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Published in: Optical and Quantum Electronics 4/2023

01-04-2023

All-optical half adder and subtractor circuits using cross-phase modulation based switching effect in the phase-shifted fiber Bragg gratings

Authors: Rakesh Choudhary, Ajay Kumar

Published in: Optical and Quantum Electronics | Issue 4/2023

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Abstract

Fiber Bragg Grating (FBG) is an up-and-coming technology for all-optical switching and sensing applications. The proposed manuscript deals with the all-optical sensing and switching mechanism of the non-linear Fiber Bragg Grating structure. Initially, the manuscript describes a detailed mathematical analysis of coupled-mode theory for the Fiber Bragg Grating structure and its utility as sensors and all-optical switches. The manuscript introduces the concept of all-optical switching based on the cross-phase modulation effect in a phase-shifted FBG. The optical pump signals are used to control the switching of a weak continuous wave optical signal. The switching characteristics of the FBG device are investigated to show the transferring process of the information from the pump signal to the weak continuous wave signal. Finally, cascaded structures of phase-shifted FBGs with various combinations of pump signals and phase shifts are used to design all-optical half-adder and subtractor circuits. The analysis of the results shows the suitability of the proposed FBG designs as sensors and switching units in the form of all-optical half-adder and half-subtractor circuits.

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Literature
Metadata
Title
All-optical half adder and subtractor circuits using cross-phase modulation based switching effect in the phase-shifted fiber Bragg gratings
Authors
Rakesh Choudhary
Ajay Kumar
Publication date
01-04-2023
Publisher
Springer US
Published in
Optical and Quantum Electronics / Issue 4/2023
Print ISSN: 0306-8919
Electronic ISSN: 1572-817X
DOI
https://doi.org/10.1007/s11082-023-04614-1

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