Experimental Comparison of Terahertz and Infrared Signaling in Controlled Atmospheric Turbulence

Jianjun Ma, Lothar Moeller, John F. Federici

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

In order to study and compare propagation features of Terahertz (THz) and infrared (IR) links under different air turbulence conditions, THz and IR free- space communication links at 625 GHz carrier frequency and 1550 nm wavelength, respectively, with a maximum data rate of 2.5 Gb/s have been developed. After propagating through the same channel perturbation caused by air turbulence, attenuation of the channels due to scintillation effects is analyzed by measuring the power and bit-error-rates in each link. Attenuation caused by air turbulence degrades the IR channel but exhibits only minor impact on the THz signal. Numerical simulations of the IR and THz attenuation under different turbulence conditions are presented and compared with the experimental data.

Original languageEnglish (US)
Pages (from-to)130-143
Number of pages14
JournalJournal of Infrared, Millimeter, and Terahertz Waves
Volume36
Issue number2
DOIs
StatePublished - Feb 2015

All Science Journal Classification (ASJC) codes

  • Radiation
  • Instrumentation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Keywords

  • Atmospheric propagation
  • Free-space optical communication
  • Infrared laser
  • Scintillation
  • Terahertz

Fingerprint

Dive into the research topics of 'Experimental Comparison of Terahertz and Infrared Signaling in Controlled Atmospheric Turbulence'. Together they form a unique fingerprint.

Cite this