Single mode lasing in transversely multi-moded PT-symmetric microring resonators
Optics
2016-04-22 v1
Abstract
Single mode lasing is experimentally demonstrated in a transversely multi-moded InP-based semiconductor microring arrangement. In this system, mode discrimination is attained by judiciously utilizing the exceptional points in a parity-time (PT) symmetric double microring configuration. The proposed scheme is versatile, robust to small fabrication errors, and enables the device to operate in a stable manner considerably above threshold while maintaining spatial and spectral purity. The results presented here pave the way towards a new class of chip-scale semiconductor lasers that utilize gain/loss contrast as a primary mechanism for mode selection.
Cite
@article{arxiv.1604.06424,
title = {Single mode lasing in transversely multi-moded PT-symmetric microring resonators},
author = {Hoseein Hodaei and Mohammad-Ali Miri and Absar U. Hassan and William E. Hayenga and Matthias Heinrich and Demetrios N. Christodoulides and Mercedeh Khajavikhan},
journal= {arXiv preprint arXiv:1604.06424},
year = {2016}
}
Comments
11 pages