QUANTUM FREQUENCY STANDARD Russian patent published in 2011 - IPC H03L7/26 H01S3/137 H01S1/00 

FIELD: physics.

SUBSTANCE: proposed quantum frequency standard comprises laser connected to cell whereto connected are magnetic field generation unit and thermal stabilisation unit. Cell output is connected with first photo detector with its output connected to first sync detector whereto connected is output of first modulator. Second output of the latter is connected to SHF-generator control signal shaper unit whereto connected is output of first sync detector. Reference radiation source and laser are connected with second photo detector with its output connected to second sync detector whereto connected is output of second modulator. Second output of the latter is connected with just introduced HF-generator control signal shaper. HF-generator output and SHF-generator first output are connected with pump current source connected with laser electric input. Note here that SHF-generator second output is connected with HF-generator.

EFFECT: higher stability of output frequency.

3 dwg