Multi-frequency Raman amplifier pump source
US6687043B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 2002 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Mar 29, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/094046
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In accordance with the present invention a multifrequency Raman pump laser cavity is disclosed comprising of an angularly dispersive element optically coupled to a shared waveguide terminated in a partially reflecting facet; a plurality of laser diode sources for radiating at frequencies for Raman amplification each for providing laser light at a different frequency and spatially oriented in relation to the angular dispersive element such that light emitted from each source is reflected from the angularly dispersive element toward a same output port; at least two partially reflecting coating for forming a laser cavity therebetween wherein the grating is within the laser cavity or defines a boundary thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.