Fast quantum randomness generation from vacuum fluctuation induced phase diffusion between pulses of laser diode

Violetta Sharoglazova; Roman Ermakov; Anton Losev; Vladimir Zavodilenko; Vladimir Kurochkin; Yuriy Kurochkin

doi:10.1117/12.2522431

15 March 2019 Fast quantum randomness generation from vacuum fluctuation induced phase diffusion between pulses of laser diode

Violetta Sharoglazova, Roman Ermakov, Anton Losev, Vladimir Zavodilenko, Vladimir Kurochkin, Yuriy Kurochkin

Author Affiliations +

Proceedings Volume 11022, International Conference on Micro- and Nano-Electronics 2018; 110222W (2019) https://doi.org/10.1117/12.2522431
Event: The International Conference on Micro- and Nano-Electronics 2018, 2018, Zvenigorod, Russian Federation

Abstract

In this paper, the prototype of quantum random number generator (QRNG) which is shown by extracting ran- domness from vacuum fluctuation of the electromagnetic field inside the laser cavity. A distributed feedback (DFB) laser diode (LD) is directly modulated to produce short optical pulses. The laser is operated far above and far below the threshold resulting in field of pulse which has a true random phase. The efficient conversion of vacuum fluctuations to random sequence of power of optical pulses is made by homemade Michelson interferom- eter. A proposed device has proven to have far more superior interferometric visibility coupled with high power making it also a cost-effective PIN diode detector as compared to QRNGs based on phase fluctuation modu- lated by constant current. As a result a proposed device is highly integrated using only commercially available components. Due to appropriate realization of our device, we have a good quality of raw random bits that have passed all tests without postprocessing. So the postprocessing doesn't significantly decrease the speed of output random bits. In fact, we have successfully demonstrated a prototype of high speed QRNG at a generation rate of over 1 Gbps.

Citation Download Citation

Violetta Sharoglazova, Roman Ermakov, Anton Losev, Vladimir Zavodilenko, Vladimir Kurochkin, and Yuriy Kurochkin "Fast quantum randomness generation from vacuum fluctuation induced phase diffusion between pulses of laser diode", Proc. SPIE 11022, International Conference on Micro- and Nano-Electronics 2018, 110222W (15 March 2019); https://doi.org/10.1117/12.2522431

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KEYWORDS

Interferometers

Signal detection

Semiconductor lasers

Diffusion

Field programmable gate arrays

Sensors

Binary data

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