Method and apparatus for providing a uniform beam from a laser-light-source
US6532244B1 · kind B1 · utility
23Cited by
3References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2000 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Feb 12, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/005
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An illumination system includes a multimode diode-laser and two optical fibers. Light from the diode-laser is directed into the first optical fiber having a first core diameter. The light exits the first optical fiber and is directed by an optical system into a second optical fiber having a core diameter greater than the first optical fiber and a numerical aperture greater than the numerical aperture of the optical system. A light beam exiting the second optical fiber has an intensity distribution having sharp edges and uniformity better than plus or minus ten percent over a central ninety percent of the beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.