IEC 61753-381-6:2016

Fibre optic interconnecting devices and passive components - Performance standard - Part 381-6: Cyclic arrayed waveguide grating - Category O (uncontrolled environment)

IEC 61753-381-6:2016 contains the minimum initial test and measurement requirements and severities which a Gaussian-passband-profile cyclic arrayed waveguide grating (AWG) for single bidirectional transmission systems satisfies in order to be categorised as meeting the requirements of IEC 61753-1 for category O (uncontrolled environment). This standard pertains to wavelength division multiplexing (WDM) network with multiple spectral-band usage. This standard covers the requirements of cyclic AWG devices with free spectral range (FSR) characteristics to ensure multiple spectral bands transmission performance. The requirement covers devices with single-mode non-connectorized pigtails and no electric circuit board. Keywords: Keywords: Gaussian-passband-profile cyclic arrayed waveguide grating (AWG), wavelength division multiplexing (WDM), category O (uncontrolled environment)

Dispositifs d'interconnexion et composants passifs à fibres optiques - Norme de performance - Partie 381-6: Réseau sélectif planaire cyclique - Catégorie O (environnement non contrôlé)

L'IEC 61753-381-6:2016 contient les exigences minimales et les sévérités initiales d'essais et de mesures auxquelles satisfait un réseau sélectif planaire (AWG) cyclique de profil passe-bande gaussien pour systèmes de transmission bidirectionnels uniques, afin d'être considéré conforme aux exigences de l'IEC 61753-1 pour la catégorie O (environnement non contrôlé). La présente norme se rapporte aux réseaux multiplexés par répartition en longueur d'onde (WDM) avec utilisation de plusieurs bandes spectrales. La présente norme couvre les exigences des dispositifs AWG cycliques avec des caractéristiques de plage spectrale libre (FSR) garantissant des performances de transmissions sur plusieurs bandes spectrales. L'exigence couvre les dispositifs avec des fibres amorces unimodales non connectorisées et sans circuit électrique. Mots clés: réseau sélectif planaire (AWG) cyclique de profil passe-bande gaussien, réseaux multiplexés par répartition en longueur d'onde (WDM), catégorie O (environnement non contrôlé)

General Information

• Status: Published
• Publication Date: 04-Jan-2016
• ICS: 29.240.20 - Power transmission and distribution lines
• ICS: 33.180.20 - Fibre optic interconnecting devices
• ICS: 33.200 - Telecontrol. Telemetering
• 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: 05-Jan-2016
• Completion Date: 31-Jan-2016

Overview

IEC 61753-381-6:2016 is an international standard published by the International Electrotechnical Commission (IEC) that specifies the performance requirements for cyclic arrayed waveguide grating (AWG) devices used in fibre optic interconnecting systems. This standard focuses on Category O environments, which are uncontrolled environments subject to varying environmental conditions. It defines the minimum initial test and measurement protocols that Gaussian-passband-profile cyclic AWGs must meet to ensure reliable operation in wavelength division multiplexing (WDM) networks that support multiple spectral bands.

The standard covers cyclic AWG devices with characteristics for free spectral range (FSR) to enable transmission over multiple spectral bands while using single-mode non-connectorized pigtails without an electric circuit board. By complying with IEC 61753-381-6, manufacturers and users of cyclic AWG components in fibre optic systems can ensure performance consistency, durability under environmental stresses, and compatibility within broader WDM networks.

Keywords: cyclic arrayed waveguide grating, Gaussian-passband-profile, wavelength division multiplexing, WDM, Category O, uncontrolled environment, free spectral range, fibre optic interconnecting devices.

