Xinghu Fu

Fast-swept OFDR interrogation of inhomogeneous WFBG arrays using a Cleaved-end Fresnel reference and adaptive spectral reconstruction

Fast-swept optical frequency domain reflectometry (OFDR) enables high-rate interrogation of weak-reflection fiber Bragg grating (WFBG) arrays, but its performance is limited by laser sweep nonlinearity and spectral variations among individual gratings. An in-line self-calibrated...