Fibre optic interconnecting devices and passive components - Reliability - Part 9-4: High power qualification of passive optical components for environmental category C

IEC 62005-9-4:2018 gives the requirements for the reliability qualification of passive optical components when used in high optical power applications for the environmental category C.
Keywords: reliability assurance at high optical power, environmental category C

Dispositifs d'interconnexion et composants passifs fibroniques - Fiabilité - Partie 9-4: Qualification de puissance élevée des composants optiques passifs pour la catégorie environnementale C

IEC 62005-9-4:2018 traite des exigences de qualification de fiabilité de composants optiques passifs en ce qui concerne leur utilisation dans des applications à puissance optique élevée pour la catégorie environnementale C.
Mots clés: l'assurance de la fiabilité à puissance optique élevée, catégorie environnementale C

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Published
Publication Date
24-Jul-2018
Current Stage
PPUB - Publication issued
Completion Date
25-Jul-2018
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IEC 62005-9-4
Edition 1.0 2018-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – reliability –
Part 9-4: High power qualification of passive optical components for
environmental category C
Dispositifs d'interconnexion et composants passifs fibroniques – fiabilité –
Partie 9-4: Qualification de puissance élevée des composants optiques passifs
pour la catégorie environnementale C
IEC 62005-9-4:2018-07(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62005-9-4
Edition 1.0 2018-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – reliability –
Part 9-4: High power qualification of passive optical components for
environmental category C
Dispositifs d'interconnexion et composants passifs fibroniques – fiabilité –
Partie 9-4: Qualification de puissance élevée des composants optiques passifs
pour la catégorie environnementale C
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.20 ISBN 978-2-8322-6162-0

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

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

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 62005-9-4:2018 © 2018
CONTENTS

CONTENTS ............................................................................................................................ 2

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms and definitions ...................................................................................................... 6

4 High power qualification tests .......................................................................................... 7

4.1 Tests ...................................................................................................................... 7

4.2 Sample size ............................................................................................................ 9

5 Apparatus ........................................................................................................................ 9

5.1 Source (S) .............................................................................................................. 9

5.2 Detector unit (D) ..................................................................................................... 9

5.3 Environmental chamber .......................................................................................... 9

5.4 Data acquisition system (DAS) ................................................................................ 9

5.5 Temporary joints (TJ) .............................................................................................. 9

5.6 Safety devices ...................................................................................................... 10

6 Test procedure .............................................................................................................. 10

6.1 Preconditioning ..................................................................................................... 10

6.2 Damp heat and post damp heat high optical power exposure ................................ 10

6.2.1 Initial optical measurements .......................................................................... 10

6.2.2 Damp heat test .............................................................................................. 10

6.2.3 Optical measurements following damp heat test ............................................ 10

6.2.4 Post damp heat exposure to high optical power ............................................. 10

6.2.5 Optical measurements following damp heat and high power exposure ........... 10

6.3 Temperature cycling and post temperature cycling high optical power

exposure ............................................................................................................... 10

6.3.1 Initial optical measurements .......................................................................... 10

6.3.2 Temperature cycling test ............................................................................... 10

6.3.3 Optical measurements following temperature cycling test .............................. 11

6.3.4 Post temperature cycling exposure to high optical power ............................... 11

6.3.5 Optical measurements following temperature cycling and high power

exposure ....................................................................................................... 11

6.4 High power test (endurance) ................................................................................. 11

6.4.1 Initial optical measurements .......................................................................... 11

6.4.2 Exposure to high optical power (endurance) .................................................. 11

6.4.3 Optical measurements following exposure to high power ............................... 11

7 Failure criteria ............................................................................................................... 11

8 Test report ..................................................................................................................... 11

Bibliography .......................................................................................................................... 12

Table 1 – High power reliability qualification tests for passive optical components and

sample size ............................................................................................................................ 8

---------------------- Page: 4 ----------------------
IEC 62005-9-4:2018 © 2018 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES AND
PASSIVE COMPONENTS – RELIABILITY –
Part 9-4: High power qualification of passive optical components
for environmental category C
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

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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

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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

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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 62005-9-4 has been prepared by subcommittee 86B: Fibre optic

interconnecting devices and passive components of IEC technical committee 86: Fibre optics.

This bilingual version (2018-11) corresponds to the monolingual English version, published in

2018-07.
The text of this International Standard is based on the following documents:
FDIS Report on voting
86B/4130/FDIS 86B/4136/RVD

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.
---------------------- Page: 5 ----------------------
– 4 – IEC 62005-9-4:2018 © 2018
The French version of this document has not been voted upon.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts in the IEC 62005 series, published under the general title Fibre optic

interconnecting devices and passive components – Reliability, 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.
---------------------- Page: 6 ----------------------
IEC 62005-9-4:2018 © 2018 – 5 –
INTRODUCTION

At present there is no standard for reliability qualification for passive components with respect

to high power use. This has led to component manufacturers having to perform different set of

tests for various customers leading to higher cost. Additionally such non-standardized testing

has led to either over or under testing devices. The aim of this document is to mitigate these

issues, by establishing a common framework for reliability assurance at high optical power.

