EN 62077:2016

SLOVENSKI STANDARD
01-maj-2016
1DGRPHãþD
SIST EN 62077:2010
2SWLþQLVSRMQLHOHPHQWLLQSDVLYQHNRPSRQHQWH2SWLþQLFLUNXODWRUML5RGRYQD
VSHFLILNDFLMD,(&
Fibre optic interconnecting devices and passive components - Fibre optic circulators -
Generic specification (IEC 62077:2015)
Ta slovenski standard je istoveten z: EN 62077:2016
ICS:
33.180.20 3RYH]RYDOQHQDSUDYH]D Fibre optic interconnecting
RSWLþQDYODNQD devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62077
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2016
ICS 33.180.20 Supersedes EN 62077:2010
English Version
Fibre optic interconnecting devices and passive components -
Fibre optic circulators - Generic specification
(IEC 62077:2015)
Dispositifs d'interconnexion et composants passifs à fibres Lichtwellenleiter - Verbindungselemente und passive
optiques - Circulateurs fibroniques - Spécification générique Bauteile - Lichtwellenleiterzirkulatoren -
(IEC 62077:2015) Fachgrundspezifikation
(IEC 62077:2015)
This European Standard was approved by CENELEC on 2015-12-09. 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
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62077:2016 E
European foreword
The text of document 86B/3862/CDV, future edition 3 of IEC 62077, 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 62077:2016.
The following dates are fixed:
(dop) 2016-09-09
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2016-12-09
• latest date by which the national standards conflicting with
the document have to be withdrawn

This document supersedes EN 62077:2010.
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 62077:2015 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 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 61978-1 NOTE Harmonized as EN 61978-1.
IEC 62005 NOTE Harmonized in EN 62005 series.
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 series
technology
IEC 60050-731 -  International Electrotechnical - -
Vocabulary -
Chapter 731: Optical fibre
communication
IEC 60617 -  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 EN ISO 286-1 -
(GPS) - ISO code system for tolerances
on linear sizes -
Part 1: Basis of tolerances, deviations
and fits
ISO 1101 -  Geometrical product specifications EN ISO 1101 -
(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

IEC 62077 ®
Edition 3.0 2015-11
INTERNATIONAL
STANDARD
Fibre optic interconnecting devices and passive components – Fibre optic

circulators – Generic specification

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.180.20 ISBN 978-2-8322-2988-0

– 2 – IEC 62077:2015  IEC 2015
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
3.1 Basic terms . 7
3.2 Component terms. 8
3.3 Performance parameters . 8
4 Requirements . 10
4.1 Classification . 10
4.1.1 General . 10
4.1.2 Type . 11
4.1.3 Style . 11
4.1.4 Variant . 12
4.1.5 Normative reference extensions. 12
4.2 Documentation . 13
4.2.1 Symbols . 13
4.2.2 Specification system . 13
4.2.3 Drawings . 15
4.2.4 Tests and measurements . 15
4.2.5 Test reports . 16
4.2.6 Instructions for use . 16
4.3 Standardization system . 16
4.3.1 Interface standards . 16
4.3.2 Performance standards . 17
4.3.3 Reliability standards . 17
4.3.4 Interlinking . 18
4.4 Design and construction . 19
4.4.1 Materials . 19
4.4.2 Workmanship . 19
4.5 Performance . 19
4.6 Identification and marking . 19
4.6.1 General . 19
4.6.2 Variant identification number . 19
4.6.3 Component marking . 20
4.6.4 Package marking . 20
4.7 Packaging . 20
4.8 Storage conditions . 20
4.9 Safety . 21
Annex A (informative) Example of technology of bulk circulator based on magneto-
optic effect . 22
Annex B (informative) Example of application of a circulator . 23
Bibliography . 24

Figure 1 – Completely circulated type configuration . 8
Figure 2 – Incompletely circulated type configuration . 8

IEC 62077:2015  IEC 2015 – 3 –
Figure 3 – Insertion loss . 9
Figure 4 – Isolation . 9
Figure 5 – Optical circulator style configurations . 12
Figure 6 – Standards currently under preparation . 18
Figure 7 – Example of a variant identification number . 20
Figure A.1 – Example of a circulator . 22
Figure B.1 – Example of application of a circulator . 23

Table 1 – Example of a typical circulator set classification . 11
Table 2 – The IEC specification structure . 14
Table 3 – Standards interlink matrix . 19

– 4 – IEC 62077:2015  IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
FIBRE OPTIC CIRCULATORS – 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 62077 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
This third edition cancels and replaces the second edition published in 2010. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) harmonization of some terms and definitions with other generic specifications,
b) deletion of assessment level.

IEC 62077:2015  IEC 2015 – 5 –
The text of this standard is based on the following documents:
CDV Report on voting
86B/3862/CDV 86B/3918/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.
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.
A bilingual version of this publication may be issued at a later date.

