title: Simultaneous strain and temperature measurement with long-period gratings.
abstract: The differential modulation of the attenuation bands in a long-period grating is used for simultaneous sensing of axial strain and temperature. A grating fabricated in a conventional optical fiber is demonstrated for concurrent measurements of strain over a range of 2100 micro? and temperature over a range of 125 degrees C, with maximum errors of 58 micro? and 1 degrees C, respectively.
authors.forename: V
authors.initials: V
authors.lastname: Bhatia
authors.forename: D
authors.initials: D
authors.lastname: Campbell
authors.forename: R O
authors.initials: RO
authors.lastname: Claus
authors.forename: A M
authors.initials: AM
authors.lastname: Vengsarkar