While there is no exact number beyond which the optical power is demarcated as high, power

exceeding 23 dBm (200 mW) of total input power is considered high.
---------------------- Page: 7 ----------------------
– 6 – IEC 62005-9-4:2018 © 2018
FIBRE OPTIC INTERCONNECTING DEVICES AND
PASSIVE COMPONENTS – RELIABILITY –
Part 9-4: High power qualification of passive optical components
for environmental category C
1 Scope

This part of IEC 62005 gives the requirements for the reliability qualification of passive optical

components when used in high optical power applications for the environmental category C.

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 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 61300-2-14, Fibre optic interconnecting devices and passive components – Basic test

and measurement procedures – Part 2-14: Tests – High optical power

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 61300-3-1, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 3-1: Examinations and measurements – Visual examination

IEC 61300-3-35, Fibre optic interconnecting devices and passive components – Basic test

and measurement procedures – Part 3-35: Examinations and measurements – Visual
inspection of fibre optic connectors and fibre-stub transceivers

IEC 62005-9-1, Fibre optic interconnecting devices and passive components – Reliability –

Part 9-1: Qualification of passive optical components
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
---------------------- Page: 8 ----------------------
IEC 62005-9-4:2018 © 2018 – 7 –
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
maximum input optical power
opermax

maximum input optical power to which the optical component or device is rated for operation

over its lifetime
3.2
maximum operational temperature
opermax

maximum temperature at which the optical component or device is rated for operation over its

lifetime
3.3
acceleration factor

equivalent acceleration factor that equates expected system life to 2 000 h test duration

4 High power qualification tests
4.1 Tests

Table 1 summarizes the tests for high power qualification test program that shall be

performed for passive devices and is intended for use in high optical power conditions.

The damp heat and temperature cycling tests (tests 1(a) and 2(a) in Table 1) are incorporated

in the basic qualification program in IEC 62005-9-1 for reliability qualification assurance.

When components are intended for use in high power applications,

– high power exposure (tests 1(b) and 2(b) in Table 1) shall be performed on samples that

have first undergone damp heat and temperature cycling tests (tests 1(a) and 2(a)

respectively in Table 1), and

– an endurance test (test 3 in Table 1) shall also be done to provide reliability qualification

assurance for passive components vis-à-vis high optical power.
---------------------- Page: 9 ----------------------
– 8 – IEC 62005-9-4:2018 © 2018
Table 1 – High power reliability qualification tests for
passive optical components and sample size
No Test Details Sample size/no. of
allowed failures
1 (a) Damp heat Non-hermetic components 3/0
IEC 61300-2-19 Temperature: 85 ºC
Humidity: 85 % RH
Duration: 500 h
Hermetic components
Temperature: 85 ºC
Humidity: 85 % RH
Duration: 100 h
The test and measurements shall be
performed as outlined in 6.2.
(b) Post damp heat high optical Temperature: T
opermax
power exposure
Optical power level: P
opermax
IEC 61300-2-14
Duration: 100 h
Test 1(b) shall be performed on
samples that have first undergone test
1(a).
The test and measurements shall be
performed as outlined in 6.2.
2 (a) Temperature cycling Temperature: –40 ºC to 70 ºC 3/0
IEC 61300-2-22 Dwell time: ≥ 15 min
Number of cycles: 100
The test and measurements shall be
performed as outlined in 6.3.
(b) Post temperature cycling high Temperature: T
opermax
optical power exposure
Optical power level: P
opermax
IEC 61300-2-14
Duration: 100 h
Test 2(b) shall be performed on
samples that have first undergone test
2(a).
The test and measurements shall be
performed as outlined in 6.3.
3 High power test (endurance) Temperature: T 3/0
opermax
IEC 61300-2-14 Duration: 2 000 h
Power level = k × P
opermax
k is the acceleration factor that equates
expected system life (use) to 2 000 h of
operation, if that has been determined
by fundamental analysis of all failure
modes.
In the event k has not been determined,
a default value of 1,5 shall be used.
The test and measurements shall be
performed as outlined in 6.4.
---------------------- Page: 10 ----------------------
IEC 62005-9-4:2018 © 2018 – 9 –
4.2 Sample size
Sample sizes for the tests are defined in Table 1 of this document.
5 Apparatus
5.1 Source (S)

The source unit consists of an optical emitter, the means to connect to it, and the associated

drive electronics. A tunable light source (TLS), in which a specific output wavelength can be

tuned, may be chosen as the optical emitter. A TLS may consist of a tunable laser diode (LD)

and an optical amplifier, or be a fibre ring laser in order to get an efficient power to test.

