5.2        Characterization of a Fiber Bragg Grating under Diametric Loading

5.2.6       Conclusions

The analytical model developed to simulate the diametric load on FBGs correctly predicted the behavior of FBGs written in low-birifringent and the non-linear behavior of FBGs written in polarization maintaining fibers. Nevertheless, the anisotropic sensitivity to transversal strain fields observed experimentally for the gratings in PM fibers could not be completely explained, requiring further investigations.