Key Topics

• Scope and Application: Defines the test and measurement requirements for cyclic AWGs used in bidirectional single-channel WDM transmission systems.
• Environmental Conditions: Targets Category O - uncontrolled environments, ensuring device robustness against thermal variations, humidity, vibration, shock, and mechanical stress.
• Test Procedures: Outlines initial performance tests including optical parameters such as return loss, insertion loss, polarization dependent loss (PDL), and spectral transfer characteristics.
• Performance Criteria: Specifies severities and pass/fail criteria to validate devices meet IEC 61753-1 general requirements for uncontrolled environments.
• Device Requirements: Applies to devices with single-mode non-connectorized pigtails and no embedded electronics, accommodating network components that require passive optical performance.
• Compatibility with ITU-T Recommendations: Ensures alignment with ITU-T G.692, G.694.1, and G.698.3 to guarantee cyclic AWG compatibility within DWDM and multiple spectral band systems.
• Standardized Terminology: Harmonizes terms referencing IEC 62074-1 and related IEC publications on fibre optics and WDM technologies.
• Testing Norms Referenced: Utilizes test procedures from IEC 61300 series for mechanical and environmental testing, reflecting industry best practices for fibre optic device quality assessment.

Applications

IEC 61753-381-6:2016 applies primarily to manufacturers, system designers, and quality assurance teams involved in the development, deployment, and maintenance of fibre optic networks employing wavelength division multiplexing technologies. Specific applications include:

• Optical Transport Networks (OTN): Deploying cyclic AWGs to multiplex/demultiplex multiple wavelength channels over single fibre links.
• DWDM Systems: Ensuring multi-spectral band transmission with reliable passive optical components.
• Fibre Optic Interconnects: Standardizing quality requirements for AWG modules used in passive optical networks (PON) or enterprise communication systems.
• Telecommunication Infrastructure: Application in uncontrolled environment installations such as outdoor cabinets, central offices without environmental controls, and customer premises equipment (CPE).
• Network Testing and Certification: Serving as a benchmark for certification of cyclic AWG components for compliance with international optical performance and environmental standards.
• Component Manufacturing: Guiding production line testing protocols and quality control measures to meet international expectations for device resilience and optical performance.

Related Standards

IEC 61753-381-6 is part of the IEC 61753 series which covers performance standards for fibre optic interconnecting devices and passive components. It is particularly related to:

• IEC 61753-1: The general performance standard defining environmental categories including Category O for uncontrolled environments.
• IEC 61753-021-6: Specifies performance requirements for Grade B/2 single-mode fibre optic connectors suitable for Category O environments.
• IEC 61300 Series: Contains basic test and measurement procedures for fibre optic components including aspects like vibration (IEC 61300-2-1), damp heat (IEC 61300-2-19), return loss (IEC 61300-3-6), and spectral characteristics (IEC 61300-3-29).
• IEC 62074-1: Provides generic specifications for fibre optic WDM devices.
• ITU-T G.692 & G.694.1: Defines optical interfaces and DWDM spectral grids applicable for cyclic AWG operation.
• ITU-T G.698.3: Covers multichannel DWDM applications with single-channel optical interfaces, providing compatibility references for cyclic AWGs.

Practical Value

Compliance with IEC 61753-381-6:2016 helps ensure that cyclic arrayed waveguide grating devices used in fibre optic networks deliver consistent optical performance under varying environmental conditions typical of uncontrolled installations. This enhances the reliability and longevity of optical components critical for high-capacity, multi-wavelength telecommunications networks, facilitating effective deployment of WDM systems in real-world scenarios while supporting global interoperability and quality assurance.

Standards Content (Sample)

IEC 61753-381-6 ®
Edition 1.0 2016-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Performance
standard –
Part 381-6: Cyclic arrayed waveguide grating – Category O (uncontrolled
environment)
Dispositifs d'interconnexion et composants passifs à fibres optiques – Norme
de performance –
Partie 381-6: Réseau sélectif planaire cyclique – Catégorie O (environnement
non contrôlé)
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IEC 61753-381-6 ®
Edition 1.0 2016-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Performance

standard –
Part 381-6: Cyclic arrayed waveguide grating – Category O (uncontrolled

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

de performance –
Partie 381-6: Réseau sélectif planaire cyclique – Catégorie O (environnement

non contrôlé)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.20 ISBN 978-2-8322-3097-8

