The Defense Advanced Research Projects Agency (DARPA) is hosting a Proposers Day for the Photonic Integrated Circuit Architectures for Scalable System Objectives (PICASSO) program on January 16, 2026, at the DARPA Conference Center in Arlington, VA. This event aims to introduce the program's vision for achieving U.S. leadership in photonics through very large-scale photonics integration (VLPI) and seeks innovative circuit strategies to address challenges related to optical signal degradation and mode control. The Proposers Day will feature presentations, Q&A sessions, and opportunities for collaboration among industry, academia, and government researchers, with attendance limited to U.S. Persons and requiring prior registration by January 9, 2026. For more information, interested parties can contact the PICASSO PS Coordinator at PICASSO@darpa.mil.