Fabrication of structures in an optical substrate
US7085450B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2004 |
| Grant date | Aug 1, 2006 |
| Priority date | — |
| Expiry date | Dec 22, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02152
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system and method for fabricating structures in an optical substrate. An optical element produces first and second write beams that intersect at a first intersection location at the optical substrate. The first intersection location includes a fringe pattern produced by the first and second write beams. The optical element also produces first and second reference beams that intersect and are recombined at a second intersection location in substantially the same plane as the first intersection location. A controller then controls relative positioning between the optical substrate and the fringe pattern based on a signal derived from the recombined first and second reference beams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.