Proceedings PaperHybrid modes analysis for cladding mode resonance peaks in tilted fiber Bragg gratings
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In this paper, the hybrid modes are used to analyze the cladding mode resonances of TFBGs and compared with those using the linear polarization modes. As the TFBG spectrum span is larger than 30nm, the material dispersion effect can not be ignored and must be considered for accurately analyzing the cladding mode resonance peaks. Both analysis and experimental results will be presented, and they are well matched. By accurately analyzing the higher order cladding mode resonances with double or triple peaks, the tracking of higher order cladding mode resonances is facilitated, and these modes have the largest differential strain and index sensitivities relative to the core modes.