– 2 – IEC 61753-381-6:2016 © IEC 2016
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Test conditions . 7
5 Test report . 8
6 Reference components . 8
7 Performance requirements. 8
7.1 Dimensions . 8
7.2 Test details and requirements . 8
Annex A (normative) Sequencing and grouping of tests . 15
Annex B (informative) General information on cyclic AWGs . 16
Annex C (informative) Channel frequency range and free spectral range . 18
Annex D (informative) Summary of differences between IEC 61753-081-2 and
IEC 61753-381-6 . 19
Bibliography . 20

Figure 1 – Illustration of cyclic AWGs . 7
Figure B.1 – Single bidirectional transmission with cyclic AWGs . 16
Figure B.2 − Reference diagram of ITU-T G.698.3 . 17
Figure C.1 − Description of channel frequency range and free spectral range . 18

Table 1 – Tests and requirements of optical performance parameters . 9
Table 2 – Environmental tests & mechanical tests . 12
Table A.1 – Sample size for each test . 15
Table D.1 – Summary of differences between IEC 61753-081-2 and IEC61753-381-6 . 19

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
PERFORMANCE STANDARD –
Part 381-6: Cyclic arrayed waveguide grating –
Category O (uncontrolled 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
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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 61753-381-6 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
The text of this standard is based on the following documents:
FDIS Report on voting
86B/3955/FDIS 86B/3970/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 – IEC 61753-381-6:2016 © IEC 2016
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.
Future standards in this series will carry the new general title as cited above. Titles of existing
standards in this series will be updated at the time of the next edition.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website 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.
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
PERFORMANCE STANDARD –
Part 381-6: Cyclic arrayed waveguide grating –
Category O (uncontrolled environment)

1 Scope
This part of IEC 61753 contains the minimum initial test and measurement requirements and
severities which a Gaussian-passband-profile cyclic arrayed waveguide grating (AWG) for
single bidirectional transmission systems satisfies in order to be categorised as meeting the
requirements of IEC 61753-1 for category O (uncontrolled environment). This standard
pertains to wavelength division multiplexing (WDM) network with multiple spectral-band usage.
This standard covers the requirements of cyclic AWG devices with free spectral range (FSR)
characteristics to ensure multiple spectral bands transmission performance. The requirement
covers devices with single-mode non-connectorized pigtails and no electric circuit board.
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 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 61300-2-5, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-5: Tests – Torsion
IEC 61300-2-9, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-9: Tests – Shock
IEC 61300-2-14, 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 61300-2-42, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-42: Tests – Static side load for strain relief
IEC 61300-2-44, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-44: Tests – Flexing of the strain relief of fibre optic
devices
– 6 – IEC 61753-381-6:2016 © IEC 2016
IEC 61300-2-48, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-48: Tests – Temperature-humidity cycling
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 61300-3-29, 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 61753-021-6, Fibre optic interconnecting devices and passive components performance
standard – Part 021-6: Grade B/2 single-mode fibre optic connectors for category O –
Uncontrolled environment
IEC 62074-1, Fibre optic interconnecting devices and passive components – Fibre optic WDM
devices – Part 1: Generic specification
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
ITU-T Recommendation G.698.3, Multichannel seeded DWDM applications with single-
channel optical interfaces
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 62074-1, as well as
the following apply.
3.1
cyclic arrayed waveguide grating
cyclic AWG
multi wavelength-selective branching device which can perform the function of a wavelength
multiplexer and/or demultiplexer with DWDM channel spacing
Note 1 to entry: The device has free spectral range (FSR) characteristics for operating in multiple spectral bands. In
the cyclic AWG, the wavelength emerging at the particular output port is spaced by an integer of the FSR as
illustrated in Figure 1. General information on cyclic AWGs is described in Annex B.

C-band L-band
FSR
Output
port 1
1 1
Ch Ch
C-band L-band
1 N 1 N
Ch Ch Ch Ch
C-band C-band L-band L-band
Common
port
FSR
Output
N N
Ch Ch
C-band L-band
port N
IEC
Figure 1 – Illustration of cyclic AWGs
Note 2 to entry: This note applies to the French language only.
3.2
free spectral range
FSR
difference between two adjacent operating wavelengths for a given input output path
Note 1 to entry: This note applies to the French language only.
3.3
wavelength division multiplexing
WDM
multiplexing in which several independent signals are allotted separate wavelengths for
transmission over a common optical transmission medium
Note 1 to entry: This note applies to the French language only.

