CN

News Release

ECOC 2025 Presentations
European Conference on Optical Communications — Wednesday, Oct 1, 2025 · 11:00–12:30
VCSEL HCG Meta Lens Short-Reach Interconnects

High-Speed Back-Emitting VCSEL with HCG Meta Lens

Abstract: We report a 940‑nm, 106‑Gb/s PAM4 back‑emitting VCSEL integrating a high‑contrast‑grating (HCG) flat lens that narrows beam divergence to <6° and provides built‑in anti‑reflection. The device achieves transmission over 30‑m OM2 multimode fiber with a BER < 2.4 × 10‑4, meeting the KP4‑FEC threshold.

Session: ECOC 2025 — Wednesday, Oct 1, 2025 · 11:00–12:30

Download PDF
850 nm >40 GHz Bandwidth 200–240 Gbps

850 nm VCSELs Exceeding 40 GHz Bandwidth Enable 200 Gbps Transmission over 100 m Multimode Fiber Link

Abstract: We report integrated 850‑nm VCSEL‑based transceivers delivering 200‑Gbps PAM4 and 240‑Gbps PAM8 over multimode‑fiber links. Leveraging high‑performance VCSELs and a low‑complexity architecture with integrated VCSEL drivers, the design highlights low‑power potential toward 200‑Gbps/lane short‑reach optical interconnects.

Session: ECOC 2025 — Wednesday, Oct 1, 2025 · 11:00–12:30

Download PDF