IEC 61753-081-06:2023

IEC 61753-081-06 ®
Edition 1.0 2023-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Performance
standard –
Part 081-06: Non-connectorized single-mode fibre optic middle-scale 1 × N
DWDM devices for category OP+ – Extended outdoor protected environment

Dispositifs d'interconnexion et composants passifs fibroniques – Norme de
performance –
Partie 081-06: Dispositifs DWDM 1 × N de milieu d'échelle fibroniques
unimodaux, non connectorisés, pour catégorie OP+ – Environnement extérieur
protégé étendu
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IEC 61753-081-06 ®
Edition 1.0 2023-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Performance

standard –
Part 081-06: Non-connectorized single-mode fibre optic middle-scale 1 × N

DWDM devices for category OP+ – Extended outdoor protected environment

Dispositifs d'interconnexion et composants passifs fibroniques – Norme de

performance –
Partie 081-06: Dispositifs DWDM 1 × N de milieu d'échelle fibroniques

unimodaux, non connectorisés, pour catégorie OP+ – Environnement extérieur

protégé étendu
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.10  ISBN 978-2-8322-7845-1

– 2 – IEC 61753-081-06:2023 © IEC 2023
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 7
4 Test . 7
5 Test report . 8
6 Performance requirements. 8
6.1 Reference components . 8
6.2 Dimensions . 8
6.3 Sample size . 8
6.4 Test details and requirements . 8
Annex A (normative) Sample size . 17
Bibliography . 18

Table 1 – Single-mode spectral bands . 7
Table 2 – Test details and requirements for type A (Gaussian passband profile) . 8
Table 3 – Test details and requirements for type B (Flat-top passband profile) . 11
Table 4 – Environmental test for all types . 13
Table A.1 – Sample size . 17

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
PERFORMANCE STANDARD –
Part 081-06: Non-connectorized single-mode fibre optic
middle-scale 1 × N DWDM devices for category OP+ –
Extended outdoor protected 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
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Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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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
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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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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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 61753-081-06 has been prepared by subcommittee 86B: Fibre optic interconnecting
devices and passive components, of IEC technical committee 86: Fibre optics. It is an
International Standard.
– 4 – IEC 61753-081-06:2023 © IEC 2023
The text of this International Standard is based on the following documents:
Draft Report on voting
86B/4804/FDIS 86B/4822/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts of 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 document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
PERFORMANCE STANDARD –
Part 081-06: Non-connectorized single-mode fibre optic
middle-scale 1 × N DWDM devices for category OP+ –
Extended outdoor protected environment

1 Scope
This part of IEC 61753 contains the minimum initial test and measurement requirements and
severities which a fibre optic middle-scale 1 × N (16 ≤ N ≤ 64) DWDM (dense wavelength
division multiplexing) arrayed waveguide grating device with channel spacing of 50 GHz,
100 GHz or 200 GHz satisfies in order to be categorized as meeting the requirements of
category OP+ (extended outdoor protected environment). The requirements are given for the
DWDM devices with Gaussian passband profile and flat-top passband profile. The requirements
exclude the devices with dynamic electrical temperature control.
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 60793-2-50, Optical fibres – Part 2-50: Product specifications – Sectional specification for
class B single-mode fibres
IEC 60794-2-50, Optical fibre cables – Part 2-50: Indoor cables – Family specification for
simplex and duplex cables for use in terminated cable assemblies
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 or cable retention
IEC 61300-2-5, Fibre optic2 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 61300-2-14, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-14: Tests – High optical power

– 6 – IEC 61753-081-06:2023 © IEC 2023
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
IEC 61300-2-21, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-21: Tests – Composite temperature/humidity cyclic test
IEC 61300-2-22, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-22: Tests – Change of temperature
IEC 61300-2-26, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-26: Tests – Salt mist
IEC 61300-2-27, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-27: Tests – Dust – Laminar flow
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
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 61300-3-6, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-6: Examinations and measurements – Return loss
IEC 61300-3-20, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-20: Examinations and measurements – Directivity of fibre
optic branching devices
IEC 61300-3-28, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-28: Examinations and measurements – Transient loss
IEC 61300-3-29, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-29: Examinations and measurements – Spectral transfer
characteristics of DWDM devices
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
IEC 61300-3-38, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-38: Examinations and measurements – Group delay,
chromatic dispersion and phase ripple
IEC 61753-1, Fibre optic interconnecting devices and passive components – Performance
standard – Part 1: General and guidance
IEC 61753-081-02, Fibre optic interconnecting devices and passive components – Performance
standard – Part 081-02: Non-connectorized single-mode fibre optic middle-scale 1 × N DWDM
devices for category C – Controlled environments
IEC 62074-1, Fibre optic interconnecting devices and passive components – Fibre optic WDM
devices – Part 1: Generic specification

