Abstract
We demonstrate a wireless transmission link at 3.9 THz over a distance of 0.5
m by employing a terahertz (Hz) quantum-cascade laser (QCL) and a THz quantum-well
photodetector (QWP). We make direct voltage modulation of the THz QCL and use a
spectral-matched THz QWP to detect the modulated THz light from the laser. The small
signal model and a direct voltage modulation scheme of the laser are presented. A
square wave up to 30 MHz is added to the laser and detected by the THz detector. The
bandwidth limit of the wireless link is also discussed.
© 2014 Chinese Optics Letters
PDF Article
More Like This
Detection sensitivity of laser feedback interferometry using a terahertz quantum cascade laser
J. Keeley, K. Bertling, P. L. Rubino, Y. L. Lim, T. Taimre, X. Qi, I. Kundu, L. H. Li, D. Indjin, A. D. Rakić, E. H. Linfield, A. G. Davies, J. Cunningham, and P. Dean
Opt. Lett. 44(13) 3314-3317 (2019)
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription