Compensating Atmospheric Channel Dispersion for Terahertz Wireless Communication. Academic Article uri icon

abstract

  • We report and demonstrate for the first time a method to compensate atmospheric group velocity dispersion of terahertz pulses. In ultra-wideband or impulse radio terahertz wireless communication, the atmosphere reshapes terahertz pulses via group velocity dispersion, a result of the frequency-dependent refractivity of air. Without correction, this can significantly degrade the achievable data transmission rate. We present a method for compensating the atmospheric dispersion of terahertz pulses using a cohort of stratified media reflectors. Using this method, we compensated group velocity dispersion in the 0.2-0.3 THz channel under common atmospheric conditions. Based on analytic and numerical simulations, the method can exhibit an in-band power efficiency of greater than 98% and dispersion compensation up to 99% of ideal. Simulations were validated by experimental measurements.

published proceedings

  • Sci Rep

altmetric score

  • 1

author list (cited authors)

  • Strecker, K., Ekin, S., & O'Hara, J. F.

citation count

  • 15

complete list of authors

  • Strecker, Karl||Ekin, Sabit||O'Hara, John F

publication date

  • April 2020