Pulse Response of Mutually-Coupled dc-to-SFQ Converter Investigated using an On-Chip Pulse Generator

被引：0

作者：

Watanabe, Tomoki ^{[1
]}

Urai, Yoshiaki ^{[1
]}

Shimada, Hiroshi ^{[1
]}

Mizugaki, Yoshinao ^{[1
]}

机构：

[1] Univ Electrocommun, UEC Tokyo, Chofu, Tokyo 1828585, Japan

来源：

IEICE TRANSACTIONS ON ELECTRONICS | 2015年 / E98C卷 / 03期

关键词：

single-flux-quantum circuit; Nb IC; pulse generator; pulse response; SINGLE-PHOTON DETECTOR; QUANTUM KEY DISTRIBUTION; READOUT;

D O I：

10.1587/transele.E98.C.238

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A readout technique using single-flux-quantum (SFQ) circuits enables superconducting single photon detectors (SSPDs) to operate at further high-speed, where a mutually-coupled dc-to-SFQ (MC-dc/SFQ) converter is used as an interface between SSPDs and SFQ circuits. In this work, we investigated pulse response of the MC-dc/SFQ converter. We employed on-chip pulse generators to evaluate pulse response of the MC-dc/SFQ converter for various pulses. The MC-dc/SFQ converter correctly operated for the pulse current with the amplitude of 52 mu A and the width of 179 ps. In addition, we examined influence of the pulse amplitude and width to operation of the MC-dc/SFQ converter by numerical simulation. The simulation results indicated that the MC-dc/SFQ converter had wide operation margins for pulse current with amplitudes of 30-60 mu A irrespective of the pulse widths.

引用

页码：238 / 241

页数：4

共 5 条

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