Mach-Zehnder modulator with backplane voltage equalization
US9244327B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2014 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Aug 1, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/127
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Mach-Zehnder optical modulators and IQ modulators based on a series push-pull travelling wave electrode are provided. The modulator includes a conductive backplane providing an electrical signal path. One or more voltage control taps are electrically connected to the conductive backplane within an area underneath the travelling wave electrode and provide an equalizing DC control voltage to the conductive backplane. In other variants, a plurality of conductive backplane segments are provided, and at least one voltage control tap is electrically connected to each conductive backplane segment within an area underneath the travelling wave electrode and provides a DC control voltage to the corresponding conductive backplane segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.