Photonic fractal differentiator based on Moiré type addressed fiber Bragg structure

Oleg G. Morozov; Airat Zh. Sakhabutdinov; Timur A. Agliullin; Ilnur I. Nureev; Artem A. Kuznetsov; Rinat Sh. Misbakhov; Rustam Sh. Misbakhov

doi:10.1117/12.3026651

6 September 2024 Photonic fractal differentiator based on Moiré type addressed fiber Bragg structure

Oleg G. Morozov, Airat Zh. Sakhabutdinov, Timur A. Agliullin, Ilnur I. Nureev, Artem A. Kuznetsov, Rinat Sh. Misbakhov, Rustam Sh. Misbakhov

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Proceedings Volume 13168, Optical Technologies for Telecommunications 2023; 1316816 (2024) https://doi.org/10.1117/12.3026651
Event: Optical Technologies for Telecommunications 2023, 2023, Kazan, Russian Federation

Abstract

It is well known that the speed limitations inherent in conventional electronics can be overcome using photonic circuits, one of the main building blocks of which is a time differentiator. This device provides the time derivative of the complex envelope of an arbitrary input optical signal. Possible applications include optical pulse shaping, optical computing, information processing systems and ultra-high-speed coding, among other applications. The paper discusses the principles of constructing fractional order differentiators. Using the example of an asymmetric fiber Bragg grating with a π-phase shift operating in reflection, based on addressed fiber Bragg structure of Moiré type, the possibility of implementing a photonic fractional differentiator is shown. We present modeling of the characteristics of the spectral structures of a differentiator, which uses gratings of the same length, but with different modulation depths on both sides of the localization of the π-phase shift, using a new method of homogeneous layers.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Oleg G. Morozov, Airat Zh. Sakhabutdinov, Timur A. Agliullin, Ilnur I. Nureev, Artem A. Kuznetsov, Rinat Sh. Misbakhov, and Rustam Sh. Misbakhov "Photonic fractal differentiator based on Moiré type addressed fiber Bragg structure", Proc. SPIE 13168, Optical Technologies for Telecommunications 2023, 1316816 (6 September 2024); https://doi.org/10.1117/12.3026651

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KEYWORDS

Fiber Bragg gratings

Fractal analysis

Refractive index

Modeling

Structured optical fibers

Fourier transforms

Phase shifts

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