3.4
dense WDM
DWDM
WDM device intended to operate for channel spacing equal to or less than 1 000 GHz
Note 1 to entry: This note applies to the French language only.
4 Test conditions
All test methods are in accordance with the IEC 61300 series. Each test defines the number
of samples to be evaluated. DWDM devices used for each 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 normal room conditions, unless otherwise stated. If
the device is provided with an active temperature control, this shall be set at the set-point
specified by the manufacturer.
All tests are to 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.
Cyclic-AWG
– 8 – IEC 61753-381-6:2016 © IEC 2016
5 Test report
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.
6 Reference components
The testing for DWDM devices does not require the use of reference components.
7 Performance requirements
7.1 Dimensions
Dimensions shall be in accordance with those given in appropriate manufacturers’ drawings.
7.2 Test details and requirements
Table 1 specifies the optical performance and related test methods for Gaussian passband
profile.
Table 2 defines the environmental and mechanical performance requirements and test
methods.
The operating wavelengths, unless otherwise specified, shall be in accordance with ITU
Recommendation G.692, G.694.1 and 698.3 (frequency spacing). Where devices with
wavelength spaced channels have to be considered the conversion should refer to vacuum
wavelength.
The value of "c" (speed of light in vacuum) that should be used for converting between frequency and
wavelength is 2,997 924 58 × 10 m/s.
Conformance to this standard requires demonstration of the ability to meet both the relevant
optical and the environmental parameters.
For connectorized components, the connector performances shall be in accordance with
IEC 61753-021-6.
Table 1 – Tests and requirements of optical performance parameters
No Tests Requirements Details
1 Number of channels: n 16 ≤ n ≤ 48 Operating ITU-T grid or custom design
wavelength:
NOTE Design information (not test
item)
2 Channel frequency Channel central Channel central ITU-T grid or custom design
range frequency ± 0,125 × ∆f frequency:
1) L-band
where ∆ f is the
channel spacing
Minimum channel spacing:
97,15 GHz
Minimum channel frequency:
186,143 THz
Maximum channel frequency:
190,709 05 THz
2) C-band
Minimum channel spacing: 100
GHz
Minimum channel frequency:
191,5 THz
Maximum channel frequency:
196,2 THz
NOTE Design information (not test
item)
3 Free spectral range 5 425,4 GHz Free spectral range NOTE Design information (not test
item)
4 Insertion loss ≤ 4,8 dB Launch fibre ≥ 2,0 m
length:
IEC 61300-3-29
Maximum allowable
insertion loss over the Measurement ±0,05 dB
channel frequency uncertainty
range
The insertion loss should be
determined as the worst case over all
states of polarisation.
5 Channel non-uniformity ≤ 1,0 dB (n ≤ 24) Launch fibre ≥ 2,0 m
length:
IEC 61300-3-29
≤ 1,5 dB (n > 24)
Measurement ±0,05 dB
Maximum allowable
uncertainty
channel non-uniformity
The channel non-uniformity should be
of insertion losses
determined as the worst case over all
states of polarisation.
6 1 dB band width Launch fibre
≥ 0,25 × ∆ f where ∆ f is ≥ 2,0 m
the channel spacing length:
IEC 61300-3-29
Minimum allowable Measurement
± 0,01 × ∆ f
1 dB band width uncertainty:
(centred at the channel
The 1 dB band width should be
frequency)
determined as the worst case over all
states of polarisation.
7 3 dB band width Launch fibre
≥ 0,5 × ∆ f where ∆ f is ≥ 2,0 m
the channel spacing length:
IEC 61300-3-29
Minimum allowable Measurement
± 0,01 × ∆ f
uncertainty:
3 dB band width
(centred at the channel
The 3 dB band width should be
frequency)
determined as the worst case over all
states of polarisation.
– 10 – IEC 61753-381-6:2016 © IEC 2016
No Tests Requirements Details
8 Passband ripple Launch fibre
≤ 1,5 dB ≥ 2,0 m
length:
IEC 61300-3-29
Maximum insertion loss
variation within the Measurement
±0,05 dB
channel frequency uncertainty:
range
The passband ripple should be
determined as the worst case over all
states of polarisation.
9 Adjacent channel Launch fibre
≤ –25 dB ≥ 2,0 m
crosstalk length:
Minimum allowable
IEC 61300-3-29
adjacent channel Measurement ±0,1 dB
crosstalk over the uncertainty:
channel frequency
The adjacent channel crosstalk is
range
specified only for demultiplexer.
The adjacent channel crosstalk
should be determined as the worst
case over all states of polarisation.
10 Non-adjacent channel Launch fibre
≤ –30 dB ≥ 2,0 m
crosstalk length:
Minimum allowable
IEC 61300-3-29 non-adjacent channel Measurement
±0,1 dB
uncertainty:
crosstalk over the
channel frequency
The non-adjacent channel crosstalk is
range
specified only for demultiplexer.
The non-adjacent channel crosstalk
should be determined as the worst
case over all states of polarisation.
11 Total channel crosstalk ≤ –22 dB (n ≤ 48) Launch fibre ≥2,0 m
length:
IEC 61300-3-29
≤ –20 dB (n > 48)
Measurement
±0,1 dB
Minimum allowable
uncertainty:
total channel crosstalk
The total adjacent channel crosstalk
value
is specified only for demultiplexer.
The total adjacent channel crosstalk
should be determined as the worst
case over all states of polarisation.
12 Polarisation dependent Launch fibre ≥ 2,0 m
≤ 0,4 dB
loss (PDL) length:
Maximum allowable
IEC 61300-3-2
PDL over the channel Measurement ±0,05 dB
frequency range uncertainty:
NOTE The allowable PDL
combination applies to all
combination of input and output ports
13 Polarisation mode ≤ 0,5 ps Launch fibre ≥ 2,0 m
dispersion (PMD) length:
Maximum allowable
IEC 61300-3-32
PMD over the channel Measurement ±0,1 ps
frequency range uncertainty:
NOTE The allowable PMD
combination applies to all
combination of input and output ports

