IEC 61753-058-2:2013

Fibre optic interconnecting devices and passive components - Performance standard - Part 058-2: Single mode fibre pigtailed style optical power limiter for category C - Controlled environment

IEC 61753-058-2:2013 contains the minimum initial test and measurement requirements and severities which an optical power limiter needs to satisfy in order to be categorized as meeting the requirements of single mode fibre pigtailed style optical power limiter used in controlled environments. Optical performance specified in this standard relates to in-line type configuration power limiters only. Keywords: initial test and measurement requirements, single mode fibre pigtailed style optical power limiter used in controlled environments.

Dispositifs d'interconnexion et composants passifs à fibres optiques - Norme de performance - Partie 058-2: Limiteur de puissance optique de type fibre amorce, à fibre unimodale pour catégorie C - Environnement contrôlé

La CEI 61753-058-2:2013 contient les exigences et les sévérités initiales minimales d'essai et de mesures auxquelles un limiteur de puissance optique est sensé satisfaire pour entrer dans une catégorie satisfaisant aux exigences d'un limiteur optique de type fibre amorce unimodale utilisé dans des environnements contrôlés. Les performances optiques spécifiées dans la présente norme concernent limiteurs de puissance ayant des configurations de type aligné uniquement. Mots clés: exigences initiale d'essai et de mesures, limiteur optique de type fibre amorce unimodale utilisé dans des environnements contrôlés

General Information

• Status: Published
• Publication Date: 17-Mar-2013
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: SC 86B - Fibre optic interconnecting devices and passive components
• Drafting Committee: WG 7 - TC 86/SC 86B/WG 7
• Current Stage: PPUB - Publication issued
• Start Date: 18-Mar-2013
• Completion Date: 31-Mar-2013

Overview

IEC 61753-058-2:2013 is an international standard developed by the International Electrotechnical Commission (IEC) that specifies performance requirements for single mode fibre pigtailed style optical power limiters used in controlled environments (Category C). This standard defines the minimum initial test and measurement procedures, including severity levels, that optical power limiters must meet to ensure reliable, consistent performance. These optical power limiters regulate the optical power in fibre optic systems by limiting excessive input power to a controlled maximum output power, thereby protecting sensitive optical components and improving system safety.

The standard focuses on in-line type optical power limiters configured for single mode fiber applications. It details essential characteristics such as optical performance, environmental testing, mechanical robustness, and response times. IEC 61753-058-2 serves as a critical reference for manufacturers, integrators, and testers of fibre optic interconnecting devices, ensuring compliance with internationally recognized quality benchmarks for passive optical components.

Key Topics

• Performance Criteria: Defines test requirements relating to optical power limiting capabilities, dimensional tolerances, mechanical stability, and environmental endurance for controlled environment applications.

• Test Procedures: Includes vibration, shock, temperature variation, cold, dry heat, damp heat, and high optical power testing as per referenced IEC 61300 series standards. These confirm durability under realistic operational stresses.

• Optical Specifications: Measures critical optical parameters such as attenuation, return loss, and polarization dependent loss to validate minimal signal impairment while maintaining power limiting functionality.

• Sample Sizing & Product Sourcing: Specifies the number of units to be tested and sourcing conditions to ensure representative testing, supporting reliable performance claims.

• Response Time & Power Limits: Outlines how to assess the time needed for the limiter to react to power surges and defines the maximum optical power the limiter can handle without damage, crucial for system safety and longevity.

• Normative References: Ties in with related IEC standards like IEC 60869-1 and the IEC 61300 test methods series, providing a comprehensive framework for design and testing of fibre optic interconnecting devices.

Applications

IEC 61753-058-2 compliant optical power limiters are essential in:

• Telecommunications Networks: Protecting sensitive receivers and devices downstream from high power optical signals in controlled environments such as data centers and central offices.

• Optical Amplifier Systems: Limiting output power to prevent damage and non-linear effects in fibre networks, ensuring stable signal transmission quality.

• Safety Devices: Serving as eye safety components by restricting optical power to safe levels, reducing risk in environments with high-power laser sources.

• Passive Fibre Optic Components: Ensuring quality and reliability in fibre pigtailed devices utilized in controlled settings where stable environmental conditions prevail.

• Research & Development: Providing a standardized basis for evaluating new optical power limiter designs and verifying compliance with international safety and performance benchmarks.

Related Standards

• IEC 60869-1: Generic specification for fibre optic passive power control devices, offering foundational guidance for power limiters.

