Ultrahigh temperature Raman-based distributed optical fiber sensor with gold-coated fiber
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AuthorLaarossi, Ismail; Ruiz Lombera, Rubén; Quintela Incera, María Ángeles; Mirapeix Serrano, Jesús María; Lima Almeida, Domingo; Solana, David; López Higuera, José Miguel
An ultrahigh temperature distributed sensor based on a Raman optical-time-domain-reflectometry (ROTDR) and two types of fibers: a standard multimode fiber and multimode gold-coated fiber are experimentally validated in this paper. A calibration technique has been implemented to correct the dynamic variation of the optical loss in the gold-coated fiber. Distributed temperature measurements up to 600º C have been carried out.