Apparatus for generating independent coherent beam array
US6292304A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2000 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | May 1, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for generating an independent coherent beam array from a single light source, in which individual coherent beams are selectively activated. The independent coherent beam array generating apparatus, which ensures high-efficient independent coherent beams from a single light source, are implemented by using a phase grating and a spacial light modulator. The number of multiple beams to be used as a light source for high-density recording and reading can be adjusted by varying the design of the phase grating. Regardless of the number of light sources required in various applications, once the beam array generating apparatus is adopted to the applications, the desired function of the applications can be implemented at low cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.