SUBMICROAMPERE-PER-ROOT-HERTZ CURRENT SENSOR-BASED ON THE FARADAY-EFFECT IN GAYIG

被引：30

作者：

ROSE, AH

DEETER, MN

DAY, GW

机构：

[1] National Institute of Standards and Technology, Boulder, CO

来源：

OPTICS LETTERS | 1993年 / 18卷 / 17期

关键词：

D O I：

10.1364/OL.18.001471

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate an optical current sensor that is based on the Faraday effect in gallium-substituted yttrium iron garnet and has a measured sensitivity of approximately 3-degrees/A, a noise-equivalent current of approximately 220 nA/square-root Hz, and a -3-dB bandwidth of approximately 2.6 MHz. The bandwidth-sensitivity product is a factor of approximately 10 greater than that of an all-silica-fiber current sensor with the same diameter.

引用

页码：1471 / 1473

页数：3

共 13 条

[1]

CERNOSEK RW, 1990, 7TH P OPT FIBR SENS, P73

[2] DEMAGNETIZING FACTORS FOR CYLINDERS [J].