Fiber Bragg grating fabrication for dispersion slope compensation |
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Authors: | J.A.R. Williams L.A. Everall I. Bennion N.J. Doran |
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Affiliation: | Dept. of Electron. Eng. & Appl. Phys., Aston Univ., Birmingham, UK; |
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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. |
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