Parametric amplification in coupled nonlinear waveguides: The role of coupling dispersion


We present the theory of parametric amplification in coupled nonlinear waveguides considering the frequency dependency of the coupling strength. We show that coupling dispersion can indeed compensate for the uncoupled individual waveguides dispersion enabling a substantial tailoring of the gain spectrum. Our theory describes both phase-sensitive and phase-insensitive operational modes, it can be straightforwardly generalized to include arbitrary higher-order waveguide and coupling dispersion and its predictions agree very well with numerical simulations both in the presence and in the absence of waveguide losses. It provides a tool for the design of novel versatile parametric amplifiers based both on coupled integrated waveguides and dual-core fibers too.

Publication DOI:
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences
Additional Information: Copyright © 2023 Shi, Ribeiro and Perego. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Uncontrolled Keywords: Photonics,parametric amplification,coupled waveguides,coupling dispersion,nonlinear couplers,four wave mixing effects
Publication ISSN: 2673-6853
Last Modified: 27 Dec 2023 09:47
Date Deposited: 20 Apr 2023 12:43
Full Text Link:
Related URLs: https://www.fro ... 23.1051294/full (Publisher URL)
PURE Output Type: Article
Published Date: 2023-04-05
Published Online Date: 2023-04-05
Accepted Date: 2023-03-21
Submitted Date: 2022-09-22
Authors: Shi, Minji
Ribeiro, Vitor (ORCID Profile 0000-0001-9616-4584)
Perego, Auro M. (ORCID Profile 0000-0001-5211-6513)



Version: Published Version

License: Creative Commons Attribution

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