On October 1, 2025, the Electrical Engineering Department hosted a seminar titled “Chaotic-Cavity Lasers for Emerging Applications,” presented by Dr. Omer Alkhazragi.

The session highlighted how semiconductor lasers—vital from frontier science (e.g., LIGO) to everyday devices (e.g., smartphones)—can be limited by their very strength: high coherence. Dr. Alkhazragi explained how coherence leads to speckle, degrading imaging, lighting, and display quality, and how long coherence length constrains resolution in interference-based sensing.

He then introduced chaotic-cavity designs that deliberately tailor spatial and temporal coherence to suppress speckle, improve image and projection fidelity, and enable higher-resolution sensing. The talk also covered practical design considerations and additional advantages of chaotic cavities, pointing to promising pathways for next-generation imaging, lighting, display, and sensor applications.