Fibre optic interconnecting devices and passive components - Fibre optic tuneable bandpass filters - Generic specification

IEC 63032:2018 applies to the family of tuneable bandpass filters. These components can modify the spectral intensity distribution in order to select some wavelengths and inhibit others.
They can be categorized into the following:
- wavelength tuneable;
- bandwidth tuneable;
- wavelength and bandwidth tuneable filter.
This document establishes uniform requirements for optical, mechanical and environmental properties.
Key words: tuneable bandpass filters

Dispositifs d'interconnexion et composants passifs fibroniques - Filtres fibroniques passe-bande accordables - Spécification générique

IEC 63032:2018 s'applique à la famille des filtres passe-bande accordables. Ces composants peuvent modifier la distribution de l'intensité spectrale afin de sélectionner certaines longueurs d'onde et d'en bloquer d'autres.
Ils peuvent être classés dans les catégories suivantes:
- filtre accordable en longueur d'onde;
- filtre accordable en largeur de bande;
- filtre accordable en longueur d'onde et en largeur de bande.
Le présent document établit des exigences uniformes relatives aux propriétés optiques, mécaniques et environnementales.
Mots clés : filtres passe-bande accordables

General Information

Status
Published
Publication Date
23-May-2018
Current Stage
PPUB - Publication issued
Completion Date
24-May-2018
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IEC 63032
Edition 1.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre optic interconnecting devices and passive components – Fibre optic
tuneable bandpass filters – Generic specification
Dispositifs d'interconnexion et composants passifs fibroniques – Filtres
fibroniques passe-bande accordables – Spécification générique
IEC 63032:2018-05(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 63032
Edition 1.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre optic interconnecting devices and passive components – Fibre optic
tuneable bandpass filters – Generic specification
Dispositifs d'interconnexion et composants passifs fibroniques – Filtres
fibroniques passe-bande accordables – Spécification générique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.20 ISBN 978-2-8322-5748-7

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

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

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 63032:2018 © IEC 2018
CONTENTS

FOREWORD ........................................................................................................................... 4

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

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

3 Terms and definitions ...................................................................................................... 7

4 Requirements ................................................................................................................ 11

4.1 Classification ........................................................................................................ 11

4.1.1 General ......................................................................................................... 11

4.1.2 Type .............................................................................................................. 11

4.1.3 Style .............................................................................................................. 11

4.2 Documentation ...................................................................................................... 12

4.2.1 Symbols ........................................................................................................ 12

4.2.2 Drawings ....................................................................................................... 12

4.2.3 Test and measurements ................................................................................ 13

4.2.4 Test report ..................................................................................................... 13

4.2.5 Instructions for use ........................................................................................ 13

4.3 Standardisation system ......................................................................................... 13

4.3.1 Performance standard ................................................................................... 13

4.3.2 Reliability standard ........................................................................................ 14

4.3.3 Interlinking ..................................................................................................... 14

4.4 Design and construction ........................................................................................ 15

4.4.1 Materials ....................................................................................................... 15

4.4.2 Workmanship ................................................................................................. 15

4.5 Performance requirements .................................................................................... 16

4.6 Identification and marking ..................................................................................... 16

4.6.1 General ......................................................................................................... 16

4.6.2 Component marking ....................................................................................... 16

4.6.3 Package marking ........................................................................................... 16

4.7 Packaging ............................................................................................................. 16

4.8 Storage conditions ................................................................................................ 16

4.9 Safety ................................................................................................................... 17

Annex A (informative) General information of tuneable bandpass filters ............................... 18

Annex B (informative) Examples of tuneable bandpass filter technologies ............................ 19

B.1 Tuneable filter using thermo-optic effects .............................................................. 19

B.2 Tuneable filter using acousto-optic effects ............................................................ 20

B.3 Tuneable filter using mechanical effects ............................................................... 20

B.4 Tuneable filter using piezoelectric effects ............................................................. 21

Bibliography .......................................................................................................................... 23

Figure 1 – Illustration of wavelength tuneable bandpass filter ................................................. 7

Figure 2 – Illustration of bandwidth tuneable bandpass filter ................................................... 8

Figure 3 – Illustration of wavelength and bandwidth tuneable bandpass filter .......................... 8