No Tests Requirements Details
14 Chromatic dispersion Launch fibre
≤ 20 ps/nm for ≥ 2,0 m
(CD) length:
97,15 GHz minimum
channel spacing
IEC 61300-3-38 Measurement
±1 ps/nm
uncertainty:
≤ 20 ps/nm for
100 GHz minimum
NOTE The allowable CD
channel spacing
combination applies to all
combination of input and output ports
Maximum allowable CD
over the channel
frequency range
(absolute value)
15 Return loss Launch fibre
≥ 40 dB ≥ 2,0 m
length:
IEC 61300-3-6
Minimum allowable
return loss Measurement ±1 dB
uncertainty:
All ports not under test should be
terminated to avoid unwanted
reflections contributing to the
measurement
16 Directivity Launch fibre
≥ 40 dB ≥ 2,0 m
length:
IEC 61300-3-20
Maximum allowable
directivity Measurement ±1 dB
uncertainty:
All ports not under test should be
terminated to avoid unwanted
reflections contributing to the
measurement
The directivity should be measured
between any pair of input or output
ports
17 High optical power Before and after the Optical power: 300 mW
test, the limits of
IEC 61300-2-14 Wavelength: 1 550 nm
insertion loss and
return loss of tests
Duration of the 30 min
no. 4 and 15 shall be
optical power
met.
exposure:
During the test, the
Temperature:
+60 °C ± 2°C
insertion loss change is
monitored. During and
Relative humidity:
+2
93 % RH
after the test, the
−3
insertion loss change
shall be within ±0,3 dB Input port Common port
of the initial value.
During the test, the
return loss change is
monitored. The sum of
the initial value and the
change of the return
loss shall be within the
value defined at test
no. 5.
– 12 – IEC 61753-381-6:2016 © IEC 2016
Table 2 – Environmental tests & mechanical tests
No Tests Requirements Details
18 Damp heat Before and after the Temperature: +75 °C± 2 °C
test, the limits of
(steady state)
Relative humidity:
(90 ± 5) % RH
insertion loss and
return loss of tests
IEC 61300-2-19
Duration of 168 h
no. 4 and 15 shall
exposure:
be met.
During the test, the
insertion loss
change is
monitored. During
and after the test,
the insertion loss
change shall be
within ±0,3 dB of the
initial value.
19 Vibration Before and after the Frequency range: 10 Hz tο 55 Hz
(sinusoidal) test, the limits of
Number of axes: 3 orthogonal axes
insertion loss and
IEC 61300-2-1
return loss of tests
Number of 2 per axis
no. 4 and 15 shall
sweeps:
be met.
Sweep rate: 1 octave per minute
The insertion loss
change after the test
Amplitude: 1,52 mm
shall be within
±0,3 dB of the initial
value.
20 Shock Before and after the Acceleration: Components: 500 m/s
test, the limits of
IEC 61300-2-9 Modules:
insertion loss and
return loss of tests
0,125 kg < module mass ≤ 0,225 kg:
no. 4 and 15 shall
be met. 2 000 m/s
The insertion loss
0,225 kg < module mass ≤ 1 kg:
change after the test
500 m/s
shall be within
±0,3 dB of the initial
Duration: 1 ms, half sine pulse
value.
Number of axis: 3 axes in 2 directions
Number of shocks: 2 shocks per axis, 12 shocks in total
21 Change of Before and after the High temperature:
