IEC 61300-3-47:2014
(Main)Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-47: Examinations and measurements - End face geometry of PC/APC spherically polished ferrules using interferometry
Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-47: Examinations and measurements - End face geometry of PC/APC spherically polished ferrules using interferometry
IEC 61300-3-47:2014 describes a procedure to measure the end face geometry of a spherically polished ferrule or connector. Within this standard the words "ferrule" and "connector" can be used interchangeably.
Keywords: end face geometry, spherically polished ferrule or connector
Dispositifs d'interconnexion et composants passifs fibroniques - Procédures fondamentales d'essais et de mesures - Partie 3-47 : Examens et mesures - Géométrie de l’extrémité des férules PC/APC polies de façon sphérique par interférométrie
IEC 61300-3-47:2014 décrit une procédure de mesure de la géometrie de l'extrémité d'une férule ou d’un connecteur poli de façon sphérique. Dans la présente norme, les termes « férule » et « connecteur » peuvent être utilisés de manière interchangeable.
Mots clés: géométrie de l’extrémité, connecteur poli de façon sphérique ou férule
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IEC 61300-3-47 ®
Edition 1.0 2014-07
INTERNATIONAL
STANDARD
colour
inside
Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures –
Part 3-47: Examinations and measurements – End face geometry of PC/APC
spherically polished ferrules using interferometry
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IEC 61300-3-47 ®
Edition 1.0 2014-07
INTERNATIONAL
STANDARD
colour
inside
Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures –
Part 3-47: Examinations and measurements – End face geometry of PC/APC
spherically polished ferrules using interferometry
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
Q
ICS 33.180.20 ISBN 978-2-8322-1708-5
– 2 – IEC 61300-3-47:2014 © IEC 2014
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Terms and definitions . 5
3 Measurement by interferometer . 7
3.1 General . 7
3.2 Ferrule/connector holder . 7
3.3 Optical interferometric system . 8
3.4 Microscope with camera. 8
4 Requirements for the interferometer . 8
4.1 XY calibration (radius of curvature) . 8
4.2 Z calibration (fibre height) . 8
4.3 Alignment of ferrule axis with the interferometer’s optical axis (apex offset
calibration) . 8
4.4 Tilt and key angle . 8
5 Measurement method . 8
5.1 General . 8
5.2 Measurement regions . 9
5.3 Measurement procedure for the radius of curvature . 9
5.4 Measurement procedure for the dome eccentricity (apex offset) . 10
5.5 Measurement procedure for fibre height . 10
6 Details to be specified . 13
Annex A (normative) Calibration for the interferometer . 14
A.1 XY calibration . 14
A.2 Z calibration . 14
A.3 Alignment of the ferule axis with the optical axis of the interferometer (“apex
offset calibration”) . 14
A.4 Tilt and key angle . 14
Annex B (informative) Measurement procedure for end face “angle error” of angled
convex polished ferrules . 15
Annex C (informative) Formula for calculating ferrule end face geometry . 17
Figure 1 – Radius of curvature of a spherically polished ferrule end face . 5
Figure 2 – Apex offset of a spherically polished ferrule end face . 6
Figure 3 – Fibre height of a spherically polished ferrule end face . 6
Figure 4 – Ferrule end face angle for spherically polished ferrules . 7
Figure 5 – Interferometer . 7
Figure 6 – Ferrule end face and measurement regions . 9
Figure 7 – Ferrule end face surface . 11
Figure 8 – Fitting region and averaging region of the ferrule end face surface . 11
Figure 9 – Converted end face surface of the ferrule . 12
Figure 10 – Converted ferrule end face surface without the extracting region . 12
Figure B.1 – Example of key error calculated from interference pattern for a convex
polished ferrule . 15
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –
Part 3-47: Examinations and measurements –
End face geometry of PC/APC spherically
polished ferrules using interferometry
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
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6) All users should ensure that they have the latest edition of this publication.
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International Standard IEC 61300-3-47 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
This standard merges IEC 61300-3-15, IEC 61300-3-16, IEC 61300-3-17 and IEC 61300-3-23.