• IEC 61300 Series: Comprehensive test and measurement procedures for fibre optic interconnecting devices, covering mechanical, environmental, and optical performance assessments.

• IEC 61753 Series: The overarching family of performance standards for fibre optic interconnecting devices and passive components, ensuring interoperability and quality.

• Patent Information: The standard also acknowledges relevant patent rights pertaining to optical power limiters, encouraging users to consult IEC and ISO patent databases for up-to-date intellectual property information.

---

This internationally recognized standard supports the consistent manufacture, testing, and application of single mode fibre pigtailed style optical power limiters. Adherence to IEC 61753-058-2:2013 ensures high-quality, reliable operation in controlled environments, enhances safety, and promotes interoperability within the fibre optic communications industry.

Standards Content (Sample)

IEC 61753-058-2 ®
Edition 1.0 2013-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Performance
standard –
Part 058-2: Single mode fibre pigtailed style optical power limiter for category C
– Controlled environment
Dispositifs d'interconnexion et composants passifs à fibres optiques – Norme
de performance –
Partie 058-2: Limiteur de puissance optique de type fibre amorce, à fibre
unimodale pour catégorie C – Environnement contrôlé

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les
microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

Useful links:
IEC publications search - www.iec.ch/searchpub Electropedia - www.electropedia.org
The advanced search enables you to find IEC publications The world's leading online dictionary of electronic and
by a variety of criteria (reference number, text, technical electrical terms containing more than 30 000 terms and
committee,…). definitions in English and French, with equivalent terms in
It also gives information on projects, replaced and additional languages. Also known as the International
withdrawn publications. Electrotechnical Vocabulary (IEV) on-line.

IEC Just Published - webstore.iec.ch/justpublished Customer Service Centre - webstore.iec.ch/csc
Stay up to date on all new IEC publications. Just Published If you wish to give us your feedback on this publication
details all new publications released. Available on-line and or need further assistance, please contact the
also once a month by email. Customer Service Centre: [e-mail].

A propos de la CEI
La Commission Electrotechnique Internationale (CEI) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications CEI
Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez
l’édition la plus récente, un corrigendum ou amendement peut avoir été publié.

Liens utiles:
Recherche de publications CEI - www.iec.ch/searchpub Electropedia - www.electropedia.org
La recherche avancée vous permet de trouver des Le premier dictionnaire en ligne au monde de termes
publications CEI en utilisant différents critères (numéro de électroniques et électriques. Il contient plus de 30 000
référence, texte, comité d’études,…). termes et définitions en anglais et en français, ainsi que
Elle donne aussi des informations sur les projets et les les termes équivalents dans les langues additionnelles.
publications remplacées ou retirées. Egalement appelé Vocabulaire Electrotechnique
International (VEI) en ligne.
Just Published CEI - webstore.iec.ch/justpublished
Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications de la CEI.
Just Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur
Disponible en ligne et aussi une fois par mois par email. cette publication ou si vous avez des questions
contactez-nous: [e-mail].
IEC 61753-058-2 ®
Edition 1.0 2013-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Performance

standard –
Part 058-2: Single mode fibre pigtailed style optical power limiter for category C

– Controlled environment
Dispositifs d'interconnexion et composants passifs à fibres optiques – Norme

de performance –
Partie 058-2: Limiteur de puissance optique de type fibre amorce, à fibre

unimodale pour catégorie C – Environnement contrôlé

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX S
ICS 33.180.20 ISBN 978-2-83220-669-0

– 2 – 61753-058-2 © IEC:2013
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Tests . 7
4 Test reports . 7
5 Performance requirements . 7
5.1 Sample size, sequencing and grouping. 7
5.2 Dimensions . 7
5.3 Test details and requirements . 8
Annex A (normative) Sample size and product sourcing requirements . 14
Annex B (normative) P definition . 15
limit
Annex C (normative) Response time definition . 16
Annex D (normative) Maximum allowed power input for optical limiters, single-mode . 17
Annex E (informative) Example of dimensions for optical limiters . 18
Annex F (normative) Testing of optical limiters . 19

Figure B.1 – Measurements of P as a function of P . 15
out in
Figure C.1 – Definition of response time . 16
Figure E.1 – Optical limiter, in-line configuration, regularly without connectors . 18
Figure F.1 – P Test set-up schematics . 19
limit
Figure F.2 – Response time testing set-up . 20

