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7 January 2013 Frequency noise characteristics of a diode laser and its application to physical random number generation
Shinya Maehara, Kohei Kawakami, Hideaki Arai, Kenji Nakano, Kohei Doi, Takashi Sato, Yasuo Ohdaira, Shuichi Sakamoto, Masashi Ohkawa
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Optical Engineering, Vol. 52, Issue 1, 014302 (January 2013). https://doi.org/10.1117/1.OE.52.1.014302
Abstract
We describe a method of generating physical random numbers by means of a diode laser that has an extremely wide-band frequency-noise profile. Fluctuations in the laser frequency affect the intensity of the light transmitted through the optical frequency discriminator, detected thereafter as random fluctuations. This allows us to simultaneously generate 8 random bit streams, due to the parallel processing of 8-digit binary numbers sampled by an 8-bit analog-to-digital converter. Finally, we generated physical random numbers at a rate of 3  Gbit/s, by combining one data stream with another stream that is delayed by 2 ms, by exclusive-OR.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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Shinya Maehara, Kohei Kawakami, Hideaki Arai, Kenji Nakano, Kohei Doi, Takashi Sato, Yasuo Ohdaira, Shuichi Sakamoto, and Masashi Ohkawa "Frequency noise characteristics of a diode laser and its application to physical random number generation," Optical Engineering 52(1), 014302 (7 January 2013). https://doi.org/10.1117/1.OE.52.1.014302
Published: 7 January 2013
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Cited by 4 scholarly publications.
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KEYWORDS
Semiconductor lasers
Absorption
Binary data
Interference (communication)
Rubidium
Fabry–Perot interferometers
Optical amplifiers
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