Self-alignment of a large-area dual-atom-interferometer gyroscope using parameter-decoupled phase-seeking calibrations

  title={Self-alignment of a large-area dual-atom-interferometer gyroscope using parameter-decoupled phase-seeking calibrations},
  author={Zhanwei Yao and Hong-Hui Chen and Sibin Lu and Runbing Li and Zefeng Lu and Xiao-Li Chen and Geng-hua Yu and Min Jiang and Chuangdong Sun and Wei-Tou Ni and Jin Wang and Mingsheng Zhan},
  journal={Physical Review A},
We report a Mach-Zehnder-type dual-atom-interferometer gyroscope with an interrogation arm of 40-cm length and the interference area up to $1.2\phantom{\rule{0.16em}{0ex}}{\mathrm{cm}}^{2}$. The precise angular alignment of the large-scale separated Raman lasers is demonstrated by seeking the phase intersection of Ramsey-$\mathrm{Bord}\stackrel{\ifmmode \acute{}\else \'{}\fi{}}{\mathrm{e}}$ interferometers after the gravity effect is compensated and by decoupling the velocity dependent cross… 

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