Transmit optical sub-assembly with local feedback
US10050710B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2016 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | May 25, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/564
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Aspects of a method and system for feedback during optical communications are provided. In one embodiment, a system for optical communications comprises a digital-to-analog converter (DAC), a driver, and a transmit optical subsystem. The DAC is operable to receive a digital code of a plurality of digital codes and output an analog current signal having an analog current level of a plurality of analog current levels. The driver is operable to condition the analog current signal output from the digital-to-analog converter. The transmit optical subsystem is operable to generate an optical signal from the conditioned analog current signal. A digital modification of an input digital signal is dynamically controlled by a feedback path according to one or more characteristics of the optical signal. The one or more characteristics comprise a nonlinearity that may be temperature dependent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.