Quantum noise detection: A portable and educational system
Jean‐François Morizur, M. Colla, Hans‐A. Bachor · American Journal of Physics · 2008
Quantum noise is a key feature of laser beams. It is both a limiting effect in contemporary optical measurements and a manifestation of the quantum nature of light. Its properties distinguish it from classical noise. We demonstrate a simple, reliable, and portable apparatus using low cost commercial lasers and electronics that provides evidence of these properties.