OPTOELECTRONIC GENERATION AND DETECTION OF SINGLE-FLUX-QUANTUM PULSES

被引：34

作者：

WANG, CC ^{[1
]}

CURRIE, M ^{[1
]}

JACOBSPERKINS, D ^{[1
]}

FELDMAN, MJ ^{[1
]}

SOBOLEWSKI, R ^{[1
]}

HSIANG, TY ^{[1
]}

机构：

[1] UNIV ROCHESTER,DEPT ELECT ENGN,ROCHESTER,NY 14623

来源：

APPLIED PHYSICS LETTERS | 1995年 / 66卷 / 24期

关键词：

D O I：

10.1063/1.113745

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the direct observation of a single-flux-quantum (SFQ) pulse. The response of a metal-semiconductor-metal photodiode to a femtosecond laser pulse was used to switch Josephson junctions and to generate an SFQ voltage pulse on a superconducting microstrip line. The detailed shape of the pulse was measured optoelectronically, using a cryogenic electro-optic sampling system. The measured SFQ pulse had a width of 3.2 ps, an amplitude of 0.67 mV, and a total pulse content of 2.1±0.2 mV×ps, corresponding to the quantum of magnetic flux h/2e. With larger excitation, multiple SFQ pulses were observed. Numerical simulations are shown to be qualitatively similar to our experimental results.© 1995 American Institute of Physics.

引用

页码：3325 / 3327

页数：3

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