Design of an ultra-broadband all-optical fractional differentiator with a long-period fiber grating |
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| Authors: | Christian Cuadrado-Laborde Miguel V Andr��s |
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| Institution: | 1. CONICET, P.O. Box 3, Gonnet 1897, La Plata, Buenos Aires, Argentina
2. Departamento de F??sica Aplicada y Electromagnetismo, ICMUV, Universidad de Valencia, C/Dr. Moliner 50, Burjassot, 46100, Valencia, Spain
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| Abstract: | We propose an all-optical in-fiber ultra-broadband fractional differentiator. We numerically demonstrate that a long-period grating inherently performs the temporal fractional differentiation on an optical pulse propagating in the fundamental fiber mode, within a certain spectral bandwidth around the resonance frequency. The device shows a good accuracy calculating the fractional time derivatives of the complex field of THz-bandwidth optical pulses. |
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