-1-2012

Abstract

In order to study and compare propagation features of terahertz (THz) links with infrared (IR) links under different weather conditions such as turbulence, fog, and dust particles, THz and IR free space communication links at 625 GHz carrier frequency and 1.5 μm wavelength, respectively, with a maximum data rate of 2.5 Gb/s have been developed. After propagating through the same channel perturbation caused by dust, attenuation of the carrier frequencies by dust as well as scintillation effects on both channels are analyzed by measuring the power attenuation and bit error rates. Attenuation by the presence of dust degrades the IR channel but exhibits almost no measurable impact on the THz signal. Numerical simulations of THz attenuation with different dust concentrations are presented and agree with the measured results. © 2012 Optical Society of America 1084-7529/12/112360-07$15.00/0.

Identifier

84869761836 (Scopus)

Publication Title

Journal of the Optical Society of America A Optics and Image Science and Vision

External Full Text Location

https://doi.org/10.1364/JOSAA.29.002360

e-ISSN

15208532

ISSN

10847529

First Page

2360

Last Page

2366

Issue

11

Volume

29

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