collaborators

5 papers

physics.optics2026

Random number generation from a self-chaotic broad-area VCSEL

Yohann G. Sanvert, Jules Mercadier, Stefan Bittner +1

The nonlinear dynamics of transverse and polarization modes of a broad-area vertical-cavity surface-emitting laser (BA-VCSEL) exhibit, without any external perturbation, chaos with…

physics.optics2026

Synchronization of complex spatio-temporal dynamics with lasers

Jules Mercadier, Stefan Bittner, Marc Sciamanna

Synchronization is the spontaneous alignment of the dynamics of weakly-coupled oscillators. In addition to temporal dynamics like periodic and chaotic oscillations, also the spatio…

physics.optics2025

Polarization and tranverse mode nonlinear dynamics in a multimode VCSEL

Yohann G. Sanvert, Jules Mercadier, Stefan Bittner +2

We theoretically analyze the nonlinear dynamics and routes to chaos in a multimode vertical cavity surface-emitting laser (MM-VCSEL) in free-running operation. Including higher ord…

physics.optics2025

Spontaneous phase locking in a broad-area semiconductor laser

S. Bittner, M. Sciamanna

Broad-area semiconductor lasers are employed in many high-power applications, however, their spatio-temporal dynamics is complex and intrinsically unstable due to the interaction o…

physics.optics2025

Chaos from a free-running broad-area VCSEL

Jules Mercadier, Stefan Bittner, Damien Rontani +1

We experimentally report on the detection of chaos from a free-running commercial broad-area VCSEL without the need for external perturbation such as optical feedback, injection or…