Abstract
An optical magnetic field sensor using reflective Lithium niobate (LiNbO3) integrated optical waveguide Mach-Zehnder interferometer (MZI) has been proposed, designed and fabricated. The bare chip size of the sensor is microminiaturized as small as 20×5×0.5mm3. Experiment results reveal that the sensor has wide frequency response from 10MHz to 2GHz with variation less than ±3.3dB. Besides, the input/output of the sensor exhibit linear relationship as the magnetic field varied from 69.4 dBμA/m to 129.4 dBμA/m. The minimum detectable magnetic field is 65.4 dBμA/m and the dynamic range of the sensor is more than 60dB.
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Schedule a callMore From: Optik - International Journal for Light and Electron Optics
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