Ring laser gyroscope with ion migration field reducer shield
US10330477B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2017 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Sep 1, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/2222
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A ring laser gyroscope comprises a laser block that includes a resonant internal cavity defined by a plurality of surfaces of an optical closed loop pathway, and a plurality of electrodes coupled to the laser block. The electrodes are configured to generate a pair of counter-propagating laser beams from a lasing gas in the optical closed loop pathway. The ring laser gyroscope also includes a field reducer shield comprising an electrically conductive material, with the field reducer shield located completely within the laser block. The field reducer shield is configured to modify an electric field generated by the plurality of electrodes to substantially prevent ions in the laser block from migrating toward the plurality of surfaces of the optical closed loop pathway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.