We report on a detailed study of the inscription and characterization of fiber Bragg gratings (FBGs) in
commercial step index polymer optical fibers (POFs). Through the growth dynamics of the gratings, we
identify the effect of UV-induced heating during the grating inscription. We found that FBGs in annealed
commercial POFs can offer more stable short-term performance at both higher temperature and larger strain.
Furthermore, the FBGs' operational temperature and strain range without hysteresis was extended by the
annealing process. We identified long-term stability problem of even the annealed POF FBGs.
NOTICE: this is the author’s version of a work that was accepted for publication in Optics Communications. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Optics Communications, [VOL 284, ISSUE 1, (2011)] DOI 10.1016/j.optcom.2010.08.069
- Grating Polymer
- Optical fiber