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Tunable all-optical negative multitap microwave filters based on uniform fiber Bragg gratings
1Instituto de Ciencia de los Materials, Universidad de Valencia, Dr. Moliner 50, 46100 Burjassort, Valencia, Spain.
Optics Letters
|August 9, 2003
Abstract:
We present a novel and simple technique for obtaining transversal filters with negative coefficients by using uniform fiber Bragg gratings. We demonstrate a wide tuning range, good performance, low cost, and easy implementation of multitap filters in an all-optical passive configuration in which negative taps are obtained by use of the transmission of a broadband source through uniform Bragg gratings.