Laser system and method
US9207408B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2014 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | Oct 7, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/094007
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to multiple-modes and mode hopping that result from the use of large-diameter waveguides, and these are addressed. By using multiple small waveguides in parallel, large amounts of energy can be passed through a laser, but with better control such that the aforementioned problems can be reduced. Some embodiments obtain a single beam by combining beams from a plurality of laser waveguides, each having a different wavelength; for example, by using one or more diffraction gratings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.