Bragg grating and method of producing a bragg grating using an ultrafast laser
US6993221B2 · kind B2 · utility
21Cited by
21References
14Claims
0Family size
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Key dates
| Filing date | Aug 13, 2003 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Dec 20, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/02161
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A novel method and apparatus for varying the index of refraction of a material using an interference pattern is disclosed. The method and apparatus incorporate an ultra short duration pulse laser source. Electromagnetic radiation provided from the laser propagates to a diffractive element positioned in close proximity to the target material. The diffracted electromagnetic radiation forms an interference pattern, the peaks of which are sufficiently intense to cause a change in index of refraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.