India, Jan. 23 -- CEA-Leti presented new research at SPIE Photonics West highlighting major progress in the integration of quantum cascade lasers (QCLs) with silicon photonic platforms for mid-infrared (MIR) applications.

The paper, "Advanced Architectures for Hybrid III-V/Silicon Quantum Cascade Lasers: Toward Integrated Mid-Infrared Photonic Platforms," compares three complementary hybrid laser architectures that collectively advance the practicality, flexibility, and scalability of MIR photonics.

Toward smaller, more robust, and more manufacturable MIR systems

Mid-infrared light plays a critical role in technologies such as gas sensing, chemical spectroscopy, biomedical diagnostics, and security, because many molecules exhibit stron...