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Bipolar Waveform Synthesis with an Optically Driven Josephson Arbitrary Waveform Synthesizer



Justus Brevik, Dahyeon Lee, Anna Fox, Yiwei Peng, Akim Babenko, Joe Campbell, Paul Dresselhaus, Franklyn Quinlan, Samuel P. Benz


An array of Josephson junctions (JJs) was driven with photonically generated current pulses to synthesize a high-fidelity 1 kHz bipolar voltage waveform with a quantum-based amplitude that can be directly related to fundamental constants. A photodiode capable of producing high average photocurrent was used to generate large-amplitude current pulses that were ac-coupled to a JJ array. The resulting bipolar current pulses have enabled the first demonstration of quantum-based bipolar waveform synthesis with an optical drive. We measured the quantum locking range with respect to several operating parameters, including 1.2 mA with respect to a dc bias current applied to the array, confirming the robust synthesis of bipolar waveforms.
IEEE Transactions on Applied Superconductivity


Cryogenic photonic links, Josephson arbitrary waveform synthesizer, Josephson junction (JJ) arrays, photodiodes.


Brevik, J. , Lee, D. , Fox, A. , Peng, Y. , Babenko, A. , Campbell, J. , Dresselhaus, P. , Quinlan, F. and Benz, S. (2022), Bipolar Waveform Synthesis with an Optically Driven Josephson Arbitrary Waveform Synthesizer, IEEE Transactions on Applied Superconductivity, [online],, (Accessed March 2, 2024)
Created April 19, 2022, Updated December 22, 2023