Celestial AI, creator of the Photonic Fabric optical interconnect technology platform, announced today that it has raised $250 million in its Series C1 funding round led by Fidelity Management & Research Company, bringing the total capital raised to date to more than $515 million. Along with Fidelity Management & Research Company, new investors include funds and accounts managed by BlackRock, Maverick Silicon, Tiger Global Management and Lip-Bu Tan, and participation from existing investors including AMD Ventures, Koch Disruptive Technologies (KDT), Temasek, Temasek’s wholly-owned subsidiary Xora Innovation, Porsche Automobil Holding SE and The Engine Ventures.