Scalable waveguide-mode coupler for an optical receiver or transmitter
US8582933B2 · kind B2 · utility
7Cited by
16References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 7, 2011 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Sep 30, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29373
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A waveguide-mode (WM) coupler having a plurality of single-mode fibers, each optically coupled to a different respective waveguide mode of a multimode fiber. The coupling optics employed by the WM coupler are scalable and include reflective fiber-tip coatings, polarization beam splitters, phase masks, and quarter-wave plates configured to overlap and/or separate the optical beams corresponding to different waveguide modes of the multimode fiber in a manner that does not cause a significant increase in the optical insertion losses with an increase in the number of optical channels in the WM coupler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.