After publication of this standard IEC 61300-3-15, IEC 61300-3-16, IEC 61300-3-17 and
IEC 61300-3-23 will be withdrawn.
– 4 – IEC 61300-3-47:2014 © IEC 2014
The text of this standard is based on the following documents:
FDIS Report on voting
86B/3773/FDIS 86B/3805/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.
A list of all parts in the IEC 61300 series, published under the general title, Fibre optic
interconnecting and passive components – Basic test and measurement procedures, can be
found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability 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.
A bilingual version of this publication may be issued at a later date.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –
Part 3-47: Examinations and measurements –
End face geometry of PC/APC spherically
polished ferrules using interferometry
1 Scope
This part of IEC 61300 describes a procedure to measure the end face geometry of a
spherically polished ferrule or connector. Within this standard the words “ferrule” and
“connector” can be used interchangeably.
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1
radius of curvature
B
radius
...
IEC 61300-3-47 ®
Edition 1.0 2014-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures –
Part 3-47: Examinations and measurements – End face geometry of PC/APC
spherically polished ferrules using interferometry
Dispositifs d’interconnexion et composants passifs fibroniques – Procédures
fondamentales d’essais et de mesures –
Partie 3-47: Examens et mesures – Géométrie de l’extrémité des férules PC/APC
polies de façon sphérique par interférométrie
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
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and withdrawn publications. Also known as the International Electrotechnical Vocabulary
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IEC 61300-3-47 ®
Edition 1.0 2014-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures –
Part 3-47: Examinations and measurements – End face geometry of PC/APC
spherically polished ferrules using interferometry
Dispositifs d’interconnexion et composants passifs fibroniques – Procédures
fondamentales d’essais et de mesures –
Partie 3-47: Examens et mesures – Géométrie de l’extrémité des férules PC/APC
polies de façon sphérique par interférométrie
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.20 ISBN 978-2-8322-7188-9
– 2 – IEC 61300-3-47:2014 © IEC 2014
CONTENTS
CONTENTS . 2
FOREWORD . 3
1 Scope . 5
2 Terms and definitions . 5
3 Measurement by interferometer . 7
3.1 General . 7
3.2 Ferrule/connector holder . 7
3.3 Optical interferometric system . 8
3.4 Microscope with camera. 8
4 Requirements for the interferometer . 8
4.1 XY calibration (radius of curvature) . 8
4.2 Z calibration (fibre height) . 8
4.3 Alignment of ferrule axis with the interferometer’s optical axis (apex offset
calibration) . 8
4.4 Tilt and key angle . 8
5 Measurement method . 8
5.1 General . 8
5.2 Measurement regions . 8
5.3 Measurement procedure for the radius of curvature . 9
5.4 Measurement procedure for the dome eccentricity (apex offset) . 10
5.5 Measurement procedure for fibre height . 10
6 Details to be specified . 13
Annex A (normative) Calibration for the interferometer . 14
A.1 XY calibration . 14
A.2 Z calibration . 14
A.3 Alignment of the ferule axis with the optical axis of the interferometer (“apex
offset calibration”) . 14
A.4 Tilt and key angle . 14
Annex B (informative) Measurement procedure for end face “angle error” of angled
convex polished ferrules . 15
Annex C (informative) Formula for calculating ferrule end face geometry . 17
Figure 1 – Radius of curvature of a spherically polished ferrule end face . 5
Figure 2 – Apex offset of a spherically polished ferrule end face . 6
Figure 3 – Fibre height of a spherically polished ferrule end face . 6
Figure 4 – Ferrule end face angle for spherically polished ferrules . 7
Figure 5 – Interferometer . 7
Figure 6 – Ferrule end face and measurement regions . 9
Figure 7 – Ferrule end face surface . 11
Figure 8 – Fitting region and averaging region of the ferrule end face surface . 11
Figure 9 – Converted end face surface of the ferrule . 12
Figure 10 – Converted ferrule end face surface without the extracting region . 12
Figure B.1 – Example of key error calculated from interference pattern for a convex
polished ferrule . 15
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –
Part 3-47: Examinations and measurements –
End face geometry of PC/APC spherically
polished ferrules using interferometry
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out
...
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