SIST EN 62074-1:2014

SLOVENSKI STANDARD
SIST EN 62074-1:2014
01-julij-2014
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SIST EN 62074-1:2010
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Fibre optic interconnecting devices and passive components - Fibre optic WDM devices -
Part 1: Generic specification
Ta slovenski standard je istoveten z: EN 62074-1:2014
ICS:
33.180.20 3RYH]RYDOQHQDSUDYH]D Fibre optic interconnecting
RSWLþQDYODNQD devices
SIST EN 62074-1:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 62074-1:2014

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SIST EN 62074-1:2014

EUROPEAN STANDARD
EN 62074-1

NORME EUROPÉENNE
April 2014
EUROPÄISCHE NORM

ICS 33.180.01; 33.180.20 Supersedes EN 62074-1:2009


English version


Fibre optic interconnecting devices and passive components -
Fibre optic WDM devices -
Part 1: Generic specification
(IEC 62074-1:2014)


Dispositifs d'interconnexion et dispositifs Lichtwellenleiter -
passifs à fibres optiques - Verbindungselemente und passive
Dispositifs WDM à fibres optiques - Bauteile -
Partie 1: Spécification générique Lichtwellenleiter-WDM-Bauteile -
(CEI 62074-1:2014) Teil 1: Fachgrundspezifikation
(IEC 62074-1:2014)





This European Standard was approved by CENELEC on 2014-03-13. 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.

CENELEC
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


© 2014 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62074-1:2014 E

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SIST EN 62074-1:2014
EN 62074-1:2014 - 2 -
Foreword
The text of document 86B/3700/FDIS, future edition 2 of IEC 62074-1, 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 62074-1:2014.
The following dates are fixed:
– latest date by which the document has to be implemented at (dop) 2014-12-13
national level by publication of an identical national
standard or by endorsement
– latest date by which the national standards conflicting with (dow) 2017-03-13
the document have to be withdrawn

This document supersedes EN 62074-1:2009.
EN 62074-1:2014 includes the following significant technical changes with respect to
EN 62074-1:2009:
– substantial updating to the definitions;
– the addition of informative Annexes C to G, giving examples of technical information concerning
WDM devices.
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 62074-1:2014 was approved by CENELEC as a European
Standard without any modification.

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SIST EN 62074-1:2014
- 3 - EN 62074-1:2014
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  When an international publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.

Publication Year Title EN/HD Year

IEC 60027 series Letter symbols to be used in electrical EN 60027 series
technology
IEC 60050-731 - International Electrotechnical Vocabulary - -
(IEV)
Chapter 731: Optical fibre communication
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 60825-1 - Safety of laser products EN 60825-1 -
Part 1: Equipment classification and
requirements
IEC/TR 61931 - Fibre optic - Terminology - -
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

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SIST EN 62074-1:2014

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SIST EN 62074-1:2014




IEC 62074-1

®


Edition 2.0 2014-02




INTERNATIONAL



STANDARD








colour

inside










Fibre optic interconnecting devices and passive components – Fibre optic

WDM devices –

Part 1: Generic specification



























INTERNATIONAL

ELECTROTECHNICAL

COMMISSION

PRICE CODE
XA




ICS 33.180.01, 33.180.20 ISBN 978-2-8322-1379-7



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

® Registered trademark of the International Electrotechnical Commission

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SIST EN 62074-1:2014
– 2 – 62074-1 © IEC:2014(E)
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
3.1 Basic term definitions . 8
3.2 Component definitions . 9
3.3 Performance parameter definitions . 10
4 Requirements . 25
4.1 Classification . 25
4.1.1 General . 25
4.1.2 Type . 25
4.1.3 Style . 25
4.1.4 Variant . 26
4.1.5 Assessment level . 26
4.1.6 Normative reference extension . 27
4.2 Documentation . 27
4.2.1 Symbols . 27
4.2.2 Specification system . 27
4.2.3 Drawings . 28
4.2.4 Measurements . 29
4.2.5 Test data sheets . 29
4.2.6 Instructions for use . 29
4.3 Standardization system . 29
4.3.1 Performance standards . 29
4.3.2 Reliability standard . 30
4.3.3 Interlinking . 30
4.4 Design and construction . 31
4.4.1 Materials . 31
4.4.2 Workmanship . 31
4.5 Performance requirements . 31
4.6 Identification and marking . 31
4.6.1 General . 31
4.6.2 Variant identification number . 31
4.6.3 Component marking . 32
4.6.4 Package marking . 32
4.7 Safety . 32
Annex A (informative) Transfer matrix . 34
A.1 General . 34
A.2 Transfer matrix . 34
A.3 Transfer matrix coefficient . 35
A.4 Logarithmic transfer matrix . 35
Annex B (informative) Specific performances of WDM devices for bidirectional
transmission system (example) . 37
B.1 Generic . 37
B.2 Definition of near-end isolation and near-end crosstalk . 38
Annex C (informative) Transfer matrix as applications of WDM devices (example) . 40

