Quasi-linear spin torque nano-oscillators
US-2015372687-A1 · Dec 24, 2015 · US
Optically pumped atomic clock and associated manufacturing process
US2019123750A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019123750-A1 |
| Application number | US-201816165945-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 19, 2018 |
| Priority date | Oct 23, 2017 |
| Publication date | Apr 25, 2019 |
| Grant date | — |
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Abstract
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An optically pumped atomic clock includes an optically pumped atomic resonator provided with a vacuum-tight envelope equipped with optical interfaces and comprising, inside the vacuum-tight envelope a resonant cavity, optical mirrors, and caesium traps made of graphite, and outside the vacuum-tight envelope a vacuum pump, a magnetic shield, a magnetic field coil, an RF cable, a caesium oven, and an interface for connection with the caesium oven.
First claim
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1 . An optically pumped atomic clock comprising: an optically pumped atomic resonator provided with a vacuum-tight envelope equipped with optical interfaces and comprising, inside the vacuum-tight envelope: a resonant cavity optical mirrors, and caesium traps made of graphite, and outside the vacuum-tight envelope: a vacuum pump, a magnetic shield, a magnetic field coil, an RF cable, a caesium oven, and an interface for connection with the caesium oven. 2 . The optically pumped atomic clock according to claim 1 , wherein the vacuum-tight envelope is made of titanium. 3 . The optically pumped atomic clock according to claim 1 , wherein the vacuum-tight envelope comprises two portions and a brazing alloy joining the two portions of the vacuum-tight envelope. 4 . The optically pumped atomic clock according to claim 3 , wherein the brazing alloy comprises titanium. 5 . The optically pumped atomic clock according to claim 3 , wherein the brazing alloy comprises gold. 6 . The optically pumped atomic clock according to claim 3 , wherein the brazing alloy comprises copper. 7 . The optically pumped atomic clock according to claim 1 , wherein said resonant cavity and said optical components comprise a copper coating. 8 . A process for manufacturing an optically pumped atomic clock according to claim 1 , comprising a step of manufacturing an optically pumped atomic resonator provided with a vacuum-tight envelope comprising sub-steps consisting in: producing two portions of the vacuum-tight envelope by 3-D printing; and brazing alloying the two portions of the vacuum-tight envelope. 9 . The process according to claim 8 , comprising a sub-step consisting in covering the resonant cavity and the optical components inside the vacuum-tight envelope with copper. 10 . The process according to claim 8 , wherein the vacuum-tight envelope is made of titanium and the brazing alloy between the two portions of the vacuum-tight envelope is a direct brazing alloy. 11 . The process according to claim 8 , wherein the vacuum-tight envelope is made of titanium and the brazing alloy between the two portions of the vacuum-tight envelope comprises gold. 12 . The process according to claim 8 , wherein the vacuum-tight envelope is made of titanium and the brazing alloy between the two portions of the vacuum-tight envelope comprises copper.
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- What does patent US2019123750A1 cover?
- An optically pumped atomic clock includes an optically pumped atomic resonator provided with a vacuum-tight envelope equipped with optical interfaces and comprising, inside the vacuum-tight envelope a resonant cavity, optical mirrors, and caesium traps made of graphite, and outside the vacuum-tight envelope a vacuum pump, a magnetic shield, a magnetic field coil, an RF cable, a caesium oven, an…
- Who is the assignee on this patent?
- Thales Sa
- What technology area does this patent fall under?
- Primary CPC classification H03L7/26. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Apr 25 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).