Real-Time Single-Carrier 800 Gbit/s S+C+L Band Optical Transmission Over 300 km Single-Mode Fiber
In this letter, we demonstrate a real-time S+C+L band optical transmission system with a total transmission capacity of 84 Tbit/s. 105 wavelength division multiplexing (WDM) channels with 150 GHz grid are used to transmit 135 GBaud probabilistic constellation shaping 16 quadrature amplitude modulation (PCS-16QAM) signals. The system only uses doped fiber amplifiers for signal amplification. We adopt self-developed S-band integrated tunable laser assembly (ITLA) with high output power to generate S-band signal. The real-time net data rate of S+C+L band is 800 Gbit/s and the total transmission distance is 300 km. To the best of our knowledge, it is currently the highest real-time net data rate reported in the S band and the farthest transmission distance of real-time S+C+L band transmission systems.
Authors
- Xiongyan Tang (ORCID: https://orcid.org/0009-0000-2151-2679)
- Guangquan Wang (ORCID: https://orcid.org/0000-0003-2508-9788)
- Zelin Wang
- Hu Shi (ORCID: https://orcid.org/0000-0002-5466-5783)
- Dongchen Zhang (ORCID: https://orcid.org/0000-0001-9361-6936)
- Baoluo Yan (ORCID: https://orcid.org/0000-0001-7507-7465)
- Dong Chen (ORCID: https://orcid.org/0000-0002-2133-4697)
- Min Zhang (ORCID: https://orcid.org/0000-0002-6703-1317)
- He Zhang (ORCID: https://orcid.org/0000-0002-1184-014X)
- Jun Zhang (ORCID: https://orcid.org/0000-0002-0644-9154)
- Jun Wu (ORCID: https://orcid.org/0000-0003-4817-6454)
- Liu Hong (ORCID: https://orcid.org/0000-0003-3760-1259)
- Chuangye Wang (ORCID: https://orcid.org/0000-0002-3397-6128)
- Zhiyao Duan (ORCID: https://orcid.org/0000-0002-8334-9974)
- Yakun Hu
- Shikui Shen
- Zhaolong Liao
- Hongyan Zhou (ORCID: https://orcid.org/0009-0002-8128-7244)
Institutions
- Beijing University of Posts and Telecommunications (CN)
- Yangtze Optical Electronic (China) (CN)
- ZTE (China) (CN)
- China United Network Communications Group (China) (CN)
Publication Details
- Journal
- IEEE Photonics Technology Letters
- Published
- 2025-09-02
- DOI
- https://doi.org/10.1109/lpt.2025.3604825
- Citations
- 1
- Primary Topic
- Advanced Photonic Communication Systems
- Type
- article
- Field-Weighted Citation Impact
- 0.73
Funders
- National Key Research and Development Program of China