Analysis of dispersion compensation using linearly chirped fiber gratings with uniform coupling profile

摘要

The use of linearly chirped fiber Bragg gratings with uniform coupling profile for compensating the dispersion of 100 km standard optical fiber link at 1550 nm are investigated theoretically for practical grating fabrication consideration. Numerical results show that a 40 mm long linearly chirped fiber Bragg grating with uniform coupling profile and optimal coupling strength can almost perfectly compensate the dispersion of 100 km standard communication fiber link up to 20 GHz. The dispersion delay curve of the fiber grating exhibits certain oscillation feature, and this does not significantly affect its dispersion compensation ability according to our calculations.