Optical link characterization
US8078053B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2008 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Sep 10, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/073
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Various example embodiments are disclosed. According to one example embodiment, a method may include transmitting a semiconductor laser-generated optical signal from a first end of a multi-mode fiber (MMF) optical link to a second end of the link. The optical signal may have a reference bandwidth at the first end of the link. The method may further include converting the optical signal to an electrical signal. The method may further include analyzing the electrical signal with an electronic dispersion compensator to determine an effective modal bandwidth (EMBW) of the received optical signal. The method may further include analyzing the electrical signal with an electronic dispersion compensator to determine an intersymbol interference (ISI) penalty of the optical link. The method may further include comparing the EMBW and the ISI penalty to predetermined threshold values of a tolerable EMBW and a tolerable ISI penalty, respectively, to characterize the optical link as acceptable or unacceptable for use as a communications link with a predetermined communications protocol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.