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New fabrication technique of fibre Bragg gratings with arbitrary chirp and wavelength for chromatic dispersion compensation

We present here a new method allowing the fabrication of long gratings with any kind of chirp at any wavelength in a range of about 30 nm for chromatic dispersion compensation. We propose a new method, simple, cheap and versatile, allowing the realization of gratings with arbitrary chirp and wavelength using a unique phase mask with a constant periodicity. Those gratings could be then concatenated for multichanel operation.