– 6 – IEC 62077:2015  IEC 2015
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
FIBRE OPTIC CIRCULATORS – GENERIC SPECIFICATION

1 Scope
This International Standard applies to circulators used in the field of fibre optics bearing all of
the following features:
– they are non-reciprocal optical devices, in which each port is either an optical fibre or fibre
optic connector;
– they are passive devices in accordance with the categorization and definition provided in
IEC TS 62538;
– they have three or more ports for directionally transmitting optical power.
An example of optical circulator technology is described in Annex A.
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 (available at http://www.electropedia.org)
IEC 60617, 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
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
ISO 8601, Data elements and interchange formats – Information interchange –
Representation of dates and times

IEC 62077:2015  IEC 2015 – 7 –
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-731and the
following apply.
3.1 Basic terms
3.1.1
port
optical fibre or optical fibre connector attached to a passive component for the entry and/or
exit of the optical power
3.1.2
transfer matrix
n × 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: In general, the transfer matrix T is:
t t . t
 
11 12 1n
 
t
T = (1)
 
t
ij
 
t t t
 
 n1 n2 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:
ij ij i
P
ij
t = (2)
ij
P
i
3.1.3
transfer coefficient
of the transfer matrix
element t
ij
3.1.4
logarithmic transfer matrix
n × n matrix of logarithmic transfer coefficients of a where n is the number of ports
ij
Note 1 to entry: In general, the logarithmic transfer matrix A is:
a a . a 
11 12 1n
 
a
 
A = (3)
 
a
ij
 
a a a
 n1 n2 nn 
where a is the optical power reduction, in decibels, out of port j with unit power into port i, that is:
ij
a = −10log t (4)
ij 10 ij
where t is the transfer matrix coefficient.
ij
3.1.5
conducting port pair
two ports i and j between which t is nominally greater than zero
ij
– 8 – IEC 62077:2015  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 terms
3.2.1
fibre optic circulator
passive component possessing three or more ports which input and output are cyclic
Note 1 to entry: In the case of 3 ports circulator with port 1, port 2 and port 3, supposing optical power is
transmitted from port 1 to port 2, optical power from port 2 is transmitted to port 3.
3.2.2
completely circulated type
type of circulator where all ports can function as both input and output.
Note 1 to entry: In the case of a 3 port circulator with port 1, port 2 and port 3, where optical power is transmitted
from port 1 to port 2, optical power from port 2 is also transmitted to port 3 and optical power from port 3 is also
transmitted to port 1 (see Figure 1).
Circulator
port 1 port 3
port 2
IEC
Figure 1 – Completely circulated type configuration
3.2.3
incompletely circulated type
type of circulator where a port is either an input or an output
Note 1 to entry: In the case of 3 ports circulator with port 1, port 2 and port 3, supposing optical power is
transmitted from port 1 to port 2, optical power from port 2 is transmitted to port 3 and optical power from port 3 is
not transmitted to port 1 (see Figure 2).
Circulator
port 1 port 3
port 2
IEC
Figure 2 – Incompletely circulated type configuration
3.3 Performance parameters
3.3.1
insertion loss
element a of the logarithmic transfer matrix of an input port i and output port j to which optical
ij
power is transmitted
Note 1 to entry: The insertion loss is the reduction in optical power between an input and output port of a passive
component (see Figure 3), expressed in decibels and defined as follows:
P
 
j
 
(5)
a = −10log
ij 10
 
P
in
 
IEC 62077:2015  IEC 2015 – 9 –
where
P is the optical power launched into the input port;
in
P is the optical power received from the output port
j
Supposing optical power is
Circulator
transmitted from port i to port j

input port i
output port j
IEC
Figure 3 – Insertion loss
3.3.2
isolation
element a of the logarithmic transfer matrix of an output port j and input port i to which optical
ji
power is transmitted in the direction opposite to the insertion loss
Note 1 to entry: The isolation is the reduction in optical power between an input and output port of a passive
component, expressed in decibels and defined as follows:
 
P
i
 
a = −10log (6)
ji 10
 
P
j
 
where
P is the optical power received from the input port;
i
P is the optical power launched into the output port
j
Supposing optical power is
Circulator
transmitted from port i to port j

input port i
output port j
IEC
Figure 4 – Isolation
3.3.3
directivity
element a of the logarithmic transfer matrix port i and port k, which are not port pair for
ik
insertion loss (IL), return loss (RL) or isolation (Iso)
Note 1 to entry: For example, the transmission matrix for a 4-port incompletely circulated type optical circulator,
the symbol Dir indicates directivity as in Equation (7).
a a a a
   RL IL Dir Dir
11 12 13 14
 
 
a a a a
Iso RL IL Dir
21 22 23 24
   
(7)
=
   
a a a a
Dir Iso RL IL
31 32 33 34
   
a a a a Dir Dir Iso RL
 41 42 43 44   
– 10 – IEC 62077:2015  IEC 2015
where
Dir is the directivity;
IL is the insertion loss;
Iso is the isolation;
RL is the return loss.
3.3.4
operating wavelength
nominal wavelength, λ, at which a passive component is designed to operate with the
specified performance
3.3.5
operating wavelength range
specified range of wavelengths from λ to λ close to a nominal operating wavelength
i min i max
λ , within which a passive component is designed to operate with the specified performance
i
3.3.6
return loss
element a in Equation (8) of the logarithmic transfer matrix
ii
Note 1 to entry: It is the fraction of the input power that is returned from the input port of a passive compo
...