Patent ID: 9097750
Filing Date: 2015-08-04
Classification: G01R,H03L

Abstract:
1. A dual purpose atomic device for realizing atomic frequency standard and simultaneous magnetic field measurement comprising: an atomic cell containing alkali metal atoms; means for generating bi-chromatic field to facilitate the creation of CPT state in the atomic cell in the low field regime wherein Larmor's frequency is smaller than width of CPT signal and stabilizing the said bi-chromatic field to the center of CPT resonance involving transmission and polarization modification by the CPT state including a radio frequency generator having a VCO to frequency modulate a laser diode generating the bi-chromatic field whereby reference output of stabilized VCO frequency at centre of CPT signal provides atomic frequency standard and means for monitoring and analyzing amplitude and polarization modification of light beam due to the CPT state under the VCO frequency stabilized at the centre of the CPT signal for measuring magnetic field.