An integrated electro-optically tunable multi-channel interference cavity laser
Optics
2024-06-19 v1 Applied Physics
Abstract
We demonstrated a continuously tunable laser system by butt coupling a reflective semiconductor optical amplifier (RSOA) chip with a thin-film lithium niobate (TFLN) based multi-channel interference (MCI) cavity chip. This hybrid integrated lasers allows for fine-tuning of the laser wavelength from 1538 nm to 1560 nm with a resolution of 0.014 nm and a side-mode suppression ratio (SMSR) exceeding 30 dB. The MCI cavity chip is fabricated using the photolithography assisted chemo-mechanical etching (PLACE) technique. The developed laser has an output power of approximately 10 {\mu}W, which can be further amplified to 70 mW using a commercial erbium-doped fiber amplifier (EDFA) without significant broadening of the laser linewidth.
Cite
@article{arxiv.2406.12217,
title = {An integrated electro-optically tunable multi-channel interference cavity laser},
author = {Junxia Zhou and Yiran Zhu and Botao Fu and Jinming Chen and Huiting Song and Zhihao Zhang and Jianping Yu and Jian Liu and Min Wang and Jia Qi and Ya Cheng},
journal= {arXiv preprint arXiv:2406.12217},
year = {2024}
}