Table 1 – Performance requirements for optical power limitersn (1 of 6) . 8
Table A.1 – Sample size and product sourcing requirements . 14
Table D.1 – Maximum allowed power input for optical limiters, single-mode . 17

61753-058-2 © IEC:2013 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES AND
PASSIVE COMPONENTS – PERFORMANCE STANDARD –

Part 058-2: Single mode fibre pigtailed style optical
power limiter for category C – Controlled environment

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.
International Standard IEC 61753-058-2 has been prepared by subcommittee SC86B: Fibre
optic interconnecting devices and passive components, of IEC technical committee TC86:
Fibre optics.
The text of this standard is based on the following documents:
FDIS Report on voting
86B/3552/FDIS 86B/3594/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.

– 4 – 61753-058-2 © IEC:2013
A list of all parts in the IEC 61753 series, published under the general title Fibre optic
interconnecting devices and passive components – Performance standard, 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.
61753-058-2 © IEC:2013 – 5 –
INTRODUCTION
1) The International Electrotechnical Commission (IEC) draws attention to the fact that it is
claimed that compliance with this document may involve the use of a patent concerning
power limiters, registered as follows:

Country Patent number
Israel 147554
European Union EP 1467239 A2
USA USP110/398'859
Japan 4587695
Canada 24649043
IEC takes no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has assured the IEC that he/she is willing to negotiate
licences under reasonable and non-discriminatory terms and conditions with applicants
throughout the world. In this respect, the statement of the holder of this patent right is
registered with IEC. Information may be obtained from:
KiloLambda technologies, Ltd.
22a Raoul Wallenberg street,
Tel-Aviv 69719, Israel
Attention is drawn to the possibility that some of the elements of this document may be the
subject of patent rights other than those identified above. IEC shall not be held
responsible for identifying any or all such patent rights.
ISO (www.iso.org/patents) and IEC (http://patents.iec.ch) maintain on-line data bases of
patents relevant to their standards. Users are encouraged to consult the data bases for
the most up to date information concerning patents.
2) The optical power limiter is a passive device that regulates the optical power in fibres,
, as a result of varying input power
producing a controlled, constant output power P
limit
higher than P , and has no influence at powers below P . Under normal operation,
limit limit
when the input power is low, the optical power limiter has no effect on the system.
However, when the input power is high, the optical output power is limited to a
predetermined level (P ).The optical limiter is wavelength independent over its entire
limit
specified spectral range. IEC 60869-1 contains the generic information of the optical
power limiter. The optical power limiter is used at the input of power-sensitive equipment
and at the output of high power devices, such as amplifiers, or wherever power regulation
is required. The optical power limiter can serve as an eye safety device. The optical power
limiter has a maximal allowed optical power P . Above this power the optical limiter
in max
can melt down and open a through path for light. Numerical values for P are given in
in max
Annex D.
– 6 – 61753-058-2 © IEC:2013
FIBRE OPTIC INTERCONNECTING DEVICES AND
PASSIVE COMPONENTS – PERFORMANCE STANDARD –

Part 058-2: Single mode fibre pigtailed style optical
power limiter for category C – Controlled environment

1 Scope
This part of IEC 61753 contains the minimum initial test and measurement requirements and
severities which an optical power limiter needs to satisfy in order to be categorized as
meeting the requirements of single mode fibre pigtailed style optical power limiter used in
controlled environments. Optical performance specified in this standard relates to in-line type
configuration power limiters only.
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 60869-1, Fibre optic interconnecting devices and passive components – Fibre optic
passive power control devices – Part 1: Generic specification
IEC 61300 (all parts), Fibre optic interconnecting devices and passive components – Basic
test and measurement procedures
IEC 61300-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 1: General and guidance
IEC 61300-2-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-1: Tests – Vibration (sinusoidal)
IEC 61300-2-4, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-4: Tests – Fibre/cable retention
IEC 61300-2-9, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-9: Tests – Shock
IEC 61300-2-14, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-14: Tests – High optical power
IEC 61300-2-17, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-17: Tests – Cold
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)

