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arXiv · 2401.11886

Time Localized Tilted Beams in Nearly-Degenerate Laser Cavities

A. Bartolo·N. Vigne·M. Marconi·G. Beaudoin·K. Pantzas·I. Sagnes·A. Garnache·M. Giudici
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Abstract

We show that nearly degenerate Vertical External-Cavity Surface-Emitting Lasers emit tilted beams of time localized structures, i.e. mode-locked light pulses which can be individually addressed. These beams feature a Gaussian profile and they are emitted in pairs with opposite transverse k-vector. Because they are phase locked, their interference leads to a non homotetic pattern in the near-field emission of the laser. When a single pair is emitted this is a stripe pattern. Our analysis discloses the role of spherical aberrations of the cavity in stabilizing this spatio-temporal mode-locked regime and in selecting the value of the transverse wavevector.

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A. Bartolo, N. Vigne, M. Marconi, G. Beaudoin, K. Pantzas, I. Sagnes, A. Garnache, M. Giudici. 2024-02-14. Time Localized Tilted Beams in Nearly-Degenerate Laser Cavities. https://arxiv.org/abs/2401.11886

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