Phase-sensitivity measurement of a 10-sensor array with erbium-doped fiber amplifier telemetry.
We report what are believed to be the first measurements of the phase sensitivity of a fiber sensor array using multiple low-gain remotely pumped amplifiers with an interferometric sensor inserted. The measured phase sensitivities for individual rungs average 5.7 microrad(rms)/ radicalHz and exhibit no dependence on rung number, in agreement with predictions.
Vakoc
B J
BJ
Hodgson
C W
CW
Digonnet
M J
MJ
Kino
G S
GS
Shaw
H J
HJ