Linear adaptive optics system in low power beam path and method
US8731013B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2007 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Jul 24, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/2308
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system and method for providing a wavefront corrected high-energy beam of electromagnetic energy. In the illustrative embodiment, the system includes a source of a first beam of electromagnetic energy; an amplifier for amplifying said beam to provide a second beam; a sensor for sensing aberration in said second beam and providing an error signal in response thereto; a processor for processing said error signal and providing a correction signal in response thereto; and a spatial light modulator responsive to said correction signal for adjusting said beam to facilitate a correction of said aberration thereof. In more specific embodiments, the source is a laser and the sensor is a laser wavefront sensor. A mirror is disposed between said modulator and said sensor for sampling said beam. The mirror has an optical thin-film dielectric coating on at least one optical surface thereof. The coating is effective to sample said beam and transmit a low power sample thereof to said means for sensing aberration. The processor is an adaptive optics processor. The spatial light modulator may be a micro electro-mechanical system deformable mirror or an optical phased array. In the illustrative em…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.