61753-058-2 © IEC:2013 – 7 –
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 connectors
IEC 61300-3-2, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-2: Examination and measurements – Polarization
dependent loss in a single-mode fibre optic device
IEC 61300-3-3, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-3: Examinations and measurements – Active monitoring of
changes in attenuation and return loss
IEC 61300-3-4, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-4: Examinations and measurements –Attenuation
IEC 61300-3-6, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-6: Examinations and measurements – Return loss
IEC 61300-3-7, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-7: Examinations and measurements – Wavelength
dependence of attenuation and return loss of single mode components
IEC 61300-3-32, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 3-32: Examinations and measurements – Polarization
mode dispersion measurement for passive optical components
3 Tests
All test methods are in accordance with the IEC 61300 series.
All tests shall be carried out to validate performance over the required operating wavelength
and power range.
4 Test reports
Fully documented test reports and supporting evidence shall be prepared and shall be
available for inspection as evidence that the tests have been carried out and complied with
relevant requirements.
5 Performance requirements
5.1 Sample size, sequencing and grouping
Sample sizes for the tests are defined in Annex A.
Test groups shall be performed as shown in Annex A.
5.2 Dimensions
Dimensions shall comply with either an appropriate IEC interface standard or with those given
in appropriate manufacturers drawings, where the IEC interface standard does not exist or
cannot be used.
– 8 – 61753-058-2 © IEC:2013
5.3 Test details and requirements
Table 1 specifies the optical, environmental and mechanical performance requirements and
related test methods for optical power limiters.
Compliance to this standard requires demonstration of the ability to meet the relevant
performance requirement in Table 1.
Table 1 – Performance requirements for optical power limiters (1 of 6)
No. Tests Requirements Details
1 Insertion loss Operating wavelength Method: IEC 61300-3-7, method B.2.1. Test
range: 1 520 nm-1 625 nm sample configuration in accordance with
IEC 61300-3-4, substitution method.
Insertion loss:
Launch patchcord ≥ 2 m. Only the fundamental mode shall
≤ 2 dB for P > 9 dBm
limit length:
propagate at the optical power limiter
interface and at the detector.
≤ 5 dB for 0 dBm ≤ P
limit
≤ 9 dBm
Launch The wavelength of the source shall be
conditions: longer than cut-off wavelength of the fibre
≤ 7 dB for P ≤ 0 dBm
limit
Source power ≤ ± 0,05 dB over the measuring period
Insertion loss is measured
stability:
or at least 1 h
with input power
≤ –5 dBm. This power level
Wavelength 1 520 nm to 1 625 nm
is always below P at the
limit range:
linear behaviour of the
limiter Total uncertainty:
≤ ± 0,05 dB
2 Return loss Method: IEC 61300-3-6, Method 1 OCWR
Up to P : ≥ 40 dB return
limit
loss is measured with input
Optical source 1 520 nm and 1 625 nm
power ≤ –5 dBm. This
wavelength:
power level is always
Test every sample with the two
below P , at the linear
wavelengths
limit
behaviour of the limiter.
Total uncertainty:
≤ ± 2 dB over the dynamic range
Above P : ≥ 30 dB
limit to be measured
return loss is measured
with input power of + 3 dB
above P
limit
3 Polarization ≤ 0,2 dB Method: IEC 61300-3-2, all polarization method
dependent
Over the specified Optical source 1 550 nm ± 10 nm
loss
operating wavelength wavelength:
range.
Total uncertainty: ≤ ± 0,05 dB over the dynamic range
Measurements carried out
to be measured
only in low power
≤ –5 dBm
4 Polarization Method: IEC 61300-3-32, MPS method
≤ 0,2 ps
mode
Optical source
Over the specified 1 550 nm ± 10 nm
dispersion
wavelength:
operating wavelength
range.
Measurements carried out
Total uncertainty: ≤ ± 0,05 dB over the dynamic range
only in low power
to be measured
≤ –5 dBm
61753-058-2 © IEC:2013 – 9 –
Table 1 (2 of 6)
No. Tests Requirements Details
5 High optical Before and after the test, Method: Future IEC 61300-2-14: Full
power the insertion loss shall characterization at a specific wavelength
meet the requirements of
Test temperature:
25 °C ± 2 °C
test 1.
Power loads for
Before and after the test, For P ≤ 10 dBm:
limit
the return loss shall meet testing:
P + 5 dB for continuous wave (CW)
the requirements of test 2
limit
operation, tested for 96 h
P + 8 dB for short bursts, up to
limit
1 s/min for 1 h
For P > 10 dBm:
limit
P + 3 dB for CW operation, tested
limit
for 96 h
P + 5 dB for short bursts, up to
limit
1 s/min for 1 h
Optical source 1 550 nm
wavelength:
Test duration: Duration of long-term test: 96 h at max.
power. For short bursts, up to 1 s/ min

