Optical receiver based on a decision feedback equalizer
US8879927B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2011 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | May 10, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03057
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical receiver, a method of operating an optical receiver, a correction based transimpedance amplifier circuit, and a method of adjusting an output of a transimpedance amplifier. In one embodiment, the optical receiver comprises an optical-to-electrical converter, a transimpedance amplifier, and a correction circuit. The optical-to-electrical converter is provided for receiving an optical signal and converting the optical signal to an electrical signal. The transimpedance amplifier is provided for receiving the electrical signal from the optical-to-electrical converter and for generating from the electrical signal an amplified electrical signal. The amplified electrical signal has inter symbol interference resulting from a reduced bandwidth of the transimpedance amplifier. The correction circuit is provided for receiving the amplified electrical signal from the transimpedance amplifier and for generating, from the amplified electrical signal, an output signal including corrections for the inter symbol interference in the amplified electrical signal effectively increasing a bandwidth of the optical receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.