‘We Built a Technology Which Uses Light to Control Light’: Finchetto CEO on Ditching Electronics to Make Networks Faster

Why It Matters

By cutting network power and latency, Finchetto boosts AI training efficiency and data‑center cost structures while providing a scalable, future‑proof path for photonic networking.

Key Takeaways

• All‑optical switching removes costly light‑to‑electron conversions
• Supports 1.6–3.2 Tbps line‑rate packet switching
• Cuts network power consumption and latency
• Plug‑and‑play with existing transceivers and cabling
• Enables exotic topologies and future photonic applications

Pulse Analysis

The rise of AI and ever‑growing data‑center traffic has exposed the limits of electronic packet switching, where each photon must be converted to an electron for routing decisions. Finchetto’s breakthrough leverages nonlinear optics to let light control light, delivering true packet‑by‑packet switching without the electro‑optical bottleneck. This approach not only sustains terabit‑per‑second line rates but also sidesteps the thermal and power penalties that have plagued traditional silicon‑based fabrics, making it a compelling alternative for hyperscale operators seeking to push performance ceilings.

From a business perspective, the technology translates into tangible cost savings and performance gains. Lower power draw directly improves the bottom line for hyperscalers, whose energy bills now rival capital expenditures. Moreover, the ultra‑low latency of an all‑optical path eliminates the idle‑GPU syndrome that occurs when network fabric cannot keep up with massive GPU clusters during AI model training. Because Finchetto’s switches are designed to interoperate with standard transceivers, NICs, and cabling, data centers can adopt the solution in phases—starting with high‑priority AI pods—without a disruptive overhaul of existing infrastructure.

Beyond immediate data‑center benefits, the all‑optical packet switch opens doors for next‑generation networking scenarios. Its passive, speed‑agnostic core can support emerging topologies such as torus or dragonfly, and the same switching principle can be extended to quantum‑adjacent networks, optical compute, or even space‑based free‑space links. For the UK, nurturing startups like Finchetto through testbeds and procurement incentives could cement a sovereign photonics supply chain, ensuring domestic innovation fuels global data‑center evolution.