Title :
Demonstration of 3 pT/√(Hz) at 10 Hz in a fibre-optic magnetometer
Author :
Dagenais, D.M. ; Bucholtz, Frank ; Koo, K.P. ; Dandridge, A.
Author_Institution :
Naval Res. Lab., Washington, DC
fDate :
11/10/1988 12:00:00 AM
Abstract :
Detection of low frequency magnetic fields with interferometric fibre optic sensors has been limited by the presence of a residual signal at the carrier frequency, which upconverts low frequency noise. The authors present a technique which eliminates the residual signal and associated sideband noise, and demonstrate minimum detectable fields of ≈3 pT/√(Hz) at 10 Hz
Keywords :
fibre optic sensors; light interferometers; magnetic field measurement; magnetometers; magnetostrictive devices; 10 Hz; fibre-optic magnetometer; interferometric fibre optic sensors; low frequency magnetic fields; magnetostrictive type; residual signal elimination; sideband noise elimination;
Journal_Title :
Electronics Letters