Figure 4 – Illustration of insertion loss deviation of tuning ....................................................... 9

Figure 5 – Illustration of X dB bandwidth deviation of wavelength tuning ............................... 10

Figure 6 – Tuneable bandpass filter style configurations ....................................................... 12

Figure B.1 – Thermally tuneable thin film filter ...................................................................... 19

---------------------- Page: 4 ----------------------
IEC 63032:2018 © IEC 2018 – 3 –

Figure B.2 – Thermally tuneable waveguide Bragg grating .................................................... 19

Figure B.3 – Thermally tuneable fibre Bragg grating ............................................................. 19

Figure B.4 – Acousto-optic tuneable bandpass filter .............................................................. 20

Figure B.5 – Tuneable filter by changing the incident angle .................................................. 20

Figure B.6 – Tuneable filter by sliding the incident position ................................................... 21

Figure B.7 – MEMS tuneable filter ........................................................................................ 21

Figure B.8 – Tuneable bandpass filter by gap control using piezoelectric effect .................... 22

Table 1 – IEC specification structure ..................................................................................... 11

Table 2 – Standards interlink matrix ...................................................................................... 15

Table 3 – Quality assurance options ..................................................................................... 15

---------------------- Page: 5 ----------------------
– 4 – IEC 63032:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE
COMPONENTS – FIBRE OPTIC TUNEABLE BANDPASS
FILTERS – GENERIC SPECIFICATION
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

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

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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between 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

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

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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) 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 63032 has been prepared by subcommittee SC 86B: Fibre optic

interconnecting devices and passive components, of IEC technical committee TC 86: Fibre

optics.
The text of this International Standard is based on the following documents:
FDIS Report on voting
86B/4125/FDIS 86B/4129/RVD

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.

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

---------------------- Page: 6 ----------------------
IEC 63032:2018 © IEC 2018 – 5 –

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct

understanding of its contents. Users should therefore print this document using a

colour printer.
---------------------- Page: 7 ----------------------
– 6 – IEC 63032:2018 © IEC 2018
FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE
COMPONENTS – FIBRE OPTIC TUNEABLE BANDPASS
FILTERS – GENERIC SPECIFICATION
1 Scope

This document applies to the family of tuneable bandpass filters. These components can

modify the spectral intensity distribution in order to select some wavelengths and inhibit

others.
They can be categorized into the following:
– wavelength tuneable;
– bandwidth tuneable;
– wavelength and bandwidth tuneable filter.

This document establishes uniform requirements for optical, mechanical and environmental

properties.
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 60027 (all parts), Letter symbols to be used in electrical technology

IEC 60617, Graphical symbols for diagrams (available at http://std.iec.ch/iec60617)

IEC 60695-11-5, Fire hazard testing – Part 11-5: Test flames – Needle-flame test method –

Apparatus, confirmatory test arrangement and quidance

IEC 60825-1, Safety of laser products – Part 1: Equipment classification and requirements

IEC 61300 (all parts), Fibre optic interconnecting devices and passive components – Basic

test and measurement procedures
IEC TR 61930, Fibre optic graphical symbology

IEC 61977, Fibre optic interconnecting devices and passive components – Fibre optic filters –

Generic specification

IEC TS 62627-09, Fibre optic interconnecting devices and passive components – Vocabulary

for passive optical devices

ISO 129, Technical drawings – Dimensioning – General principles, definitions, methods of

execution and special indications

ISO 286-1, Geometrical product specifications (GPS) – ISO code system for tolerances on

linear sizes – Part 1: Bases of tolerances, deviations and fits
---------------------- Page: 8 ----------------------
IEC 63032:2018 © IEC 2018 – 7 –

ISO 1101, Geometrical product specifications (GPS) – Geometrical tolerancing – Tolerancing

of form, orientation, location and run-out
ISO 8601, Data elements and interchange formats – Information interchange –
Representation of dates and times
3 Terms and definitions

For the purposes of this document, the terms and definitions in IEC 61977, IEC TS 62627-09

and the following apply.

