Mode-locked waveguide polariton laser

Souissi, H and Gromovyi, M and Septembre, I and Develay, V and Brimont, C and Doyennette, L and Cambril, E and Bouchoule, S and Alloing, B and Frayssinet, E and Zúñiga-Pérez, J and Ackemann, T and Malpuech, G and Solnyshkov, D D and Guillet, T (2024) Mode-locked waveguide polariton laser. Optica, 11 (7). pp. 962-970. ISSN 1899-7015 (https://doi.org/10.1364/OPTICA.524753)

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Abstract

So far, exciton-polariton (polariton) lasers were mostly single-mode lasers based on microcavities. Despite the large repulsive polariton-polariton interaction, a pulsed mode-locked polariton laser was never, to our knowledge, reported. Here, we use a 60-µm-long GaN-based waveguide surrounded by distributed Bragg reflectors forming a multi-mode horizontal cavity. We demonstrate experimentally and theoretically a polariton mode-locked micro-laser operating in the blue-UV, at room temperature, with a 300 GHz repetition rate and 100-fs-long pulses. The mode-locking is demonstrated by the compensation (linearization) of the mode dispersion by the self-phase modulation induced by the polariton-polariton interaction. It is also supported by the observation in experiment and theory of the typical envelope frequency profile of a bright soliton.

ORCID iDs

Souissi, H, Gromovyi, M, Septembre, I, Develay, V, Brimont, C, Doyennette, L, Cambril, E, Bouchoule, S, Alloing, B, Frayssinet, E, Zúñiga-Pérez, J, Ackemann, T ORCID logoORCID: https://orcid.org/0000-0003-2727-7395, Malpuech, G, Solnyshkov, D D and Guillet, T;
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