We experimentally demonstrate that high-reflectivity photosensitive gratings written in optical fibers can be used to detect vibrations that produce length changes of less than 50 nm. This sensitivity to external perturbations can also explain the high-frequency components often observed during the growth of these gratings.
© 1990 Optical Society of America
Sophie LaRochelle, Victor Mizrahi, Kelly D. Simmons, George I. Stegeman, and John E. Sipe, "Photosensitive optical fibers used as vibration sensors," Opt. Lett. 15, 399-401 (1990)