By Topic

Broadband THz Pulse Transmission Through the Atmosphere

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Yihong Yang ; School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, OK, USA ; Mahboubeh Mandehgar ; Daniel R. Grischkowsky

We have transmitted a low-power beam of repetitive broadband THz pulses the record distance of 167 m through the atmosphere with 51% relative humidity at 21°C and have observed the broadened transmitted pulses with a signal to noise ratio greater than 200. The measured transmitted pulses reshaped from a 0.5-ps input pulse into an output pulse structure with a 5-ps symmetric pulse at the leading edge followed by a frequency-swept, rapidly oscillating trailing edge extending with increasing frequency to beyond 150 ps. The leading pulse appearing in the output pulse structure is composed of phase-locked frequency components extending from 0.07 to 0.37 THz that experienced negligible attenuation and group velocity dispersion due to transmission through water vapor. Such a stable pulse shape is suitable for the THz bit in a digital THz communications channel. Our results demonstrate a bit rate-distance product of greater than 8 (Gb/s)-km, which is comparable to an optical fiber digital communications channel.

Published in:

IEEE Transactions on Terahertz Science and Technology  (Volume:1 ,  Issue: 1 )