Crosstalk reduction in multi-channel acousto-optic modulators
US12218709B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2022 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Dec 7, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/114
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Aspects of the present disclosure describe techniques for controlling coherent crosstalk errors that occur in multi-channel acousto-optic modulators (AOMs) by applying cancellation tones to reduce or eliminate the crosstalk errors. For example, a method and systems are described that include applying a first radio frequency (RF) tone to generate a first acoustic wave in a first channel of the multi-channel AOM, wherein a portion of the first acoustic wave interacts with a second channel to cause a crosstalk effect, and applying a second RF tone to generate a second acoustic wave in the second channel, wherein the second acoustic wave reduces or eliminates the crosstalk effect caused by the portion of the first acoustic wave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.