SIST EN 60875-1:2015

SLOVENSKI STANDARD
SIST EN 60875-1:2015
01-oktober-2015
1DGRPHãþD
SIST EN 60875-1:2010
2SWLþQLVSRMQLHOHPHQWLLQSDVLYQHNRPSRQHQWH9DORYQRGROåLQVNRQHVHOHNWLYQL
RSWLþQLVNORSQLNLGHO5RGRYQDVSHFLILNDFLMD,(&
Fibre optic interconnecting devices and passive components - Non-wavelength-selective
fibre optic branching devices - Part 1: Generic specification (IEC 60875-1:2015)
Lichtwellenleiter - Verbindungselemente und passive Bauteile -
wellenlängenunabhängige Lichtwellenleiter-Verzweiger - Teil 1: Fachgrundspezifikation
(IEC 60875-1:2015)
Dispositifs d’interconnexion et composants passifs à fibres optiques - Dispositifs de
couplage pour fibres optiques ne dépendant pas de la longueur d’onde - Partie 1:
Spécification générique (IEC 60875-1:2015)
Ta slovenski standard je istoveten z: EN 60875-1:2015
ICS:
33.180.20 3RYH]RYDOQHQDSUDYH]D Fibre optic interconnecting
RSWLþQDYODNQD devices
SIST EN 60875-1:2015 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60875-1:2015

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SIST EN 60875-1:2015


EUROPEAN STANDARD EN 60875-1

NORME EUROPÉENNE

EUROPÄISCHE NORM
July 2015
ICS 33.180.20 Supersedes EN 60875-1:2010
English Version
Fibre optic interconnecting devices and passive components -
Non-wavelength-selective fibre optic branching devices - Part 1:
Generic specification
(IEC 60875-1:2015)
Dispositifs d'interconnexion et composants passifs à fibres Lichtwellenleiter - Verbindungselemente und passive
optiques - Dispositifs de couplage à fibres optiques ne Bauteile - wellenlängenunabhängige Lichtwellenleiter-
dépendant pas de la longueur d'onde - Partie 1: Verzweiger - Teil 1: Fachgrundspezifikation
Spécification générique (IEC 60875-1:2015)
(IEC 60875-1:2015)
This European Standard was approved by CENELEC on 2015-06-11. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.


European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 60875-1:2015 E

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SIST EN 60875-1:2015
EN 60875-1:2015
European foreword
The text of document 86B/3806/CDV, future edition 6 of IEC 60875-1, prepared by SC 86B "Fibre
optic interconnecting devices and passive components" of IEC/TC 86 "Fibre optics" was submitted to
the IEC-CENELEC parallel vote and approved by CENELEC as EN 60875-1:2015.
The following dates are fixed:
(dop) 2016-03-11
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2016-06-11
• latest date by which the national standards conflicting with
the document have to be withdrawn

This document supersedes EN 60875-1:2010.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60875-1:2015 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60068 NOTE Harmonized in EN 60068 series.
IEC 60974 NOTE Harmonized in EN 60974 series.
IEC 61300-1 NOTE Harmonized as EN 61300-1.
IEC 61300-2 NOTE Harmonized in EN 61300-2 series.
IEC 61300-3 NOTE Harmonized in EN 61300-3 series.
IEC 61753 NOTE Harmonized in EN 61753 series.
IEC 61754 NOTE Harmonized in EN 61754 series.
IEC 62005 NOTE Harmonized in EN 62005 series.
2

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SIST EN 60875-1:2015
EN 60875-1:2015
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is
available here: www.cenelec.eu.

