Characterization of frequency stability in EIT-based atomic clocks using a differential detection scheme

Abstract

We investigate a recently proposed scheme for differential detection of the magneto-optical rotation effect and its application to electromagnetically induced transparency (EIT) atomic clocks. This scheme utilizes a linearly polarized bichromatic laser field that is EIT-resonant with alkali atoms. The results of our study reveal that the suppression of the laser noise can substantially improve the signal-to-noise ratio in EIT atomic clocks. Our preliminary results demonstrate an order of magnitude improvement in clock stability under some conditions when incorporating the differential detection scheme

References in corpus (11)

• Optical Magnetometry
• Resonant nonlinear magneto-optical effects in atoms
• Polarized alkali vapor with minute-long transverse spin-relaxation time
• High-Temperature Alkali Vapor Cells with Anti-Relaxation Surface Coatings
• Investigation of microwave transitions and nonlinear magneto-optical rotation in anti-relaxation-coated cells
• Coherent population trapping resonances with linearly polarized light for all-optical miniature atomic clocks
• Performance of a prototype atomic clock based on lin||lin coherent population trapping resonances in Rb atomic vapor
• Ramsey spectroscopy of high-contrast CPT resonances with push-pull optical pumping in Cs vapor
• Quantitative study of desctructive quantum interference effect on the linklin CPT
• Atomic Clocks and Coherent Population Trapping: Experiments for Undergraduate Laboratories
• High-contrast Coherent Population Trapping based on Crossed Polarizers Method