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This article is cited in 2 scientific papers (total in 2 papers)
Quantum noise source based on shot noise of balanced photodetector with tunable integrated optical beam splitter
V. V. Lebedevab, V. M. Petrova, I. V. Il'ichevab, P. M. Agruzovab, A. V. Shamrayab a St. Petersburg National Research University of Information Technologies, Mechanics and Optics
b Ioffe Institute, St. Petersburg
Abstract:
Broadband quantum noise source based on the shot noise detection of a balanced photodetector is demonstrated. Precise electro-optical tuning of the balanced photodetector circuit was carried out by an integrated optical beam splitter in the form of the dual output Mach–Zehnder interferometer on a lithium niobate substrate. The classical component of the detected noise related to the relative intensity noise of a laser diode was suppressed by more than 15 dB. At the maximum laser power of 100 mW, power spectral density of detected shot noise was 12 dB higher than the level of technical noise of the measuring system in the frequency band above 3 GHz.
Keywords:
quantum random number generator, vacuum fluctuations, short-noise measurements, integrated optics, lithium niobate.
Received: 14.05.2021 Revised: 14.07.2021 Accepted: 15.07.2021
Citation:
V. V. Lebedev, V. M. Petrov, I. V. Il'ichev, P. M. Agruzov, A. V. Shamray, “Quantum noise source based on shot noise of balanced photodetector with tunable integrated optical beam splitter”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 47:21 (2021), 10–12
Linking options:
https://www.mathnet.ru/eng/pjtf4633 https://www.mathnet.ru/eng/pjtf/v47/i21/p10
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