IEC TS 62627-09, Fibre optic interconnecting devices and passive components – Vocabulary
for passive optical devices
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61753-081-02,
IEC 62074-1 and IEC TS 62627-09, apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
4 Test
Unless otherwise specified, all test methods shall be in accordance with the IEC 61300 series.
The samples shall be terminated onto single-mode fibres as per IEC 60793-2-50 category
B‑652.B, B-652.D or B-657 on either coated fibres (primary and secondary) or reinforced cable
format as per IEC 60794-2-50. DWDM devices used for the test are intended to be previously
unstressed new samples but may also be selected from previously used samples, if desired. All
measurements shall be carried out at the standard atmospheric condition defined in
IEC 61300‑1, unless otherwise stated. If the device is provided with temperature control, this
shall be set at the set-point specified by the manufacturer.
The requirements apply to every combination of input and output port.
All tests shall be carried out to validate performance over the required operating wavelength
range. As a result, single or multiple spectral bands may be chosen for the qualification and
differing target specifications may be assigned to each spectral band.
Table 1 is intended to provide guidance on the wavelength ranges of the various spectral bands.
It is not intended for specification. Values of operating wavelength used in performance
verification shall be defined in the manufacturer’s specification.
Table 1 – Single-mode spectral bands
Band Descriptor Range
nm
O-band Original 1 260 to 1 360
E-band Extended 1 360 to 1 460
S-band Short wavelength 1 460 to 1 530
C-band Conventional 1 530 to 1 565
L-band Long wavelength 1 565 to 1 625
U-band Ultralong wavelength 1 625 to 1 675

___________
Reproduced from ITU-T G-series Recommendations – Supplement 39, with the permission of ITU-T.

– 8 – IEC 61753-081-06:2023 © IEC 2023
5 Test report
Fully documented test reports and supporting evidence shall be prepared and be available for
inspection as evidence that the tests have been carried out and complied with.
6 Performance requirements
6.1 Reference components
The testing for these devices does not require the use of reference components.
6.2 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.
6.3 Sample size
Sample sizes are defined in Table A.1 of Annex A.
6.4 Test details and requirements
The requirements are given only for pigtailed DWDM devices. For connectorized components,
the connector performances shall be in compliance with IEC 61753-1.
The minimum length of fibre or cable of 1,0 m per port on each pigtailed side shall be used for
all tests.
Test details and minimum requirements for category OP+ is shown in Table 2, Table 3 and
Table 4.
Table 2 – Test details and requirements for type A (Gaussian passband profile)
No Tests Requirements Details
1A Number of 16 ≤ N ≤ 64 Operating ITU-T grid (ITU-T Recommendation
channels: N wavelength: G.694.1) or custom design
NOTE Design information (not test item)
2A Channel Channel central Channel central ITU-T grid (ITU-T Recommendation
frequency range frequency frequency: G.694.1) or custom design
± 0,125 × ∆f where ∆f is
NOTE Design information (not test item)
the channel spacing
Attenuation ≤ 6,0 dB Launch fibre
3A ≥ 2,0 m
(insertion loss) (channel spacing with length:
50 GHz)
IEC 61300-3-29 Measurement
≤ 0,2 dB
≤ 4,5 dB
uncertainty:
(channel spacing with
NOTE The attenuation (insertion loss) is
100 GHz, 200 GHz)
determined as the maximum value
Maximum allowable
over all states of polarization.
attenuation (insertion
loss) over the channel
frequency range.
4A Channel non- ≤ 1,5 dB Launch fibre ≥ 2,0 m
uniformity length:
Maximum allowable
channel non-uniformity
IEC 61300-3-29 Measurement ≤ 0,2 dB
of attenuation. uncertainty:
NOTE The channel non-uniformity is
determined as the maximum value
over all states of polarization.