Launch patchcord Same as test No. 1
length and launch
conditions:
6 Limit power Method: See Annex F
P as specified ±
limit
0,5 dB.
Source: Slowly varying optical power source from
P example is shown in –5 dBm and up to +8 dB above P
limit limit
Annex B.
Optical source 1 550 nm
The limiter will meet the
wavelength:
limit power requirements
as specified in Annex D, Optical source 100 mW power increments, at a rate of 1
power increment: increment of 100 mW/s
when operated at the 3
specified temperatures.
Test temperature: 10 °C ± 2 °C
This test uses a slowly
25 °C ± 2 °C
varying optical power
source starting at –5 dBm
60 °C ± 2 °C
and up to +8 dB above
P , giving results of
limit Detector system: Linearity within ± 0,05 dB.
insertion loss and P
limit
for the whole range of Spectral response matched to source.
input powers
Dynamic range between –5 dBm to +8 dB
above P
limit
Launch patchcord Same as test No. 1
length and Launch
conditions:
– 10 – 61753-058-2 © IEC:2013
Table 1 (3 of 6)
No. Tests Requirements Details
7 Response time Method:  See Annex F
500 μs ± 10 μs
Optical source: Laser source having adjustable power up
Response time example
to 8 dB above P
see Annex C.
limit
Square wave input power, having rise
The limiter will meet the
requirements as specified time of 10 μs
when operated at the 3
Optical source 1 550 nm
specified temperatures
wavelength:
Test temperature:
10 °C ± 2 °C
25 °C ± 2 °C
60 °C ± 2 °C
Launch patchcord Same as test No.1
length and Launch
conditions:
8 Damp heat Before and after the test Method: IEC 61300-2-19
(steady state) the insertion loss shall
During the test, the change in insertion
meet the requirements of
loss shall be measured by test method
test 1.
IEC 61300-3-3.
Before and after the test
Pre conditioning Standard atmospheric conditions as
the return loss shall meet
procedure: defined in IEC 61300-1 for 2 h.
the requirements of test 2.
Temperature:
+40 ± 2 °C
The insertion loss change
during the test shall be
Relative humidity: +2
%
within ± 0,5 dB of the 93
−3
initial value .
Above measurements Duration of 96 h
carried out in power exposure:
≤ –5 dBm
Specimen Yes
Before and after the test optically
functioning:
the P shall meet the
limit
requirements of test 6
Optical source 1 550 nm
wavelength:
Recovery Allow specimens to return to standard
procedure: atmospheric conditions as defined in
IEC 61300-1 in 2 h
61753-058-2 © IEC:2013 – 11 –
Table 1 (4 of 6)
No. Tests Requirements Details
9 Change of Before and after the test Method: IEC 61300-2-22
temperature the insertion loss shall
During the test the change in insertion
meet the requirements of
loss shall be measured by test method
test 1.
IEC 61300-3-3.
Before and after the test
Pre conditioning Standard atmospheric conditions as
the return loss shall meet
procedure: defined in IEC 61300-1 for 2 h.
the requirements of test 2.
High +60 ± 2 °C
The insertion loss change
temperature:
during the test shall be
within ± 0,5 dB of the
Low temperature:
–10 ± 2 °C
initial value. The above
measurements are carried
Duration at 1 h
out at a power of
extreme
≤ –5 dBm.
temperature:
Before and after the test,
Temperature rate 1 °C/min
the P shall meet the
limit of change:
requirements of test 6
Number of 5
cycles:
Specimen Yes
optically
functioning:
Maximum 15 min
sampling interval
during the test:
Optical source 1 550 nm
wavelength:
Recovery Allow specimens to return to standard
procedure: atmospheric conditions as defined in
IEC 61300-1 in 2 h
10 Dry heat – Before and after the test Method: IEC 61300-2-18.
High the insertion loss shall
During the test the change in insertion
temperature meet the requirements of
loss shall be measured by test method
endurance test 1.
IEC 61300-3-3.
Before and after the test
Pre conditioning Standard atmospheric conditions as
the return loss shall meet
procedure: defined in IEC 61300-1 for 2 h.
the requirements of test 2
High +60 ± 2 °C
The insertion loss change
temperature:
during the test shall be
within ± 0,5 dB of the
Duration at 96 h
initial value. The above
extreme
measurements carried out
temperature:
at a power of ≤ –5 dBm.
Maximum 1 h
Before and after the test
sampling interval
the P shall meet the
limit during the test:
requirements of test 6
Specimen Yes
optically
functioning:
Optical source 1 550 nm
wavelength:
Recovery Allow specimens to return to standard
procedure: atmospheric conditions as defined in
IEC 61300-1 within 2 h
– 12 – 61753-058-2 © IEC:2013
Table 1 (5 of 6)
No. Tests Requirements Details
11 Cold Before and after the test Method: IEC 61300-2-17.
the insertion loss shall
During the test, the change in insertion
meet the requirements of
loss shall be measured by test method
test 1.
IEC 61300-3-3.
Before and after the test
Pre conditioning Standard atmospheric conditions as
the return loss shall meet
procedure: defined in IEC 61300-1 for 2 h
the requirements of test 2.
Low temperature: –10 ± 2 °C
The insertion loss change
during the test shall be
Duration at 96 h
within ± 0,5 dB of the
extreme
initial value. The above
temperature:
measurements carried out
at a power of
Specimen Yes
≤ –5 dBm.
optically
functioning:
Before and after the test
the P shall meet the
limit Optical source 1 550 nm
requirements of test 6
wavelength:
Maximum 1 h
sampling interval
during the test:
Recovery Allow specimens to return to standard
procedure: atmospheric conditions as defined in
IEC 61300-1 in 2 h
12 Vibration Before and after the test Method: IEC 61300-2-1.
(sinusoidal) the insertion loss shall
During the test, the change in insertion
meet the requirements of
loss shall be measured by test method
test 1.
IEC 61300-3-3.
Before and after the test
Frequency range: 10 Hz – 55 Hz
the return loss shall meet
the requirements of test 2.
Vibration 0,75 mm
amplitude:
Above measurements
carried out at a power of
Number of 15
≤ –5 dBm.
cycles:
Before and after the test
Rate of change: 1 octave/min
the P shall meet the
limit
requirements of test 6
Number of axes: 3 orthogonal axes

