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arXiv · 2306.11359

Aberration-driven tilted emission in degenerate cavities

S. V. Gurevich·F. Maucher·J. Javaloyes
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Abstract

The compensation of chromatic dispersion opened new avenues and extended the level of control upon pattern formation in the \textit{temporal domain}. In this manuscript, we propose the use of a nearly-degenerate laser cavity as a general framework allowing for the exploration of higher contributions to diffraction in the \textit{spatial} domain. Our approach leverages the interplay between optical aberrations and the proximity to the self-imaging condition which allows to cancel or reverse paraxial diffraction. As an example, we show how spherical aberrations materialize into a transverse bilaplacian operator and, thereby, explain the stabilization of temporal solitons travelling off-axis in an unstable mode-locked broad-area surface-emitting laser. We disclose an analogy between these regimes and the dynamics of a quantum particle in a double well potential.

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S. V. Gurevich, F. Maucher, J. Javaloyes. 2023-06-20. Aberration-driven tilted emission in degenerate cavities. https://doi.org/10.1103/physrevresearch.6.013166

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