IEC 61291-5-2:2017

IEC 61291-5-2 ®
Edition 2.0 2017-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical amplifiers –
Part 5-2: Qualification specifications – Reliability qualification for optical fibre
amplifiers
Amplificateurs optiques –
Partie 5-2: Spécifications de qualification – Qualification de fiabilité pour
amplificateurs à fibres optiques

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IEC 61291-5-2 ®
Edition 2.0 2017-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical amplifiers –
Part 5-2: Qualification specifications – Reliability qualification for optical fibre

amplifiers
Amplificateurs optiques –
Partie 5-2: Spécifications de qualification – Qualification de fiabilité pour

amplificateurs à fibres optiques

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.30 ISBN 978-2-8322-9361-4

– 2 – IEC 61291-5-2:2017 © IEC 2017
CONTENTS
CONTENTS . 2
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviated terms . 6
3.1 Terms and definitions . 6
3.2 Abbreviated terms . 6
4 Reliability requirements . 7
4.1 Tests . 7
4.1.1 General . 7
4.1.2 Reliability qualification of components . 7
4.1.3 Reliability qualification of the OFA assembly process . 8
4.1.4 Reliability qualification of the OFA device or sub-system . 8
4.1.5 Structural similarity . 10
Annex A (normative) Procedures for reliability testing of OFA components . 11
A.1 General . 11
A.2 Tests required for passive optical components . 11
A.3 Tests required for the doped fibre . 11
Annex B (informative) Reliability calculations . 12
B.1 Reliability calculation . 12
B.2 Guidance on failure rate calculations . 13
Bibliography . 14

Table 1 – Minimum test list for passive optical components, pump laser modules,
monitor diode modules and optical connectors . 7
Table 2 – Minimum test list for doped fibre . 8
Table 3 – Tests required for splices . 8
Table 4 – Minimum list for tests required on OFA devices and sub-systems . 9
Table A.1 – Tests required for the doped fibre . 11
Table B.1 – Failure rate of components . 13

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL AMPLIFIERS –
Part 5-2: Qualification specifications – Reliability qualification
for optical fibre amplifiers
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
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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 61291-5-2 has been prepared by subcommittee 86C: Fibre optic
systems and active devices, of IEC technical committee 86: Fibre optics.
This second edition cancels and replaces the first edition published in 2002. It constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) removal of the contents on the relating quality management system from scope, terms and
definitions, and the reliability requirements;
b) moving fit-rate calculation to Annex B (informative);
c) change of requirements for shock test;
d) amendment of abbreviations related to changes a) and b).

– 4 – IEC 61291-5-2:2017 © IEC 2017
The text of this International Standard is based on the following documents:
CDV Report on voting
86C/1376/CDV 86C/1426/RVC
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 61291 series, published under the general title Optical amplifiers,
can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
OPTICAL AMPLIFIERS –
Part 5-2: Qualification specifications – Reliability qualification
for optical fibre amplifiers
1 Scope
This part of IEC 61291 applies to optical amplifiers (OAs) and optically amplified, elementary
sub-systems for terrestrial applications, using active fibres (optical fibre amplifiers (OFAs))
containing rare-earth dopants, which are commercially available.
The black box approach is used in this document. The black box approach is adopted in order
to give product specifications which are independent of OA implementation details. For
reliability qualification purposes, some information about the internal components is needed;
these internal parts are themselves treated as black boxes. This document gives
requirements for the evaluation of OA reliability by combining the reliability of such internal
black boxes.
The object of this document is to specify the minimum list of reliability qualification tests,
requirements on failure criteria during testing and on reliability predictions, and give the
relevant normative references to establish a standard method for the assessment of the
reliability of OFA devices and sub-systems in order to minimize risks and to promote product
development and reliability qualification.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC 60050-731, International Electrotechnical Vocabulary – Chapter 731: Optical fibre
communication
IEC 60068-2-2:2007, Environmental testing – Part 2-2: Tests – Test B: Dry heat
IEC 60068-2-14, Environmental testing – Part 2-14: Tests – Test N: Change of temperature
IEC 60068-2-21, Environmental testing – Part 2-21: Tests – Test U: Robustness of
terminations and integral mounting devices
IEC 60068-2-27, Environmental testing – Part 2-27: Tests – Test Ea and guidance: Shock
IEC 60068-2-31, Tests – Test Ec: Rough handling shocks, primarily for equipment-type
specimens
IEC 60068-2-78, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat, steady
state
IEC 61291-1, Optical fibre amplifiers – Part 1: Generic specification

