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Pré-Publication, Document De Travail Année : 2019

Mesoscopic limit cycles in coupled nanolasers

Résumé

Two coupled semiconductor nanolasers exhibit a mode switching transition, theoretically characterized by limit cycle $-$or mode-beating$-$ oscillations. Their decay rate is vanishingly small in the thermodynamic limit, i.e. when the spontaneous emission noise $\beta$-factor tends to zero. We provide experimental evidence of mesoscopic limit cycles $-$with $\sim 10^3$ intracavity photons$-$ through photon statistics measurements. We first show that the order parameter quantifying the limit cycle amplitude can be reconstructed from the mode intensity statistics. As a main result we observe a maximum of the averaged amplitude at the mode switching, accounting for limit cycle oscillations. We finally relate this maximum to a dip of mode cross-correlations, reaching a minimum of $g_{ij}^{(2)}=2/3$, which we show to be a mesoscopic limit. Coupled nanolasers are thus an appealing testbed for the investigation of spontaneous breaking of time-translation symmetry in presence of strong quantum fluctuations.

Dates et versions

hal-02392846 , version 1 (04-12-2019)

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Mathias Marconi, Fabrice Raineri, Ariel Levenson, Alejandro M. Yacomotti, Julien Javaloyes, et al.. Mesoscopic limit cycles in coupled nanolasers. 2019. ⟨hal-02392846⟩
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