Bisang Dominik, Horst Yannik, Thürig Maurus, Menachery Kiran, Koepfli Stefan M, Kohli Manuel, De Leo Eva, Destraz Marcel, Tedaldi Valentino, Del Medico Nino, Hoessbacher Claudia, Baeuerle Benedikt, Heni Wolfgang, Leuthold Juerg
Institute of Electromagnetic Fields, ETH Zurich, 8092 Zurich, Switzerland.
Polariton Technologies AG, 8134 Adliswil, Switzerland.
ACS Photonics. 2024 Jun 28;11(7):2691-2699. doi: 10.1021/acsphotonics.4c00507. eCollection 2024 Jul 17.
Cryogenic quantum applications have a demand for an ever-higher number of interconnects and bandwidth. Photonic links are foreseen to offer data transfer with high bandwidth, low heat load, and low noise to enable the next-generation scalable quantum computing systems. However, they require high-speed and energy-efficient modulators operating at cryogenic temperatures for electro-optic signal conversion. Here, plasmonic organic electro-optic modulators operating at 4 K are demonstrated with a >100 GHz bandwidth, drive voltages as low as 96 mV, and a significant reduction in plasmonic propagation losses by over 40% compared to room temperature. Up to 160 Gbit/s and 256 Gbit/s cryogenic electro-optic signal conversion are demonstrated by performing data experiments using a plasmonic Mach-Zehnder modulator at around 1528 nm and a plasmonic ring-resonator modulator at around 1285 nm, respectively. This work shows that plasmonic modulators are ideally suited for future high-speed, scalable, and energy-efficient photonic interconnects in cryogenic environments.
低温量子应用对互连数量和带宽的要求越来越高。预计光子链路将提供高带宽、低热负载和低噪声的数据传输，以实现下一代可扩展量子计算系统。然而，它们需要在低温下运行的高速、节能调制器来进行电光信号转换。在此，展示了在4K温度下工作的等离子体有机电光调制器，其带宽大于100GHz，驱动电压低至96mV，与室温相比，等离子体传播损耗显著降低了40%以上。分别使用波长约为1528nm的等离子体马赫-曾德尔调制器和波长约为1285nm的等离子体环形谐振器调制器进行数据实验，展示了高达160Gbit/s和256Gbit/s的低温电光信号转换。这项工作表明，等离子体调制器非常适合未来低温环境下的高速、可扩展和节能光子互连。
