Abstract
Fiber-grating devices have attracted a lot of attention since the discovery of UV-induced photosensitivity1. These devices have become a mainstay in fiber-optic communication systems, because they provide the advantages of low loss, polarisation insensitivity, high reliability, and compatibility with the transmission line. They have become the device-schematic of choice for a variety of functions such as signal or pump de/multiplexing2, wavelength3 or polarisation4 monitoring, tunable dispersion compensation5, and static6,7 as well as dynamic spectral shaping8,9, to name a few. Common to several fiber-devices is the single mode fiber (SMF), which serves as a platform to propagate the signal. The device effect itself is due to some extraneously introduced apodization or chirp profile. In this respect, they are similar to bulk-optic devices.
© 2003 Optical Society of America
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