The Need

In the rapidly advancing realm of quantum information science, there's an escalating demand for reliable sources of entangled photon pairs, the fundamental building blocks for various quantum communication technologies. However, generating these entangled pairs for quantum devices is complex and costly, in part due to the precise temperature control required at well below 1 degree Celsius. As the pursuit of long-distance quantum technologies intensifies globally, these precise and difficult temperature constrains will become increasingly burdensome.

The Technology

Our technology provides a solution to expanding the acceptable temperature range for effective and efficient spontaneous parametric down conversion (SPDC). Through dispersion engineering of the crystals, we can increase the temperature bandwidth from ~5°C to ~17°C while only reducing the overall efficiency of the process by a factor of 4.

Commercial Applications

• Quantum Communication
• Quantum Computing
• Quantum Sensing

Benefits/Advantages

• Enhanced operational flexibility with a wider temperature range, reducing dependency on complex temperature control mechanisms.

• Simplified device designs due to reduced need for large size, weight, and power-consuming temperature controllers.
• Improved cost-effectiveness through the use of compact and lightweight heating methods that do not have to control the absolute temperature.
• Facilitation of laboratory experiments and field deployments with increased temperature bandwidth, ensuring greater adaptability in various operational environments.
• Potential for accelerated innovation and development in quantum information science through accessible and efficient entangled photon pair sources.