Compact dual-channel atomic filter

The invention discloses a compact dual-channel atomic filter. The atomic filter consists of a light shielding box (101), a magnetic shielding box (102), two atomic bubbles (203 and 303), two magnets (103 and 104), two temperature control furnaces (204 and 304), a dual-path temperature controller 105, four polarization beam splitters (201, 206, 301 and 306) and four polarizers (202, 205, 302 and 305). Due to organic integration of dual-pass light aperture magnets, the dual-path temperature controller and the polarization beam splitters, two sets of independent atomic filters are integrated into the compact dual-channel atomic filter, so that the stability and consistency of the dual-channel atomic filter are improved, the size, weight and power consumption of the whole system are reduced, and effective means is provided for long-term stable operation of the atomic filter.