No Tests Requirements Details
5A 1 dB passband ≥ 0,25 × ∆f where ∆f is Launch fibre ≥ 2,0 m
width the channel spacing. length:
IEC 61300-3-29 Minimum allowable 1 dB Measurement ≤ 0,01 × ∆f
passband width (centred uncertainty:
at the channel
NOTE The 1 dB passband width is
frequency).
determined as the minimum value
over all states of polarization.
6A 3 dB passband ≥ 0,4 × ∆f where ∆f is Launch fibre ≥ 2,0 m
width the channel spacing length:
(channel spacing with
IEC 61300-3-29 Measurement ≤ 0,01 × ∆f
200 GHz).
uncertainty:
≥ 0,5 × ∆f where ∆f is
NOTE The 3 dB passband width is
the channel spacing
determined as the minimum value
(channel spacing with
over all states of polarization.
50 GHz, 100 GHz).
Minimum allowable 3 dB
passband width (centred
at the channel
frequency).
7A Passband ripple ≤ 1,5 dB Launch fibre ≥ 2,0 m
length:
Maximum attenuation
IEC 61300-3-29
variation within the Measurement ≤ 0,2 dB
channel frequency uncertainty:
range.
NOTE The passband ripple is determined
as the maximum value over all
states of polarization.
8A Adjacent ≤ –25 dB Launch fibre ≥ 2,0 m
channel length:
Maximum allowable
crosstalk
adjacent channel Measurement ≤ 1 dB
IEC 61300-3-29 crosstalk over the uncertainty:
channel frequency
NOTE The adjacent channel crosstalk is
range.
specified only for demultiplexer.
The adjacent channel crosstalk is
determined as the maximum value
over all states of polarization.
9A Non-adjacent ≤ –30 dB Launch fibre ≥ 2,0 m
channel length:
Maximum allowable
crosstalk
non-adjacent channel Measurement ≤ 1 dB
IEC 61300-3-29 crosstalk over the
uncertainty:
channel frequency
NOTE The non-adjacent channel crosstalk
range.
is specified only for demultiplexer.
The non-adjacent channel crosstalk
is determined as the maximum
value over all states of polarization.
10A Total channel ≤ –20 dB Launch fibre ≥ 2,0 m
crosstalk length:
Maximum allowable
IEC 61300-3-29 total channel crosstalk
Measurement ≤ 1 dB
value.
uncertainty:
The total channel crosstalk is
NOTE
specified only for demultiplexer.
The total channel crosstalk is
determined as the maximum value
over all states of polarization.
11A Polarization ≤ 0,75 dB Launch fibre ≥ 2,0 m
dependent loss length:
Maximum allowable
(PDL)
PDL over the channel
Measurement ≤ 0,10 dB
IEC 61300-3-2 frequency range. uncertainty:
NOTE The allowable PDL combination
applies to all combination of input
and output ports.
– 10 – IEC 61753-081-06:2023 © IEC 2023
No Tests Requirements Details
12A Polarization ≤ 0,5 ps Launch fibre ≥ 2,0 m
mode dispersion length:
Maximum allowable
(PMD)
PMD over the channel Measurement ≤ 0,1 ps
IEC 61300-3-32 frequency range. uncertainty:
NOTE The allowable PMD combination
applies to all combination of input
and output ports.
13A Chromatic ≤ 20 ps/nm Launch fibre ≥ 2,0 m
dispersion (CD) length:
Maximum allowable CD
IEC 61300-3-38 over the channel Measurement ≤ 1 ps/nm
frequency range uncertainty:
(absolute value).
NOTE The allowable CD combination
applies to all combination of input
and output ports.
14A Return loss ≥ 40 dB Launch fibre ≥ 2,0 m
length:
IEC 61300-3-6 Minimum allowable
return loss. Measurement ≤ 1 dB
uncertainty:
NOTE All ports not under test are
terminated to avoid unwanted
reflections contributing to the
measurement.
15A Directivity ≥ 40 dB Launch fibre ≥ 2,0 m
length:
Minimum allowable
IEC 61300-3-20
directivity. Measurement ≤ 1 dB
uncertainty:
NOTE All ports not under test are
terminated to avoid unwanted
reflections contributing to the
measurement.
The directivity is measured
between any pair of input or output
ports.
16A High optical Before and after the Optical power: 300 mW
