Dispersion-compensating fiber Bragg gratings with ~99.9% reflectivity that are made by continuous apodization and phase control are demonstrated. These strong dispersion-compensating gratings provide precision second-order, third-order, or even more complex dispersion compensation, as well as sufficient transmission isolation to be used at add–drop stages without additional filtering. A 99.84% grating with a constant -700-ps/nm dispersion and a 99.94% grating with dispersion varying linearly from 1000 to -1000 ps/nm are demonstrated.
© 2003 Optical Society of America
(050.2770) Diffraction and gratings : Gratings
(050.5080) Diffraction and gratings : Phase shift
(060.2310) Fiber optics and optical communications : Fiber optics
(230.1480) Optical devices : Bragg reflectors
Yisi Liu, Liang Dong, J. J. Pan, and Claire Gu, "Strong phase-controlled fiber Br agg gratings for dispersion compensation," Opt. Lett. 28, 786-788 (2003)