BS EN IEC 61300-3-55:2020
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Fibre optic interconnecting devices and passive components. Basic test and measurement procedures – Examinations and measurements. Polarisation extinction ratio and keying accuracy of polarisation maintaining, passive, optical components
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 32 |
IEC 61300-3-55: 2020 provides methods for measuring the polarisation extinction ratio (PER) of single-mode, polarisation maintaining (PM) optical components based upon PM fibres. This document also provides methods for detecting the input and output orientation of the PM components’ principal axes as well as methods for estimating the keying accuracy, i.e. the angular misalignment between the principal axes and the mechanical reference guide key of the connectors, if these are present.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 5 | English CONTENTS |
| 7 | FOREWORD |
| 9 | INTRODUCTION |
| 10 | 1 Scope 2 Normative references 3 Terms, definitions and abbreviated terms 3.1 Terms and definitions 3.2 Abbreviated terms |
| 11 | 4 General description 5 Measurement principles |
| 12 | 6 Apparatuses 6.1 General 6.2 Method A (reference-less approach) 6.2.1 General |
| 13 | 6.2.2 Light source Figures Figure 1 – Test apparatus for both polarisation extinction ratio measurements and for the determination of the mechanical reference guide keying angular misalignment |
| 14 | 6.2.3 Polariser and analyser 6.2.4 Depolariser 6.2.5 Input and output coupling optics 6.2.6 Power detection system |
| 15 | 6.2.7 Mechanical holders 6.2.8 Reference connector receptacle 6.2.9 PM-DUT 6.3 Method B (comparative approach) 6.3.1 General |
| 16 | 6.3.2 Light source 6.3.3 Polariser, waveplates and analyser 6.3.4 Reference cable Figure 2 – Test apparatus for both polarisation extinction ratiomeasurements and for the determination of the mechanicalreference guide key angular misalignment using a reference |
| 17 | 6.3.5 Coupling optics 6.3.6 Power detection system 6.3.7 Mechanical holders 6.3.8 Reference connector receptacle 6.3.9 PM-DUT 7 PER measurement procedures 7.1 General |
| 18 | 7.2 Method A (reference-less approach) 7.2.1 General 7.2.2 Measurement preparation 7.2.3 Polarisation extinction ratio measurement |
| 19 | 7.3 Method B (comparative approach) 7.3.1 General 7.3.2 Measurement preparation Figure 3 – Typical power transmission curve after analyser |
| 20 | Figure 4 – Schematic initial layout for measurement preparation according to method B |
| 21 | 7.3.3 Polarisation extinction ratio measurement 8 Mechanical key accuracy measurement procedures 8.1 General 8.2 Method A (reference-less approach) 8.2.1 General |
| 22 | 8.2.2 Measurement preparation 8.2.3 Mechanical reference guide key angular offset ( measurement 8.3 Method B (comparative approach) 8.3.1 General Figure 5 – Examples of relative angular misalignments between fibre’s principal axis, mechanical reference guide key, reference receptacle, and analyser’s orientation |
| 23 | 8.3.2 Measurement preparation 8.3.3 Mechanical reference guide key angular offset ( measurement 9 Details to be specified |
| 24 | Annex A (informative)Generation of linear states of polarisation A.1 General A.2 Polariser – Quarter-waveplate – Polariser A.3 Polariser – Half-waveplate Figure A.1 – Arrangement 1 for the generation of a constant intensity,arbitrarily oriented, linear SOP |
| 25 | Figure A.2 – Arrangement 2 for the generation of a constant intensity,arbitrarily oriented, linear SOP |
| 26 | Annex B (informative)Keying accuracy for PM fibre Figure B.1 – Relative position of mechanical reference guide key |
| 27 | Figure B.2 – Relative position of mechanical reference guide key,geometrical and optical axes in one example of PM PANDA fibre Figure B.3 – Relative position of mechanical reference guide key,geometrical and optical axes in one example of Bowtie fibre |
| 28 | Annex C (informative)Calculated extinction ratio versus measured values |
| 29 | Figure C.1 – Calculated extinction ratio versus measured values Figure C.2 – Calculated extinction ratio for a connection of two PM fibre sections |
| 30 | Bibliography |