power test, the limits of
Wavelength: 1 550 nm
attenuation and return
IEC 61300-2-14
loss of test 3A and 14A Duration of the 30 min
optical power
shall be met.
exposure:
During the test, the
change in attenuation is
Temperature: 75 °C ± 2 °C
monitored. During and
+
after the test, the
Relative humidity:
93 % %
−
change in attenuation
(insertion loss) shall be
Input port: Single input port
within ±1,0 dB of the
Measurement ≤ 0,2 dB for insertion loss before
attenuation (insertion
uncertainty: and after the test (test 3A)
loss) at the starting to
input high optical power
≤ 1 dB for return loss before and
after the DUT
after the test (test 14A)
temperature is stable in
≤ 0,05 dB for insertion loss change
the environmental
measurement during the test
chamber. After the test,
the change in
≤ 1 dB for return loss measurement
attenuation (insertion
during the test
loss) shall be. within
If the device under test (DUT) is
±1,0 dB of that before
hermetically seal-packaged, it is
the test (test 3A/B).
not necessary to control the test
During the test, the
humidity.
return loss is monitored.
The return loss shall be
within the value defined
at test 14A.
Table 3 – Test details and requirements for type B (Flat-top passband profile)
No Tests Requirements Details
1B Number of 16 ≤ N ≤ 64 Operating ITU-T grid (ITU-T Recommendation
channels: N wavelength: G.694.1) or custom design.
NOTE Design information (not test item).
2B Channel Channel central Channel central ITU-T grid (ITU-T Recommendation
frequency range frequency frequency: G.694.1) or custom design.
± 0,125 × ∆f where ∆f is
NOTE Design information (not test item).
the channel spacing.
3B Attenuation ≤ 6,7 dB Launch fibre ≥ 2,0 m
(insertion loss) (channel spacing with length:
50 GHz)
IEC 61300-3-29
Measurement ≤ 0,2 dB
≤ 6,0 dB
uncertainty:
(channel spacing with
NOTE The attenuation (insertion loss) is
100 GHz, 200 GHz)
determined as the maximum value
Maximum allowable
over all states of polarization.
attenuation (insertion
loss) over the channel
frequency range.
4B Channel non- ≤ 1,5 dB Launch fibre ≥ 2,0 m
uniformity length:
Maximum allowable
IEC 61300-3-29 channel non-uniformity Measurement ≤ 0,2 dB
of attenuation. uncertainty:
NOTE The channel non-uniformity is
determined as the maximum value
over all states of polarization.
5B 1 dB passband ≥ 0,4 × Δf where Δf is Launch fibre ≥ 2,0 m
width the channel spacing length:
(channel spacing with
IEC 61300-3-29 Measurement ≤ 0,01 × ∆f
50 GHz, 100 GHz,
uncertainty:
200 GHz).
NOTE The 1 dB passband width is
Minimum allowable 1 dB
determined as the minimum value
passband width (centred
over all states of polarization.
at the channel
frequency).
3 dB passband Launch fibre
6B ≥ 0,5 × ∆f where ∆f is ≥ 2,0 m
width the channel spacing. length:
IEC 61300-3-29 Minimum allowable 3 dB Measurement ≤ 0,01 × ∆f
passband width (centred
uncertainty:
at the channel
NOTE The 3 dB passband width is
frequency).
determined as the minimum value
over all states of polarization.
7B Passband ripple ≤ 0,5 dB Launch fibre ≥ 2,0 m
length:
IEC 61300-3-29 Maximum attenuation
variation within the Measurement ≤ 0,2 dB
channel frequency
uncertainty:
range.
NOTE The passband ripple is determined
as the maximum value over all
states of polarization.
8B Adjacent ≤ –25 dB Launch fibre ≥ 2,0 m
channel
length:
Maximum allowable
crosstalk
adjacent channel Measurement ≤ 1 dB
IEC 61300-3-29 crosstalk over the uncertainty:
channel frequency
NOTE The adjacent channel crosstalk is
range.
specified only for demultiplexer.
The adjacent channel crosstalk is
determined as the maximum value
over all states of polarization.

