High-speed silicon photonics ring-resonator modulators for optical-amplification-free links
Unprecedented demand for energy-efficient optical interconnects in AI clusters requires scalable and small footprint solutions. Silicon photonics platform has emerged as scalable cost-effective solution for short-reach optical interconnects. In this paper, we report record optical-amplification free performance using our designed silicon photonics C + L band and O band ring-resonator modulators suitable for high energy-efficiency optical interconnects. We demonstrate optical-amplification-free transmission of up to 245 Gbps OOK, 280 Gbps PAM4 and 265 Gbps PAM6 using C + L band RRM and up to 206 Gbps OOK and 224 Gbps PAM4 using O band RRM. The achieved speeds are shown as gross bitrate. This paves way for energy-efficient dense optical interconnects with great manufacturing scalability.
Authors
- Toms Salgals (ORCID: https://orcid.org/0000-0002-9465-0164)
- Armands Ostrovskis (ORCID: https://orcid.org/0000-0001-7538-4924)
- Arvids Sedulis
- Xianbin Yu (ORCID: https://orcid.org/0000-0003-0063-4460)
- Richard Schatz (ORCID: https://orcid.org/0000-0003-3056-4678)
- Kazuo Yamaguchi (ORCID: https://orcid.org/0000-0002-5439-7432)
- R. G. Jahn (ORCID: https://orcid.org/0000-0003-4593-1653)
- Oskars Ozoliņš (ORCID: https://orcid.org/0000-0001-9839-7488)
- Hadrien Louchet
- Benjamin Krüger
- Fabio Pittalà (ORCID: https://orcid.org/0000-0001-5725-6929)
- Vjačeslavs Bobrovs (ORCID: https://orcid.org/0000-0002-5156-5162)
- Markus Gruen
- Aleksandrs Marinins (ORCID: https://orcid.org/0000-0002-0728-6684)
- Sandis Spolītis (ORCID: https://orcid.org/0000-0002-0571-6409)
- Xiaodan Pang (ORCID: https://orcid.org/0000-0003-4906-1704)
- Michael Koenigsmann
- Kristaps Rubuls (ORCID: https://orcid.org/0000-0002-9812-4057)
- Lu Zhang (ORCID: https://orcid.org/0000-0001-9567-155X)
Institutions
- RISE Research Institutes of Sweden (SE)
- Zhejiang University (CN)
Publication Details
- Journal
- Optics Express
- Published
- 2025-07-14
- DOI
- https://doi.org/10.1364/oe.570067
- Citations
- 2
- Primary Topic
- Photonic and Optical Devices
- Type
- article
- Field-Weighted Citation Impact
- 1.46