VIBRATION IMMUNITY FOR A TRIANGULAR FARADAY CURRENT SENSOR

Citation
N. Fisher et D. Jackson, VIBRATION IMMUNITY FOR A TRIANGULAR FARADAY CURRENT SENSOR, Fiber and integrated optics, 16(3), 1997, pp. 321-328
Citations number
6
Categorie Soggetti
Optics
Journal title
ISSN journal
01468030
Volume
16
Issue
3
Year of publication
1997
Pages
321 - 328
Database
ISI
SICI code
0146-8030(1997)16:3<321:VIFATF>2.0.ZU;2-J
Abstract
We demonstrate a common-mode rejection scheme for a bulk-optic triangu lar Faraday current sensor that can eliminate optical noise induced by fiber-link vibration. The noise floor before applying common rejectio n was about 30 dB for a 100 Angstrom Faraday signal and transceiver vi bration levels of approximately 30 g. This was reduced to about 60 dB for the same vibration levels. The sensor's exploitation of Ampere's c ircuital law is also demonstrated.