IEC 62343-1-2:2015

Dynamic modules - Part 1-2: Performance standards - Tuneable chromatic dispersion compensator (non-connectorized)

IEC 62343-1-2:2015 contains the recommended minimum initialization test and measurement requirements and severities for optical tuneable chromatic dispersion compensators (TDC). This second edition cancels and replaces the first edition published in 2007. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- substantial addition of definitions and removal of type C performances;
- change in the title to reflect standard terminology. Keywords: optical tuneable chromatic dispersion compensators (TDC)

Modules dynamiques - Partie 1-2: Normes de performance - Compensateur de dispersion chromatique réglable (non connectorisé)

L'IEC 62343-1-2:2015 contient les exigences minimales recommandées d'essai d'initialisation et de mesure, et les sévérités pour des compensateurs de dispersion chromatique optique réglable (TDC). Cette deuxième édition annule et remplace la première édition parue en 2007. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- ajout important de définitions et retrait des performances pour le type C;
- modification du titre pour prendre en compte la terminologie de la série de norme. Mots clés: compensateurs de dispersion chromatique optique réglable (TDC).

General Information

• Status: Published
• Publication Date: 24-Jun-2015
• ICS: 33.180.30 - Optic amplifiers
• Technical Committee: SC 86C - Fibre optic systems, sensing and active devices
• Drafting Committee: WG 5 - TC 86/SC 86C/WG 5
• Current Stage: PPUB - Publication issued
• Start Date: 25-Jun-2015
• Completion Date: 31-Jul-2015

Relations

• Revises: IEC 62343-1-2:2007 - Dynamic modules - Part 1-2: Performance standards - Dynamic chromatic dispersion compensator with pigtails for use in controlled environments (Category C)
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62343-1-2 ®
Edition 2.0 2015-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Dynamic modules –
Part 1-2: Performance standards – Tuneable chromatic dispersion compensator
(non-connectorized)
Modules dynamiques –
Partie 1-2: Normes de performance – Compensateur de dispersion chromatique
réglable (non connectorisé)
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IEC 62343-1-2 ®
Edition 2.0 2015-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Dynamic modules –
Part 1-2: Performance standards – Tuneable chromatic dispersion compensator

(non-connectorized)
Modules dynamiques –
Partie 1-2: Normes de performance – Compensateur de dispersion chromatique

réglable (non connectorisé)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.30 ISBN 978-2-8322-2771-8

– 2 – IEC 62343-1-2:2015 © IEC 2015
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references. 5
3 Terms and definitions . 6
4 Test . 7
4.1 General . 7
4.2 Module . 7
4.3 Spectral bands . 7
5 Test report. 8
6 Performance requirements . 8
6.1 Dimensions . 8
6.2 Sample size . 8
6.3 Test details and requirements . 8
Bibliography . 11

Table 1 – Spectral bands for single-mode systems (ITU-T G Suppl. 39) . 8
Table 2 – Test and requirements for type A (Multi/single channel type TDC with large
dispersion variable range) . 9
Table 3 – Test and requirements for type B (Multi/single channel type TDC with
standard dispersion variable range) . 10

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DYNAMIC MODULES –
Part 1-2: Performance standards – Tuneable chromatic
dispersion compensator (non-connectorized)

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
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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 62343-1-2 has been prepared by subcommittee 86C: Fibre optic
systems and active devices, of IEC technical committee 86: Fibre optics.
This second edition cancels and replaces the first edition published in 2007. It constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) substantial addition of definitions and removal of type C performances.
b) change in the title to reflect standard terminology.

– 4 – IEC 62343-1-2:2015 © IEC 2015
The text of this standard is based on the following documents:
FDIS Report on voting
86C/1315/FDIS 86C/1336/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.
A list of all parts in the IEC 62343 series, published under the general title Dynamic modules,
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.
DYNAMIC MODULES –
Part 1-2: Performance standards – Tuneable chromatic
dispersion compensator (non-connectorized)

1 Scope
This part of IEC 62343 contains the recommended minimum initialization test and
measurement requirements and severities for optical tuneable chromatic dispersion
compensators (TDC).
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 61300-1, 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 61300-3-2, 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 61300-3-29, 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 61753-021-2, Fibre optic interconnecting devices and passive components performance
standard – Part 021-2: Grade C/3 single-mode fibre optic connectors for category C –
Controlled environment
IEC 62074-1, Fibre optic interconnecting devices and passive components – Fibre optic WDM
devices – Part 1: Generic specification
IEC 62343, Dynamic modules – General and guidance
ITU-T Recommendation G.671, Transmission characteristics of optical components and
subsystems
– 6 – IEC 62343-1-2:2015 © IEC 2015
ITU-T Recommendation G.692, Optical interfaces for multichannel systems with optical
amplifiers
ITU-T G-series Recommendations – Supplement 39, Optical system design and engineering
considerations
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 62074-1, IEC 62343
and the following apply.
3.1
group delay
time required by an optical pulse to transit an optical element
Note 1 to entry: Group delay that depends on optical wavelength (or frequencies) causes optical pulse distortion
through the optical element.
Note 2 to entry: It is expressed as the derivation of the propagation constant with respect to angular frequency,
∂β/∂ω, through the optical element, where β is the propagation constant, and ω is the angular frequency equal to
2πc/λ, where λ is the wavelength.
3.2
GDR
group delay ripple
maximum peak-to-peak variation of the group delay approximated by a desired function,
typically a linear fit, within a channel wavelength (or frequency) range
Note 1 to entry This note applies to the French languange only.
3.3
phase ripple
standard deviation of the peak-to-peak variation in measured phase spectrum when compared
to a quadratic fit within a channel wavelength (or frequencies) range
3.4
CD
chromatic dispersion
group delay difference between two closely spaced wavelengths inside an optical signal going
through a pair of conducting ports of a DWDM device
Note 1 to entry: It corresponds to the difference between the arrival times of these two closely spaced
wavelengths. Chromatic dispersion is defined as the variation (first order derivative) of this group delay over a
range of wavelengths especially over the channel operating wavelength range at the given time, temperature,
pressure and humidity. It is expressed in terms of units of ps/nm or ps/GHz and it is a predictor of the broadening
of a pulse transmitted through the module.
Note 2 to entry: This note applies to the French languange only.
3.5
tuneable chromatic dispersion compensator
two-port in-line device that is capable of transforming, by internal or external automatic
control, an input signal with time-varying dispersion into an output signal in which an output
channel dispersion value is set for a required level of value
3.6
operating wavelength range
specified range of wavelengths from λ to λ about a nominal operating wavelength λ ,
imin imax I
within which a dynamic optical module is designed to operate with a specified performance

