An electro-optically tunable microring laser monolithically integrated on lithium niobate on insulator
Abstract
We demonstrate monolithic integration of an electro-optically (EO) tunable microring laser on lithium niobate on insulator (LNOI) platform. The device is fabricated by photolithography assisted chemo-mechanical etching (PLACE), and the pump laser is evanescently coupled into the erbium (Er3+) doped LN microring laser using an undoped LN waveguide mounted above the microring. The quality factor of the LN microring resonator is measured as high as 1.54x10^5 at the wavelength of 1542 nm. Lasing action can be observed at a pump power threshold below 3.5 mW using a 980 nm continuous-wave pump laser. Finally, tuning of the laser wavelength is achieved by varying the electric voltage on the microelectrodes fabricated in the vicinity of microring waveguide, showing an EO coefficient of 0.33 pm/V.
Cite
@article{arxiv.2103.08197,
title = {An electro-optically tunable microring laser monolithically integrated on lithium niobate on insulator},
author = {Difeng Yin and Yuan Zhou and Zhaoxiang Liu and Zhe Wang and Haisu Zhang and Zhiwei Fang and Wei Chu and Rongbo Wu and Jianhao Zhang and Wei Chen and Min Wang and Ya Cheng},
journal= {arXiv preprint arXiv:2103.08197},
year = {2021}
}
Comments
4 pages, 4 figures