IEC TR 62627-03-04:2013

Fibre optic interconecting devices and passive components - Part 03-04: Reliability - Guideline for high power reliability of passive optical components

IEC/TR 62627-03-04:2013(E) which is a technical report, is a guideline for a procedure to evaluate the reliability of passive optical components under high power conditions. This guideline is one example to which the test results of IEC/TR 62627-03-02 and IEC/TR 62627-03-03 may apply. Keywords: reliability of passive optical components under high power conditions

General Information

• Status: Published
• Publication Date: 14-Oct-2013
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: SC 86B - Fibre optic interconnecting devices and passive components
• Current Stage: PPUB - Publication issued
• Start Date: 31-Jan-2014
• Completion Date: 15-Oct-2013

Standards Content (Sample)

IEC/TR 62627-03-04 ®
Edition 1.0 2013-10
TECHNICAL
REPORT
Fibre optic interconecting devices and passive components –
Part 03-04: Reliability – Guideline for high power reliability of passive optical
components
IEC/TR 62627-03-04:2013(E)
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IEC/TR 62627-03-04 ®
Edition 1.0 2013-10
TECHNICAL
REPORT
Fibre optic interconecting devices and passive components –

Part 03-04: Reliability – Guideline for high power reliability of passive optical

components
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
P
ICS 33.180.20 ISBN 978-2-8322-1160-1

– 2 – TR 62627-03-04 © IEC:2013(E)
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Generic information . 6
4 Procedures for confirmation of high power reliability . 7
5 Risk analysis under high power conditions . 7
5.1 Example of risk under high power conditions. 7
5.2 Preparation of risk analysis table . 8
5.3 Estimation of failure modes and determination of test conditions . 9
6 Step-stress test . 9
6.1 General . 9
6.2 Test set-up . 9
6.3 Test condition . 10
6.3.1 Duration time of step-stress test . 10
6.3.2 Test temperature . 10
6.3.3 Pass/fail criteria . 10
6.3.4 Performance monitoring . 10
6.3.5 Test wavelengths of light source . 10
6.3.6 Test power. 11
6.3.7 Sample size . 11
6.3.8 Coherency of light source . 11
7 Analysis of step-stress test result . 11
7.1 Estimate and identify the failure mechanism . 11
7.2 Estimate the maximum input power for guaranteeing long-term reliability . 11
8 Long-term test . 12
9 Reliability under high power conditions . 12
10 Test report . 13
Annex A (informative) Examples of high power risk analysis table for optical passive
components . 14

Figure 1 – Test set-up of high power step-stress test (example). 10

Table 1 – Typical risks of materials on high power input condition . 8
Table 2 – Format of high power risk analysis table . 9
Table A.1 – High power risk analysis table for metal-doped, fibre plug-style fixed
optical attenuators . 14
Table A.2 – High power risk analysis table for in-line optical isolators . 14
Table A.3 – High power risk analysis table for planer waveguide type optical splitters . 15

TR 62627-03-04 © IEC:2013(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONECTING DEVICES
AND PASSIVE COMPONENTS –
Part 03-04: Reliability –
Guideline for high power reliability of passive optical components

FOREWORD
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The main task of IEC technical committees is to prepare International Standards. However, a
technical committee may propose the publication of a technical report when it has collected
data of a different kind from that which is normally published as an International Standard, for
example "state of the art".
IEC/TR 62627-03-04, which is a technical report, has been prepared by subcommittee 86B:
Fibre optic interconnecting devices and passive optical components, of IEC technical
committee 86: Fibre optics.
– 4 – TR 62627-03-04 © IEC:2013(E)
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
86B/3641/DTR 86B/3676/RVC
Full information on the voting for the approval of this technical report can be found in the
report on voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all the parts in the IEC 62627 series, published under the general title Fibre optic
interconnecting devices and passive components can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended
A bilingual version of this publication may be issued at a later date.

TR 62627-03-04 © IEC:2013(E) – 5 –
INTRODUCTION
Since 2000, the optical power in transmission systems has increased in conjunction with the
increase in the number of channels for DWDM systems, with the deployment of RAMAN
amplifiers and the application of optical amplifiers.
Several technical reports have been published on failure mode analysis, life-time estimation
by accelerated aging tests, and other issues for passive optical components.
The long-term reliability for passive optical components is generally evaluated by accelerated
aging tests such as a high temperature test, a damp heat test and a temperature cycling test.
These tests are standardized and are included in reliability qualification test documents.
Although the failure mode for passive optical components under high power conditions has
not been clarified, one technical report was published for specific passive optical components
(IEC/TR 62627-03-02), and a technical report on high power reliability testing for metal doped
fibre plug-style optical attenuators was proposed.
This technical report is prepared based on the knowledge contained within these two technical
reports.
– 6 – TR 62627-03-04 © IEC:2013(E)
FIBRE OPTIC INTERCONECTING DEVICES
AND PASSIVE COMPONENTS –
Part 03-04: Reliability –
Guideline for high power reliability of passive optical components

1 Scope
This part of IEC 62627, which is a technical report, is a guideline for a procedure to evaluate
the reliability of passive optical components under high power conditions. This guideline is
one example to which the test results of IEC/TR 62627-03-02 and IEC/TR 62627-03-03 may
apply.
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 60825-1, Safety of laser products – Part 1: Equipment classification and requirements
IEC 61300-2-14, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-14: Tests – High optical power
IEC 6
...