On-chip ultra-narrow-linewidth single-mode microlaser on lithium niobate on insulator
Optics
2021-07-07 v2
Abstract
We report an on-chip single mode microlaser with low-threshold fabricated on Erbium doped lithium niobate on insulator (LNOI). The single mode laser emission at 1550.5 nm wavelength is generated in a coupled photonic molecule, which is facilitated by Vernier effect when pumping the photonic molecule at 970 nm. A threshold pump power as low as 200 uW is demonstrated thanks to the high quality factor above 10^6. Moreover, the linewidth of the microlaser reaches 4 kHz, which is the best result in LNOI microlasers. Such single mode micro-laser lithographically fabricated on chip is highly in demand by photonic community.
Keywords
Cite
@article{arxiv.2104.13501,
title = {On-chip ultra-narrow-linewidth single-mode microlaser on lithium niobate on insulator},
author = {Renhong Gao and Jianglin Guan and Ni Yao and Li Deng and Jintian Lin and Min Wang and Lingling Qiao and Zhenhua Wang and Youting Liang and Yuan Zhou and Ya Cheng},
journal= {arXiv preprint arXiv:2104.13501},
year = {2021}
}