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

Claim 9:
10. 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 including,
a master laser to generate a probe light of a first wavelength,
a first optical phase lock loop in communication with a master laser of the laser source lock system,
a frequency comb in communication with the first optical phase lock loop, and
a second optical phase lock loop in communication with the frequency comb;

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 first pump laser and the second pump laser in communication with the second optical phase loop to provide frequency references for the first pump laser and the second pump laser,
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 resonator based fast 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.