Chemical composition gratings (CCGs), unlike standard fiber Bragg gratings (FBGs), do not suffer a significant decrease in reflectance or an irreversible wavelength shift when they are exposed to elevated temperatures. To date, the growth of CCGs has been related to the fluorine content of the fibers in which they are written. It is shown that FBGs with high thermal stability, resembling CCGs, can be fabricated in Er3+-doped optical fibers that do not contain any fluorine.
© 2005 Optical Society of America
(060.2290) Fiber optics and optical communications : Fiber materials
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2410) Fiber optics and optical communications : Fibers, erbium
(230.1480) Optical devices : Bragg reflectors
S. Trpkovski, D. J. Kitcher, G. W. Baxter, S. F. Collins, and S. A. Wade, "High-temperature-resistant chemical composition Bragg gratings in Er3+-doped optical fiber," Opt. Lett. 30, 607-609 (2005)