Patent ID: 9294109
Filing Date: 2016-03-22
CPC Classification: G01R,G04F,G21K,H01S,H03L

Claim Text:
1. An optical module for an atomic oscillator using a quantum interference effect, comprising: a light source part configured to emit resonant light having two different wavelengths; a gas cell in which an alkali metal atom gas is enclosed and to which the resonant light is irradiated; a light detection part configured to detect an intensity of the resonant light transmitted through the gas cell; and a gas-flow generation part configured to generate a flow of the alkali metal atom gas, wherein a gas flow direction of the alkali metal atom gas generated by the gas-flow generation part is parallel to a resonant light traveling direction in the gas cell, the resonant light only passes through a position offset from a center of the gas cell, the gas cell is a rectangular parallelepiped, the gas-flow generation part includes a first heater provided on a first surface of the gas cell and a second heater provided on a second surface opposite to the first surface of the gas cell, and a temperature of the first heater at time of use is higher than a temperature of the second heater at the time of use.