– 6 – IEC 61291-5-2:2017 © IEC 2017
IEC 61300-2-4, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-4: Tests – Fibre/cable retention
IEC 62005-9-1, Fibre optic interconnecting devices and passive components – Reliability –
Part 9-1: Qualification of passive optical components
IEC 62005-9-2, Reliability of fibre optic interconnecting devices and passive optical
components – Part 9-2: Reliability qualification for single fibre optic connector sets – Single
mode
TIA 455-11, FOTP-11 Vibration Test Procedure for Fiber Optic Components and Cables
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61291-1,
IEC 60050-731 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1.1
failure
non-compliance to product specification or change in parameters as agreed by the customer
and supplier
3.1.2
OFA manufacturer
OFAM
manufacturer who provides optical fibre amplifier (OFA) devices or subsystems meeting the
requirements of the applicable product specification (PS)
Note 1 to entry PS includes the reliability requirement.
3.2 Abbreviated terms
EDFF erbium doped fluoride fibre
EDSFA erbium doped silica fibre amplifier
EDTF erbium doped tellurite fibre
FIT failure in time
FFS for further study
OA optical amplifier
OFA optical fibre amplifier
OFAM optical amplifier manufacturer
OFAM optical fibre amplifier manufacturer
PDFF praseodymium doped fluoride fibre
PS product specification
RH relative humidity
DFF thulium doped fluoride fibre
UCL upper confidence level
4 Reliability requirements
4.1 Tests
4.1.1 General
An optical fibre amplifier (OFA) device or sub-system is an assembly of various parts and
components of different nature. A main point in the reliability testing of the OFA device or sub-
system is to ensure the reliability of each part and basic manufacturing process used and to
provide a route that may result in an understanding of design margins. For the purpose of this
document, each internal part shall be seen as a black box.
This document is based on the assumption that the reliability of an optical amplifier (OA) can
be evaluated with sufficient confidence from the failure in time (FIT) rates of its internal black
boxes when the assembly process of the constituents has been qualified.
The procedures to qualify the assembly process are described in 4.1.3.
The reliability assurance is confirmed by the test procedure described in 4.1.4 carried out on
the OFA device or sub-system as a whole.
The basic parts usually constituting an OFA are listed below:
• passive optical components;
• opto-electronic components;
• doped fibres or doped fibre modules;
• optical connectors;
• electronics;
• others (to be specified);
• mechanical packaging.
The OFA manufacturer (OFAM) should declare the number and type of the internal black
boxes constituting the OFA and give the failure rates (in FIT) for each of them.
The OFA failure rate should be calculated by suitably combining the FIT rates of its internal
parts, as described in Annex B.
4.1.2 Reliability qualification of components
Table 1 and Table 2 give the minimum list of tests to be performed on the various parts,
where used, constituting the OFA in order to guarantee the claimed reliability level. Normative
references for tests and test conditions are given in Annex A.
Table 1 – Minimum test list for passive optical components, pump laser modules,
monitor diode modules and optical connectors
Component Reference
Pump laser diode IEC 62572-3 (informative)
Photo diode To be defined
Passive optical components IEC 62005-9-1
Optical connectors IEC 62005-9-2
Variable optical attenuators To be defined

– 8 – IEC 61291-5-2:2017 © IEC 2017
Table 2 – Minimum test list for doped fibre
Test
Proof test
Hydrogen aging
Fibre coating strip force (for non-hermetic fibre only)

A set of test conditions suitable to the test lists in Table 1 and Table 2 to assess the reliability
of OFA components (seen as black boxes) is given for reference in Annex A. These test
conditions specify the common practice in the OFA manufacturing industry.
4.1.3 Reliability qualification of the OFA assembly process
Fibre arrangement and assembly of the optical and electrical components are very important
aspects for assessing the reliability of an OFA. In particular, the fibre winding and splice
process is one of the most critical steps in the OFA assembly process.
The splice process shall be qualified according to the relevant fibre and coating material.
Table 3 indicates the tests required on splices.
Table 3 – Tests required for splices
Tests Conditions Reference
+85 °C
High temperature storage IEC 60068-2-2, Tests B
2 000 h
-40 °C /+85 °C
Change of temperature 2 °C/min
IEC 60068-2-14
a
(Thermal cycling) Q = 100 cycles
I = 500 cycles
Damp heat 40 °C 93 % RH 500 h IEC 60068-2-78
1 000 m/s
Shock 6 ms IEC 60068-2-27
6 times/axis
5 Hz to 50 Hz, 15 m/s
50 Hz to 500 Hz, 30 m/s TIA 455-11
Vibrations
3 axis
Duration 15 sweeps
Robustness test 5 N
IEC 60068-2-21
(Pull test) 10 s
a
Q: data for qualification, I: data for information.

The number of samples is to be agreed between customer and supplier according to the level
of confidence and the level of reliability required.
4.1.4 Reliability qualification of the OFA device or sub-system
A reliability qualification procedure related to the complete OFA device or sub-system is
described in Table 4. It gives the minimum list of tests to be performed on OFA devices and
sub-systems in order to assure reliability. Normative references, where tests and test
conditions are specified, are given in Annex A.
The purpose of the testing is to assess the prediction of the failure rate of the complete OFA
performed according to the procedure of 4.1.2.

On the basis of the reliability assurance required for the reliability tests for the OFA internal
black boxes, the sampling level is generally low (for example a few samples for each amplifier
type).
In some specific cases (for example, non-silica glass OFAs), the use of adhesives in the OFA
can be considered as a critical process and shall be qualified separately. Depending on the
possible function of the adhesive (mechanical anchoring, splice protection, index matching,
etc.), the different failure modes shall be addressed and supported by reliability data.
Table 4 – Minimum list for tests required on OFA devices and sub-systems
Test Condition Duration Operating Samples
Temperature storage T /T 72 h - 3
stg,min stg,max
T /T Q = 100 cycles Y
stg,min stg,max
a
Temperature cycling 3
Ramp > 1 ºC/min I = 500 cycles
b
85 ºC to 85 % RH Q = 500 h -
Damp heat 3
I = 1 000 h
5 shocks per -
3 000 m/s 3 ms pulse direction,
Shock
6 directions
c
(≤ 0,225 Kg)
d c
See table below See table below -
5 shocks per -
500 m/s , 11 ms pulse direction,
Shock
c 6 directions
(> 0,225 Kg)
d c
See table below See table below -
Shock: circuit -
d c
pack, blades See table below See table below 3

c
and racks
200 m/s , 20 Hz to -
Mechanical test
2 000 Hz to 20 Hz
Vibration
4 mins/cycle 3
(≤ 1 Kg)
3-axis, 4 cycles per
axis, 2 h/axis
5 Hz to 50 Hz, 15 m/s 0,1 oct/min -
Vibration
50 Hz to 500 Hz, 0,25 oct/min
30 m/s
(> 1 Kg)
3-axis
Vibration: -
5 Hz to 100 Hz to
circuit pack,
5 Hz, 10 m/s
0,25 oct/min 3
blades and
3-axis
racks
e d
Pull 5 N, 10 N and 100 N - ≥ 12
Q = 1 000 h Y
a
Endurance T /P 3
op, max nom
I = 2 000 h
– 10 – IEC 61291-5-2:2017 © IEC 2017
Test Condition Duration Operating Samples
No failures are allowed
Tests may be performed sequentially or in parallel.
If the storage temperature is lower than the specified humidity temperature, another test at T and RH ≥ 85
stg,max
% is done.
If the maximum storage temperature is similar to the maximum operating temperature, the storage test at
T is not required and is replaced by the endurance test. The endurance test is performed at fixed pump
stg,max
current, output power or pump monitor current (nominal values given in the product specification (PS)). To check
any drift of the amplifier, relevant parameters [such as output power, pump parameters (if accessible) etc.] may
be measured during the test.
A reference to the temperature cycle test method is provided in Annex B.
T is the OFA minimum storage temperature;
stg,min
T is the OFA maximum storage temperature;
stg,max
T is the OFA maximum operating temperature;
op,max
P  is the OFA nominal output power.
nom
a
Q: qualification, I: information.
b
Damp heat: the damp heat test at 85 °C/85 % RH has been advocated by some manufacturers, as justified
by observations of conditions within peculiar environments. These test conditions may be used for OFAs to
be deployed in very hard environments. Otherwise, the damp heat test at 40 °C/93 % RH may be used.
c
Either controlled shock test or drop test can be applied.
d
Mechanical test: shock (free drop, IEC 60068-2-27 and IEC 60068-2-31)
Mass Drop height
kg mm
0 ≤ mass < 10 100
10 ≤ mass < 25
e
Pigtail testing – pull test (the first figure in each row below is the outer diameter of the buffered or cabled
fibre to which the specified test conditions do apply)
reinforced fibre: 20 N to 100 N, 3 times,
5 s pulls
Cable
secondary coated fibre: 10 N, 3 times, 5 s
retention IEC 61300-2-4
pulls
(pull)
primary coated fibre: 5 N, 3 times, 5 s
pulls
It is essential that the evaluated OFA devices or sub-systems are entirely representative of
standard production and have passed all the production procedures and/or specified (where
applicable in the DS) burn-in and screening procedures.
Aspects of the test conditions not provided in this document are given in the relevant PS.
4.1.5 Structural similarity
Where a range of optical amplifier modules is produced by an OFAM, there can be some
significant structural similarity between different type codes. A combination of results from
different test programmes, where appropriate, is therefore permitted. Although an
understanding of similarity is necessary, it is also important to provide an assessment of
differences. All assessments should be compared on a test-by-test basis.
Consideration should be given to the fact that minor differences in technology or processing
can have a major impact on reliability, whilst not being apparent during quality assessment.
Evidence should be presented which demonstrates that all results are directly relevant.

Annex A
(normative)
Procedures for reliability testing of OFA components
A.1 General
This normative annex contains test lists and test conditions suitable to assess the reliability of
OFA components (seen as black boxes). These lists reflect the common practice in the OFA
manufacturing industry and are given as a reference, together with the relevant published IEC
documents, for OFA customers.
NOTE IEC references included in Clause A.2 are subject to updating to include new documents as they are
published.
A.2 Tests required for passive optical components
IEC 62005-9-1 describes the tests required for passive optical components used in the OFA
device or sub-system in controlled environment and in outside plant environment.
Refer to IEC 62005-9-2 for definition of the tests required on optical connectors.
A.3 Tests required for the doped fibre
Table A.1 indicates the tests required for the doped fibre.
Table A.1 – Tests required for the doped fibre
Test Condition
Proof test Proof test based on deployment condition
Hydrogen aging See note below
Fibre strip force (for non-hermetic fibre only) Mechanical stripping
Hydrogen aging: Regardless of hydrogen protection, the OFA maker shall be able to demonstrate that the OFA
will meet this requirement in the presence of as much as 10-2 atmosphere of hydrogen over the life of the
device. This should be done by exposing the fibre to accelerating temperatures and pressures. The proper
choice of accelerating temperature and pressure varies by fibre design and method of manufacture. The applied
test method shall be agreed upon between the OFAM and user.
The bending tests on the doped fibre are performed with bending radii similar to those encountered in the
conditions of use; the test conditions shall be specified (bare fibre, fibre tested on a bobbin or mandrel, etc.).
The tests are performed preferentially on the fibre as supplied; if needed, additional tests on the fibre in a sub-
assembly can be performed. The test method on the fibre in a sub-assembly is for further study (FFS).
Temperature and humidity impacts are currently under study by the suppliers of doped fibre.
Here, the doped fibre is intended to be a silica-based fibre such as that used in erbium doped silica fibre
amplifier (EDSFAs). On the other hand, non-silica-based fibres comprising, for example, erbium doped fluoride
fibre (EDFFs), erbium doped tellurite fibre (EDTFs), praseodymium doped fluoride fibre (PDFFs), and thulium
doped fluoride fibre (TDFFs), usually need to be housed in a sealed package to avoid moisture damage.
Therefore, the sealed package is treated as a doped fibre module and qualified separately taking into account
the peculiarity of its mechanical properties.

– 12 – IEC 61291-5-2:2017 © IEC 2017
Annex B
(informative)
Reliability calculations
B.1 Reliability calculation
A reliability prediction regarding the complete OFA device or sub-system is provided by the
OFAM, based on the failure rates [in FIT (failure in time)] of the internal black boxes
composing the OFA.
The failure rates of the internal black boxes shall be given by the OFAM taking into account
the basic values issued from the cumulated component-hours issued from the different
components included in the amplifier. The calculations for each internal black box shall be
based on the current standards regarding reliability calculations.
The reliability calculations will also include the wear-out failures, which mainly concern the
pump laser module for the optical fibre amplifier. The FIT figures given for each internal black
box shall take into account all expected failure modes.
The FIT figures of the internal black boxes shall be combined to give the failure rate of the
OFA as explained in Table B.1.

Table B.1 – Failure rate of components
Number of
Element Measured value (UCL 60 %)
elements
Doped fibre n A FIT (random failure)
1 1
Splice n A FIT (random failure)
2 2
Optical connector n A FIT (random failure)
3 3
Electronics n A FIT (random failure)
4 4
Pump laser module type 1 n A FIT (random and wear-out failure)
(4+1) (4+1)
Pump laser module type 2 n A ) FIT (random and wear-out failure)
(4+2) (4+2
………………………………………… …………………………………………………
Pump laser module type m n A FIT (random and wear-out failure)
(4+m) (4+m)
Monitor diode module type 1 n A FIT (random failure)
(4+m+1) (4+m+1)
Monitor diode module type 2 n A FIT (random failure)
(4+m+2) (4+m+2)
Monitor diode module type h n A FIT (random failure)
(4+m+h) (4+m+h)
Passive optical component type 1 n A FIT (random failure)
(4+m+h+1) (4+m+h+1)
Passive optical component type 2 n A FIT (random failure)
(4+m+h+2) (4+m+h+2)
…………………………………………  ……………………………….
Passive optical component type k n A FIT (wear-out failure)
(4+m+h+k) ( 4+m+h+k)
Variable optical attenuator type 1 n A ) FIT (random failure)
(4+m+h+k + 1) ( 4+m+h+k+1
Variable optical attenuator type 2 n( A FIT (random failure)
4+m+h+k + 2) ( 4+m+h+k+2)
…………………………………………  ……………………………….
Variable optical attenuator type I n A FIT (random failure)
(4+m+h+k + l) ( 4+m+h+k+I)
Total optical amplifier ∑ A *n
i i i
NOTE 1 n is the number of components of each type included in the OFA.
i
NOTE 2 If there is some redundancy in the pump source configuration, the FIT rate to be declared is that of the
pump module as a whole (i.e. taking into account that a secondary laser is turned on when the primary laser
fails).
NOTE 3 60 % UCL is common; however, 90 % can be used if deemed necessary.

