Methods for SRS protection of laser components and apparatus providing SRS protection
US12142889B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2019 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Dec 4, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1603
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus include a first optical fiber including a core situated to propagate a signal beam at a signal wavelength and an unwanted stimulated Raman scattering (SRS) beam at an SRS wavelength associated with the signal wavelength, and a fiber Bragg grating (FBG) situated in a core of a second optical fiber optically coupled to the core of the first optical fiber, the FBG having a selected grating reflectivity associated with the SRS wavelength and being situated to reflect the SRS beam back along the core of the second optical fiber and to reduce a damage associated with propagation of the SRS beam to power sensitive laser system components optically coupled to the second optical fiber. Methods are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.