Investigation of Raman fiber laser temperature probe based on fiber Bragg gratings for long-distance remote sensing applications | Zendy

Ju Han Lee | Zendy; Junhee Kim | Zendy; YoungGeun Han | Zendy; Sang-Hyuck Kim | Zendy; Sang Bae Lee | Zendy

Open Access

Investigation of Raman fiber laser temperature probe based on fiber Bragg gratings for long-distance remote sensing applications

Author(s) -

Ju Han Lee,

Junhee Kim,

YoungGeun Han,

Sang-Hyuck Kim,

Sang Bae Lee

Publication year - 2004

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/opex.12.001747

Subject(s) - fiber bragg grating , materials science , optics , phosfos , laser , fiber laser , raman spectroscopy , fiber optic sensor , temperature measurement , sensitivity (control systems) , optical fiber , optoelectronics , photonic crystal fiber , polarization maintaining optical fiber , physics , wavelength , quantum mechanics , electronic engineering , engineering

We demonstrate a practical and simple, all fiber Bragg grating (FBG) based Raman laser sensing probe for long-distance, remote temperature sensing application. Using multiple laser cavities based on FBG's and a tunable chirped FBG, we obtain the simultaneous multi-channel remote temperature sensing operation at a 50 km distance. The temperature sensitivity is measured to be 7.15 pm/ degrees C.

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