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

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
wavelength tuneable bandpass filter

fibre optic filter in which the passband can be shifted without changing the spectral shape

Note 1 to entry: See Figure 1.
Wavelength tuning
Insertion
loss (dB)
Wavelength
IEC
NOTE Insertion loss is equivalent to attenuation.
Figure 1 – Illustration of wavelength tuneable bandpass filter
3.2
bandwidth tuneable bandpass filter

fibre optic filter in which the passband width can be changed without shifting the centre of the

passband
Note 1 to entry: See Figure 2.
---------------------- Page: 9 ----------------------
– 8 – IEC 63032:2018 © IEC 2018
Bandwidth tuning
Insertion
loss (dB)
Wavelength
IEC
NOTE Insertion loss is equivalent to attenuation.
Figure 2 – Illustration of bandwidth tuneable bandpass filter
3.3
wavelength and bandwidth tuneable bandpass filter

fibre optic filter in which both the centre of the passband and the passband width can be

changed
Note 1 to entry: See Figure 3.
Wavelength and bandwidth tuning
Insertion
loss (dB)
Wavelength
IEC
NOTE Insertion loss is equivalent to attenuation.
Figure 3 – Illustration of wavelength and bandwidth tuneable bandpass filter
3.4
bandwidth tuneable range

spectral interval either in frequency or wavelength over which the passband bandwidth of a

tuneable optic filter can be adjusted by means of tuning control

Note 1 to entry: This term is applied for (a) bandwidth tuneable bandpass filters and (b) wavelength and

bandwidth tuneable bandpass filters.
3.5
wavelength tuneable range

spectral interval either in frequency or wavelength over which the operating wavelength or

frequency of a tuneable optic filter can be adjusted by means of tuning control

Note 1 to entry: This term is applied for (a) wavelength tuneable bandpass filters and (b) wavelength and

bandwidth tuneable bandpass filters.
---------------------- Page: 10 ----------------------
IEC 63032:2018 © IEC 2018 – 9 –
3.6
bandwidth tuning resolution
minimum adjustable step size of the passband bandwidth

Note 1 to entry: This term is applied for (a) bandwidth tuneable bandpass filters and (b) wavelength and

bandwidth tuneable bandpass filters.
3.7
wavelength tuning resolution
minimum adjustable step size of the centre wavelength

Note 1 to entry: This term is applied for (a) wavelength tuneable bandpass filters and (b) wavelength and

bandwidth tuneable bandpass filters.
3.8
repeatability of bandwidth tuning

maximum deviation of the passband bandwidth after multiple times of repeated tuning

Note 1 to entry: This term is applied for (a) bandwidth tuneable bandpass filters and (b) wavelength and

bandwidth tuneable bandpass filters.

Note 2 to entry: The number of repeated times of tuning will be defined in the performance standard.

3.9
repeatability of wavelength tuning
maximum deviation of the wavelength after multiple times of repeated tuning

Note 1 to entry: This term is applied for (a) wavelength tuneable bandpass filters and (b) wavelength and

bandwidth tuneable bandpass filters.

Note 2 to entry: The number of repeated times of tuning will be defined in the performance standard.

3.10
insertion loss deviation of wavelength tuning

maximum attenuation (insertion loss) variation of a tuneable optic filter between wavelength

channels after multiple times of repeated tuning

Note 1 to entry: This term is applied for (a) wavelength tuneable bandpass filters and (b) wavelength and

bandwidth tuneable bandpass filters.

Note 2 to entry: The number of repeated times of tuning will be defined in the performance standard.

Note 3 to entry: See Figure 4.
Insertion loss deviation
0 of tuning
Insertion
loss (dB)
Passband Passband
Wavelength
IEC
NOTE Insertion loss is equivalent to attenuation.
Figure 4 – Illustration of insertion loss deviation of tuning
---------------------- Page: 11 ----------------------
– 10 – IEC 63032:2018 © IEC 2018
3.11
X dB bandwidth deviation of wavelength tuning

maximum variation of a bandwidth of the tuneable optic filter after multiple times of repeated

tuning

Note 1 to entry: This term is applied for (a) wavelength tuneable bandpass filters and (b) wavelength and

bandwidth tuneable bandpass filters.

Note 2 to entry: The number of repeated times of tuning will be defined in the performance standard.

