Low white frequency noise tunable semiconductor laser source
US8619824B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2011 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Jan 17, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4006
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A low white frequency noise tunable semiconductor laser source is presented. The laser source includes a single-mode semiconductor laser assembly which generates a laser beam having a tunable frequency over a spectral range of interest. An optical filter is provided in the path of the laser beam. The optical filter has multiple spectral features distributed over the entire spectral range of interest. Each spectral feature has a narrow spectral range. A locking mechanism is further provided and is controllable for locking a spectral alignment between the frequency of the laser beam and any selected one of the spectral features of the optical filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.