Lytid

Lytid is a French photonics company specializing in the development and commercialization of terahertz laser sources based on quantum cascade laser (QCL) technology. Co-founded by Pierre Gellie and Jean-Charles Roche, the company builds on more than 20 years of applied research on QCL technology through Prof. Carlo Sirtori of the Matériaux et Phénomènes Quantiques laboratory at Paris Diderot University. Lytid's product portfolio includes deep-cooled SWIR cameras, ultra-fast Mid-IR QWIP detectors, terahertz sources based on quantum cascade lasers, and Sub-THz sources based on Schottky diode technology. The company serves quantum sensing, spectroscopy, and imaging applications across research and industrial markets. Based in Paris, Lytid represents France's commitment to advancing quantum photonics technologies for next-generation sensing and detection applications.