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arXiv · 1911.10830

Mesoscopic limit cycles in coupled nanolasers

Mathias Marconi·Fabrice Raineri·Ariel Levenson·Alejandro M. Yacomotti·Julien Javaloyes·Si H. Pan·Abdelkrim El Amili·Yeshaiahu Fainman
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Abstract

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.

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Mathias Marconi, Fabrice Raineri, Ariel Levenson, Alejandro M. Yacomotti, Julien Javaloyes, Si H. Pan, Abdelkrim El Amili, Yeshaiahu Fainman. 2019-11-25. Mesoscopic limit cycles in coupled nanolasers. https://doi.org/10.1103/physrevlett.124.213602

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