Frequency-division-multiplexed polarimetric fiber laser current-sensor array.
We demonstrate a novel frequency-domain-multiplexing technique for implementing polarimetric fiber laser current sensors. Each sensor operates at a different polarization-mode beat frequency that is modulated in response to applied electric current. A bank of bandpass filters can be used to separate signals from different sensors. A simple frequency-demodulation technique based on a phase-locked loop is used for signal processing.
Yong
J C
JC
Yun
S H
SH
Lee
M L
ML
Kim
B Y
BY