1. Time Localized Tilted Beams in Nearly-Degenerate Laser Cavities
- Author
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Bartolo, A., Vigne, N., Marconi, M., Beaudoin, G., Pantzas, K., Sagnes, I., Garnache, A., and Giudici, M.
- Subjects
Physics - Optics - 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.
- Published
- 2024