Ri. Laming et al., A DISPERSION TUNABLE GRATING IN A 10-GB S 100-220-KM-STEP INDEX FIBERLINK/, IEEE photonics technology letters, 8(3), 1996, pp. 428-430
A dispersion tunable 40 mm fiber grating has been employed in a 10 Gb/
s, step-index fiber link. Dispersion is effectively compensated for sp
an lengths in the range 103-217 km. However, at the longer spans the i
ncreased dispersion of the grating results in a reduced bandwidth and
therefore its center wavelength is found to be critical (+/-0.005 nm).