Abstract

A model based on diffusion of dopants in a periodic structure has been applied to describe thermal decay of chemical composition gratings in fluorine–germanium-doped silica fibers. The good agreement between previously reported values and the diffusion coefficients derived here from experiments and models in the 1000–1200 °C temperature range indicate that fluorine diffusion is the main mechanism of grating decay. Experimental results also indicate that the presence of phosphorous significantly increases the decay rate of chemical composition gratings.

© 2002 Optical Society of America

Growth dynamics of chemical composition gratings in fluorine-doped silica optical fibers

Michael Fokine
Opt. Lett. 27(22) 1974-1976 (2002)

Thermal stability of oxygen-modulated chemical-composition gratings in standard telecommunication fiber

Michael Fokine
Opt. Lett. 29(11) 1185-1187 (2004)

Formation of thermally stable chemical composition gratings in optical fibers

Michael Fokine
J. Opt. Soc. Am. B 19(8) 1759-1765 (2002)

Grating formation in pure silica-core fibers

Jacques Albert, Michael Fokine, and Walter Margulis
Opt. Lett. 27(10) 809-811 (2002)

Influence of pre-annealing on the thermal regeneration of fiber Bragg gratings in standard optical fibers

Patrik Holmberg, Fredrik Laurell, and Michael Fokine
Opt. Express 23(21) 27520-27535 (2015)