Specimen No
optically
functioning:
Optical source 1 550 nm
wavelength::
61753-058-2 © IEC:2013 – 13 –
Table 1 (6 of 6)
No. Tests Requirements Details
13 Shock Insertion loss change Method: IEC 61300-2-9
between value before test
Acceleration 500 g
and value after test shall
force
be within ± 0,5 dB of the
initial value.
Number of axes: 3 axes, 2 directions
Before and after the test
Number of 2 shocks per direction, 12 shocks total
the return loss shall meet
cycles:
the requirements of test 2.
Duration oer axis: Nominal 1 ms duration, half sine pulse
Above measurements
Measurements Before, after each axis and after the test
carried out at a power of
required:
≤ –5 dBm.
Specimen No
Before and after the test
optically
the P shall meet the
limit
functioning:
requirements of test 6
Optical source 1 550 nm
wavelength
14 Static side Insertion loss change Method: IEC 61300-2-42
a
load between value before test
Magnitude of the 1 N for 1 h for reinforced cable. 0,2 N for
and value after test shall
load: 5 min for secondary coated fibres
be within ± 0,5 dB of the
initial value.
Rate of load 0,5 N/s
application:
Before and after the test
the return loss shall meet
Load application 0,3 m from the end of the device and two
the requirements of test 2
point: mutually perpendicular directions as
permitted by the product design
Above measurements
carried out in power
Specimen No
≤ –5 dBm
optically
functioning
Before and after the test
1 550 nm
the P shall meet the
Optical source
limit
requirements of test 6 wavelength:
15 Fibre/cable Before and after the test Method: IEC 61300-2-4
retention the insertion loss shall
Magnitude of the 10 N ± 1 N at 5 N/s for reinforced cables
meet the requirements of
load:
test 1.
5,0 N ± 0,5 N at 0,5 N/s for secondary
Before and after the test coated fibres
the return loss shall meet
2,0 N ± 0,2 N at 0,5 N/s for primary coated
the requirements of test 2
fibres
The insertion loss change
Load application 0,3 m from point where the fibre/cable
during the test shall be
point: exits from the specimen
within ±0,5 dB of the initial
value . Above measure-
Duration of the 120 s duration at 10 N
ments carried out in power
load:
≤ –5 dBm.
60 s duration at 2 N or 5 N
Before and after the test
Method of The sample shall be rigidly mounted such
the P shall meet the
limit
mounting: that the load is only applied to the
requirements of test 6
fibre/cable retention mechanism
Specimen Yes
optically
functioning:
Optical source 1 550 nm
wavelength:
a
Static side load shall be applied in two mutually perpendicular directions as permitted by the product design.
For example, a product with a base plate extending beyond the fibre exit may prohibit loading in that
direction.
– 14 – 61753-058-2 © IEC:2013
Annex A
(normative)
Sample size and product sourcing requirements
Table A.1 gives sample size and product sourcing requirements.
Table A.1 – Sample size and product sourcing requirements
No. Test Sample size Source
N/A Dimensional 10 New
1 Insertion loss 48 New
2 Return loss 48 Test 1
3 Polarization dependent loss 48 Test 2
4 Polarization mode dispersion 4 Test 3
5 High optical power 4 Test 4
6 Limit power 4 Test 3
7 Response time 4 Test 3
8 Damp heat (steady state) 4 Test 3
9 Change of temperature 4 Test 3
10 Dry heat – High temperature endurance 4 Test 3
11 Cold 4 Test 3
12 Vibration (sinusoidal) 4 Test 3
13 Shock 4 Test 3
14 Static side load 4 Test 3
15 Fibre/cable retention 4 Test 3
NOTE Tests 5 to 15 may be performed in any order. Samples for tests 5 to 15
should be randomly selected from the samples of test 3.