Publication Year Title EN/HD Year
IEC 60027 series Letter symbols to be used in electrical EN 60027 -
technology
IEC 60050 series International electrotechnical vocabulary - -
IEC 60617 series Graphical symbols for diagrams - -
IEC 60695-11-5 -  Fire hazard testing - EN 60695-11-5 -
Part 11-5: Test flames - Needle-flame test
method - Apparatus, confirmatory test
arrangement and guidance
IEC 60825 series Safety of laser products EN 60825 series
IEC 61300 series Fibre optic interconnecting devices and EN 61300 series
passive components - Basic test and
measurement procedures
IEC/TR 61930 -  Fibre optic graphical symbology - -
ISO 129-1 -  Technical drawings - Indication of - -
dimensions and tolerances -
Part 1: General principles
ISO 286-1 -  Geometrical product specifications (GPS) - EN ISO 286-1 -
ISO code system for tolerances on linear
sizes -
Part 1: Basis of tolerances, deviations and
fits
ISO 1101 -  Geometrical product specifications (GPS) - EN ISO 1101 -
Geometrical tolerancing - Tolerances of
form, orientation, location and run-out
ISO 8601 -  Data elements and interchange formats - - -
Information interchange - Representation
of dates and times

3

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SIST EN 60875-1:2015

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SIST EN 60875-1:2015




IEC 60875-1

®


Edition 6.0 2015-05




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Fibre optic interconnecting devices and passive components – Non-wavelength-

selective fibre optic branching devices –

Part 1: Generic specification




Dispositifs d'interconnexion et composants passifs à fibres optiques –

Dispositifs de couplage à fibres optiques ne dépendant pas de la longueur


d'onde –

Partie 1: Spécification générique












INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 33.180.20 ISBN 978-2-8322-2663-6



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 60875-1:2015
– 2 – IEC 60875-1:2015 © IEC 2015
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions. 7
3.1 Basic terms and definitions . 7
3.2 Component definitions . 8
3.3 Performance parameter definitions . 8
4 Requirement . 10
4.1 Classification . 10
4.1.1 General . 10
4.1.2 Types . 10
4.1.3 Style . 10
4.1.4 Variant . 11
4.1.5 Normative reference extensions . 12
4.2 Documentation . 12
4.2.1 Symbols . 12
4.2.2 Specification system . 12
4.2.3 Drawings . 14
4.2.4 Measurements . 14
4.2.5 Test data sheets . 15
4.2.6 Instructions for use . 15
4.3 Standardization system . 15
4.3.1 Interface standards . 15
4.3.2 Performance standards . 16
4.3.3 Reliability standards . 16
4.3.4 Interlinking . 17
4.4 Design and construction . 18
4.4.1 Materials . 18
4.4.2 Workmanship . 18
4.5 Quality . 18
4.6 Performance requirements . 18
4.7 Identification and marking . 19
4.7.1 General . 19
4.7.2 Variant identification number . 19
4.7.3 Component marking . 19
4.7.4 Package marking . 19
4.8 Safety . 20
Annex A (informative) Examples of technology of fibre optic branching devices . 21
Annex B (informative) Examples of fabrication technology of PLC chips . 22
Bibliography . 24

Figure 1 – Non-wavelength-selective branching device . 11
Figure 2 – Non-wavelength-selective branching device . 11
Figure 3 – Non-wavelength-selective branching device . 11
Figure 4 – Non-wavelength-selective branching device . 11

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SIST EN 60875-1:2015
IEC 60875-1:2015 © IEC 2015 – 3 –
Figure 5 – Standards . 17
Figure A.1 – FBT-type optical branching device technology . 21
Figure A.2 – PLC-type optical branching device technology . 21
Figure B.1 – Fabrication by FHD method . 22
Figure B.2 – Fabrication by CVD method . 23
Figure B.3 – Fabrication by ion-exchange method . 23

Table 1 – Three-level IEC specification structure . 13
Table 2 – Standards interlink matrix . 18
Table 3 – Quality assurance options . 18

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SIST EN 60875-1:2015
– 4 – IEC 60875-1:2015 © IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE
COMPONENTS – NON-WAVELENGTH-SELECTIVE
FIBRE OPTIC BRANCHING DEVICES –

Part 1: Generic specification

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 of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60875-1 has been prepared by subcommittee SC86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
This sixth edition cancels and replaces the fifth edition published in 2010 and constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) removal of terms and definitions for splitter, coupler, symmetric non-wavelength-selective
branching device, asymmetric non-wavelength-selective branching device;
b) addition of terms and definitions for bidirectional non-wavelength-selective branching
device and non-bidirectional non-wavelength-selective branching device
c) removal of assessment level.

