Rapid extraction of the phase shift of the cold-atom interferometer via phase demodulation*
Cheng Binga), Wang Zhao-Yinga), Xu Ao-Penga), Wang Qi-Yua), Lin Qianga),b)
       
The measured phase shift terms independent of the Raman wavevector versus the interrogation time T . The solid and dash lines are the scanning T 2 phase demodulations with 0.5 A and 1.0 A bias fields, respectively; and the squares and triangles are the fixed T fringe fitting measurements with 0.5 A and 1.0 A bias fields, respectively.