Invention Grant
- Patent Title: Low power reduction of biases in a micro primary frequency standard
- Patent Title (中): 微型主频率标准中的低功耗降低
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Application No.: US13759444Application Date: 2013-02-05
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Publication No.: US09077354B2Publication Date: 2015-07-07
- Inventor: Jennifer S. Strabley , Kenneth Salit , Karl D. Nelson , Ben Luey , Mike Anderson
- Applicant: Honeywell International Inc.
- Applicant Address: US NJ Morristown
- Assignee: Honeywell International Inc.
- Current Assignee: Honeywell International Inc.
- Current Assignee Address: US NJ Morristown
- Agency: Fogg & Powers LLC
- Main IPC: H03L7/26
- IPC: H03L7/26 ; G04F5/14
Abstract:
A method for reducing or eliminating clock bias in an atomic clock is provided. The method comprises cooling a population of atoms collected in the atomic clock using a laser locked at a predetermined frequency, turning off the laser, performing atomic clock spectroscopy, turning on the laser after the atomic clock spectroscopy, and relocking the frequency of the laser to an external reference cell. The population of atoms that are in each of two ground hyperfine levels is then probed using laser light that is on or near-resonant with a selected atomic transition.
Public/Granted literature
- US20130265112A1 LOW POWER REDUCTION OF BIASES IN A MICRO PRIMARY FREQUENCY STANDARD Public/Granted day:2013-10-10
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