Photonic sensing based on variation of propagation properties of photonic crystal fibres.
We report on a low-coherence interferometric scheme for the measurement of the strain and temperature dependences of group delay and dispersion in short, index-guiding, 'endlessly-single-mode' photonic crystal fibre elements in the 840 nm and 1550 nm regions. Based on the measurements, we propose two schemes for simultaneous strain and temperature measurement using a single unmodified PCF element, without a requirement for any compensating components, and we project the measurement accuracies of these schemes.
Rothwell
John H
JH
Flavin
Dónal A
DA
Macpherson
William N
WN
Jones
Julian D
JD
Knight
Jonathan C
JC
Russell
Philip St J
PS