Abstract
This work describes an experimental method for measuring the speed of light in air. It uses optical feedback from a visible picosecond diode laser operated below the threshold and a voltage-controlled oscillator to determine the time required for a pulse to travel a known distance. The experimental setup is compact, fitting into a space of 1 × 0.5 m2, and at the same time, can determine the speed of light with an uncertainty of 0.03%. The method does not require fast detectors or oscilloscopes.
| Original language | English |
|---|---|
| Pages (from-to) | 935-939 |
| Number of pages | 5 |
| Journal | American Journal of Physics |
| Volume | 90 |
| Issue number | 12 |
| DOIs | |
| State | Published - 1 Dec 2022 |
Bibliographical note
Publisher Copyright:© 2022 Author(s).
ASJC Scopus subject areas
- General Physics and Astronomy