title: Photonic sensing based on variation of propagation properties of photonic crystal fibres.
abstract: 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.
authors.forename: John H
authors.initials: JH
authors.lastname: Rothwell
authors.forename: Dónal A
authors.initials: DA
authors.lastname: Flavin
authors.forename: William N
authors.initials: WN
authors.lastname: Macpherson
authors.forename: Julian D
authors.initials: JD
authors.lastname: Jones
authors.forename: Jonathan C
authors.initials: JC
authors.lastname: Knight
authors.forename: Philip St J
authors.initials: PS
authors.lastname: Russell