IEC 63267-1:2023

IEC 63267-1 ®
Edition 1.0 2023-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – fibre optic
connector optical interfaces –
Part 1: Enhanced macro bend loss multimode 50 μm core diameter fibres –
General and guidance
Dispositifs d'interconnexion et composants passifs fibroniques – Interfaces
optiques de connecteurs fibroniques –
Partie 1: Fibres multimodales de diamètre de cœur de 50 μm à performances
améliorées en matière de pertes par macrocourbures – Généralités et
recommandations
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IEC 63267-1 ®
Edition 1.0 2023-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – fibre optic

connector optical interfaces –

Part 1: Enhanced macro bend loss multimode 50 μm core diameter fibres –

General and guidance
Dispositifs d'interconnexion et composants passifs fibroniques – Interfaces

optiques de connecteurs fibroniques –

Partie 1: Fibres multimodales de diamètre de cœur de 50 μm à performances

améliorées en matière de pertes par macrocourbures – Généralités et

recommandations
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.10 ISBN 978-2-8322-6016-6

– 2 – IEC 63267-1:2023 © IEC 2023
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
0.1 Overview. 5
0.2 Hierarchical relationship . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Document structure . 9
5 Optical datum target . 10
6 Test methods . 11
7 Optical interface grades . 11
8 Key parameters . 12
9 Materials . 12
Bibliography . 13

Figure 1 – Relationship between optical interface standards and interface standards. 6

Table 1 – Multi-part document structure . 10
Table 2 – Multimode attenuation grades at 850 nm . 11
Table 3 – Multimode return loss at 850 nm for physically contacting ferrule designs . 11

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE
COMPONENTS – FIBRE OPTIC CONNECTOR OPTICAL INTERFACES –

Part 1: Enhanced macro bend loss multimode 50 μm core
diameter fibres – General and guidance

FOREWORD
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IEC 63267-1 has been prepared by subcommittee 86B: Fibre optic interconnecting devices and
passive components, of IEC technical committee 86: Fibre optics. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
86B/4657/FDIS 86B/4676/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.

– 4 – IEC 63267-1:2023 © IEC 2023
A list of all parts of the IEC 63267 series, under the general title Fibre optic interconnecting
devices and passive components – Fibre optic connector optical interfaces, can be found on
the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
INTRODUCTION
0.1 Overview
A connector optical interface standard is a multi-part collection of the geometric, dimensional
and material requirements necessary in order to comply with the optical functionality
specifications for a defined interface between two optical fibres. It consists of those essential
features that are functionally critical to the optical attenuation and return loss performance of
an optical interface in the mated condition.
The IEC 63267 series is composed of optical interface standards for multimode connectivity
which provide general information on optical connector interfaces for IEC 60793-2-10,
subcategory A1-OM2b to A1-OM5b multimode fibre, at 850 nm band only.
The IEC 63267 series defines the location of the fibre core in relation to the datum target and
the following key parameters: lateral and angular misalignment, core diameter, numer
...