Optical modulator with twisted electrodes
US12298648B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2022 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Aug 15, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/2257
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A significant challenge occurs when two Mach-Zehnder optical modulators are placed in close proximity next to one another, resulting in substantial cross talk. An optical modulator configured to reduce crosstalk between adjacent optical modulators includes a positive polarity signal electrode electrically coupled between a driver and an optical phase shifting section, and a negative polarity signal electrode electrically. The positive polarity signal electrode comprises a first positive polarity signal electrode section extending adjacent to a first optical waveguide path, and a second positive polarity signal electrode section extending adjacent to a second optical waveguide path. The negative polarity signal electrode comprises a first negative polarity signal electrode section extending adjacent to the second optical waveguide path and the first positive polarity signal electrode section, and a second negative polarity signal electrode section extending adjacent to the first optical waveguide path and the second positive polarity electrode section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.