Abstract
AbstractRandom numbers were generated using the probabilistic behavior of a single photon in an optical fiber coupler. An optical fiber coupler (1:1 split ratio) distributes with equal probability a single photon to two optical paths. Therefore, a binary random number sequence was obtained. This random number generation rate was 2.94 Mbit/s. We found from the results of examining the obtained random number sequence that correlation appears between adjacent numbers of random numbers because there is a dead‐time (Td=50ns) in the photon detector. Therefore, we created a new random number sequence by sampling every second random number. This random number sequence did pass statistical tests for independence and uniformity. Consequently, the random number generation rate was 1.47 Mbit/s. © 2006 Wiley Periodicals, Inc. Electron Comm Jpn Pt 3, 90(2): 1–8, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecjc.20229
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