Wavelength locker and optical system using the same
US6639922B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Feb 23, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/0687
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus for use in tuning a tunable optical device to a target wavelength, the apparatus comprising: a beam splitter for tapping a portion of the light emerging from the tunable optical device; a walk-off reflector for dividing the portion of the light emerging from the beam splitter into a plurality of beams; a multiple etalon for tailoring the light from at least two of the plurality of beams provided by the walk-off reflector; a multiple detector for detecting light from the multiple etalon and the walk-off reflector, the multiple detector providing a plurality of output signals; and a control unit for controlling the tunable optical device by providing a control signal to the tunable optical device according to the output signals provided by the multiple detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.