61753-058-2 © IEC:2013 – 15 –
Annex B
(normative)
P definition
limit
P is defined as the average between P and P of two consecutive
limit out max out min
measurements,, one after the other, of P as a function of P , as depicted in Figure B.1,
out in
where P is the maximal allowed power into the optical power limiter according to
in max
Table D.1.
P
out
P
out max
P
out min
P P  (dBm)
P –3 dB
in max in max in
IEC  487/13
Figure B.1 – Measurements of P as a function of P
out in
– 16 – 61753-058-2 © IEC:2013
Annex C
(normative)
Response time definition
Response time is the total time where the optical power limiter output power level is above the
(P + 1 dB) power line, when exposed to a square wave input power, 1 ms long, having a
limit
rise time of 10 μs and a steady-state power of P + 3 dB. Figure C.1 illustrates the
limit
parameters.
In this case, rise time is the elapsed time for input power to reach 90 % of its steady-state
value from the time it starts.

P
in
Power
Response time
P
out
P +3 dB
limit
P +1 dB
limit
P
limit
Time
1 ms input pulse time
IEC  488/13
Figure C.1 – Definition of response time

61753-058-2 © IEC:2013 – 17 –
Annex D
(normative)
Maximum allowed power input for optical limiters, single-mode

Table D.1 gives the maximum allowed power inputs for optical limiters, single-mode.
Table D.1 – Maximum allowed power input for optical limiters, single-mode
P continuous wave P for 1 s exposure every min
P
in max in max
limit
dBm dBm dBm
0 Up to 5 Up to 8
1 Up to 6 Up to 9
2 Up to 7 Up to 10
3 Up to 8 Up to 11
4 Up to 9 Up to 12
5 Up to 10 Up to 13
6 Up to 11 Up to 14
7 Up to 12 Up to 15
8 Up to 13 Up To 16
9 Up to 14 Up to 17
10 Up to 15 Up to 18
11 Up to 16 Up to 19
12 Up to 17 Up to 20
13 Up to 18 Up to 21
14 Up to 19 Up to 22
15 Up to 20 Up to 23
16 Up to 21 Up to 24
17 Up to 22 Up to 25
NOTE 25 dBm is the maximum allowed power input into optical limiters having P up to
limit
17 dBm. Beyond this 25 dBm maximum power, the optical limiter is dysfunctional and can let
light through.
– 18 – 61753-058-2 © IEC:2013
Annex E
(informative)
Example of dimensions for optical limiters

The optical limiter configuration is given in Figure E.1.

Optical limiter
Fibre in
Fibre out
IEC  489/13
NOTE Typical dimensions are 6 mm diameter and 50 mm length.
Figure E.1 – Optical limiter, in-line configuration, regularly without
connectors
61753-058-2 © IEC:2013 – 19 –
Annex F
(normative)
Testing of optical limiters
F.1 Introductory remark
Annex F describes the testing of the optical limiter functionality and the measurement of its
parameters. Testing of the following parameters, which do not appear in regular IEC
standards, is described:
P
limit ;
response time.
The test requires high power, and needs a dedicated test set-up.
An example of a test carried out on an optical limiter will be given according to this annex,
having the following parameters:
P :  9 dBm to 11 dBm;
limit
response time : 500 µs ± 10 µs.
F.2 P measurement
limit
F.2.1 General
Measuring P is the first and most important functional test of the limiter, leading to expose
limit
the rated optical limiter, e.g. at 10 dBm, to slowly vary the powers, starting at 0 dBm and
going up to 18 dBm.
The powers needed call for an oscillator followed by fibre amplifiers reaching the power level
of 18 dBm and more.
F.2.2 Test set-up schematics
Figure F.1 shows P test set-up schematics.
limit
Thermal chamber
Laser Variable
Amplifier DUT
oscillator attenuator
Detector
PC
Control line
Optical fibre
IEC  490/13
Figure F.1 – P Test set-up schematics
limit
___________
This annex will be deleted when an IEC standard for a test method for an optical limiter is published.

