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Publication details

Publication CODE Title
IEC 60793-1-49:2018 (2018-08) OPTICAL FIBRES - PART 1-49: MEASUREMENT METHODS AND TEST PROCEDURES - DIFFERENTIAL MODE DELAY
 
Price Excl. VAT Total number of pages, tables and drawings
249.00 € 78.
Description
IEC 60793-49:2018 applies only to multimode, graded-index glass-core (category A1) fibres. The test method is commonly used in production and research facilities, but is not easily accomplished in the field.  This document describes a method for characterizing the modal structure of a graded-index multimode fibre. This information is useful for assessing the bandwidth performance of a fibre especially when the fibre is intended to support a range of launch conditions, for example, those produced by standardized laser transmitters. This third edition cancels and replaces the second edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) better alignment with original intent by filling some omissions and therefore improving measurement rigor;
b) the measurement of fibres with smaller differential mode delay (and higher modal bandwidth) such as type A1a.3 fibres of IEC 60793-2-10  that are used in constructing OM4 performance category cables; new requirements on specifying detector amplitude and temporal response, specimen deployment conditions, four-quadrant scanning, and uniformity of radial locations for calculating bandwidth.
Keywords: modal structure of a graded-index multimode fibre, bandwidth performance
Class  C990  (IEC PUBLICATIONS IEC PUBLICATIONS)
Available files
EN/FR version

Status
Status IEC PUBLICATION
Situation Currently active
Replaces  IEC 60793-1-49:2006
Origin
Committee TC 86/SC 86A
FIBRES AND CABLES (optical)
Responsible Monsieur POLART Jules, Ingénieur
Chaussée de Brunehault, 380
7140  MORLANWELZ
Phone: 064 / 45 16 83
Fax: 064 / 45 16 83
E-mail: jules.polart@ceb-bec.be
Approval
BEC Approval 2018-08-15
ICS-Code (International Standards Classification) 33.180.10
NBN Status New
IEC publication date 2018-08-15
IEC stability date 2021-12-31
IEC file modification date 2018-08-15
IEC last modification date 2018-08-15