IEC 61977:2015 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). It is also possible to have a combination of the above categories. This standard establishes uniform requirements for the following: optical, mechanical and environmental properties. This third edition cancels and replaces the second edition published in 2010. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: – harmonization of a number of terms and definitions with other generic specifications; – deletion of the quality assessment level clause. Keywords: fibre optic filters generic specification<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 4<\/td>\n | European foreword Endorsement notice <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | Annex ZA (normative) Normative references to international publications with their corresponding European publications <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 1 Scope 2 Normative references <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 3 Terms and definitions 3.1 Basic terms 3.2 Component terms <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 3.3 Performance terms Figures Figure 1 \u2013 Illustration of passband ripple <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Figure 2 \u2013 Illustration of a stopband <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Figure 3 \u2013 Illustration of maximum insertion loss within a passband Figure 4 \u2013 Illustration of minimum insertion loss within a passband <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 4 Requirements 4.1 Classification 4.1.1 General Figure 5 \u2013 Illustration of X dB bandwidth <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 4.1.2 Type 4.1.3 Style Tables Table 1 \u2013 Example of a typical filter classification <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 4.1.4 Variant 4.1.5 Normative reference extensions Figure 6 \u2013 Optic filter style configurations <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 4.2 Documentation 4.2.1 Symbols 4.2.2 Specification system Table 2 \u2013 The IEC specification structure <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 4.2.3 Drawings <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 4.2.4 Test and measurements 4.2.5 Test report 4.2.6 Instructions for use 4.3 Standardisation system 4.3.1 Interface standards <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 4.3.2 Performance standards 4.3.3 Reliability standards <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 4.3.4 Interlinking <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 4.4 Design and construction 4.4.1 Materials Figure 7 \u2013 Standards currently under preparation Table 3 \u2013 Standards interlink matrix Table 4 \u2013 Quality assurance options <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 4.4.2 Workmanship 4.5 Performance requirements 4.6 Identification and marking 4.6.1 General 4.6.2 Variant identification number 4.6.3 Component marking 4.6.4 Package marking <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 4.7 Packaging 4.8 Storage conditions 4.9 Safety <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Annex A (informative) Example of etalon filter technology A.1 Operating principle of etalon filter A.2 Transmission characteristics of etalon filter Figure A.1 \u2013 Schematic diagram of an etalon <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Figure A.2 \u2013 Transmission characteristic of an etalon <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Annex B (informative) Example of fibre Bragg grating (FBG) filter technology B.1 Operating principle of FBG B.2 Example of usage of an FBG Figure\u00a0B.1 \u2013 Technology of a fibre Bragg grating <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Figure B.2 \u2013 Application of an optical add\/drop module Figure B.3 \u2013 Application of an OTDR sensor Figure\u00a0B.4 \u2013 Application of the wavelength stabilizer for a 980 nm pump LD <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 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 \u2013 Structure of a multilayer thin-film <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | Figure C.2 \u2013 Application for a GFF for an optical fibre amplifier Figure C.3 \u2013 Application for a BPF for an optical fibre amplifier <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Fibre optic interconnecting devices and passive components. Fibre optic filters. Generic specification<\/b><\/p>\n |