– 20 – 61753-058-2 © IEC:2013
The output power measured by the detector, as a function of input power, provides the P
limit
of the DUT. The insertion loss for low and high power is provided as well and return loss
measurement can be added to the set-up.
F.3 Response time measurement
F.3.1 General
The response time of the optical limiter is defined in Annex C.
F.3.2 Test set-up schematics
Schematics of the test set-up and description are shown in Figure F.2.

Thermal chamber
Optical pulse
Detector
Laser
DUT
generator
Scope
PC
Control line
Optical fibre
IEC  491/13
Figure F.2 – Response time testing set-up
A 1 550 nm wavelength laser provides the input signal, which is amplified and regenerated by
the optical pulse generator unit, controlled by a designated software program at the PC.
Output power is measured and presented graphically using an oscilloscope. Analysis of the
data is carried out using standard mathematical software.
Since the response time is input energy dependent, the response time needs to be measured
at a predetermined value above threshold, e.g. 3 dB above P .
limit
Since the test is carried out at three different temperatures, the minimal specified temperature,
the maximal specified temperature and the average specified temperature of the optical limiter,
the DUT is placed in a thermal chamber having a stable temperature as required.

_____________
– 22 – 61753-058-2 © CEI:2013
SOMMAIRE
AVANT-PROPOS . 23
INTRODUCTION . 25
1 Domaine d’application . 26
2 Références normatives . 26
3 Essais . 27
4 Rapport d’essai . 27
5 Exigences de performances. 27
5.1 Nombre d'échantillons, séquencement et groupement . 27
5.2 Dimensions . 28
5.3 Détails des essais et exigences . 28
Annexe A (normative) Nombre d'échantillons et exigences de source du produit . 35
Annexe B (normative) Définition de P . 36
limit
Annexe C (normative) Définition du temps de réponse . 37
Annexe D (normative) Puissance d'entrée maximale admise pour les limiteurs
optiques en régime unimodal . 38
Annexe E (informative) Exemple de dimensions de limiteurs optique . 39
Annexe F (informative) Essai des limiteurs optiques . 40

Figure B.1 − Mesures de P en fonction de P . 36
out in
Figure C.1 − Définition du temps de réponse . 37
Figure E.1 − Limiteur de puissance optique, configurations en ligne, régulier sans
connecteur . 39
Figure F.1 − Schéma du montage d'essai de P . 40
limit
Figure F.2 − Montage d'essai de temps de réponse . 41

Tableau 1 − Exigences de performance pour les limiteurs optiques . 28
Tableau A.1 − Nombre d'échantillons et exigences de source du produit. 35
Tableau D.1 − Puissance d'entrée maximale admise pour les limiteurs optiques en
régime unimodal . 38

61753-058-2 © CEI:2013 – 23 –
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
DISPOSITIFS D'INTERCONNEXION ET COMPOSANTS PASSIFS
À FIBRES OPTIQUES – NORME DE PERFORMANCE –

Partie 058-2: Limiteur de puissance optique de type fibre amorce,
à fibre unimodale pour catégorie C – Environnement contrôlé

AVANT-PROPOS
1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation
composée de l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI a
pour objet de favoriser la coopération internationale pour toutes les questions de normalisation dans les
domaines de l'électricité et de l'électronique. A cet effet, la CEI – entre autres activités – publie des Normes
internationales, des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au
public (PAS) et des Guides (ci-après dénommés "Publication(s) de la CEI"). Leur élaboration est confiée à des
comités d'études, aux travaux desquels tout Comité national intéressé par le sujet traité peut participer. Les
organisations internationales, gouvernementales et non gouvernementales, en liaison avec la CEI, participent
également aux travaux. La CEI collabore étroitement avec l'Organisation
...