IEC 61755-3-7:2009

Fibre optic interconnecting devices and passive components - Fibre optic connector optical interfaces - Part 3-7: Optical interface, 2,5 mm and 1,25 mm diameter cylindrical PC composite ferrule using titanium as fibre surrounding material, single mode fibre

IEC 61755-3-7:2009 defines dimensional limits and material properties of a 2,5 mm and a 1,25 mm diameter cylindrical composite ferrule optical interface to meet specific requirements for PC fibre-to-fibre interconnection. The composite ferrule uses different materials in the end face contact zone and in ferrule to sleeve contact zone. The specified materials for each zone are zirconia (ZrO2) for the ferrule to sleeve contact zone and titanium for the end face contact zone. Ferrules made from the material specified in this standard are suitable for use in categories C, U, E and O as defined in IEC 61753-1.

Dispositifs d'interconnexion et composants passifs à fibres optiques - Interfaces optiques de connecteurs pour fibres optiques - Partie 3-7 : Interfaces optiques, férules composites cylindriques PC, de diamètre 2,5 mm et 1,25 mm, utilisant le titane comme matériau entourant la fibre, fibres unimodales

La CEI 61755-3-7:2009 définit les limites dimensionnelles et les propriétés du matériau de l'interface optique d'une férule cylindrique en composite, de diamètre 2,5 mm et 1,25 mm afin de satisfaire aux exigences des interconnexions fibre-à-fibre PC. La férule composite met en jeu différents matériaux dans la zone de contact des extrémités de fibres, et dans la zone de contact manchon - férule. Les matériaux spécifiques pour chaque zone sont le zircone (ZrO2) pour la zone de contact férule - manchon, et le titane pour la zone de contact de l'extrémité. Les férules constituées par le matériau spécifié dans la présente norme sont adaptées à une utilisation dans les catégories C, U, E et O, telles que définies dans la CEI 61753-1.

General Information

• Status: Published
• Publication Date: 11-Jan-2009
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: SC 86B - Fibre optic interconnecting devices and passive components
• Current Stage: PPUB - Publication issued
• Start Date: 31-Jan-2009
• Completion Date: 12-Jan-2009

Standards Content (Sample)

IEC 61755-3-7
Edition 1.0 2009-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Fibre optic
connector optical interfaces –
Part 3-7: Optical interface, 2,5 mm and 1,25 mm diameter cylindrical PC composite
ferrule using titanium as fibre surrounding material, single mode fibre

Dispositifs d'interconnexion et composants passifs à fibres optiques – Interfaces
optiques de connecteurs pour fibres optiques –
Partie 3-7: Interfaces optiques, férules composites cylindriques PC, de diamètre
2,5 mm et 1,25 mm, utilisant le titane comme matériau entourant la fibre, fibres
unimodales
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IEC 61755-3-7
Edition 1.0 2009-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Fibre optic
connector optical interfaces –
Part 3-7: Optical interface, 2,5 mm and 1,25 mm diameter cylindrical PC composite
ferrule using titanium as fibre surrounding material, single mode fibre

Dispositifs d'interconnexion et composants passifs à fibres optiques – Interfaces
optiques de connecteurs pour fibres optiques –
Partie 3-7: Interfaces optiques, férules composites cylindriques PC, de diamètre
2,5 mm et 1,25 mm, utilisant le titane comme matériau entourant la fibre, fibres
unimodales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
K
CODE PRIX
ICS 33.180.20 ISBN 978-2-88910-570-0
– 2 – 61755-3-7 © IEC:2009
CONTENTS
FOREWORD.3
1 Scope.5
2 Description .5
3 Interface parameters for PC ferrule independent from the ferrule material .6
Annex A (informative) .9
Bibliography.10

Figure 1 – Interface dimensions for PC ferrule .6
Figure 2 – Fibre core location .6
Figure 3 – Interface dimension of the end-face contact zone.7

Table 1 – Optical interface parameter values for 2,5 mm diameter PC ferrule .7
Table 2 – Optical interface parameter values for 1,25 mm diameter PC ferrule .8

61755-3-7 © IEC:2009 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
FIBRE OPTIC CONNECTOR OPTICAL INTERFACES –

Part 3-7: Optical interface, 2,5 mm and 1,25 mm diameter
cylindrical PC composite ferrule using titanium as fibre
surrounding material, single mode fibre

FOREWORD
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International Standard IEC 61755-3-7 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
The text of this standard is based on the following documents:
FDIS Report on voting
86B/2768/FDIS 86B/2801/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – 61755-3-7 © IEC:2009
A list of all parts of the IEC 61755 series, published under the general title Fibre optic
interconnecting devices and passive components – Fibre optic connector optical interfaces, can be
found on the IEC website.
Future standards in this series will carry the new general title as cited above. Titles of existing
standards in this series will be updated at the time of the next edition.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
61755-3-7 © IEC:2009 – 5 –
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
FIBRE OPTIC CONNECTOR OPTICAL INTERFACES –

Part 3-7: Optical interface, 2,5 mm and 1,25 mm diameter
cylindrical PC composite ferrule using titanium as fibre
surrounding material, single mode fibre

1 Scope
This part of IEC 61755 defines dimensional limits and material properties of a 2,5 mm and a
1,25 mm diameter cylindrical composite ferrule optical interface to meet specific requirements
for PC fibre-to-fibre interconnection. The composite ferrule uses different materials in the end
face contact zone and in ferrule to sleeve contact zone. The specified materials for each zone
are zirconia (ZrO ) for the ferrule to sleeve contact zone and titanium for the end face contact
zone. Ferrules made from the material specified in this standard are suitable for use in
categories C, U, E and O as defined in IEC 61753-1.
NOTE If mated within the same family (cylindrical PC ferrule), the ferrules specified in this standard are intended
to have the same optical attenuation performance grade for connections with all ferrules described in different
parts of IEC 61775-3.
2 Description
The performance of a cylindrical ferrule optical interface is determined by the accuracy with
which the optical datum targets of two mating ferrules are aligned with each other. There are
three conditions affecting the alignment of two optical datum targets, lateral offset, angular
offset and longitudinal offset.
Parameters influencing the lateral and angular offset of the optical fibre axes include the
following:
• ferrule outside diameter;
• fibre hole concentricity relative to the ferrule outside diameter;
• fibre hole angle relative to outside diameter axis;
• fibre cladding diameter to fibre hole clearance;
• alignment sleeve inside diameter;
• fibre core concentricity relative to the cladding diameter;
• fibre core orientation relative to keying feature.
Parameters influencing the longitudinal offset of the optical fibre axes include the following:
• end face spherical radius;
• end face spherical radius apex offset;
• fibre undercut;
• axial force on ferrule end face;
• ferrule and fibre material physical constants;
• alignment sleeve frictional force.

– 6 – 61755-3-7 © IEC:2009
3 Interface parameters for
...