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[IEEE 2019 18th International Conference on Optical Communications and Networks (ICOCN) - Huangshan, China (2019.8.5-2019.8.8)] 2019 18th International Conference on Optical Communications and Networks (ICOCN) - Optimized Sensitivity Analysis of Phase Modulated Optical Fiber Sensor
摘要： the Influence of different oxide overlayers on performance of phase modulated optical fiber sensor coated with graphene is reported. The simulation model is constructed according to the the transmission matrix theory. In this work, we improve the phase sensitivity of the sensor by adding different oxides coatings include magnesium oxide (MgO), aluminum oxide (Al2O3), lutetium oxide (Lu2O3), scandium oxide (Sc2O3) and tellurium dioxide (TeO2) on the surface of monolayer graphene. The phase sensitivity of the sensor is optimized by the type and thickness of oxide coating. The phase sensitivity of the sensor with 35 nm TeO2 coating on the surface of monolayer graphene achieved 1.3467× 105deg/RIU.
关键词： phase modulated,refractive index,optical fiber sensor,D-type optic fiber,oxide
更新于2025-09-16 10:30:52
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[IEEE 2019 Chinese Control And Decision Conference (CCDC) - Nanchang, China (2019.6.3-2019.6.5)] 2019 Chinese Control And Decision Conference (CCDC) - Research on Detection and Recognition Algorithm of Optical Fiber for Surface Defects
摘要： Based on machine vision technology, this paper studies the detection and identification technology of surface defects of optical fiber communication cables. This paper uses mathematical geometry and linear interpolation method to convert cable cylinder into plane. Based on the gray-scale characteristics of the pinhole in the picture, gray threshold and gradient amplitude are used to improve the detection rate of the pinhole. Finally, the experimental results show that this algorithm can all-around detect the surface defects of optical cable, with the minimum detection area of 0.05mm2, the diameter detection accuracy of 0.1mm, and real-time alarm for defects. In the case of a lot of dust, ensure the correct detection of conventional defects on the surface of the cable, the correct detection rate of the pinhole reaches 70%, reducing the false alarm rate of dust and water stains.
关键词： Optic Fiber,Pinhole Detecting,Defect Detecting,Machine Vision
更新于2025-09-11 14:15:04