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Title: Synchronous SFQ Address Encoder for Superconductor Detector Arrays
Authors: Bozbey, Ali
Aydoğan, Eren
Üşenmez, Kübra
Razmkhah, Sasan
Tanaka, Masamitsu
Fujimaki, Akira
Keywords: Detectors
Laser excitation
Fiber lasers
Address encoder
imaging system
single flux quantum circuit
superconductor stripline detector
Issue Date: 2021
Publisher: IEEE-Inst Electrical Electronics Engineers Inc
Abstract: With the advances in superconductor detectors and single flux quantum (SFQ) logic circuits, megapixel imagers have become possible. Various detectors such as superconducting stripline detectors (SSLD), kinetic inductance detectors, nanowire single-photon detectors have quite matured in terms of speed and performance. However, scaling of the read-out electronics is still a challenge. We propose an SFQ based synchronous address encoder to read-out the response of an SSLD array. The encoder circuit provides two sets of outputs at each clock period: one is the time-division multiplexed, serial data output, and the other is the synchronized address output associated with the time-multiplexed data. Thus, the number of connections to the room temperature is substantially reduced. We experimentally demonstrate a 2-bit encoder. Then, we present the scalability of the circuit to larger arrays and show the simulation results of a 4-bit encoder, which is suitable to read-out a 16 x 16 detector array.
ISSN: 1051-8223
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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