This technology is a cryogenic optoelectronic data link that uses graphene modulators to transmit low-voltage signals with high sensitivity, enabling efficient data transmission between cryogenic systems and room-temperature devices.
Recent cryogenic electronic technologies, such as quantum computing and superconducting circuits, require high-sensitivity solutions for low-power data communication with conventional room-temperature electronics. Current electrical transmission lines and amplifiers generate excessive heat and power, disrupting cryogenic conditions. Optical fibers offer a potential solution but need modulators that function efficiently at low temperatures without high input voltages. Existing semiconductor-based modulators underperform in these environments, highlighting the need for more efficient data link systems.
This technology is a graphene-based optical modulator that converts low-voltage electrical signals (<1 mV) from cryogenic systems into optical signals (100 μm to 32 nm) for transmission to room-temperature electronics. The modulator uses a single graphene sheet whose optical properties are tuned by low-voltage input. With its zero-gap structure, high electron mobility, and strong broadband optical absorption, graphene enables highly sensitive, low-power optoelectronic devices for data transmission between cryogenic and room-temperature systems.
Patent Issued (US 12,009,869)
IR CU16109
Licensing Contact: Greg Maskel