High-gain optical parametric amplification with a continuous-wave pump using a domain-engineered thin-film lithium niobate waveguide
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 a process that is common for devices including modulators, this OPA device marks an important step in TFLN photonic integration.
Authors
- Kunpeng Jia (ORCID: https://orcid.org/0000-0003-0038-406X)
- Zhenda Xie (ORCID: https://orcid.org/0000-0003-2060-3063)
- Mengwen Chen (ORCID: https://orcid.org/0009-0004-4130-2141)
- Zhong Yan (ORCID: https://orcid.org/0000-0003-2586-9426)
- Yong Zhang (ORCID: https://orcid.org/0000-0003-1158-2248)
- Chang Jun Zhu (ORCID: https://orcid.org/0009-0007-2771-5507)
- Zexing Zhao
- Zikang Wang (ORCID: https://orcid.org/0000-0002-9214-6896)
- Xiaowen Gu (ORCID: https://orcid.org/0000-0002-2237-6231)
- Biaobing Jin (ORCID: https://orcid.org/0000-0001-9506-8355)
- Zhilin Ye (ORCID: https://orcid.org/0000-0002-2181-5001)
- Xiaohui Tian
- Xuewen Wang (ORCID: https://orcid.org/0000-0003-3751-0306)
- Jie Tang (ORCID: https://orcid.org/0000-0002-9745-4871)
- Zhenlin Wang (ORCID: https://orcid.org/0000-0003-3828-9260)
- Guang Qian (ORCID: https://orcid.org/0000-0001-7052-4262)
- Ji Tang (ORCID: https://orcid.org/0009-0003-5613-8383)
- Shi-Ning Zhu
- Chenyu Wang (ORCID: https://orcid.org/0000-0002-3675-3616)
Institutions
- Wuhan University of Technology (CN)
- Nanjing University of Information Science and Technology (CN)
- Purple Mountain Laboratories (CN)
Publication Details
- Journal
- Optica
- Published
- 2025-07-18
- DOI
- https://doi.org/10.1364/optica.565112
- Citations
- 7
- Primary Topic
- Photonic and Optical Devices
- Type
- article
- Field-Weighted Citation Impact
- 5.11
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Jiangsu Province
- National Key Research and Development Program of China