Comparison of regenerated fiber Bragg gratings properties in standard and B/Ge co-doped single-mode silica fibers

Elimination of temperature cross-sensitivity for polymer FBG-based humidity sensor by gamma radiation treatment

“…In recent years, perfluorinated polymer optical fibers (POFs) have been attracting significant attention from researchers due to their low attenuation in telecom transparency windows comparing to other POFs [1]. Besides telecom applications, various sensing principles which were well developed for silica fibers (for example, Brillouin and Rayleigh distributed sensing [2][3], intermodal interference sensing [4][5], and fiber Bragg gratings (FBGs) [6][7]), have been investigated for perfluorinated POFs as well [8][9][10][11][12][13][14][15]. Perfluorinated POFs are known to have a low photosensitivity, however the development of the direct FBG inscription method using a femtosecond laser pulses have been serving as an additional driver for the interest to this type of fiber [16].…”

Effect of Peak Tracking Methods on FBG Calibration Derived by Factorial Design of Experiment

“…They have been used to monitor temperature, humidity, strain, external refractive index, and bending [11][12][13][14][15][16][17][18][19]. Moreover, FBG-based sensors can be operated in harsh environments with severe physical/chemical conditions such as very high temperature, and high pressure [20][21][22][23][24][25][26].…”