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# Optical Interconnect Lab 001｜光接続はどこまで進んだか——送信・受信・材料の3つの実証
- URL: https://tokyobrainie.ghost.io/optical-interconnect-40cbc361-25612c5c-en/
- Published: 2026-11-02T03:00:00.000Z
- Updated: 2026-11-02T03:00:00.000Z
- Description: This note separates recent device demonstrations from production readiness. A Japanese silicon modulator study, published in Nature Communications on 22 October and
- Author: TokyoBrainie
- Tags: Optical Interconnect Lab, Semiconductor Research, English, #Import 2026-11-11 08:54

[English](https://tokyobrainie.ghost.io/optical-interconnect-40cbc361-25612c5c-en/) · [日本語](https://tokyobrainie.ghost.io/optical-interconnect-40cbc361-25612c5c-ja/)

This note separates recent device demonstrations from production readiness. A Japanese silicon modulator study, published in Nature Communications on 22 October and announced by the institutions on 26 October 2026, is the recent lead. Two September institutional announcements provide receiver and material context. The 26 fJ/bit figure belongs to a 140 Gb/s OOK operating condition, not the 200 Gb/s PAM4 condition. Neither component energy nor receiver sensitivity establishes whole-link efficiency. The original journal article and the two conference papers were not read in full; the institutional announcements were checked directly. Manufacturing questions below are my research agenda, not reported failures or evidence of supplier contracts.

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[Original Notion archive](https://app.notion.com/p/40cbc361ccd281ad8896e65b25612c5c?pvs=204&ref=tokyobrainie.ghost.io)