Laser device
US10056734B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2015 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Jun 1, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/08059
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A frequency tuneable laser device includes a cavity mode selector and a cavity tuning arrangement. The cavity mode selector has a frequency response with a selection feature that is alignable in frequency with a selected cavity mode of the laser device. The cavity tuning arrangement includes a plurality of reflective elements arranged in optical series, and is used to adjust the effective optical path length of the laser cavity to move the cavity modes in frequency. The laser device further includes making the cavity mode selector and the cavity tuning arrangement perform a simultaneous coordinated movement such that respective frequencies of the selection feature and the selected cavity mode vary with substantially the same dependence on a parameter characterizing the simultaneous coordinated movement. For example, a periscope with a co-rotating etalon can be used to provide mode hop free tuning of the laser device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.