Quantum interference device, atomic oscillator, electronic apparatus, and moving object comprising FM-modulated adjustment light
US10133095B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 2017 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | May 22, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/26
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A quantum interference device (atomic oscillator) includes: an atom cell that encapsulates an alkali metal; a first light source portion that emits light including a resonance light pair, the resonance light pair being circularly polarized in the same direction and causing the alkali metal to resonate; a second light source portion that emits light including adjustment light, the adjustment light being circularly polarized in a direction opposite to the resonance light pair and causing the alkali metal to resonate; and a light receiving portion that receives the resonance light pair having passed through the atom cell, in which the adjustment light is FM-modulated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.