Accession Number : ADD015973
Title : Mode Transition Matrix Measuring System.
Descriptive Note : Patent, Filed 25 Feb 92, patented 5 Oct 93,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Gryk, thomas J
Report Date : 05 Oct 1993
Pagination or Media Count : 9
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.
Descriptors : *FIBER OPTICS, *PATENTS, *OPTICAL CIRCUITS, COUPLINGS, DETECTION, FILTERS, LAUNCHERS, LOSSES, MEASUREMENT, OUTPUT, PATHS, POWER, TEST AND EVALUATION, TRANSITIONS, PHOTODIODES, OPTICAL SWITCHING
Subject Categories : Fiber Optics and Integrated Optics
Electrooptical and Optoelectronic Devices
Distribution Statement : APPROVED FOR PUBLIC RELEASE