| 摘要 |
PROBLEM TO BE SOLVED: To adjust sensitivity to a magnetic field on the basis of an amount of light incident into a cell.SOLUTION: A magnetic field measuring apparatus 2 comprises: a gas cell 50 containing alkali metal atoms therein; a driver 124 adjusting power supplied to a heater 122 so that a temperature of the gas cell 50 falls within a predetermined range including a preset temperature; a light source 10 emitting a laser beam interacting with the alkali metal atoms to the gas cell 50; an optical fiber 30 guiding the laser beam from the light source 10 toward the gas cell 50; a light amount monitor 121 measuring an amount of the laser beam passing through the optical fiber 30; and a control section 125 controlling the preset temperature adjusted by the driver 124 on the basis of the amount of the laser beam measured by the light amount monitor 121. |
