AUTHOR=Okuma Tomohiko , Kanno Kazutaka , Uchida Atsushi 

TITLE=Experimental estimation of sample entropy in a semiconductor laser with optical feedback for random number generation

JOURNAL=Frontiers in Complex Systems

VOLUME=2

YEAR=2024

URL=https://www.frontiersin.org/journals/complex-systems/articles/10.3389/fcpxs.2024.1379464

DOI=10.3389/fcpxs.2024.1379464

ISSN=2813-6187

ABSTRACT=<p>Estimating the entropy rate of physical random number generators with uncertainty is crucial for information security applications. We evaluate the sample entropy of chaotic temporal waveforms generated experimentally by a semiconductor laser with time-delayed optical feedback. We demonstrate random number generation with uncertainty using a quantitative measurement of the entropy rate.</p>