IEC PAS 62614:2009

Fibre optics - Launch condition requirements for measuring multimode attenuation

IEC/PAS 62164:2009(E) which is a pre-standard publication, describes the launch condition requirements used for measuring multimode attenuation in passive components and installed cable plant.

General Information

• Status: Replaced
• Publication Date: 24-Mar-2009
• ICS: 33.180.01 - Fibre optic systems in general
• Technical Committee: TC 86 - Fibre optics
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 22-Jul-2010

Relations

• Replaced By: IEC 62614:2010 - Fibre optics - Launch condition requirements for measuring multimode attenuation
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC/PAS 62614


®

Edition 1.0 2009-03



PUBLICLY AVAILABLE



SPECIFICATION



PRE-STANDARD

Fibre optics - Launch condition requirements for measuring multimode
attenuation




IEC/PAS 62614:2009(E)

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Copyright © 2009 IEC, Geneva, Switzerland



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IEC/PAS 62614


®

Edition 1.0 2009-03



PUBLICLY AVAILABLE



SPECIFICATION



PRE-STANDARD

Fibre optics – Launch condition requirements for measuring multimode
attenuation



INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
K
ICS 33.180.01 ISBN 978-2-88910-817-6
® Registered trademark of the International Electrotechnical Commission

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– 2 – PAS 62614 © IEC:2009(E)



CONTENTS




 FOREWORD.3

1 Scope.4

2 Normative references.4

3 Background on multimode launch conditions .4


4 Terminology.4

5 Test source launch .6
5.1 Encircled flux.6
5.2 Encircled flux template illustration.6
5.3 Encircled flux target for attenuation measurement.7
5.4 Limitations on multimode launch conditions.8
5.5 Encircled flux limits.8

Figure 1 – EF template illustration .7

Table 1 – EF target for 50 μm core fibre at 850 nm .7
Table 2 – EF target for 50 μm core fibre at 1 300 nm .7
Table 3 – EF target for 62,5 μm fibre at 850 nm.8
Table 4 – EF target for 62,5 μm fibre at 1 300 nm.8
Table 5 – Tolerance threshold .8

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PAS 62614 © IEC:2009(E) – 3 –



INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________



FIBRE OPTICS – LAUNCH CONDITION REQUIREMENTS

FOR MEASURING MULTIMODE ATTENUATION



FOREWORD


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A PAS is a technical specification not fulfilling the requirements for a standard, but made
available to the public.

IEC-PAS 62614 has been processed by IEC technical committee 86: Fibre optics.
The text of this PAS is based on the This PAS was approved for
following document: publication by the P-members of the
committee concerned as indicated in
the following document
Draft PAS Report on voting
86/320/PAS 86/324/RVD
Following publication of this PAS, which is a pre-standard publication, the technical committee
or subcommittee concerned may transform it into an International Standard.
This PAS shall remain valid for an initial maximum period of 3 years starting from the
publication date. The validity may be extended for a single 3-year period, following which it
shall be revised to become another type of normative document, or shall be withdrawn.

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– 4 – PAS 62614 © IEC:2009(E)


FIBRE OPTICS – LAUNCH CONDITION REQUIREMENTS

FOR MEASURING MULTIMODE ATTENUATION





1 Scope


This Publicly Available Specification (PAS) describes the launch condition requirements used

for measuring multimode attenuation in passive components and installed cable plant.


In this PAS, the fibre types that are addressed include category A1a (50/125 μm) and A1b (62,5

μm /125 μm) multimode fibres, as specified in IEC 60793-2-10. The nominal test wavelengths
detailed are 850 nm and 1 300 nm. This PAS may be suitable for multimode attenuation
measurements for other multimode categories and/or other wavelengths, but the source
condition for other categories and wavelengths are not defined here.
The purpose of these requirements is as follows:
• to ensure consistency of field measurements when different types of test equipment are
used;
• to ensure consistency of factory measurements when different types of test equipm
...