Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Propagation Speed of Electromagnetic Waves01:30

Propagation Speed of Electromagnetic Waves

Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Heterogeneity in endpoints, monitoring methods and blanking periods in clinical trials of atrial fibrillation ablation: a systematic review and meta-analysis.

Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing·2026
Same author

Late Fracture of Stylet-driven Lead Intended for Conduction System Pacing 2 Years After Implant.

The Journal of innovations in cardiac rhythm management·2026
Same author

Evaluation of the METRA + intervention on mental health and social functioning in Afghan refugee adolescents in Pakistan: a pilot study.

European journal of psychotraumatology·2026
Same author

Intraluminal Lead Entry Into the Left Anterior Descending Coronary Artery With Left Bundle Branch Area Pacing.

JACC. Case reports·2026
Same author

HER2 testing in multiple solid tumor types: concordance of immunohistochemistry scores between three HER2 scoring algorithms.

Virchows Archiv : an international journal of pathology·2026
Same author

Prediction of Aspiration Risk by Using Vocal Biomarkers: Machine Learning Development and Validation Study.

JMIR formative research·2026

Related Experiment Video

Updated: May 12, 2026

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

10.1K

Free-space optical communications at 4 Gbit/s data rate with a terahertz laser.

Jayaprasath Elumalai1, Mohammed Salih1, Martyn Fice2

  • 1School of Electronic and Electrical Engineering, University of Leeds, Leeds, UK.

Communications Physics
|February 20, 2026
PubMed
Summary

This study demonstrates multi-gigabit-per-second free-space optical communication using a terahertz quantum cascade laser (QCL). This breakthrough paves the way for next-generation wireless systems leveraging terahertz (THz) technology.

Keywords:
Fibre optics and optical communicationsOptics and photonicsQuantum cascade lasers

More Related Videos

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
09:38

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

11.4K
Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
08:48

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

7.0K

Related Experiment Videos

Last Updated: May 12, 2026

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

10.1K
Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
09:38

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

11.4K
Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
08:48

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

7.0K

Area of Science:

  • Optoelectronics
  • Wireless Communication
  • Terahertz Technology

Background:

  • Terahertz-frequency (THz) carrier waves in free-space optical (FSO) communications promise high data rates (>1 Tbit/s) and stable latency.
  • THz FSO offers wider bandwidths and reduced scattering compared to microwave and infrared systems.
  • Current THz FSO systems are limited to significantly lower data rates than infrared systems.

Purpose of the Study:

  • To experimentally demonstrate multi-gigabit-per-second FSO communication using a THz quantum cascade laser (QCL).
  • To establish a foundation for high-speed optical wireless communication utilizing THz QCL technology.

Main Methods:

  • Developed an FSO communication system with a 2.4 THz QCL as the transmitter and a Schottky barrier diode detector as the receiver.
  • Employed direct modulation of the THz QCL to achieve non-return-to-zero on-off keying (NRZ-OOK).
  • Evaluated system performance by analyzing bit error rate (BER) against received optical power, QCL modulation power, and bias points.

Main Results:

  • Achieved a transmission rate of up to 4 Gbit/s using the THz QCL-based FSO system.
  • Successfully demonstrated NRZ-OOK modulation at terahertz frequencies.
  • Characterized the communication link's performance through BER analysis.

Conclusions:

  • The experimental demonstration validates the potential of THz QCLs for high-speed FSO communication.
  • This work opens new possibilities for next-generation wireless communication systems.
  • The findings lay the groundwork for future advancements in terahertz optical wireless technologies.