<p>➀ Fraunhofer IZM and Laser Electronics LE GmbH developed a modular laser system using Quantum Cascade Lasers (QCLs) to target the mid-infrared (MIR) spectrum for multispectral analysis, enabling precise detection of organic substances;</p><p>➁ The system integrates lasers, drivers, and optical components on a thin-glass substrate with temperature-stabilized cavities, allowing miniaturization, rugged encapsulation, and operation in harsh environments;</p><p>➂ Funded by the European Regional Development Fund (ERDF) and Berlin Investment Bank, the project aims to reduce development costs for SMEs and enable portable spectroscopic devices in fields like medicine and environmental monitoring.</p>