Title :
Fiber Bragg grating fabrication for dispersion slope compensation
Author :
Williams, J.A.R. ; Everall, L.A. ; Bennion, I. ; Doran, N.J.
Author_Institution :
Dept. of Electron. Eng. & Appl. Phys., Aston Univ., Birmingham, UK
Abstract :
Group-delay dispersion slope causes signal deterioration in long-distance high-data-rate communication systems. We report the fabrication of high-quality apodized and chirped fiber gratings with dispersion slopes as high as -1800 ps/nm/sup -2/ over a 0.7-mn bandwidth-sufficient to compensate for the dispersion slope of >25000-km length of standard fiber at a wavelength of 1550 nm. We believe this is the first time that fiber Bragg gratings have been specifically designed and fabricated for dispersion slope compensation. The fabrication technique uses a standard unchirped phase mask and two scans of the inscribing UV beam.
Keywords :
chirp modulation; compensation; diffraction gratings; masks; optical design techniques; optical fibre dispersion; optical fibre fabrication; optical images; optical modulation; 1550 nm; 25000 km; chirped fiber gratings; dispersion slope; dispersion slope compensation; fiber Bragg grating fabrication; fiber Bragg gratings; group-delay dispersion slope; high-quality apodized fiber gratings; inscribing UV beam scanning; long-distance high-data-rate communication systems; signal deterioration; standard fiber; unchirped phase mask; Bragg gratings; Chirp; Fabrication; Fiber gratings; Optical fiber communication; Optical fiber devices; Optical fiber dispersion; Optical fibers; Optical refraction; Velocity control;
Journal_Title :
Photonics Technology Letters, IEEE
