Method and apparatus for monitoring the power of a laser beam
US5490157A · kind A · utility
2Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1994 |
| Grant date | Feb 6, 1996 |
| Priority date | — |
| Expiry date | May 2, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/13
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for monitoring the power of a laser beam in real time is disclosed. At least one optical fiber is placed through the laser beam, where a portion of light from the laser beam is coupled into the optical fiber. The optical fiber may be maintained in a stationary position or moved periodically over a cross section of the laser beam to couple light from each area traversed. Light reaching both fiber ends is monitored according to frequency and processed to determine the power of the laser beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.