Two-dimensional vector accelerometer based on orthogonal Bragg gratings inscribed in a standard single-mode fiber cladding
Fengyi Chen, Xingyong Li, Ruohui Wang, Xueguang Qiao
Abstract
We propose and demonstrate a novel, to the best of our knowledge, two-dimensional vector accelerometer based on orthogonal cladding fiber Bragg gratings (FBGs) inscribed in a standard single-mode fiber (SMF). The cladding FBGs are written by a femtosecond laser point-by-point technique and run parallel with the core. We experimentally demonstrate that the two orthogonal components of acceleration can be directly detected using simplified power-referenced detection. Using this structure, we can simultaneously obtain orientation information and acceleration in a SMF.
Topics & Concepts
OpticsFiber Bragg gratingCladding (metalworking)Inscribed figureCladding modePHOSFOSMaterials scienceAccelerometerSingle-mode optical fiberFiber optic sensorPolarization-maintaining optical fiberFiber laserPhotonic-crystal fiberFemtosecondOptical fiberLaserPhysicsMathematicsGeometryQuantum mechanicsMetallurgyAdvanced Fiber Optic SensorsPhotonic and Optical DevicesAdvanced Fiber Laser Technologies