Request for Information: Quantum-Interface-Compatible Photonic Integrated Circuits (QuIC PICs)

The Defense Advanced Research Projects Agency (DARPA) is soliciting information through a Request for Information (RFI) regarding Quantum-Interface-Compatible Photonic Integrated Circuits (QuIC PICs) to aid quantum technology companies. This RFI aims to gather insights on the needs of these companies, focusing on the integration of PICs with quantum emitters like neutral atoms and quantum dots, which are crucial for supporting advanced quantum technologies. The document outlines challenges such as the predominance of telecom wavelengths in existing photonics offerings and the diverse requirements of quantum emitters that hinder PIC adoption. DARPA is interested in identifying potential foundry platforms for the development of PICs tailored to quantum technologies, which would serve as a domestic resource for manufacturers. Responses from various sectors, including academic and research institutions, are encouraged, with a structured request for descriptions of current or envisioned quantum systems and their integration with PIC technology. Submissions must include detailed technical requirements, system applications, and schematics. This initiative underscores DARPA's commitment to advancing quantum technology and its manufacturing ecosystem while addressing the specific needs of the industry for significant advancements in optical infrastructures. Responses are due by September 22, 2025.