Non-Hermitian Skin Effect in Laser Arrays

Authors :: Yuzhou G. N. Liu
Omid Hemmatyar
Demetrios N. Christodoulides
Mercedeh Khajavikhan
Source :: Conference on Lasers and Electro-Optics.
Publication Year :: 2022
Publisher :: Optica Publishing Group, 2022.
Abstract: We report on the first realization of the Hatano-Nelson model in photonics by using an array of active unidirectional resonators that exhibit asymmetric nearest neighbor couplings. Non-Hermitian skin effect and laser phase locking is observed.