With the development of innovative manufacturing techniques, next-generation fiber Bragg grating (FBG) components can now be produced with the level of performances and reliability that allow mass deployment of these devices for high-end applications. Gain flattening filters (GFF) with low-error function, low-dispersion WDM filters suitable for operation at 40 Gb/s and low group delay ripples multichannel chromatic dispersion compensators are among these high-end applications. Moreover, since FBG is an all-fiber technology, tunability can be easily implemented opening the door for applications such as tunable chromatic dispersion compensator. In this paper, we will present an overview of those high-end applications and show that FBG technology is well suited to overcome the challenges imposed by future optical networks.
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