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Proceedings Paper

Fast random-number generation using a diode laser's frequency noise characteristic
Author(s): Hiroki Takamori; Kohei Doi; Shinya Maehara; Kohei Kawakami; Takashi Sato; Masashi Ohkawa; Yasuo Ohdaira
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Paper Abstract

Random numbers can be classified as either pseudo- or physical-random, in character. Pseudo-random numbers are generated by definite periodicity, so, their usefulness in cryptographic applications is somewhat limited. On the other hand, naturally-generated physical-random numbers have no calculable periodicity, thereby making them ideal for the task. Diode lasers' considerable wideband noise gives them tremendous capacity for generating physical-random numbers, at a high rate of speed. We measured a diode laser's output with a fast photo detector, and evaluated the binary-numbers from the diode laser's frequency noise characteristics. We then identified and evaluated the binary-number-line's statistical properties. We also investigate the possibility that much faster physical-random number parallel-generation is possible, using separate outputs of different optical-path length and character, which we refer to as "coherence collapse".

Paper Details

Date Published: 28 February 2012
PDF: 7 pages
Proc. SPIE 8255, Physics and Simulation of Optoelectronic Devices XX, 825521 (28 February 2012); doi: 10.1117/12.908011
Show Author Affiliations
Hiroki Takamori, Niigata Univ. (Japan)
Kohei Doi, Niigata Univ. (Japan)
Shinya Maehara, Niigata Univ. (Japan)
Kohei Kawakami, Niigata Univ. (Japan)
Takashi Sato, Niigata Univ. (Japan)
Masashi Ohkawa, Niigata Univ. (Japan)
Yasuo Ohdaira, Niigata Univ. (Japan)

Published in SPIE Proceedings Vol. 8255:
Physics and Simulation of Optoelectronic Devices XX
Bernd Witzigmann; Marek Osinski; Fritz Henneberger; Yasuhiko Arakawa, Editor(s)

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