Multimode fiber transmission system
US7454108B2 · kind B2 · utility
1Cited by
0References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2005 |
| Grant date | Nov 18, 2008 |
| Priority date | — |
| Expiry date | Feb 28, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/255
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical signal propagating through a transmission line of a multimode fiber is branched by an MMF coupler of a reception device, and the intensity of the signal is detected by a MMF monitor PD. After connecting from the multimode fiber to a single-mode fiber, the optical signal is branched by a SMF coupler, and the intensity of the optical signal after the connection by a SMF monitor PD is detected. A coupling loss is calculated from the two detection results and the status of the occurrence of an error rate is estimated from the obtained coupling loss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.