Title :
Grating compensation of third-order fiber dispersion
Author :
Stern, Miklos ; Heritage, Jonathan P. ; Chase, E.W.
Author_Institution :
Symbol Technologies, Bohemia, NY, USA
fDate :
12/1/1992 12:00:00 AM
Abstract :
Subpicosecond optical pulses propagating in single-mode fibers are severely distorted by third-order dispersion even at the fiber´s zero-dispersion wavelength (λ0). Using cross-correlation techniques, the authors measured the broadening of a 100-fs pulse to more than 5 ps after passing through 400 m of fiber near λ0. The measured asymmetric and oscillatory pulse shape is in agreement with calculations. A grating and telescope apparatus was configured to simultaneously equalize both third- and second-order dispersion for wavelengths slightly longer than λ 0. Nearly complete compensation has been demonstrated for fiber lengths of 400 m and 3 km of dispersion-shifted fiber at wavelengths of 1560-1580 nm. For the longer fibers, fourth-order dispersion due to the grating becomes important
Keywords :
compensation; diffraction gratings; optical dispersion; optical fibres; 100 fs; 1560 to 1580 nm; 3 km; 400 m; 5 ps; IR; cross-correlation techniques; diffraction gratings; dispersion-shifted fiber; fourth-order dispersion; grating; grating compensation; measured asymmetric; oscillatory pulse shape; pulse broadening; second-order dispersion; single-mode fibers; sub ps optical pulse propagation; subpicosecond; telescope; third-order dispersion; third-order fiber dispersion; zero-dispersion wavelength; Distortion measurement; Fiber gratings; Optical distortion; Optical propagation; Optical pulses; Pulse measurements; Pulse shaping methods; Shape measurement; Telescopes; Wavelength measurement;
Journal_Title :
Quantum Electronics, IEEE Journal of
