Quantum interference device, atomic oscillator, and electronic apparatus
US10432205B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2017 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Dec 18, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2200/0044
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A quantum interference device includes: an atomic cell in which alkali metal is sealed; a light source that emits light that excites the alkali metal; a light source temperature adjuster that adjusts temperature of the light source; a light receiver that receives light transmitted through the atomic cell and outputs an output signal in accordance with a light reception intensity; a detector that outputs an output signal in accordance with a chronological change in an amount of the light transmitted through the atomic cell based on the output signal of the light receiver; and a light source temperature controller that controls driving of the light source temperature adjuster based on the output signal of the detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.