Towards Scalable GHz Spot Arrays for Atom Control

The packaging complexity of connecting modulators with external electronic control limits the scale of arrays of optical modulators. We propose a co-integrated electronic-photonic platform that may be tiled to produce an arbitrarily large GHz-speed visible light modulator array for individually controlling large-scale atomic systems. The platform comprises a set of complementary metal oxide semiconductor (CMOS) electronic chiplets bonded to an array of high-speed lithium niobate visible light modulators. Each electronic chiplet enables high precision voltage control of 30 electrical drivers with switching speeds exceeding 1 GHz, four of which can control a 120 optical channel device. We discuss the electrical innovations required to enable this platform and the prospects for scaling to thousands of optical channels.