Published In

Optics Continuum

Document Type

Article

Publication Date

4-15-2026

Subjects

Fiber Laser Amplifiers -- dynamical systems

Abstract

We apply a known theorem for simplifying dynamical systems with bounded error to a specific optical fiber waveguide problem, thereby supplementing the physical intuition and heuristics used in the optics community with proper mathematical justification. Using techniques from the averaging theory of dynamical systems, a reliable accelerated model based on the coupled mode theory (CMT) approach for a common fiber laser amplifier application is derived. Computational testing reveals that this accelerated model achieves a ∼4000x increase in computational speed compared to the CMT model while preserving high accuracy in key figures of merit such as output power and amplification efficiency. Further, we argue that adopting our recommended approximations within the reduced model framework enables the model to be applied to a wider set of amplifier types and configurations than the current (comparable) reduced models found in the literature.

Rights

Copyright (c) 2026 The Authors

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

DOI

10.1364/OPTCON.586540

Persistent Identifier

https://archives.pdx.edu/ds/psu/44643

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