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

Claim 5:
6. An atomic clock comprising:
a light emitting diode or quantum dot laser, configured to illuminate a resonance vapor cell;
a narrowband optical filter disposed on a surface of a filter cell disposed between the light emitting diode or quantum dot laser and the resonance vapor cell and arranged such that light emitted from the light emitting diode or quantum dot laser 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 emitting diode or quantum dot laser and wherein the filter cell is comprised at least partially of Rubidium;
and
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.