Laser system with reduced power fluctuations for employment in applications requiring continuous stable light intensity delivery
US5930280A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1998 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Aug 7, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser system is provided for supplying high power, stable light intensity via an aperture limited delivery system to an application requiring continuous light output intensity in spite of the laser source being subjected optical feedback noise caused by external system and delivery system perturbations that cause fluctuation in laser source power intensity. Non-stable light intensity in the output is due to environmental temperature changes, and phase and amplitude changes caused by system induced perturbations such as by movement of the aperture limited delivery system and optical artifacts of the optical elements, comprising the aperture limited delivery system, introducing noise into the feedback in the laser system changing the output intensity pattern of the delivered power beam. This can be substantially remedied by the employing a monolithic, multiple, independent single mode laser source which is substantially unaffected by this noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.