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BS EN IEC 61977:2020

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Fibre optic interconnecting devices and passive components. Fibre optic fixed filters. Generic specification

Published By Publication Date Number of Pages
BSI 2020 32
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IEC 61977:2020 is available as IEC 61977:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61977:2020 applies to the family of fibre optic filters. These components have all of the following general features:- they are passive for the reason that they contain no optoelectronic or other transducing elements which can process the optical signal launched into the input port; – they modify the spectral intensity distribution in order to select some wavelengths and inhibit others; – they are fixed, i.e. the modification of the spectral intensity distribution is fixed and cannot be tuned; – they have input and output ports or a common port (having both functions of input and output) for the transmission of optical power; the ports are optical fibre or optical fibre connectors; – they differ according to their characteristics. They can be divided into the following categories: – short-wave pass (only wavelengths lower than or equal to a specified value are passed); – long-wave pass (only wavelengths greater than or equal to a specified value are passed); – band-pass (only an optical window is allowed); – notch (only an optical window is inhibited); – gain flattening (compensating the spectral profile of the device). It is also possible to have a combination of the above categories. This document provides the generic information including terminology of IEC 61753-04x series documents. Published IEC 61753-04x series documents are listed in the Bibliography. This document establishes uniform requirements for optical, mechanical and environmental properties. This fourth edition cancels and replaces the third edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: – change of the title and the scope for the limitation to fibre optic fixed filters; – addition of new terms and definitions reflecting new title; – removal of terms and definitions duplicated in IEC TS 62627-09; – harmonization of the vertical axis of Figures 1 to 5; – restructuration of Clause 4 reflecting the latest technical and market situation.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
7 English
CONTENTS
9 FOREWORD
11 INTRODUCTION
12 1 Scope
2 Normative references
13 3 Terms and definitions
3.1 Component terms
15 3.2 Performance terms
16 Figures
Figure 1 – Illustration of passband ripple
17 Figure 2 – Illustration of a stopband
Figure 3 – Illustration of maximum insertion loss within a passband
18 Figure 4 – Illustration of minimum insertion loss within a passband
19 4 Requirements
4.1 Classification
4.1.1 General
Figure 5 – Illustration of X dB bandwidth
Table 1 – Example of a typical fibre optic fixed filter classification
20 4.1.2 Technology and function type
4.1.3 Interface style
4.2 Documentation
4.2.1 Symbols
4.2.2 Drawings
Tables
21 4.2.3 Tests and measurements
4.2.4 Test report
4.2.5 Instructions for use
4.3 Standardisation system
4.3.1 Interface standards
4.3.2 Performance standards
4.3.3 Reliability standards
22 4.4 Design and construction
4.4.1 Materials
4.4.2 Workmanship
4.5 Quality
4.6 Performance requirements
4.7 Identification and marking
4.7.1 General
4.7.2 Component marking
4.7.3 Package marking
23 4.8 Packaging
4.9 Storage conditions
4.10 Safety
24 Annex A (informative) Example of etalon filter technology
A.1 Operating principle of etalon filter
Figure A.1 – Schematic diagram of an etalon
25 A.2 Transmission characteristics of etalon filter
Figure A.2 – Transmission characteristic of an etalon
26 Annex B (informative) Example of fibre Bragg grating (FBG) filter technology
B.1 Operating principle of FBG
Figure B.1 – Technology of a fibre Bragg grating
27 B.2 Example of usage of an FBG
Figure B.2 – Application of an optical add/drop module
Figure B.3 – Application of an OTDR sensor
Figure B.4 – Application of the wavelength stabilizer for a 980 nm pump LD
28 Annex C (informative) Example of thin film filter technology
C.1 Example of thin film filter technology
C.2 Example of application of thin film filters
Figure C.1 – Structure of a multilayer thin-film
29 Figure C.2 – Application for a GFF for an optical fibre amplifier
Figure C.3 – Application for a BPF for an optical fibre amplifier
30 Annex D (informative) Examples of interface style
Figure D.1 – Examples of interface style for fibre optic fixed filters
31 Bibliography
BS EN IEC 61977:2020
$142.49