High-gain optical parametric amplification with a continuous-wave pump using a domain-engineered thin-film lithium niobate waveguide
Optics
2025-08-01 v2
Abstract
While thin film lithium niobate (TFLN) is known for efficient signal generation, on-chip signal amplification remains challenging from fully integrated optical communication circuits. Here we demonstrate the continuous-wave-pump optical parametric amplification (OPA) using an x-cut domain-engineered TFLN waveguide, with high gain over the telecom band up to 13.9 dB, and test it for high signal-to-noise ratio signal amplification using a commercial optical communication module pair. Fabricated in wafer scale using common process as devices including modulators, this OPA device marks an important step in TFLN photonic integration.
Cite
@article{arxiv.2411.10721,
title = {High-gain optical parametric amplification with a continuous-wave pump using a domain-engineered thin-film lithium niobate waveguide},
author = {Mengwen Chen and Chenyu Wang and Kunpeng Jia and Xiao-Hui Tian and Jie Tang and Chunxi Zhu and Xiaowen Gu and Zexing Zhao and Zikang Wang and Zhilin Ye and Ji Tang and Yong Zhang and Zhong Yan and Xuewen Wang and Guang Qian and Biaobing Jin and Zhenlin Wang and Shi-Ning Zhu and Zhenda Xie},
journal= {arXiv preprint arXiv:2411.10721},
year = {2025}
}