title: Large temperature sensitivity of Sagnac loop interferometer based on the birefringent holey fiber filled with metal indium.
abstract: The large temperature sensitivity of the Sagnac loop interferometer based on the birefringent holey fiber filled with metal indium was experimentally demonstrated. The temperature sensitivities of the wavelength shift of the interferometer and the birefringence the fiber with indium were measured to be -6.3 nm/K and -3.3x10(-6) /K, respectively. The large temperature sensitivity of the fiber was explained by introduction of the fiber birefringence change originated from the large thermal expansion property of the metal indium at the elevated temperature.
authors.affiliation: Advanced Photonics Research Institute (APRI), Gwangju Institute of Science and Technology (GIST), Gwangju 500-712, South Korea. bhkim@gist.ac.kr
authors.forename: Bok Hyeon
authors.initials: BH
authors.lastname: Kim
authors.forename: Seung Ho
authors.initials: SH
authors.lastname: Lee
authors.forename: Aoxiang
authors.initials: A
authors.lastname: Lin
authors.forename: Chang-Lyoul
authors.initials: CL
authors.lastname: Lee
authors.forename: Jongmin
authors.initials: J
authors.lastname: Lee
authors.forename: Won-Taek
authors.initials: WT
authors.lastname: Han