Integrated reading and writing of a hologram with a rotated reference beam polarization
US6956681B2 · kind B2 · utility
4Cited by
4References
38Claims
0Family size
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Key dates
| Filing date | Feb 13, 2002 |
| Grant date | Oct 18, 2005 |
| Priority date | — |
| Expiry date | Feb 13, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for monitoring diffraction while recording a hologram includes: generating a source beam; generating a data beam by projecting a first component of the source beam through a data source, the data beam having a first polarization; generating a reference beam by adjusting a polarization of a second component of the source beam to provide a second polarization; recording a hologram in a holographic medium from an interference between the data beam and the reference beam; and measuring an offset component in an output arm of the data beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.