Two-Step-Model of Photosensitivity in Cerium-doped Fibers


The photosensitivity of various cerium-doped fibers has been experimentally investigated for both excimer- and femtosecond-laser illumination. The results of single-pulse, few-pulse and multi-pulse inscription of fiber-Bragg-gratings with both laser systems and the thermal aging of those gratings demonstrated the restrictions of the conventional color center model for cerium-doped fibers. To explain the short-term stability of single-pulse gratings against long-term stability of multi-pulse gratings, an extension into a two-step-model was deduced.

photosensitivity, fibers, laser
Elsmann, T., Becker, M., Olusoji, O., Unger, S., Wondraczek, K., Aichele, C., et al. (2019). Two-Step-Model of Photosensitivity in Cerium-doped Fibers (Version publishedVersion, Vol. 9). Version publishedVersion, Vol. 9. Washington D.C. : Optical Society of America.