Stable all-fiber photonic temporal differentiator using a long-period fiber grating interferometer

Abstract A novel configuration of all-fiber photonic temporal differentiator optimized for tens-of-gigahertz processing bandwidth is suggested and experimentally demonstrated. This device covers the gap in terms of processing bandwidth between the two previously-demonstrated all-fiber designs, namely the fiber Bragg grating-based differentiator ( 100–200 GHz).

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