Note 3 to entry: See Figure 5.
X dB bandwidth deviation of tuning
X dB bandwidth (2)
X dB bandwidth (1)
X dB
X dB
Insertion
loss (dB)
X dB bandwidth (1) X dB bandwidth (2)
Wavelength
IEC
NOTE Insertion loss is equivalent to attenuation.
Figure 5 – Illustration of X dB bandwidth deviation of wavelength tuning
3.12
polarization dependent loss deviation of wavelength tuning
PDL deviation of wavelength tuning

maximum variation of polarization dependent loss for several wavelength channels after

multiple times of repeated tuning

Note 1 to entry: This term is applied for (a) wavelength tuneable bandpass filters and (b) wavelength and

bandwidth tuneable bandpass filters.

Note 2 to entry: The number of repeated times of tuning will be defined in the performance standard.

Note 3 to entry: This note applies to the French language only.
3.13
channel isolation deviation of wavelength tuning

maximum variation in channel isolation for several wavelength channels after multiple times of

repeated tuning

Note 1 to entry: This term is applied for (a) wavelength tuneable bandpass filters and (b) wavelength and

bandwidth tuneable bandpass filters.

Note 2 to entry: The number of repeated times of tuning will be defined in the performance standard.

3.14
wavelength channel tuning time

time taken for the tuneable optic filter to move from the initial wavelength channel to the

target wavelength channel

Note 1 to entry: This term is applied for (a) wavelength tuneable bandpass filters and (b) wavelength and

bandwidth tuneable bandpass filters.
---------------------- Page: 12 ----------------------
IEC 63032:2018 © IEC 2018 – 11 –
3.15
bandwidth tuning time
time taken to adjust the bandwidth of the tuneable optic filter

Note 1 to entry: This term is applied for (a) bandwidth tuneable bandpass filters and (b) wavelength and

bandwidth tuneable bandpass filters.
4 Requirements
4.1 Classification
4.1.1 General

Fibre optic tuneable bandpass filters are classified either totally or in part by the following

categories:
– type;
– style.

An example of a typical tuneable bandpass filter classification is shown in Table 1.

Table 1 – IEC specification structure
Type Style
Wavelength tuneable – Configuration C
– LC connector
4.1.2 Type

The tuneable bandpass filter type shall be defined by its intended function and optical

performance. There are several types of filters, for instance:
– wavelength tuneable;
– bandwidth tuneable.
4.1.3 Style

The tuneable bandpass filter style shall be defined on the basis of the following elements:

– the input and output port configuration;
– the connector set type(s), if any.
---------------------- Page: 13 ----------------------
– 12 – IEC 63032:2018 © IEC 2018

The five different input and output configurations can be scheduled as shown in Figures 6 a)

to 6 e).
Filter
Pigtail
IEC

a) Configuration A – Device containing fibre optic pigtails without connector plug

Filter
Connector plug
IEC

b) Configuration B – Device containing integral fibres, with a connector plug on each fibre

Filter
IEC

c) Configuration C – Device containing fibre optic connectors as a part of the device housing

Filter
IEC

d) Configuration D – Device containing one fibre optic connector as a part of the device housing

Filter
IEC
e) Configuration E – Device with the interfacing features of the ray of light
Figure 6 – Tuneable bandpass filter style configurations
4.2 Documentation
4.2.1 Symbols

Graphical and letter symbols shall, whenever possible, be taken from IEC 60027 (all parts),

IEC 60617 (all parts) and IEC TR 61930 unless superseded by this document.
4.2.2 Drawings
4.2.2.1 General

The drawings and dimensions given in the relevant specifications shall not restrict detail

construction nor be used as manufacturing drawings.
---------------------- Page: 14 ----------------------
IEC 63032:2018 © IEC 2018 – 13 –
4.2.2.2 Dimensional system

All dimensions shall be given in accordance with ISO 129, ISO 286-1 and ISO 1101. The

metric system shall be used in all specifications. Dimensions shall not contain more than five

significant digits. When units are converted, a note shall be added in each relevant

specification.
4.2.3 Test and measurements
4.2.3.1 Test and measurement procedures

The test and measurement procedures for optical, mechanical, climatic and environmental

characteristics of filters to be used shall be defined and selecte
...

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