THz and IR Signaling through Fog Scintillations

Conference: European Wireless 2012 - 18th European Wireless Conference 2012
04/18/2012 - 04/20/2012 at Poznan, Poland

Proceedings: European Wireless 2012

Pages: 5Language: englishTyp: PDF

Moeller, Lothar (Bell Labs / Alcatel-Lucent, Holmdel, NJ 07733, USA)
Su, Ke; Federici, John F. (Department of Physics, NJIT, Newark, NJ 07102, USA)
Barat, Robert B. (Otto York Department of Chemical Engineering, NJIT, Newark, NJ 07102, USA)

We report Terahertz (THz) and Infrared (IR) freespace signaling through fog and analyze impairments in both links caused by local refraction index changes in the propagation paths. Both channels carry a payload of 2.5 Gb/s which is modulated on carriers at 625 GHz (THz signal) and 193 THz (IR signal). To study the impact of weather conditions on the link performance the beams are superposed and pass through the same fog cloud before they are simultaneously recorded and analyzed. Fog scintillations degrade the IR channel but do not measurably impact the THz signal. BER and power measurements describe the performance of the signals.