In this letter we present a technique for the implementation of Nth-order ultrafast temporal differentiators. This technique is based on two oppositely chirped fiber Bragg gratings in which the grating profile maps the spectral response of the Nth-order differentiator. Examples of 1st, 2nd, and 4th order differentiators are designed and numerically simulated.
Bibliographical note© 2007 OSA
This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OE.15.007196. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Preciado, M., García-Muñoz, V., & Muriel, M. A. (2007). Ultrafast all-optical Nth-order differentiator based on chirped fiber Bragg gratings. Optics Express, 15(12), 7196–7201. https://doi.org/10.1364/OE.15.007196