+75 °C ± 2 °C
temperature test, the limits of
Low temperature: -40 °C ± 2 °C
insertion loss and
IEC 61300-2-22
return loss of tests
no. 4 and 15 shall
Number of cycles: 10
be met.
During and after the Duration at 60 min
extreme
test, the insertion
temperature:
loss change shall be
within ±0,5 dB of the
initial value.
Rate of change: 1 °C/min.
No Tests Requirements Details
22 Temperature Before and after the High temperature:
+85 °C ± 2 °C
humidity cycling test, the limits of
insertion loss and
Low temperature: -40 °C ± 2 °C
IEC 61300-2-48
return loss of tests
no. 4 and 15 shall
(Method A)
Relative humidity
(85 ± 5) % RH
be met.
at the maximum
The insertion loss temperature:
change after the test
shall be within
±0,3 dB of the initial
Duration at 1 h
value.
extreme
temperatures:
Temperature rate
≥ 1 °C /min
of change:
Number of cycles: 42
23 Flexing of strain Before and after the Magnitude of the 5 N for reinforced cable;
relief of fibre optic test, the limits of load
2 N for secondary coated fibres.
devices insertion loss and
return loss of tests
For primary coated fibre the test can
IEC 61300-2-44 no. 4 and 15 shall
be omitted.
be met.
The insertion loss
Number of cycles
30 at ± 90°.
change after the test
shall be within
±0,3 dB of the initial
value.
24 Torsion/Twist Before and after the Magnification and 5 N at a speed of 0,1 N/s for
test, the limits of rate of application reinforced cables;
IEC 61300-2-5 insertion loss and of the tensile load
2 N at a speed of 0,1 N/s for
return loss of tests
secondary and primary coated
no. 4 and 15 shall
fibres.
be met.
For primary coated fibre the test can
The insertion loss
be omitted.
change after the test
shall be within
±0,3 dB of the initial
Point of 0,2 m from the end of the device.
value.
application of the
load
Number of cycles 10 at ±180°
25 Static side load Before and after the Magnitude and 1 N for 1 h for reinforced cable
test, the limits of duration of the
IEC 61300-2-42 0,2 N for 5 min for secondary coated
insertion loss and tensile load:
fibres
return loss of test
no. 4 and 15 shall
be met.
Direction of Two mutually perpendicular
application: directions
The insertion loss
change after the test
shall be within ± 0,3
dB of the initial
value.
– 14 – IEC 61753-381-6:2016 © IEC 2016
No Tests Requirements Details
26 Fibre/cable retention Before and after the Magnitude and
(10 ± 1) N at 0,5 N/s for reinforced
test, the limits of rate of application:
cables
IEC 61300-2-4
insertion loss and
(5,0 ± 0,5) N at 0,5 N/s for
return loss of tests
secondary coated fibres
no. 4 and 15 shall
be met.
Duration of the 120 s duration at 10 N
test
The insertion loss
change after the test
Point of 60 s duration at 5 N
shall be within
application of
±0,3 dB of the initial
0,3 m from the exit point of the
tensile load:
value.
fibre/cable from the specimen.
Method of The sample shall be rigidly mounted
mounting: such that the load is only applied to
the fibre/cable retention mechanism