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SIST EN 60875-1:2015
IEC 60875-1:2015 © IEC 2015 – 5 –
The text of this standard is based on the following documents:
CDV Report on voting
86B/3806/CDV 86B/3872/RVC

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 60875 series, published under the general title Fibre optic
interconnecting devices and passive components – Non-wavelength-selective fibre optic
branching devices, 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 website 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.

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.

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SIST EN 60875-1:2015
– 6 – IEC 60875-1:2015 © IEC 2015
FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE
COMPONENTS – NON-WAVELENGTH-SELECTIVE
FIBRE OPTIC BRANCHING DEVICES –

Part 1: Generic specification



1 Scope
This part of IEC 60875 applies to non-wavelength-selective fibre optic branching devices, all
exhibiting the following features:
– they are passive, in that they contain no optoelectronic or other transducing elements;
– they have three or more ports for the entry and/or exit of optical power, and share optical
power among these ports in a predetermined fashion;
– the ports are optical fibres, or optical fibre connectors.
This standard establishes uniform requirements for the optical, mechanical and environmental
properties.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
IEC 60027 (all parts), Letter symbols to be used in electrical technology
IEC 60050 (all parts), International Electrotechnical Vocabulary (available at
http://www.electropedia.org/)
IEC 60617 (all parts), Graphical symbols for diagrams (available at http://std.iec.ch/iec60617)
IEC 60695-11-5, Fire hazard testing – Part 11-5: Test flames – Needle-flame test method –
Apparatus, confirmatory test arrangement and guidance
IEC 60825 (all parts), Safety of laser products
IEC 61300 (all parts), Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures
IEC TR 61930, Fibre optic graphical symbology
ISO 129-1, Technical drawings – Indication of dimensions and tolerances – Part 1: General
principles
ISO 286-1, Geometrical product specifications (GPS) – ISO code system for tolerances on
linear sizes – Part 1: Basis of tolerances, deviations and fits
ISO 1101, Geometrical product specifications (GPS) – Geometrical tolerancing – Tolerances of
form, orientation, location and run-out

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SIST EN 60875-1:2015
IEC 60875-1:2015 © IEC 2015 – 7 –
ISO 8601, Data elements and interchange formats – Information interchange – Representation
of dates and times
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-731, as well
as the following, apply.
3.1 Basic terms and definitions
3.1.1
port
optical fibre or optical connector attached to a passive component for the entry (input port)
and/or exit (output port) of the optical power
3.1.2
optical pigtail
short length of jumper or cable forming an optical port for an optic component
3.1.3
transfer matrix
optical properties of a non-wavelength-selective optic branching device can be defined in terms
of an n × n matrix of coefficients, n being the number of ports, with the coefficients representing
the fractional optical power transferred between designated ports
Note 1 to entry: In general, the transfer matrix T is as follows:
t t ⋅ ⋅ ⋅ t 
11 12 1n
 
t
21
 
⋅
 
T=
⋅ t 
ij
 
⋅
 
t t
 n1 nn
 
where
t is the ratio of the optical power P transferred out of port j with respect to input power P into port i, that is:
i
ij ij
t = P /P
i
ij ij
The transfer matrix is used to classify the different types of non-wavelength-selective branching devices which are
specified in this generic specification.
Note 2 to entry: In a non-wavelength-selective branching device, the coefficients t may be a function of the input
ij
wavelength, input polarization or modal power distribution. The values of these parameters are provided in the
detail specification, when necessary.
Note 3 to entry: Single-mode, non-wavelength-selective branching devices may operate in a coherent fashion with
respect to multiple inputs. Consequently, the transfer coefficients may be affected by the relative phase and
intensity of simultaneous coherent optical power inputs at two or more ports.
3.1.4
transfer coefficient
element t of the transfer matrix
ij
3.1.5
conducting port pair
two ports i and j between which t is nominally greater than zero
ij