– 12 – IEC 61753-081-06:2023 © IEC 2023
No Tests Requirements Details
9B Non-adjacent ≤ –30 dB Launch fibre ≥ 2,0 m
channel length:
Maximum allowable
crosstalk
non-adjacent channel Measurement ≤ 1 dB
IEC 61300-3-29 crosstalk over the uncertainty:
channel frequency
NOTE The non-adjacent channel crosstalk
range.
is specified only for demultiplexer.
The non-adjacent channel crosstalk
is determined as the maximum
value over all states of polarization.
10B Total channel ≤ –20 dB Launch fibre ≥ 2,0 m
crosstalk length:
Maximum allowable
IEC 61300-3-29 total channel crosstalk Measurement
≤ 1 dB
value.
uncertainty:
NOTE The total channel crosstalk is
specified only for demultiplexer.
The total channel crosstalk is
determined as the maximum value
over all states of polarization.
11B Polarization ≤ 0,75 dB Launch fibre ≥ 2,0 m
dependent loss length:
Maximum allowable
(PDL)
PDL over the channel
Measurement ≤ 0,10 dB
IEC 61300-3-2 frequency range. uncertainty:
NOTE The allowable PDL combination
applies to all combination of input
and output ports.
12B Polarization ≤ 0,5 ps Launch fibre ≥ 2,0 m
mode dispersion length:
Maximum allowable
(PMD)
PMD over the channel
Measurement ≤ 0,1 ps
IEC 61300-3-32 frequency range.
uncertainty:
NOTE The allowable PMD combination
applies to all combination of input
and output ports.
13B Chromatic ≤ 20 ps/nm Launch fibre ≥ 2,0 m
dispersion (CD) length:
Maximum allowable CD
IEC 61300-3-38 over the channel
Measurement ≤ 1 ps/nm
frequency range
uncertainty:
(absolute value).
NOTE The allowable CD combination
applies to all combination of input
and output ports.
14B Return loss ≥ 40 dB Launch fibre ≥ 2,0 m
length:
IEC 61300-3-6 Minimum allowable
return loss. Measurement ≤ 1 dB
uncertainty:
NOTE All ports not under test are
terminated to avoid unwanted
reflections contributing to the
measurement.
15B Directivity ≥ 40 dB Launch fibre ≥ 2,0 m
length:
IEC 61300-3-20 Minimum allowable
directivity.
Measurement ≤ 1 dB
uncertainty:
All ports not under test are
NOTE
terminated to avoid unwanted
reflections contributing to the
measurement.
The directivity is measured
between any pair of input or output
ports.
No Tests Requirements Details
16B High optical Before and after the Optical power: 300 mW
power test, the limits of
Wavelength: 1 550 nm
attenuation and return
IEC 61300-2-14
loss of test 3B and 14B
Duration of the 30 min
shall be met.
optical power
exposure:
During the test, the
change in attenuation is
Temperature: 75 °C ± 2 °C
monitored. During and
after the test, the
+
Relative humidity:
change in attenuation 93 % %
−
(insertion loss) shall be
within ±1,0 dB of the
Input port: Single input port
attenuation (insertion
Measurement ≤ 0,2 dB for insertion loss before
loss) at the starting to
uncertainty: and after the test (test 3B)
input high optical power
after the DUT
≤ 1 dB for return loss before and
temperature is stable in
after the test (test 14B)
the environmental
chamber. After the test,
≤ 0,05 dB for insertion loss change
the change in
measurement during the test
attenuation (insertion
≤ 1 dB for return loss measurement
loss) shall be. within
during the test
±1,0 dB of that before
the test (test 3A/B).
If the DUT is hermetically seal-
packaged, it is not necessary to
During the test, the
control the test humidity.
return loss is monitored.
The return loss shall be
within the value defined
at test 14B.
Table 4 – Environmental test for all types
No Tests Requirements Details
17 Cold Before and after the test, the Temperature: –40 °C ± 2 °C
limits of attenuation
IEC 61300-2-17 Duration of exposure: 96 h
(insertion loss) and return
loss of tests 3A (3B) and
14A (14B) shall be met.
The change in attenuation
(insertion loss) after the test
shall be within ±0,5 dB of
the initial value.
No visual defects inspected
by unaided naked eyes.
18 Dry heat Before and after the test, the Temperature: +75 °C ± 2 °C
limits of attenuation a
IEC 61300-2-18
Duration of exposure: 96 h
(insertion loss) and return
loss of test 3A (3B) and 14A
(14B) shall be met.
The change in attenuation
(insertion loss) after the test
shall be within ±0,5 dB of the
initial value.
No visual defects inspected
by unaided naked eyes.
– 14 – IEC 61753-081-06:2023 © IEC 2023
No Tests Requirements Details
19 Composite Before and after the test, the Temperature:
−10 °C ± 2 °C to +65 °C ±
temperature limits of attenuation 2 °C
humidity cyclic (insertion loss) and return
Relative humidity: 93 % ± 3 % at the
test loss of test 3A (3B) and 14A
maximum temperature
(14B) shall be met.
IEC 61300-2-21
Duration at extreme 3 h
During the test, the change
temperature:
in attenuation (insertion
