Single-mode 1.times.N holographic fiber optics coupler
US4907851A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 22, 1987 |
| Grant date | Mar 13, 1990 |
| Priority date | — |
| Expiry date | Sep 22, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2848
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A holographic 1.times.N single-mode fiber optics coupler for coupling a single-mode monochromatic fiber optics input to N single-mode fiber optics outputs. A hologram of the output fiber bundle or the equivalent is recorded and then a reconstructed image is generated by illuminaing the hologram by means of a single-mode input signal on a single-mode optical fiber. The holographically generated image of the original fiber optics bundle is then coupled to the original fiber bundle or a substantially equivalent output fiber optics bundle providing a high efficiency, compact, and low cost 1.times.N fiber optics coupler with self-alignment features.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.