Time Localized Tilted Beams in Nearly-Degenerate Laser Cavities
Optics
2024-02-15 v2
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.
Keywords
Cite
@article{arxiv.2401.11886,
title = {Time Localized Tilted Beams in Nearly-Degenerate Laser Cavities},
author = {A. Bartolo and N. Vigne and M. Marconi and G. Beaudoin and K. Pantzas and I. Sagnes and A. Garnache and M. Giudici},
journal= {arXiv preprint arXiv:2401.11886},
year = {2024}
}