Designs and processes for thermally stabilizing a vertical cavity surface emitting laser (vcsel) in a chip-scale atomic clock
US8218590B2 · kind B2 · utility
6Cited by
1References
20Claims
0Family size
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Key dates
| Filing date | Sep 17, 2010 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Mar 3, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/02476
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Designs and processes for thermally stabilizing a vertical cavity surface emitting laser (vcsel) in a chip-scale atomic clock are provided. In one embodiment, a Chip-Scale Atomic Clock includes: a vertical cavity surface emitting laser (vcsel); a heater block coupled to a base of the vcsel; a photo detector; a vapor cell, wherein the vapor cell includes a chamber that defines at least part of an optical path for laser light between the vcsel and the photo detector; and an iso-thermal cage surrounding the vcsel on all sides, the iso-thermal cage coupled to the heater block via a thermally conductive path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.