Fig. 7: SWAP comparison between existing clock systems. | Nature Communications

Fig. 7: SWAP comparison between existing clock systems.

From: Demonstration of a mobile optical clock ensemble at sea

Fig. 7

Fractional frequency stability at 1 s vs Size-Weight-and-Power of UofA Yb, UofA Rb and ORAFS, compared to a limited selection of commercially available and emerging microwave (red) and optical (blue) portable atomic clocks. CSAC: Microchip Chip scale atomic clock33; PRS 10: Stanford Research Systems Low phase noise Rb oscillator50; 5071A: Microchip 5071A Primary frequency standard34; SD cRb: SpectraDynamics cold Rubidium microwave atomic clock51; MuClock: Muquans MuClock52; MHM Maser: Microchip MHM-2020 Active hydrogen maser53; DSAC: Deep space atomic clock54; NPL Cs: National Physics Laboratory Cs Fountain55; VA: Vector Atomic Evergreen-3036; OptiClock: Yb ion clock30; Tiqker: Infleqtion Tiqker56; WIPM 2020: Ca ion clock32; LENS: Sr Lattice clock23; RIKEN: Sr Lattice clock57; PTB: Sr Lattice clock31. This has been reproduced from ref. 58.

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