Arrayed Waveguide Gratings

Principle of Arrayed Waveguide Gratings

Arrayed waveguide gratings (AWG) are commonly used as optical (de)multiplexers in wavelength division multiplexed (WDM) systems. The book describes the AWG design procedure by applying a new software tool. An INTERCONNECT compact model is initially used for quick analysis.

Temperature and wavelength changes in fiber optic gratings

In this paper we review the literature related to the long-term wavelength drift of FBGs at high temperature and provide our recent results of more than 4000 h of high temperature testing in the 900–1000 °C range. As the applications of fiber Bragg gratings (FBGs) continue to grow and become more advanced, it becomes necessary to understand their behavior when exposed to high temperatures in unique situations. This is achieved by creating a periodic variation in the refractive index of the fiber core, which generates a.

Planar optical waveguide coupling requirements

The problem of coupling electromagnetic or acoustic waves into a dielectric waveguide with minimal energy loss is formulated as a structural (topology) op-timization problem. Optimal solutions are shown.