Analog coherent link with expanded link budget from integrated lasers and transmission through an O-band wavelength selective switch
We report what is believed to be the first unamplified analog coherent link using heterogeneously integrated lasers in both the TX and RX. The link achieves a 10 dB fiber-to-fiber link budget while operating with BER below the KP-4 FEC threshold, and a 7 dB fiber-to-fiber link budget with BER below the KR-4 FEC threshold, both while transporting 100 Gbps QPSK over a single polarization. The facet-to-facet link budgets are 23 dB and 20 dB respectively. QPSK transmission is measured through an O-band silicon photonics integrated wavelength-selective switch with a BER below the Staircase FEC threshold.
Authors
- James F. Buckwalter (ORCID: https://orcid.org/0000-0002-9390-0897)
- Hector Andrade (ORCID: https://orcid.org/0000-0002-1997-3983)
- Aaron Maharry (ORCID: https://orcid.org/0000-0002-7373-2697)
- Stephen Misak (ORCID: https://orcid.org/0000-0001-5497-3084)
- A.A.M. Saleh (ORCID: https://orcid.org/0000-0001-8245-1136)
- Evan Chansky (ORCID: https://orcid.org/0000-0002-5973-5867)
- Aaron Wissing
- Xinhong Du
- Junqian Liu (ORCID: https://orcid.org/0000-0001-6733-7650)
- Xiangwei Kong (ORCID: https://orcid.org/0009-0003-9156-3158)
- Clint L. Schow (ORCID: https://orcid.org/0000-0002-6754-2774)
- Larry A. Coldren
- Michael D. Thomas
Publication Details
- Journal
- Optics Express
- Published
- 2025-11-05
- DOI
- https://doi.org/10.1364/oe.575481
- Primary Topic
- Advanced Photonic Communication Systems
- Type
- article
- Field-Weighted Citation Impact
- 0.00