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SIST EN 62074-1:2014
62074-1 © IEC:2014(E) – 3 –
C.1 Generic . 40
C.2 Wavelength multiplexer . 40
C.3 Wavelength demultiplexer . 41
C.4 Wavelength multiplexer/demultiplexer . 42
C.5 Wavelength router. 43
C.6 Wavelength channel add/drop . 44
Annex D (informative) Example of technology of thin film filter WDM devices . 46
D.1 General . 46
D.2 Thin film filter technology . 46
D.3 Typical characteristics of thin film filter . 47
Annex E (informative) Example of technology of fibre fused WDM devices . 48
E.1 General . 48
E.2 Typical characteristics of fibre fused WDM devices . 49
Annex F (informative) Example of arrayed waveguide grating (AWGs) technology . 50
F.1 General . 50
F.2 Typical characteristics of AWG . 50
Annex G (informative) Example of FBG filter technology . 52
G.1 General . 52
G.2 Typical characteristics of FBG filter . 53
Bibliography . 54

Figure 1 – Example of a six-port device, with two input and four output ports . 8
Figure 2 – Illustration of channel wavelength range . 11
Figure 3 – Illustration of insertion loss . 12
Figure 4 – Illustration of ripple . 12
Figure 5 – Illustration of channel insertion loss variation . 13
Figure 6 – Illustration of isolation wavelength. 14
Figure 7 – Illustration of isolation wavelength range . 15
Figure 8 – Illustration of adjacent channel isolation . 16
Figure 9 – Illustration of non-adjacent channel isolation . 17
Figure 10 – Illustration of maximum adjacent channel crosstalk . 18
Figure 11 – Illustration of maximum non-adjacent channel crosstalk . 19
Figure 12 – Illustration of channel extinction ratio . 21
Figure 13 – Illustration of free spectral range . 22
Figure 14 – Illustration of polarization dependent centre wavelength (PDCW) . 23
Figure 15 – Illustration of X dB bandwidth . 25
Figure 16 – Wavelength-selective branching device . 26
Figure 17 – Wavelength-selective branching device . 26
Figure 18 – Wavelength-selective branching device . 26
Figure 19 – Wavelength-selective branching device . 26
Figure A.1 – Example of a six-port device, with two input and four output ports . 34
Figure A.2 – Illustration of transfer matrix coefficient . 35
Figure B.1 – Uni-directional and bi-directional transmission system application of a
1 x 2 DM device . 37
Figure B.2 – Illustration of a four-wavelength bidirectional system . 39

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SIST EN 62074-1:2014
– 4 – 62074-1 © IEC:2014(E)
Figure C.1 – Example of a wavelength multiplexer . 40
Figure C.2 – Example of a wavelength demultiplexer . 41
Figure C.3 – Example of a wavelength multiplexer/demultiplexer . 42
Figure C.4 – Example of a wavelength router . 43
Figure C.5 – Example of wavelength channel add/drop . 44
Figure D.1 – Schematic configuration of a thin film filter WDM device . 46
Figure D.2 – Structure of multilayer thin film . 47
Figure D.3 – Typical characteristics of 1 510 nm and C-band WDM device using thin
film filter technology . 47
Figure E.1 – Structure of a fused bi-conical tapered 2x2 coupler . 48
Figure E.2 – Typical scheme for a fused coupler . 49
Figure E.3 – Typical characteristics of a fibre fused WDM device. 49
Figure F.1 – Basic configuration of AWG . 50
Figure F.2 – Example of AWG characteristics . 51
Figure G.1 – Usage of fibre Bragg grating filter . 52
Figure G.2 – Function and mechanism of fibre Bragg grating . 52
Figure G.3 – Example of FBG filter characteristics . 53

Table 1 – Three-level IEC specification structure . 27
Table 2 – Standards interlink matrix . 31

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SIST EN 62074-1:2014
62074-1 © IEC:2014(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

FIBRE OPTIC INTERCONNECTING DEVICES AND
PASSIVE COMPONENTS – FIBRE OPTIC WDM 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 62074-1 has been prepared by subcommittee SC 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
This second edition cancels and replaces the first edition, published in 2009, and constitutes
a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) substantial updating to the definitions;
b) the addition of informative Annexes C to G, giving examples of technical information
concerning WDM devices.

