RESUMO
A modulator assembly that excites longitudinal vibrations in a short (19 cm) silica fiber segment is described. A physical model of the modulator assembly is used to theoretically predict the behavior of longitudinal vibrations in the fiber segment. The longitudinal vibrations are experimentally characterized using an intrinsic fiber Bragg grating. Experimental results are compared to theoretical predictions.
RESUMO
A novel interference enhanced magnetooptic multilayered memory structure with a birefringent superstrate that converts incident linear polarization to rotated linear polarization on reflection is introduced. This structure employs a birefringent superstrate; several different ways of implementing a birefringnet superstrate are proposed. The structure is analyzed using a rigorous method described previously [J. Opt. Soc. Am. A 4, 1720 (1987)]. The reflection characteristics of the structure as functions of incident angle are given.