CPT RESONANCE GENERATION METHOD, CPT RESONANCE DETECTION METHOD, CPT RESONANCE GENERATOR, ATOMIC OSCILLATOR, MAGNETIC SENSOR

摘要

PROBLEM TO BE SOLVED: To provide a CPT (Coherent Population Trapping) resonance generation method of small light shift.SOLUTION: In a CPT resonance generation method for generating laser light having at least two wavelengths by current injection into a laser light-emitting element, and irradiating an alkaline metal with the laser light, the value of the DC component of a current applied to the laser light-emitting element is larger than the oscillation threshold of the laser light-emitting element in a first period, and smaller than the value of the DC component of a current in the first period, in a second period following the first period, and Ramsey resonance is generated by repeating the first and second periods a plurality of times.SELECTED DRAWING: Figure 4