Optical receiver using single ended voltage offset measurement
US8867929B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2011 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Mar 6, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/6931
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical receiver includes an optical detector that generates a photocurrent at an output. A transimpedance amplifier generates an amplified voltage signal corresponding to the photocurrent generated by the optical detector. An offset voltage generator generates an offset voltage that biases the voltage signal generated by the transimpedance amplifier. A switch having a first input electrically connected to the output of the transimpedance amplifier and a second input electrically connected to the output of the offset voltage generator switches between the offset voltage and the voltage signal generated by the transimpedance amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.