Mode transition matrix measuring system
US5251002A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 25, 1992 |
| Grant date | Oct 5, 1993 |
| Priority date | — |
| Expiry date | Feb 25, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/33
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A mode transition matrix measuring system for nondestructively calculating mode-dependent losses and coupling of a multi-mode, graded-index, connectorized, passive fiber optic component, the mode transition matrix measuring system comprising mode selective launcher means having a plurality of optical paths with varying launch conditions, input-output optic means having at least one reference optical path and at least one optical path for the passive fiber optic component under test, mode selective detection means having a plurality of optical paths with a variety of mode filters, and means for data storage and matrix calculation, wherein the mode transition matrix and the modal power vector are calculated using measurements of the optical power propagated through optical courses comprising the optical paths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.