Patent ID: 11960247
Assignee: THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An atomic clock comprising:
a light source configured to illuminate a resonance vapor cell;
a narrowband optical filter disposed between the light source and the resonance vapor cell and arranged such that light emitted from the light source passes through the narrowband optical filter and illuminates the resonance vapor cell, wherein the resonance vapor cell is configured to emit a signal corresponding to a hyperfine transition frequency in response to illumination from the light source;
a filter cell comprised at least partially of Rubidium, the filter cell disposed between the light source and the resonance vapor cell and configured to generate optical pumping; and
wherein the narrowband optical filter is disposed on a surface of the filter cell;
an optical detector configured to detect the emitted signal corresponding to the hyperfine transition frequency;
wherein the atomic clock is configured to apply a C field as a magnetic field to produce narrow magnetic resonance linewidth and produce clock stability through low drift clock signal.