Method and apparatus for automatically controlling bias voltage of optical modulator
US10177852B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2015 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | May 4, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/564
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present disclosure discloses a method and an apparatus for automatically controlling a bias voltage of an optical modulator. The method includes: calculating a new Q bias voltage based on an acquired Q reference phase, a Q harmonic phase, a Q harmonic amplitude, a Q bias voltage and a Q error feedback coefficient, calculating a new I bias voltage based on an I reference phase, an I harmonic phase, an I harmonic amplitude, an I bias voltage and an I error feedback coefficient, and calculating a new P bias voltage based on a P reference phase, a P harmonic phase, a P harmonic amplitude, a P bias voltage and a P error feedback coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.