Annex A
(normative)
Sequencing and grouping of tests

All samples shall be subjected to tests 1 to 23 (see Table A.1). Test groups and sequences
shall be performed in sequential order as described in Table A.1. The samples are sourced as
defined. Consecutive testing on the same optical sample is allowed, but in case of failure
during the consecutive testing, a new sample shall be prepared and the failed test shall be
redone.
Table A.1 – Sample size for each test

No Test Sample size Sample source Group
4 Insertion loss 12 New 1
5 Channel non-uniformity 12 Test 1
6 1 dB bandwidth 12 Test 2
7 3 dB bandwidth 12 Test 3
8 Passband ripple 12 Test 4
9 Adjacent channel crosstalk 12 Test 5
10 Non-adjacent channel crosstalk 12 Test 6
11 Total channel crosstalk 12 Test 7
12 Polarisation dependent loss (PDL) 12 Test 8
13 Polarisation mode dispersion (PMD) 12 Test 9
14 Chromatic dispersion 12 Test 10
15 Return loss 12 Test 11
16 Directivity 12 Test 12
17 High optical power 8 New 2
18 Damp heat (steady state) 4 Test 13 3
19 Vibration 4 Test 15
20 Shock 4 Test 16
21 Change of temperature 4 Test 17
22 Temperature humidity cycling 4 Test 18
23 Flexing of strain relief of fibre optic devices 4 Test 19
24 Torsion/Twist 4 Test 20
25 Static side load 4 Test 21
26 Fibre/Cable retention 4 Test 22
Number 1, 2 and 3 from Table 1 are not mentioned for sample size because they are not tests and so no sample
size needs to be defined.
– 16 – IEC 61753-381-6:2016 © IEC 2016
Annex B
(informative)
General information on cyclic AWGs

AWGs are commonly used as WDM transmission systems in order to multiplex or demultiplex
a large number of optical channels which all have a different wavelength. Single bidirectional
transmissions were introduced to increase system capacity without additional optical fibre. A
cyclic AWG is very attractive for the optical demultiplexer and multiplexer (OD/OM) in single
bidirectional transmission systems as shown in Figure B.1.
Receiver Receiver′
1 Signal λ′ Signal λ 1
1 1
Single bidirectional fibre
Signal λ Signal λ′
Transmitter 1 1 Transmitter′
1 1
Receiver Receiver′
N Signal λ′ Signal λ N
N N
Signal λ Signal λ′
Transmitter N N Transmitter′
N N
West side East side
IEC
Figure B.1 – Single bidirectional transmission with cyclic AWGs
To avoid reflection and crosstalk between the signals in different direction, the systems
employ two different bands typically C-band and L-band. Usage of cyclic AWGs will ensure
simple configuration of the WDM multiplexer (MUX) and demultiplexer (DeMUX) thanks to
optical characteristics of FSR in the AWG.
In ITU-T G.698.3, single bidirectional fibre is used to connect the head-end to the passive
OD/OM (see Figure B.2). The central frequencies of all channels in the head-end to tail-end
direction lie on the frequency grid for the minimum channel spacing given in ITU-T G.694.1.
The central frequencies of all channels in the tail-end to head-end direction do not lie on the
frequency grid for the minimum channel spacing given in ITU-T G.694.1. Instead, they are
determined by the free spectral range of the cyclic OD/OM device such as the cyclic AWG.
Cyclic AWG
Cyclic AWG
R for signals
s
going
Rx Rx
1 1
Tx Tx
1 1
S for signals
s
MPI-S
M
going
for signals
R
s
going
Rx Rx
2 2
Tx Tx
2 2
S
s
MPI-R
M
for signals
going
R
s
Rx Rx
N N
Tx Tx
N N
Seed
S
s
source
Head-end Tail-end
IEC
Figure B.2 − Reference diagram of ITU-T G.698.3
In the application, the cyclic AWGs in the head-end or black link should be operated under the
appropriate environment defined in IEC 61753-1.

