Six air inclusions are found in the structure of examples these devices bas
Six air inclusions are found in the structure of examples these devices based on a grapefruit  microstructure. Chirping alters the variational period in the structure of the Bragg equipped type of these  objects. They are primarily driven by attached VCSELS.  These objects are dopped with Erbium and they make  up SONET links. WDM allows these objects to be bidirectional and increases the amount of work they can do. They  can be single or multimode depending their size and underlying materials. These objects consist of a core  surrounded by cladding with a different dielectric. In the United States, a fair amount of unused "dark" this exists in  the ground. The original concept for the Thunderbolt connector used this type of medium. These devices work  thanks to total internal reflection. For 10 points, name this light based communication medium used by FiOS.
Six air inclusions are found in the structure of examples these devices based on a grapefruit  microstructure.
fiber optic cable [or optical cable ]