High-coherence hybrid-integrated 780 nm source by self-injection-locked second-harmonic generation in a high-Q silicon-nitride resonator
Optics
2023-06-21 v1
Abstract
By self-injection-locking a 1560 nm distributed feedback semiconductor laser to a high- silicon nitride resonator, a high-coherence 780 nm second harmonic signal is generated via the photogalvanic-induced second-order nonlinearity. A record-low frequency noise floor of 4 Hz/Hz is achieved for the 780 nm emission. The approach can be generalized for signal generation over a wide range of visible and near-visible bands.
Keywords
Cite
@article{arxiv.2306.10660,
title = {High-coherence hybrid-integrated 780 nm source by self-injection-locked second-harmonic generation in a high-Q silicon-nitride resonator},
author = {Bohan Li and Zhiquan Yuan and Warren Jin and Lue Wu and Joel Guo and Qing-Xin Ji and Avi Feshali and Mario Paniccia and John E. Bowers and Kerry J. Vahala},
journal= {arXiv preprint arXiv:2306.10660},
year = {2023}
}