Research Article
Sensitivity Analysis of Phase Matched Turning Point Long Period Fiber Gratings
@INPROCEEDINGS{10.1007/978-3-319-73712-6_26, author={Monika Gambhir and Shilpi Gupta}, title={Sensitivity Analysis of Phase Matched Turning Point Long Period Fiber Gratings}, proceedings={Future Internet Technologies and Trends. First International Conference, ICFITT 2017, Surat, India, August 31 - September 2, 2017, Proceedings}, proceedings_a={ICFITT}, year={2018}, month={2}, keywords={LPFG (Long Period Fiber Grating) SRI (Surrounding Refractive Index) LP (Linearly Polarized)}, doi={10.1007/978-3-319-73712-6_26} }- Monika Gambhir
Shilpi Gupta
Year: 2018
Sensitivity Analysis of Phase Matched Turning Point Long Period Fiber Gratings
ICFITT
Springer
DOI: 10.1007/978-3-319-73712-6_26
Abstract
This study presents characterization of phase matched turning point long period gratings. It helps in optimizing the grating parameters of these long period gratings viz. grating period, length of grating, for maximum sensitivity. We have calculated spectral variation of refractive indices, effective refractive indices of fundamental and circularly symmetric cladding modes and grating periods. Phase matching curves for first 14 cladding modes have been obtained. Weakly-guiding analysis is used to compute effective refractive indices for the fundamental guided mode and cladding modes. Ultra high sensitivity at turn around points have been verified analytically with the help of general sensitivity factor. LP cladding mode is observed to be the most sensitive.