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SIST EN 62074-1:2014
– 6 – 62074-1 © IEC:2014(E)
The text of this standard is based on the following documents:
FDIS Report on voting
86B/3700/FDIS 86B/3722/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 62074 series, published under the general title Fibre optic
interconnecting devices and passive components – Fibre optic wdm 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 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.

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SIST EN 62074-1:2014
62074-1 © IEC:2014(E) – 7 –
FIBRE OPTIC INTERCONNECTING DEVICES AND
PASSIVE COMPONENTS – FIBRE OPTIC WDM DEVICES –

Part 1: Generic specification



1 Scope
This part of IEC 62074 applies to fibre optic wavelength division multiplexing (WDM) devices.
These have all of the following general features:
• they are passive, in that they contain no optoelectronic or other transducing elements;
however they may use temperature control only to stabilize the device characteristics;
they exclude any optical switching functions;
• 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 depending on the wavelength;
• the ports are optical fibres, or optical fibre connectors.
This standard establishes uniform requirements for the following:
• 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 60050-731, International Electrotechnical Vocabulary – Chapter 731: Optical fibre
communication
IEC 60695-11-5, Fire hazard testing – Part 11-5: Test flames – Needle-flame test method –
Apparatus, confirmatory test arrangement and guidance
IEC 60825-1, Safety of laser products – Part 1: Equipment classification and requirements
IEC 61931, Fibre optics – Terminology
ISO 129-1, Technical drawings – Indication of dimensions and tolerances – Part 1: General
principles
ISO 286-1, Geometrical product specifications (GPS) – ISO coding system for tolerances of
linear sizes – Part 1: Bases of tolerances and fits
ISO 1101, Geometrical product specifications (GPS) – Geometrical tolerancing – Tolerances
of form, orientation, location and run-out
ISO 8601, Data elements and interchange formats – Information interchange –
Representation of dates and times

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SIST EN 62074-1:2014
– 8 – 62074-1 © IEC:2014(E)
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 term definitions
3.1.1
port
optical fibre or optical fibre connector attached to a passive device for the entry and/or exit of
the optical power
3.1.2
transfer matrix
optical properties of a fibre optic wavelength-selective branching device can be defined in
terms of an n x n matrix of coefficients, where n is the number of ports, and the coefficients
represent the fractional optical power transferred between designated ports
Note 1 to entry: A detailed explanation of the transfer matrix is shown in Annex A. The ports are numbered
sequentially, so that the transfer matrix is developed to show all ports and all possible combinations. The port
numbering is arbitrary.
Note 2 to entry: Figure 1 below shows an example of a six-port device, with two input ports and four output ports.
This WDM device can operate as four input ports and two output ports for their reciprocity characteristics. Also, it
shall be noted that a combination of input and output port number can be selected, for example, 1 input port and 5
output ports, 3 input ports and 3 output ports and so on, especially for bi-directional transmission system
application. Refer to Annex B.

Inputs Outputs
3
1
4
5
2
6
IEC  0069/14

Figure 1 – Example of a six-port device, with two input and four output ports
Note 3 to entry: If there are four operating wavelengths, then the resulting transfer matrix becomes a 6 × 6 × 4
matrix: Optical attenuation at λ from port 1 to port 6 would use a . Return loss of port 2 at λ would use a .
1 161 4 224
Optical attenuation from port 5 to port 2 at λ would use a .
3 523
3.1.3
transfer matrix coefficient
element t of the transfer matrix
ij
Note 1 to entry: t is the number of more than or equal to zero, and less than or equal to one.
ij
Note 2 to entry: A detailed explanation is shown in Annex A.
3.1.4
logarithmic transfer matrix
transfer matrix whose matrix element a is a logarithmic value of transfer matrix element t . a
ij ij ij
is a number of positive and expressed in dB
Note 1 to entry: A detailed explanation is shown in Annex A.

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SIST EN 62074-1:2014
62074-1 © IEC:2014(E) – 9 –
3.1.5
conducting port pair
port pair consisting of i
...