Ramsey-CPT spectrum with the Faraday effect and its application to atomic clocks*
Tian Yuana), Tan Bo-Zhongc), Yang Jingb), Zhang Yib), Gu Si-Honga),b),c)†
       
Amplitude noise under different conditions. Curve a for NFRC scheme, b for FRC scheme after amplification. b′ for FRC scheme, and c for no light being incident on PD.