Adaptive optics based simultaneous turbulence compensation of multiple orbital angular momentum beams
US9780872B2 · kind B2 · utility
3Cited by
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20Claims
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Key dates
| Filing date | Jul 23, 2015 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Oct 17, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/1121
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An adaptive optics compensation approach for an OAM multiplexed FSO communication system is described, in which a Gaussian beam is used to probe the turbulence-induced wavefront distortions and derive the correction pattern for compensating the OAM beams. Using this approach, we demonstrate simultaneous compensation of multiple OAM beams each carrying a 100-Gbit/s data channel through emulated atmospheric turbulence. The results indicate that the turbulence-induced crosstalk and power penalty could be efficiently mitigated by ˜12.5 dB and ˜11 dB respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.