Generally, the power and stability requirements of a test will necessitate that the means to

connect to the optical emitter be a fibre pigtail. The source shall be stable in output power and

wavelength/frequency over the measurement period. For dense wavelength division

multiplexing (DWDM) devices, the frequency uncertainty (instead of the wavelength

uncertainty) shall be less than half of the channel bandwidth. Unless otherwise stated in the

relevant specification, the source shall have the following characteristics:
– wavelength uncertainty: ≤ ±5 nm (not DWDM devices);
– frequency uncertainty: ≤ ±6,3 GHz (DWDM devices of 25 GHz channel bandwidth);
≤ ±12,5 GHz (DWDM devices of 50 GHz channel bandwidth);
≤ ±25 GHz (DWDM devices of 100 GHz channel bandwidth);
– stability of responsivity: ≤ ±0,1 dB
5.2 Detector unit (D)

The detector unit consists of an optical detector, the means to connect to it, and the

associated electronics. The detectors shall have sufficient dynamic range to make the

necessary measurements and shall be linear over this range. The detectors shall be stable

over the measurement period and shall have an operational range consistent with the device

under test. The detectors can either use an adapter for the connection or accept bare fibre

properly cleaved. The detectors shall be capable of capturing all light emitted by the fibre tip

and/or connector plug. The detectors shall have the following characteristics:
– linearity: ≤ ±0,1 dB
– stability: ≤ 0,05 dB
5.3 Environmental chamber

The test setup shall include an environmental chamber capable of producing and maintaining

the specified temperature and/or humidity.
5.4 Data acquisition system (DAS)

Recording of the optical power readings at the optical detector may be done either manually

or automatically. Appropriate DAS shall be used where measurements are performed
automatically.
5.5 Temporary joints (TJ)

These are typically used in connecting the device under test to the test apparatus. Generally,

the optical power and stability requirements of a test will necessitate that the temporary joints

be fusion splices.
---------------------- Page: 11 ----------------------
– 10 – IEC 62005-9-4:2018 © 2018
5.6 Safety devices

All necessary safety devices, including laser safety glasses, signs and other safety materials

shall be provided, in order to protect individuals from possible hazards during testing

6 Test procedure
6.1 Preconditioning

The chosen test samples shall be representative of a standard product. The passive

components (devices under test) shall be prepared and cleaned according to the

manufacturer’s instructions. Visual examination shall be undertaken in accordance with

IEC 61300-3-1 and IEC 61300-3-35. The passive components shall be preconditioned for 2 h

at the standard atmospheric conditions as defined in IEC 61300-1, unless otherwise specified.

6.2 Damp heat and post damp heat high optical power exposure
6.2.1 Initial optical measurements

Optical measurements at low optical power shall be made on devices under test before the

damp heat test, using the applicable part from IEC 61300 (all parts).
6.2.2 Damp heat test

Damp heat reliability test (test 1(a) in Table 1) shall be done in accordance with

IEC 62005-9-1 at the conditions specified in Table 1.
6.2.3 Optical measurements following damp heat test

Optical measurements at low optical power shall be made on devices under test after the

damp heat test, using the applicable part from IEC 61300 (all parts), in a manner identical to

the measurements in 6.2.1.
6.2.4 Post damp heat exposure to high optical power

After 6.2.3, exposure to high optical power (test 1(b) in Table 1) shall be carried out at the

conditions mentioned in Table 1 on the devices under test in accordance with IEC 61300-2-14,

at the intended wavelength(s) of the operation of the device for the duration of 100 h.

6.2.5 Optical measurements following damp heat and high power exposure

Following 6.2.4, optical measurements at low optical power shall be made on devices under

test, using the applicable part from IEC 61300 (all parts), in a manner identical to the

measurements in 6.2.1.
6.3 Temperature cycling and post temperature cycling high optical power exposure
6.3.1 Initial optical measurements

Optical measurements at low optical power shall be made on devices under test before the

temperature cycling test, using the applicable part from IEC 61300 (all parts).
6.3.2 Temperature cycling test

Temperature cycling reliability test (test 2(a) in Table 1) shall be done in accordance with

IEC 62005-9-1 at the conditions specified in Table 1.
---------------------- Page: 12 ----------------------
IEC 62005-9-4:2018 © 2018 – 11 –
6.3.3 Optical measurements following temperature cycling test

Optical measurements at low optical power shall be made on devices under test after the

temperature cycling test, using the applicable part from IEC 61300 (all parts), in a manner

identical to the measurements in 6.3.1.
6.3.4 Post temperature cycling exposure to high optical power

After 6.3.3, exposure to high optical power (test 2(b) in Table 1) shall be carried out at the

conditions mentioned in Table 1 on devices under test in accordance with IEC 61300-2-14 at

the intended wavelength(s) of the operation of the device for the duration of 100 h.

6.3.5 Optical measurements following temperature cycling and high power exposure

Following 6.3.4, optical measurements at low optical power shall be made on devices under

test, using the applicable part from IEC 61300 (all parts), in a manner identical to the

measurements in 6.3.1.
6.4 High power test (endurance)
6.4.1 Initial optical measurements

Optical measurements at low optical power shall be made on devices under test before the

exposure to high optical power (endurance) test, using the applicable part from
IEC 61300 (all parts).
6.4.2 Exposure to high optical power (endurance)

Exposure to high power shall be carried out at the conditions mentioned in Table 1 (test 3 in

Table 1) in accordance with IEC 61300-2-14. This shall be done
a) at the intended wavelength(s) of the operation of the device,
b) for the duration of 2 000 h, and
c) at power
...

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