SIMULATION AND ANALYSIS OF GAUSSIAN APODIZED FIBER BRAGG GRATING STRAIN SENSOR МАТЕМАТИЧЕСКАЯ МОДЕЛЬ ДАТЧИКА НАПРЯЖЕНИЙ НА ОСНОВЕ ВОЛОКОННО-ОПТИЧЕСКОЙ БРЭГГОВСКОЙ РЕШЕТКИ С ГАУССОВЫМ ПРОФИЛЕМ

摘要: In this paper, the performance of various apodization profiles (uniform, hyperbolic tangent and gaussian) for un-chirped Fiber Bragg Grating is investigated. Apodization techniques are used to get optimized reflection spectra with high side lobe suppression. The simulations done by solving coupled mode equations in MATLAB using transfer matrix method which explains relationship between guided modes. result shows that Gaussian profile suppresses level much more efficiently than uniform profiles. apodized indicate strain producing wavelength shift. Opti-grating gives an idea about efficiency suggested scheme analyze measurements giving a linear response.