V. V. Dyudelev, E. D. Cherotchenko, D. A. Mikhailov, D. V. Chistyakov, S. O. Slipchenko, A. V. Lyutetskiy, A. G. Gladyshev, A. V. Babichev, L. Ya. Karachinsky, I. I. Novikov, N. A. Pikhtin, A. Yu. Egorov, A. V. Kondrashov, A. A. Semenov, G. S. Sokolovskii, A. B. Ustinov, “Generation of random sequences by switching transverse modes in a quantum cascade laser”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2023, Volume 49, Issue 22,Pages <nobr>35

Generation of random sequences by switching transverse modes in a quantum cascade laser

V. V. Dyudelev^a, E. D. Cherotchenko^a, D. A. Mikhailov^a, D. V. Chistyakov^a, S. O. Slipchenko^a, A. V. Lyutetskiy^a, A. G. Gladyshev^b, A. V. Babichev^a, L. Ya. Karachinsky^b, I. I. Novikov^b, N. A. Pikhtin^a, A. Yu. Egorov^c, A. V. Kondrashov^d, A. A. Semenov^d, G. S. Sokolovskii^a, A. B. Ustinov^d

^a Ioffe Institute, St. Petersburg, Russia
^b Connector Optics LLC, St. Petersburg, Russia
^c Alferov Federal State Budgetary Institution of Higher Education and Science Saint Petersburg National Research Academic University of the Russian Academy of Sciences, St. Petersburg, Russia
^d Saint Petersburg Electrotechnical University "LETI", St. Petersburg, Russia

Abstract: The generation of random bit sequences by switching transverse modes in a quantum cascade laser (QCL) was studied. To receive the radiation, a quantum cascade detector (QCD) made from a QCL heterostructure was used, which provides the possibility of combining them in a photonic integrated circuit. The study was carried out for a QCL pump pulse duration of 130 ns with a repetition rate of 10–100 kHz. It is shown that electrical pulses with a randomly varying voltage value appear at the output of the QCL-QCD optical coupler. Pulses could be converted into random bit sequences using appropriate comparison.

Keywords: integrated optics, quantum cascade laser, random bit sequences.

Received: 15.09.2023
Revised: 02.10.2023
Accepted: 02.10.2023

DOI: 10.61011/PJTF.2023.22.56598.19729