loss) is monitored. During
Number of cycles: 10
and after the test, the
change in attenuation shall
be within ± 0,5 dB of the
initial value.
No visual defects inspected
by unaided naked eyes.
20 Change of Before and after the test, the High temperature:
+75 °C ± 2 °C
temperature limits of attenuation
Low temperature: –40 °C ± 2 °C
(insertion loss) and return
IEC 61300-2-22
loss of tests 3A (3B) and Number of cycles: 12
14A (14B) shall be met.
Duration at extreme 60 min
During the test, the change
temperature:
in attenuation (insertion
Rate of change: 1 °C/min
loss) is monitored. During
and after the test, the
change in attenuation shall
be within ±0,5 dB of the
initial value.
No visual defects inspected
by unaided naked eyes.
21 Vibration Before and after the test, the Frequency range: 10 Hz to 55 Hz
(sinusoidal) limits of attenuation
Number of axes: 3 mutually perpendicular
(insertion loss) and return
IEC 61300-2-1 axes
loss of tests 3A (3B) and
14A (14B) shall be met. Number of sweeps: 15 sweeps per axis
During the test, the change
Rate of frequency 1 octave/min
in attenuation (transient change:
loss) is monitored according
Amplitude: 0,75 mm
to IEC 61300-3-28. During
and after the test, the
change in attenuation shall
be within ±0,5 dB of the
initial value.
No visual defects inspected
by unaided naked eyes.
22 Fibre or cable Before and after the test, the Magnitude and (10 ± 1) N at 5 N/s for
retention limits of attenuation rate of application: cables
(insertion loss) and return
IEC 61300-2-4
(5,0 ± 0,5) N at 0,5 N/s for
loss of tests 3A (3B) and
buffered fibres
14A (14B) shall be met.
(2,0 ± 0,2) N at 0,5 N/s for
The change in attenuation
primary coated fibres
(insertion loss) after the test
shall be within ±0,5 dB of the
Duration of the test: 60 s
initial value.
Point of application of 0,3 m from the exit point
No visual defects inspected
tensile load: of the fibre/cable from the
by unaided naked eyes.
DUT.
Method of mounting: The sample shall be
rigidly mounted such that
the load is only applied to
the fibre/cable retention
mechanism.
No Tests Requirements Details
23 Torsion Before and after the test, the Load: (5 ± 0,5) N for cables
limits of attenuation
IEC 61300-2-5 (2,0 ± 0,2) N for primary
(insertion loss) and return
coated and buffered fibres
loss of tests 3A (3B) and
14A (14B) shall be met. Cycle: ±180°
The change in attenuation
Number of cycles: 10
(insertion loss) after the test
Fibre/cable clamping 25 cm ± 5 cm
shall be within ±0,5 dB of the
distance:
initial value.
No visual defects inspected
by unaided naked eyes.
24 Shock Before and after the test, the Acceleration: Components or module
limits of attenuation mass:
IEC 61300-2-9
(insertion loss) and return
– ≤ 0,125 kg: 5 000 m/s
loss of test 3A (3B) and 14A
(14B) shall be met. – 0,125 kg < module
mass ≤ 0,225 kg:
The change in attenuation
2 000 m/s
(insertion loss) after the test
shall be within ±0,5 dB of the
– 0,225 kg < module
initial value.
mass ≤1 kg: 500 m/s
No visual defects inspected
Wave form: Half sine pulse
by unaided naked eyes.
Duration:
5 000 m/s : 1 ms
2 000 m/s : 6 ms
500 m/s : 11 ms
Axis: 3 mutually perpendicular
axes
Number of shocks: 2 shocks per axis and per
direction of axis,
12 shocks in total
Sample mounting: If the product is normally
mounted in a shock
resistant mounting, then it
shall be tested in this
configuration.
25 Flexing of the Before and after the test, the Load: 5 N
strain relief of limits of attenuation
Cycle: ±90°
fibre optic (insertion loss) and return
a
loss of tests 3A (3B) and Number of cycles: 50
devices
14A (14B) shall be met.
IEC 61300-2-44
During the test, the change
in attenuation (transient
loss) is monitored according
to IEC 61300-3-28. During
and after the test, the
change in attenuation shall
be within ±0,5 dB of the
initial value.
No visual defects inspected
by unaided naked eyes.
26 Dust Before and after the test, the Dust type: Talc
limits of attenuation
IEC 61300-2-27 Particle size: d <150 µm
(insertion loss) and return
loss of tests 3A (3B) and Duration: 10 min
14A (14B) shall be met.
3 3
Dust concentration:
10,6 g/m ± 7,1 g/m
The change in attenuation
(insertion loss) after the test
shall be within ±0,5 dB of the
initial value.
– 16 – IEC 61753-081-06:2023 © IEC 2023
No Tests Requirements Details
27 Salt mist Before and after the test, the Salt solution: 5 % NaCl (pH: between
limits of attenuation 6,5 and 7,2)
IEC 61300-2-26
(insertion loss) and return
Temperature: 35 °C ± 2 °C
loss of test 3A (3B) and 14A
(14B) shall be met. Humidity: At least 85 %
The change in attenuation Duration: 96 h
(insertion loss) after the test

