A New Thermodynamic Approach to Multimode Fibre Self-cleaning and Soliton Condensation

Mario Zitelli

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arXiv · 2404.00480

A New Thermodynamic Approach to Multimode Fibre Self-cleaning and Soliton Condensation

Mario Zitelli

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Abstract

A new thermodynamic theory for optical multimode systems is proposed. Theory is based on a weighted Bose-Einstein law, and includes the state equation, the fundamental equation for the entropy and a metric to measure the accuracy of the thermodynamic approach. The theory is used to compare the experimental results of two propagation regimes in multimode fibres, specifically the self-cleaning in the normal chromatic dispersion region and the soliton condensation in the anomalous dispersion region. Surprising similarities are found in terms of thermodynamic parameters, suggesting a common basis for the thermalisation processes observed in the two propagation regimes.

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Mario Zitelli. 2024-03-30. A New Thermodynamic Approach to Multimode Fibre Self-cleaning and Soliton Condensation. https://arxiv.org/abs/2404.00480

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