title: Observation of stimulated Brillouin scattering in polymer optical fiber with pump-probe technique.
abstract: Stimulated Brillouin scattering (SBS) in a perfluorinated graded-index polymer optical fiber (POF) with 120 μm core diameter was experimentally observed for the first time, to the best of our knowledge, at 1.55 μm wavelength with the pump-probe technique. Compared to spontaneous Brillouin scattering previously reported, the Brillouin gain spectrum (BGS) was detected with an extremely high signal-to-noise ratio, even with a short POF (1 m) and scrambled polarization state. We also investigated the BGS dependences on probe power and temperature, which indicate that SBS in a POF measured with this technique can be utilized to develop high-accuracy temperature sensing systems.
authors.affiliation: Precision and Intelligence Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan. ymizuno@sonic.pi.titech.ac.jp
authors.forename: Yosuke
authors.initials: Y
authors.lastname: Mizuno
authors.forename: Masato
authors.initials: M
authors.lastname: Kishi
authors.forename: Kazuo
authors.initials: K
authors.lastname: Hotate
authors.forename: Takaaki
authors.initials: T
authors.lastname: Ishigure
authors.forename: Kentaro
authors.initials: K
authors.lastname: Nakamura