Speed of light measurement with a picosecond diode laser and a voltage-controlled oscillator-Reference-Cited by-同舟云学术

Speed of light measurement with a picosecond diode laser and a voltage-controlled oscillator

Published:2022-12 Issue:12 Volume:90 Page:935-939
ISSN:0002-9505
Container-title:American Journal of Physics
language:en
Short-container-title:American Journal of Physics

Author:

Aljalal Abdulaziz M.¹^ORCID

Affiliation:

1. Physics Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia

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.

Funder

King Fahd University of Petroleum and Minerals

Publisher

American Association of Physics Teachers (AAPT)

Subject

General Physics and Astronomy

Link

https://aapt.scitation.org/doi/pdf/10.1119/5.0104758

Reference5 articles.

1. Measuring the speed of light using optical feedback from a picosecond diode laser

2. Compact, inexpensive, visible diode laser source of high repetition rate picosecond pulses

3. A low-cost high-repetition-rate picosecond laser diode pulse generator

4. National Instruments Corporation, “ DAQ X Series, X Series user manual,” p. 717,

5. See the supplementary material at https://www.scitation.org/doi/suppl/10.1119/5.0104758 for the additional exercises related to the experiment.

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1. Speed of light measurement with a picosecond diode laser and a voltage-controlled oscillator;American Journal of Physics;2022-12