title: Fiber Bragg grating temperature sensor with controllable sensitivity.
abstract: We demonstrate a fiber Bragg grating (FBG) sensor with controllable sensitivity by connecting two metal strips that have different temperature-expansion coefficients. By changing the lengths of the metal strips we successfully controlled and improved the temperature sensitivity to 3.3 times of that of bare FBG.
authors.affiliation: School of Electrical Engineering, Seoul National University, Kwanak-Gu Shinlim-Dong, Seoul 151-742, Korea.
authors.forename: J
authors.initials: J
authors.lastname: Jung
authors.forename: H
authors.initials: H
authors.lastname: Nam
authors.forename: B
authors.initials: B
authors.lastname: Lee
authors.forename: J O
authors.initials: JO
authors.lastname: Byun
authors.forename: N S
authors.initials: NS
authors.lastname: Kim