Parity-Time Symmetry breaking in First-order Distributed Feedback Lasers

Y Liang (1) , Q Gaimard (1) , J R Coudevylle (1) , A Garreau , H Benisty (2) , A Ramdane (1) , A Lupu (1)

1 C2N - Centre de Nanosciences et de Nanotechnologies
2 Laboratoire Charles Fabry / Nanophotonique

It is of fundamental significance to effectively manipulate the cavity resonant modes in laser physics. Recent explorations of parity-time symmetry provide an opportunity to realize stable single-mode lasing by strategically structuring gain and loss in the laser cavity. Here we experimentally report, for the first time, high-output single-mode lasing with relatively low threshold current in first-order distributed feedback cavities with broken parity-time symmetry structure.

Domaines: Optique / photonique

Y Liang, Q Gaimard, J R Coudevylle, A Garreau, H Benisty, et al.. Parity-Time Symmetry breaking in First-order Distributed Feedback Lasers. 12th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META 2022), 2022. ⟨hal-04481747⟩