Miniaturized Strontium Atomic Clock using an Integrated Photonics Package

This paper presents the design and fabrication of an integrated photonics package for miniaturizing a strontium atomic clock. The system uses bonded planar platforms combining optical metasurfaces (MSs) with grating outcouplers to generate twelve circularly polarized beams (461 nm and 689 nm) for two MOT stages and collinear lattice/clock beams (813 nm and 698 nm). The compact design (25 mm)³ accommodates a vacuum chamber and enables simultaneous generation of multiple beams with controlled size, polarization, and wavelength, paving the way for scaling down atomic technologies.

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