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Investigation and Optimization of the Cryogenic Harmonic Phase Detector


K.V. Kalashnikov – Post-graduate Student, MPTI Kotel’nikov Institute of Radio Engineering, and Electronics Russian Academy of Sciences
V.P. Koshelets – Dr. Sc. (Phys.-Math.), Head of Laboratory, Kotel’nikov Institute of Radio Engineering, and Electronics Russian Academy of Sciences

We investigate a novel superconducting element, High-Harmonic Phase Detector (HPD) based on a superconductor-insulator-superconductor (SIS) junction. We have shown that this element could be implemented for phase-locking of a Flux Flow Oscillator (FFO) in a superconducting integrated receiver (SIR). In this article we propose new method for estimation of a synchronization efficiency based on HPD dc signal monitoring. We have developed experimental setup for measuring of the HPD output signal; it was shown that for the HPD operation the Josephson mixing regime is much more efficient then quasiparticle; the former one results in increase of the output signal on 12 dB at moderate noise level raise on 4 dB.

  1. Koshelets V.P., Shitov S.V. Integrated Superconducting Receivers – Superconductor Science and Technology. 2000. V. 13. № 5. R. R53 – R69.
  2. G. de Lange, Boersma D., Dercksen J. et. al. Supercond. Development and Characterization of the Superconducting Integrated Receiver Channel of the TELIS Atmospheric Sounder // Sci. Technol. 2010. V. 23. R. 045016.
  3. Kalashnikov K. V., Xudchenko A. V., Koshelecz V. P. Kriogenny'j fazovy'j detektor. Izvestiya RAN. Ser. fizicheskaya 2013. T. 77. № 1. S. 33.
  4. Kalashnikov K. V., Khudchenko A. V., Koshelets V. P. Harmonic phase detector for phase locking of cryogenic terahertz oscillators // Appl. Phys. Lett. 2013. V. 103. P. 102601.

June 24, 2020
May 29, 2020

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