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Proceedings Paper

Experimental realization of quantum random number generator
Author(s): Jan Soubusta; Ondrej Haderka; Martin Hendrych; Pavel Pavlicek
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Paper Abstract

We present our experimental realization of a quantum random number generator (RNG) based on the quantum random process of division of light pulse on a fiber coupler. Our prototype consists of fiber optics elements: a pigtailcd laser diode, two mechanical attenuators, a fiber coupler, and two single photon detectors. The RNG contains all necessary electronics for the generation of light pulses, synchronized reading of detectors' states, processing of these results, and transfer of data to a host computer. The connection to the computer is done via a 25-pin parallel port, that makes our device easy to use with any personal computer (PC). The RNG can be operated in four different modes, that arc selected by the PC. The zeroth mode is just for the device control, the first mode serves for appropriate setting of generation efficiency, the second mode is designed for raw data sequence generation at a rate of 114 kByte/s, and the last mode provides balanced data sequence at a rate of 28 kByte/s utilizing von Ncumann's extraction procedure. This procedure is used to gain a properly balanced ratio between '0's and '1's. The balanced data sequence generated by the RNG in the third mode passes all kinds of tests we arc using [for example 15 tests proposed by G. Marsaglia, WWW: http://stat.fsu.edu/ geo/diehard.html 1. The raw data sequence can be used for purposes that do not need properly balanced data, because raw data passes tests that arc not inspecting the sequence balance.

Paper Details

Date Published: 21 November 2003
PDF: 7 pages
Proc. SPIE 5259, 13th Polish-Czech-Slovak Conference on Wave and Quantum Aspects of Contemporary Optics, (21 November 2003); doi: 10.1117/12.545053
Show Author Affiliations
Jan Soubusta, PalackyUniv. (Czech Republic)
Institute of Physics (Czech Republic)
Ondrej Haderka, Palacky Univ. (Czech Republic)
Institute of Physics (Czech Republic)
Martin Hendrych, Palacky Univ. (Czech Republic)
Institute of Physics (Czech Republic)
Pavel Pavlicek, Palacky Univ. (Czech Republic)
Institute of Physics (Czech Republic)


Published in SPIE Proceedings Vol. 5259:
13th Polish-Czech-Slovak Conference on Wave and Quantum Aspects of Contemporary Optics
Jerzy Nowak; Marek Zajac; Jan Masajada, Editor(s)

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