PPQSENSE SRL

Their core work

PPQSENSE SRL is an Italian deep-tech SME specializing in quantum cascade laser (QCL) devices and mid-infrared photonic systems. Based in Sesto Fiorentino near Florence — a hub for Italian quantum optics research — they develop QCL-based instruments and contribute device-level expertise to research consortia working on quantum photonics, frequency combs, and optical sensing. Their commercial foundation in QCL technology bridges fundamental quantum physics and real-world applications such as mid-infrared LIDAR for atmospheric and environmental monitoring. As a small company participating in FET frontier research projects, they bring the manufacturing and device physics capability that academic partners typically lack.

What they specialise in

How they've shifted over time

In their first H2020 project (Qombs, 2018–2022), PPQSENSE was firmly in fundamental quantum physics territory — quantum simulators, Bose-Einstein condensates, ultracold Fermi gases, entanglement, and squeezing — using QCL frequency combs as a platform for quantum science. By their second project (QuaLIDAD, 2021–2023), the quantum fundamentals dropped away and the keywords shifted to mid-infrared LIDAR and environmental monitoring — clearly applied, product-oriented work. The pivot is sharp: from "what can QCLs teach us about quantum mechanics" to "what can QCLs do in the field."

PPQSENSE is moving from frontier quantum physics toward commercially deployable QCL-based sensing instruments, making them an increasingly relevant partner for environmental monitoring, gas detection, and industrial sensing projects.

How they like to work

PPQSENSE has participated exclusively as a non-coordinating partner in both projects, suggesting they join consortia as a device or technology contributor rather than as a project driver. With 11 partners across 4 countries in just 2 projects, they work in mid-sized international consortia typical of FET research. There is no evidence of repeated partnerships, indicating they are comfortable connecting with new academic and industrial partners on a project-by-project basis.

PPQSENSE has built connections with 11 consortium partners across 4 countries through two FET-pillar projects. Their network is European in scope and leans toward academic and research institutions given the fundamental nature of Qombs, though QuaLIDAD suggests growing links to applied and industrial partners.

What sets them apart

PPQSENSE occupies a rare position as a private SME with genuine QCL device expertise embedded in frontier quantum research — a combination that most pure academic groups cannot offer and most industrial photonics companies lack the scientific depth to match. Their participation in a FET Flagship-adjacent project (Qombs) alongside a practical LIDAR project demonstrates credibility at both ends of the technology readiness spectrum. For consortium builders, they are the kind of SME that adds industrial realism to academic proposals without sacrificing scientific rigor.

Highlights from their portfolio

• Qombs
  The largest of their two projects at EUR 350,000, Qombs placed PPQSENSE inside a cutting-edge FET consortium on quantum simulation and entanglement engineering — rare territory for a private SME — demonstrating scientific credibility well beyond typical industry roles.
• QuaLIDAD
  QuaLIDAD marks a strategic turn toward applied sensing: using QCL technology for LIDAR-based environmental monitoring, showing PPQSENSE can translate quantum photonics expertise into real-world instruments.