[AI Optical Networking Company Lumilens Completes Over $700 Million Series C Financing, Valuation Rises to $5.51 Billion] According to Reuters, AI optical networking startup Lumilens announced the completion of over $700 million in Series C financing, bringing its post-money valuation to $5.51 billion. This round of financing was jointly led by Atreides Management, Bain Capital Ventures, Meritech, Seligman Ventures, and Spark Capital. To date, its total cumulative funding has exceeded $900 million. Lumilens focuses on providing high-speed, low-power optical networking products for AI data centers and has supplied products to a hyperscale cloud service provider under a multi-billion-dollar agreement, though the specific customer name was not disclosed.