3.7
channel frequency range
frequency range within which a device is expected to operate with a specified performance
Note 1 to entry: For a particular nominal channel central frequency, f , this frequency range is from
nomi
f = (f − ∆f ) to f = (f + ∆f ), where ∆f is the maximum channel central frequency deviation.
imin nomi max imax nomi max max
3.8
passband ripple
maximum peak-to-peak variation of the insertion loss within a channel frequency (or
wavelength) range
3.9
channel spacing
centre to centre difference in frequency (or wavelength) between adjacent channels in a
device
4 Test
4.1 General
The characterization of a tuneable chromatic dispersion compensator requires demonstration
that those components or features within the module, together with that of the module itself,
are capable of yielding the performance requirements as defined in the relevant specification.
Where it can be adequately demonstrated that components or features have previously met
all of the requirements of a specific performance standard category, they may be declared as
complying with that performance standard. This may obviate the need for repeat testing of
components or features in such cases. Where this occurs, reference shall be made to the
relevant test reports or documentation.
4.2 Module
Unless otherwise specified, all TDC module test methods shall be in accordance with
IEC 61300-1, IEC 61300-2-14, IEC 61300-3-2, IEC 61300-3-29, IEC 61300-3-32 and
IEC 61300-3-38.
TDC modules used for each test are intended to be previously unstressed new samples but
may be selected from previously used samples if desired. Each test defines the number of
samples to be evaluated.
All measurements shall be carried out at standard test conditions as defined in IEC 61300-1,
unless otherwise stated. If the module is provided with an active temperature control, this
shall be set at the setpoint specified by the manufacturer.
The defined performance requirements apply to every combination of input and output port,
over all polarization states and over all specified environmental conditions.
4.3 Spectral bands
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 specified between the customer and supplier or shall be as
defined in the manufacturer’s specification.

– 8 – IEC 62343-1-2:2015 © IEC 2015
Table 1 – Spectral bands for single-mode systems (ITU-T G Suppl. 39)
Range
Band Descriptor
(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

5 Test report
Fully documented test reports and supporting evidence shall be prepared and be available for
inspections as evidence that the tests have been carried out and complied with.
6 Performance requirements
6.1 Dimensions
Dimensions shall comply with either an appropriate IEC interface standard, or with those
given in the manufacturer's drawings when the IEC interface standard does not exist or
cannot be used.
6.2 Sample size
Three (3) TDC modules are used in each module test. The tests may be performed
individually or in sequential order.
The test sample size and sequencing requirements for the modules shall be defined in the
relevant specification.
6.3 Test details and requirements
The requirements are given only for non-connectorized TDC modules. For connectorized
modules, the connector performances shall be in compliance with IEC 61753-021-2.
A minimum length of fibre or cable of 1,5 m per port shall be included in all climatic and
environmental tests.
The channel spacings, unless otherwise specified, shall be in accordance with
ITU-T Recommendation G.692.
The test details of the performance standard are shown in Tables 2 and 3. These tables
provide figures as a guideline of performance requirements and are not indicative of values
that must be met in an operational environment.

Table 2 – Test and requirements for type A
(Multi/single channel type TDC with large dispersion variable range)
No Tests Requirements Details
1A Channel frequency range ITU-T Recommendation G.671
(ITU-T-grid) ±10 GHz (for 10 Gb/s)
(ITU-T-grid) ±40 GHz (for 40 Gb/s)
2A Dispersion variable range IEC 61300-3-38
–1 800 to +1 800 ps/nm (for
10 Gb/s)
–400 to +400 (for 40 Gb/s)
3A Insertion loss ≤ 12 dB IEC 61300-3-29
4A Passband ripple < 0,5 dB IEC 61300-3-29
over the channel frequency range
5A Group delay ripple IEC 61300-3-38
≤ ±6 ps (for 10 Gb/s)
≤ ±2 ps (for 40 Gb/s)
6A Phase ripple IEC 61300-3-38
< 0,046 rad (eye opening
penalty = 0,1 dB)
7A Polarization dependent loss IEC 61300-3-2
≤ 0,6 dB
over the channel frequency range
8A Inter-channel loss uniformity IEC 61300-3-29
≤ 0,85 dB (only multi-channel
type )
9A Polarization mode dispersion IEC 61300-3-32
≤ 3 ps (for 10 Gb/s)
≤ 1 ps (for 40 Gb/s)
10A Dispersion setting error IEC 61300-3-38
≤ ±5 ps/nm
11A Dispersion tuning time Method under cons
...