title: Multiplexing of six micro-displacement suspended-core Sagnac interferometer sensors with a Raman-Erbium fiber laser.
abstract: This work experimentally demonstrates a long-range optical fiber sensing network for the multiplexing of fiber sensors based on photonic crystal fibers. Specifically, six photonic crystal fiber sensors which are based on a Sagnac interferometer that includes a suspended-core fiber have been used. These sensors offer a high sensitivity for micro-displacement measurements. The fiber sensor network presents a ladder structure and its operation mode is based on a fiber ring laser which combines Raman and Erbium doped fiber amplification. Thus, we show the first demonstration of photonic crystal fiber sensors for remote measurement applications up to 75 km.
authors.affiliation: Department of Electric and Electronic Engineering, Universidad Pública de Navarra, 31006, Pamplona, Navarra, Spain.
authors.forename: Mikel
authors.initials: M
authors.lastname: Bravo
authors.forename: Montserrat
authors.initials: M
authors.lastname: Fernández-Vallejo
authors.forename: Mikel
authors.initials: M
authors.lastname: Echapare
authors.forename: Manuel
authors.initials: M
authors.lastname: López-Amo
authors.forename: J
authors.initials: J
authors.lastname: Kobelke
authors.forename: K
authors.initials: K
authors.lastname: Schuster
mesh_terms: D005336:Fiber Optic Technology / Q000295:instrumentation*; D007368:Interferometry / Q000295:instrumentation*; D053844:Lasers, Solid-State; D008904:Miniaturization; D010783:Photometry / Q000295:instrumentation*; D013059:Spectrum Analysis, Raman / Q000295:instrumentation*