Mode synchronization in GaN ridge polariton lasers

H. Souissi (1) , M. Gromovyi (2) , T. Gueye , C. Brimont , L. Doyennette , D. Solnyshkov (3) , G. Malpuech , E. Cambril , S. Bouchoule , B. Alloing (4) , J. Zuniga-Perez

1 L2C - Laboratoire Charles Coulomb
2 C2N - Centre de Nanosciences et de Nanotechnologies
3 IP - Institut Pascal
4 CRHEA - Centre de recherche sur l'hétéroepitaxie et ses applications

We experimentally demonstrate polariton laser in a GaN ridge waveguide. The strong-coupling regime is assessed through a comparison of the measured and modeled cavity free spectral range (FSR). The findings reveal that the laser exhibits a transition from monomode to multimode operation as the temperature is increased from 70K to 150K. The transition to multimode lasing is characterized by a flattening of the FSR just above the threshold, which constitutes the signature of mode synchronization induced by polaritonic nonlinearities.

Domaines: Physique [physics]

H. Souissi, M. Gromovyi, T. Gueye, C. Brimont, L. Doyennette, et al.. Mode synchronization in GaN ridge polariton lasers. e 9th International Conference on Antennas and Electromagnetic Systems (AES 2023), Jun 2023, Torremolinos, Spain. ⟨hal-04329992⟩