Coherent fiber diffractive optical element beam combiner
US7440174B2 · kind B2 · utility
22Cited by
9References
30Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 24, 2006 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Mar 31, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1307
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical beam combiner and a related method for its operation, in which multiple coherent input beams are directed onto a diffractive optical element (DOE) along directions corresponding to diffraction orders of the DOE, such that the DOE generates a single output beam in a direction corresponding to a desired diffraction order, and suppresses outputs in directions corresponding to unwanted diffraction orders. The phases of the input beams are actively controlled to ensure and maintain the condition that only a single diffraction mode is present in the output of the DOE.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.