title: Embedded progressive-three-layered fiber long-period gratings for respiratory monitoring.
abstract: A long-period grating (LPG) was written into a progressive three-layered single-mode fiber that was embedded into a flexible platform as a curvature sensor. The spectral location and profile of the LPGs were unaltered after implantation in the platform. The curvature sensitivity was 3.747 nm m with a resolution of +/-1.1 x 10(-2) m(-1). The bend sensor is intended to be part of a respiratory monitoring system and was tested on a resuscitation training manikin.
authors.affiliation: Aston University Photonics Research Group Aston Triangle Birmingham B4 7ET United Kingdom. t.d.p.allsop@aston.ac.uk
authors.forename: Thomas
authors.initials: T
authors.lastname: Allsop
authors.forename: T
authors.initials: T
authors.lastname: Earthrowl-Gould
authors.forename: David J
authors.initials: DJ
authors.lastname: Webb
authors.forename: Ian
authors.initials: I
authors.lastname: Bennion
mesh_terms: D004548:Elasticity; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation* / Q000379:methods; D012129:Respiratory Function Tests / Q000295:instrumentation* / Q000379:methods; D015656:Respiratory Mechanics / Q000502:physiology*; D013147:Spirometry / Q000295:instrumentation / Q000379:methods; D013314:Stress, Mechanical; D014159:Transducers