QUANTUM DISCRIMINATOR ON GAS CELL Russian patent published in 2013 - IPC H03L7/26 H01S1/06 

FIELD: electricity.

SUBSTANCE: quantum discriminator comprises a magnetic screen, a coil for development of permanent magnetic field, a thermostat with a window of optical pumping, a microwave cavity with a gas cell, an exciter of a microwave field and a photodetector. The microwave cavity comprises a current-conducting body with the main cavity for placement of a gas cell closed at the ends with front and rear current-conducting covers with holes for passage of optical pumping light via the gas cell into the photodetector. In the body of the microwave cavity at both sides of the main cavity symmetrically to its longitudinal axis there are two longitudinal additional cavities. Additional cavities are connected with the main cavity by appropriate longitudinal channels of access in the form of slots arranged symmetrically relative to the longitudinal axis of the main cavity, and also transverse channels of access formed by appropriate grooves in the body and/or front and rear covers. Additional cavities are filled from 20% to 100% of their volume with dielectric inserts. The exciter of microwave field is placed on the cover of the microwave cavity and is arranged in the form of a connection loop with an inner section arranged in the appropriate transverse channel of access, and an outer section arranged on the outer side of the cover.

EFFECT: provision of the possibility to reduce dimensions of a microwave cavity with preservation of its resonant properties.

8 cl, 4 dwg