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SIST EN 60875-1:2015
– 8 – IEC 60875-1:2015 © IEC 2015
3.1.6
isolated port pair
two ports i and j between which t is nominally zero, and a is nominally infinite
ij ij
3.2 Component definitions
3.2.1
non-wavelength-selective branching device
(optical) coupler
(optical) splitter
bidirectional passive component possessing three or more ports which operates non-selectively
over a specified range of wavelengths, divides or combines optical power coming into one or
more input port(s) among its one or more output port(s) in a predetermined fashion, without
any amplification, switching, or other active modulation
3.2.2
bidirectional non-wavelength-selective branching device
device whose transfer matrix element of t is equal to t for all i and j
ij ji
3.2.3
non bidirectional non-wavelength-selective branching device
device which at least one transfer matrix element of t is not equal to t
ij ji
3.2.4
balanced coupler
non-wavelength-selective branching device which is designed and intended to produce that
each output port power from the same input port is equal
3.2.5
unbalanced coupler
non-wavelength-selective branching device which is designed and intended to produce that at
least one output port power from the same input port is not equal
3.2.6
tap-coupler
unbalanced coupler, typically the coupling ratio is from 1 % to 20 %
3.3 Performance parameter definitions
3.3.1
insertion loss
reduction in optical power between an input and output port of a passive component expressed
in decibels and defined as
a = –10 log (P /P )
1 0
10
where
P is the optical power launched into the input port;
0

P is the optical power received from the output port.
1
3.3.2
return loss
fraction of input power that is returned from a port of a passive component expressed in
decibelsand defined as
RL = –10 log (P /P )
r 0
10

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SIST EN 60875-1:2015
IEC 60875-1:2015 © IEC 2015 – 9 –
where
P is the optical power launched into a port;
0
P is the optical power received back from the same port.
r
3.3.3
directivity
optical attenuation expressed in decibels between ports which have conducting connections at
any state within isolated port pairs
Note 1 to entry: It is a positive value expressed in dB. Generally, directivity for a passive device is defined as the
minimum value of directivities of all ports.
Note 2 to entry: Directivity is the optical loss between ports which has no conducting connections within all
operating wavelength ranges.
Note 3 to entry: Directivity is defined for port pairs which are expected to be isolated but not expressly intended to
be isolated. That means it is expected to isolate leak light and/or stray light.
3.3.4
excess loss
total power lost in a non-wavelength-selective branching device when an optical signal is
launched into port i, defined as
EL =−10 log10 t
i ∑ ij
j
where the summation is performed only over those values j for which i and j are conducting
ports
Note 1 to entry: For a non-wavelength-selective branching device with n input ports, there is an array of n values
of excess loss, one for each input port i.
3.3.5
uniformity
difference between the maximum and minimum attenuation measured for all output ports for
one input port
Note 1 to entry: For each input port, it is the maximum value over the operating wavelength range or ranges. The
uniformity for a device with more than one input port is defined as the maximum value of uniformities of all input
ports.
Note 2 to entry: Uniformity is expressed as the difference of maximum and minimum value of each insertion loss
from a common input port. It is expressed in decibels.
Note 3 to entry: Generally, uniformity for a passive device is defined as maximum value of uniformities of all ports.
3.3.6
coupling ratio
splitting ratio
for a given input port i, the ratio of light at a given output port k to the total light from all output
ports and defined as
CR = t t
ik ik∑ ij
j
where j represents the operational output ports.
3.3.7
operating wavelength
nominal wavelength λ, at which a passive component is designed to operate with the specified
performance

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SIST EN 60875-1:2015
– 10 – IEC 60875-1:2015 © IEC 2015
3.3.8
operating wavelength range
specified range of wavelengths from λ to λ about a nominal operating wavelength λ ,
i min i max i
within which a passive component is designed to operate with the specified performance
Note 1 to entry: For a non-wavelength-selective branching device with more than one operating wavelength, the
corresponding wavelength ranges are not necessarily equal.
3.3.9
polarization dependent loss
PDL
maximum variation of insertion loss due to a variation of the state of polarization (SOP) over all
the SOPs
Note 1 to entry: This note applies
...