shall be within ±0,5 dB of the
initial value.
No visual defects inspected
by unaided naked eyes after
the sample is cleaned.
a
"Flexing of the strain relief of fibre optic devices" shall be applicable to passive optical components with a
strain relief boot attached to the component. The test is not applicable for components without strain relief
boot.
Annex A
(normative)
Sample size
Suggested sample sizes for the tests are listed in Table A.1.
Table A.1 – Sample size
No Tests Sample size
a
Number of channels N/A
1A/1B
a
Channel frequency range N/A
2A/2B
3A/3B Attenuation (insertion loss) 12
4A/4B Channel non-uniformity 12
5A/5B 1 dB passband width 12
6A/6B 3 dB passband width 12
7A/7B Passband ripple 12
8A/8B Adjacent channel crosstalk 12
9A/9B Non-adjacent channel crosstalk 12
10A/10B Total channel crosstalk 12
11A/11B Polarization dependent loss (PDL) 12
12A/12B Polarization mode dispersion (PMD) 12
13A/13B Chromatic dispersion (CD) 12
14A/14B Return loss 12
15A/15B Directivity 12
16A/16B High optical power 12
17 Cold 4
18 Dry heat 4
19 Composite temperature humidity cyclic test 4
20 Change of temperature 4
21 Vibration (sinusoidal) 4
22 Fibre or cable retention 4
23 Torsion 4
24 Shock 4
25 Flexing of the strain relief of fibre optic devices 4
26 Dust 4
27 Salt mist 4
a
For design information (not test item).

– 18 – IEC 61753-081-06:2023 © IEC 2023
Bibliography
ITU-T Recommendation G.671, Transmission characteristics of optical components and
subsystems
ITU-T Recommendation G series – Supplement 39, Optical system design and engineering
considerations
ITU-T Recommendation G.692, Optical interfaces for multichannel systems with optical
amplifiers
ITU-T Recommendation G.694.1, Spectral grids for WDM applications: DWDM frequency grid

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– 20 – IEC 61753-081-06:2023 © IEC 2023
SOMMAIRE
AVANT-PROPOS . 21
1 Domaine d'application .
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