OD/OM
OD/OM
– 18 – IEC 61753-381-6:2016 © IEC 2016
Annex C
(informative)
Channel frequency range and free spectral range

C-band L-band
Ch1 Ch2 ChN-1 ChN Ch1 Ch2 ChN-1 ChN
Channel Channel Channel Channel
spacing spacing spacing spacing
Minimum Minimum Minimum Minimum
channel channel channel channel
frequency frequency frequency frequency

Free spectral range
IEC
Figure C.1 − Description of channel frequency range and free spectral range

Annex D
(informative)
Summary of differences between IEC 61753-081-2 and IEC 61753-381-6

Table D.1 – Summary of differences between IEC 61753-081-2 and IEC61753-381-6
Operating
Number of
Channel spacing FSR requirement Application wavelength
channels
range
IEC 61753-081-2 50 GHz, 100 GHz no limitation Single band
16 ≤ n ≤ 64 FSR > Operating
and 200 GHz
wavelength range
IEC 61753-381-6 16 ≤ n ≤ 48 C-band: 100GHz 5 425,4 GHz described Both C and L
band
L-band: (FSR < Operating
97,15 GHz
wavelength
range)
– 20 – IEC 61753-381-6:2016 © IEC 2016
Bibliography
IEC 61300 (all parts), Fibre optic interconnecting devices and passive components – Basic
test and measurement procedures
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 61753-081-2, Fibre optic interconnecting devices and passive components – Performance
standard – Part 081-2: Non-connectorized single-mode fibre optic middle-scale 1 × N DWDM
devices for category C – Controlled environments
IEC 61753-1, Fibre optic interconnecting devices and passive components performance
standard – Part 1: General and guidance for performance standards
ITU-T G.Supplement 39, Optical system design and engineering considerations (09/2012)

_____________
– 22 – IEC 61753-381-6:2016 © IEC 2016
SOMMAIRE
AVANT-PROPOS . 23
1 Domaine d'application . 25
2 Références normatives . 25
3 Termes et définitions . 26
4 Conditions d’essai . 28
5 Rapport d’essai . 28
6 Composants de référence . 28
7 Exigences de performances . 28
7.1 Dimensions . 28
7.2 Exigences et détails des essais . 28
Annexe A (normative) Ordonnancement et groupement des essais . 35
Annexe B (informative) Informations générales sur les AWG cycliques . 36
Annexe C (informative) Plage de fréquences du canal et plage spectrale libre . 38
Annexe D (informative) Synthèse des différences entre l'IEC 61753-081-2 et
l'IEC 61753-381-6 . 39
Bibliographie . 40

Figure 1 – Représentation d'un AWG cyclique . 27
Figure B.1 – Transmission bidirectionnelle unique avec des AWG cycliques . 36
Figure B.2 – Schéma de référence de la Recommandation UIT-T G.698.3 . 37
Figure C.1 – Description de la plage de fréquences du canal et de la plage spectrale
libre . 38

Tableau 1 – Essais et exigences concernant les paramètres de performances optiques . 29
Tableau 2 – Essais environnementaux et essais mécaniques . 32
Tableau A.1 – Taille d'échantillon pour chaque essai . 35
Tableau D.1 – Synthèse des différences entre l'IEC 61753-081-2 et l'IEC 61753-381-6 . 39

COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
______________
DISPOSITIFS D'INTERCONNEXION ET
COMPOSANTS PASSIFS À FIBRES OPTIQUES –
NORME DE PERFORMANCE –
Partie 381-6: Réseau sélectif planaire cyclique –
Catégorie O (environnement non contrôlé)

AVANT-PROPOS
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...