Glass-based integrated photonic circuits (PICs) have recently emerged as powerful and versatile platforms for light manipulation, offering distinct advantages such as long-term stability, high optical throughput, and the design flexibility enabled by true three-dimensional integration. These features make glass PICs particularly well-suited for advancing quantum technologies, ranging from quantum computation to secure communication and space-based cryptography where precise, reconfigurable control of photonic states is critical.

In this talk, we will present recent advances in programmable glass PICs, highlighting both experimental achievements and design innovations. We will also discuss future perspectives for scalable architectures and the commercialization of this technology, including insights from our efforts at Ephos, where we are bridging the gap between cutting-edge photonics research and real-world applications.