Published July 10, 2024 | Version v1
Journal article Metadata-only

Mode-locked waveguide polariton laser

Creators

Contributors

Others:

Description

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.

Abstract

International audience

Additional details

Identifiers

URL
https://hal.science/hal-04776451
URN
urn:oai:HAL:hal-04776451v1

Origin repository

Origin repository
UNICA