On-board optics discussion: grating couplers tolerance and bandwidth
jwt0625 · x · 2026-08-22
Discussion on On-Board Optics (OBO), suggesting alignment tolerances might be misplaced and favoring grating couplers. It notes good edge couplers should have 0.4-0.6 dB loss and criticizes the lack of bandwidth discussion.
Related event: Engineers Push Back on Silicon Photonics Interconnect Claims(4 posts)→
More from Infra
- ASM's pizza-themed ALD explainer at SEMICON West is the best yet — BenBajarin · 2026-10-16
- Google's Willow chip cuts quantum errors 40x, raising Q-Day concerns for Bitcoin — jamestagg · 2026-10-16
- Vibe Coding a Data Pipeline Is Easy; Running It at Billions of Rows Is Not — Zachly · 2026-10-16
- Large data centers employ only ~50-150 permanent on-site staff, Microsoft says — brezina · 2026-10-16
- Prediction: Opus 5.5-level models on laptops by 2027, backed by Qwen 27B data — cephaloform · 2026-10-16
- Oracle down 12% in a week, nearly 50% off June high as OpenAI exposure spooks market — alvelda · 2026-10-16