The wear-out failure rate for the pump laser module is calculated according to the real
end-of-life criteria of the optical amplifier, which may be more stringent than the current
reliability model for other laser modules. The random failure rate will be inferred for other
components from tests performed for reliability qualification or from field data (that is, splices,
optical connectors).
B.2 Guidance on failure rate calculations
Refer to IEC 62005-2.
– 14 – IEC 61291-5-2:2017 © IEC 2017
Bibliography
IEC 60068-2-1, Environmental testing – Part 2-1: Tests – Test A: Cold
IEC 60068-2-6, Environmental testing – Part 2-6: Tests – Test Fc: Vibration (sinusoidal)
IEC 61300-2-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-1: Tests – Vibration (sinusoidal)
IEC 61300-2-2, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-2: Tests – Mating durability
IEC 61300-2-5, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-5: Tests – Torsion
IEC 61300-2-9, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-9: Tests – Shock
IEC 61300-2-18, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-18: Tests – Dry heat – High temperature endurance
IEC 61300-2-19, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-19: Tests – Damp heat (steady state)
IEC 61300-2-22, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-22: Tests – Change of temperature
IEC 61300-2-42, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-42: Tests – Static side load for strain relief
IEC 61300-2-44, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-44: Tests – Flexing of the strain relief of fibre optic
devices
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Part 2: Quantitative assessment of reliability based on accelerated ageing test – Temperature
and humidity; steady state
IEC 62343-2, Dynamic modules – Part 2: Reliability qualification
IEC TR 62572-2:2008, Fibre optic active components and devices – Reliability standards –
Part 2: Laser module degradation
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Laser modules used for telecommunication
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amplifier devices and subsystems

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Aspects for Electronic Components

___________
– 16 – IEC 61291-5-2:2017 © IEC 2017
SOMMAIRE
AVANT-PROPOS . 17
1 Domaine d’application . 19
2 Références normatives . 19
3 Termes, définitions et termes abrégés . 20
3.1 Termes et définitions . 20
3.2 Termes abrégés . 20
4 Exigences de fiabilité . 21
4.1 Essais . 21
4.1.1 Généralités . 21
4.1.2 Qualification de fiabilité des composants . 21
4.1.3 Qualification de fiabilité du procédé d’assemblage de l’AFO . 22
4.1.4 Qualification de fiabilité du module ou sous-système AFO . 23
4.1.5 Similarité structurelle . 25
Annexe A (normative) Procédures pour les essais de fiabilité des composants AFO . 26
A.1 Généralités . 26
A.2 Essais exigés pour des composants optiques passifs . 26
A.3 Essais exigés pour la fibre dopée . 26
Annexe B (informative) Calculs de fiabilité . 27
B.1 Calculs de fiabilité. 27
B.2 Recommandations concernant les calculs du taux de défaillance . 28
Bibliographie . 29

Tableau 1 – Liste d’essais minimaux pour composants optiques passifs, modules de
laser à pompe, modules à diode de contrôle et connecteurs optiques . 22
Tableau 2 – Liste d'essais minimaux pour fibre dopée . 22
Tableau 3 – Essais exigés pour les épissures . 23
Tableau 4 – Liste minimale pour essais exigés sur modules et sous-systèmes AFO . 24
Tableau A.1 – Essais exigés pour la fibre dopée . 26
Tableau B.1 – Taux de défaillance des composants . 28

COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
AMPLIFICATEURS OPTIQUES –
Partie 5-2: Spécifications de qualification –
Qualification de fiabilité pour amplificateurs à fibres optiques

AVANT-PROPOS
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