Integrated optics for trapped-ion addressing: tailored beam emission

G. Beck¹, K. Mehta², C. Axline¹, C. Mordini¹, A. Vasquez¹, and J. Home¹
1) ETH Zurich, Switzerland
2) Cornell University, USA

Chip-integrated optical systems have demonstrated significant advantages in the context of trapped-ion quantum information processing. Alongside experimental convenience, integrated beam emission intrinsically provides exceptional phase-stability, coherence times, and operation fidelity. We present new developments in out-coupler design which enable near-arbitrary beam emission from waveguides into free space, including diffraction-limited focusing, higher-order beams, and optical vortices. In addition to being a route toward scalable trapped ion quantum computing, this platform can enable new capabilities in the contexts of atomic clocks, optical trapping, Rydberg atoms, and more.