Apparatus for simultaneous spatial modulation of incoherent/coherent angulary multiplexed optical beams
US6445470B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2000 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Aug 27, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H1/265
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Novel apparatus for simultaneous spatial modulation of a set of angularly multiplexed individually coherent but mutually incoherent optical beams is disclosed, comprising means for generating a set of two or more individually coherent beams that have at least one optical wavelength in common, pairwise, and are assured to be mutually incoherent, and means for directing the set of individually coherent but mutually incoherent beams to a spatial modulation means, such that a spatially overlapping group of individually coherent but mutually incoherent beams overlap spatially in at least one region of the spatial modulation means and are angularly multiplexed within the region. Such simultaneous spatial modulation is a key feature, for example, in highly multiplexed photonic interconnection, memory, and display systems with maximum optical throughput efficiency and minimum crosstalk, based on parallel incoherent/coherent double angularly multiplexed holographic recording and readout principles. Simultaneous spatial modulation is also of importance for the provision for arbitrarily weighted and independent interconnections in the development of densely interconnected photonic implementat…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.