Comparison of high speed quantum random number generators based on ASE-ASE and ASE-LASER beating

Shreyam Maity; Asish Prosad; Harinee Natarajan; Varun Raghunathan

doi:10.1117/12.2649916

8 March 2023 Comparison of high speed quantum random number generators based on ASE-ASE and ASE-LASER beating

Shreyam Maity, Asish Prosad, Harinee Natarajan, Varun Raghunathan

Author Affiliations +

Proceedings Volume 12446, Quantum Computing, Communication, and Simulation III; 1244610 (2023) https://doi.org/10.1117/12.2649916
Event: SPIE Quantum West, 2023, San Francisco, California, United States

Abstract

We report two Quantum Random Number Generator (QRNG) schemes based on Amplified Spontaneous Emission (ASE) to address the problems of previous ASE based QRNGs – (1) costlier and commercially difficult-to-get components, (2) higher electrical noise in the faster detectors. Our ASE-ASE-beating based QRNG, built using commercially available components, clocks in 7.437Gbps random number generation rate. Our second QRNG scheme based on the beating of LASER and ASE of similar power generates random bits at a speed of 7.80Gbps. The minimum entropy values for these schemes are 5.21 and 5.4990 respectively for an 8-bit ADC. The second scheme reports higher entropy because its random numbers has a higher variance than first one. We use the Toeplitz extractor on the raw bits to generate unbiased random numbers and verify them with the help of industry-standard statistical tests.

Conference Presentation

Citation Download Citation

Shreyam Maity, Asish Prosad, Harinee Natarajan, and Varun Raghunathan "Comparison of high speed quantum random number generators based on ASE-ASE and ASE-LASER beating", Proc. SPIE 12446, Quantum Computing, Communication, and Simulation III, 1244610 (8 March 2023); https://doi.org/10.1117/12.2649916

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