<p>The Fraunhofer IZM researchers have developed a laser welding process for connecting PICs with optical fibers without adhesives, which can operate at cryogenic temperatures. This technology promises more reliable, faster, and cheaper fiber-PIC connections, revolutionizing quantum technology applications.</p><p>Low temperatures are essential for observing quantum effects, which can significantly impact quality of life. The QWeld project focuses on cryogenic quantum computing systems and the integration of PIC-based modules for secure communication and connections in quantum computing.</p><p>The technology is durable, reproducible, and can be automated, making it suitable for large-scale production of PICs for quantum systems.</p>