Optics Express · 2018 · 20 citations · 23 references
EngineeringElectrical EngineeringOptoelectronicsPhotonicsSensorsFiber OpticsOptical Communication SystemsOptical FibersOptical SensingOptical Signal ProcessingPolarization OpticsCoding SchemesFiber EngineeringFiber SensorsFiber-optic SensingFiber-optic SensorsOptical Fiber SensorsPolarization SwitchingPolarization-division Multiplexing
An approach to eliminating the effect of polarization pulling in Golay-coded Brillouin optical time domain analysis (BOTDA) fiber sensor by employing polarization division multiplexing (PDM) pulse coding is presented. Three different schemes, including polarization switching, polarization scrambling, and PDM pulse coding are implemented and compared. Experimental results indicate that sensing stability is enhanced by ~2.5 times using the proposed scheme.
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