Optical probe beam stabilization in an atomic sensor system
US9778328B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2014 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Apr 16, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/62
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
One example embodiment includes an atomic sensor system. A probe laser generates a probe beam. A first portion of the probe beam is provided through a sensor cell comprising a first alkali vapor to calculate a measurable parameter of the system based on a first detection beam corresponding to the first portion of the probe beam exiting the sensor cell. A second portion of the probe beam can be provided through a stabilization cell that comprises a second vapor. A detection system can be configured to stabilize the frequency of the probe beam in a manner that is on-resonance with respect to an optical transition wavelength of the second alkali vapor and off-resonance with respect to an optical transition wavelength of the first alkali vapor based on a second detection beam corresponding to the second portion of the probe beam exiting the stabilization cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.