Safran Corporate Ventures joined the fibre optic technology developer's existing investors for a $5.7m round that will support international sales.

CaiLabs, a France-based optical fibre component spinout of research facility Kastler-Brossel, has raised €5m ($5.7m) from investors including Safran Corporate Ventures, the strategic investment vehicle for aerospace and defence company Safran.

Safran was joined by CaiLabs’ current shareholders, the company said. It had previously raised €3.5m from investors including venture capital firms Innovacom and Starquest Capital, seed-stage VC fund Kima Ventures and undisclosed angel investors.

Founded in 2013, CaiLabs is developing light-shaping components used to maximise the efficiency of fibre…

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