Femtosecond IR Laser Inscription of Bragg Gratings in Single- and Multimode Fluoride Fibers

• Published in: IEEE photonics technology letters Vol. 18; no. 24; pp. 2686 - 2688
• Main Authors: Grobnic, D., Mihailov, S.J., Smelser, C.W.
• Format: Journal Article
• Language: English
• Published: New York IEEE 15-12-2006; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Bragg gratings; Diffraction gratings; Femtosecond; Fiber gratings; Fiber lasers; Fibers; fluoride fiber; Fluorides; Gratings (spectra); Laser beams; Lasers; Optical fiber communication; Optical fibers; Optical microscopy; Optical waveguides; Silicon compounds; Spectra; Ultrafast optics
• ISSN: 1041-1135; 1941-0174
• DOI: 10.1109/LPT.2006.887777

We report for the first time the fabrication of fiber Bragg gratings in both single- and multimode undoped fluoride fibers using femtosecond 800-nm radiation and a phase mask. Grating spectra are presented along with an evaluation of the grating behavior at high temperature. Index changes of ~2times10 -4 are achieved