Dual-stage modulation correlation OTDR for high-resolution monitoring in passive optical networks
Utilizing correlation detection and dual-stage modulation, we detected reflected signals at -56.3 dBm with less than 10 cm spatial resolution in typical PON scenarios. The correlation OTDR achieves higher SNR with less computational cost, enabling optical power monitoring and fault diagnosis for each branch.
Authors
- Tianqian Zhang (ORCID: https://orcid.org/0009-0000-0771-1401)
- Li Han (ORCID: https://orcid.org/0000-0002-4486-0534)
- Wu Liu (ORCID: https://orcid.org/0000-0002-5561-8903)
- Min Luo (ORCID: https://orcid.org/0000-0001-5221-5263)
- Zhiyi Zhong
Institutions
- Institute of Information Technologies (BG)
Publication Details
- Published
- 2025-05-22
- DOI
- https://doi.org/10.1117/12.3061509
- Citations
- 1
- Primary Topic
- Optical Network Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.73