Patent ID: 11940374
Assignee: HONEYWELL INTERNATIONAL INC.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A continuously tunable radio frequency (RF) sensor system, the sensor system comprising:
a vapor cell including alkali atoms;
an optical train including,
a laser source lock system configured to generate probe light of a first wavelength;
a pump laser system configured to generate pump light of a select second wavelength, the pump laser system including,
at least a first pump laser to generate a first laser light of the select second wavelength,
at least a second pump laser to generate a second laser light of the select second wavelength, the probe light in communication with the first pump laser and the second pump laser to ensure a frequency of the first pump laser and the second pump laser is referenced to the alkali atoms in the vapor cell,
at least one frequency modulator configured to provide a local oscillator and at least one of frequency offsets, time-varying offsets and frequency sweeps to the first laser light and the second laser light,

a switch system configured to pass one of the first laser light and the second laser light to an amplifier, and
a frequency doubler coupled to receive amplified laser light from the amplifier, the frequency doubler configured to double a frequency of the amplified laser light to generate the pump light, the pump light and probe light transmitted through the vapor cell; and

a detector configured to measure the probe light passed through the vapor cell to determine if an RF signal has been detected.