{"id":248194,"date":"2024-10-19T16:20:54","date_gmt":"2024-10-19T16:20:54","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-61280-4-42017\/"},"modified":"2024-10-25T11:29:44","modified_gmt":"2024-10-25T11:29:44","slug":"bs-en-61280-4-42017","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-61280-4-42017\/","title":{"rendered":"BS EN 61280-4-4:2017"},"content":{"rendered":"
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
---|---|---|---|---|---|---|---|
2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
15<\/td>\n | 1 Scope 2 Normative references 3 Terms, definitions, symbols and abbreviated terms 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
16<\/td>\n | 3.2 Symbols and abbreviated terms <\/td>\n<\/tr>\n | ||||||
17<\/td>\n | 4 Background on PMD properties <\/td>\n<\/tr>\n | ||||||
18<\/td>\n | 5 Measurement methods 5.1 Methods of measuring PMD 5.1.1 General <\/td>\n<\/tr>\n | ||||||
19<\/td>\n | 5.1.2 Method A: Fixed analyzer with Fourier transformation (FA-FT) 5.1.3 Method B: Stokes parameters evaluation (SPE) <\/td>\n<\/tr>\n | ||||||
20<\/td>\n | 5.1.4 Method C: Interferometric 5.1.5 Method D: Stokes parameter evaluation using back-reflected light 5.1.6 Method E: Modulated phase-shift technique 5.1.7 Method F: Polarization phase shift (PPS) <\/td>\n<\/tr>\n | ||||||
21<\/td>\n | 5.1.8 Method G: Wavelength scanning OTDR and SOP Analysis (WSOSA) 5.2 Document structure 5.3 Reference test method 6 Measurement configurations 6.1 Passive cabling link Figures Figure 1 \u2013 Typical passive cabling link configuration <\/td>\n<\/tr>\n | ||||||
22<\/td>\n | 6.2 Link including amplifiers 6.3 Link including chromatic dispersion compensating modules 6.3.1 General 6.3.2 Grating based DCM 6.4 Link including ROADMs 6.4.1 General Figure 2 \u2013 Example configuration of link including amplifiers <\/td>\n<\/tr>\n | ||||||
23<\/td>\n | 6.4.2 Multi-channel point to point configuration 6.4.3 Single channel configuration 7 Measurement considerations 7.1 General 7.2 Wavelength range 7.3 PMD measurement range <\/td>\n<\/tr>\n | ||||||
24<\/td>\n | 7.4 Measurement dynamic range 7.5 Fibre movement 7.6 Input and output SOP scrambling 7.6.1 General 7.6.2 Polarizers\/scramblers <\/td>\n<\/tr>\n | ||||||
25<\/td>\n | 7.6.3 The 9-states Mueller set 7.6.4 Random scrambling 7.7 Polarization dependent loss 7.8 Amplifier considerations 7.8.1 General 7.8.2 Optical isolators 7.8.3 Wavelength range 7.8.4 Power levels <\/td>\n<\/tr>\n | ||||||
26<\/td>\n | 7.8.5 Amplified spontaneous emission (ASE) noise 7.9 Considerations on location of equipment 8 Apparatus 8.1 General 8.2 Light source and polarizers <\/td>\n<\/tr>\n | ||||||
27<\/td>\n | 8.3 Input optics 8.4 Cladding mode stripper 8.5 High-order mode filter 8.6 Output connection <\/td>\n<\/tr>\n | ||||||
28<\/td>\n | 8.7 Output optics 8.8 Detector 8.9 Computer or test platform 8.10 Means to reduce the effects of amplified spontaneous emission 9 Sampling and specimens 10 Procedure <\/td>\n<\/tr>\n | ||||||
29<\/td>\n | 11 Calculation or interpretation of results 12 Documentation 12.1 Information required for each measurement 12.2 Information to be available <\/td>\n<\/tr>\n | ||||||
30<\/td>\n | 13 Specification information <\/td>\n<\/tr>\n | ||||||
31<\/td>\n | Annex A (normative) Fixed analyzer method A.1 Apparatus A.1.1 Block diagrams <\/td>\n<\/tr>\n | ||||||
33<\/td>\n | A.1.2 Light source Figure A.1 \u2013 Block diagrams for fixed analyzer <\/td>\n<\/tr>\n | ||||||
34<\/td>\n | A.1.3 Analyzer A.1.4 Optional polarization control at the input and output of the link under test A.2 Procedure A.2.1 Wavelength range and increment <\/td>\n<\/tr>\n | ||||||
35<\/td>\n | A.2.2 Complete the scans <\/td>\n<\/tr>\n | ||||||
36<\/td>\n | A.3 Calculations \u2013 Fourier transform A.3.1 General Figure A.2 \u2013 Example of the R-function for the fixed analyzer method <\/td>\n<\/tr>\n | ||||||
37<\/td>\n | A.3.2 Data pre-processing and Fourier transformation A.3.3 Transform data fitting <\/td>\n<\/tr>\n | ||||||
38<\/td>\n | Figure A.3 \u2013 A chirped sine wave <\/td>\n<\/tr>\n | ||||||
39<\/td>\n | A.3.4 Spectral range Figure A.4 \u2013 PMD by Fourier analysis <\/td>\n<\/tr>\n | ||||||
41<\/td>\n | Annex B (normative) Stokes parameter evaluation method B.1 Apparatus B.1.1 Block diagrams Figure B.1 \u2013 Block diagram for Method B using a narrowband (tuneable laser) source Figure B.2 \u2013 Block diagram for Method B using a broadband (ASE) source <\/td>\n<\/tr>\n | ||||||
42<\/td>\n | B.1.2 Light source B.1.3 Polarimeter B.2 Procedure <\/td>\n<\/tr>\n | ||||||
43<\/td>\n | B.3 Calculations B.3.1 General B.3.2 Jones matrix eigenanalysis (JME) <\/td>\n<\/tr>\n | ||||||
45<\/td>\n | B.3.3 Poincar\u00e9 sphere analysis (PSA) DGD calculation <\/td>\n<\/tr>\n | ||||||
46<\/td>\n | Annex C (normative) Interferometric method C.1 General Figure C.1 \u2013 Generic set-up for Method C (INTY) <\/td>\n<\/tr>\n | ||||||
47<\/td>\n | C.2 Traditional analysis (TINTY) C.2.1 Apparatus Figure C.2 \u2013 Schematic diagram for Method C (TINTY) <\/td>\n<\/tr>\n | ||||||
48<\/td>\n | C.2.2 Procedure <\/td>\n<\/tr>\n | ||||||
49<\/td>\n | C.2.3 Calculations Figure C.3 \u2013 Typical data obtained by Method C (TINTY) <\/td>\n<\/tr>\n | ||||||
50<\/td>\n | C.3 General analysis (GINTY) C.3.1 Benefit C.3.2 Apparatus Figure C.4 \u2013 Schematic diagram for Method C (GINTY) <\/td>\n<\/tr>\n | ||||||
51<\/td>\n | C.3.3 Procedure <\/td>\n<\/tr>\n | ||||||
52<\/td>\n | C.3.4 Calculations Figure C.5 \u2013 Typical random-mode-coupling data obtained by Method C (GINTY) Figure C.6 \u2013 Typical mixed-mode-coupling data obtained by Method C (GINTY) <\/td>\n<\/tr>\n | ||||||
54<\/td>\n | Annex D (informative) Stokes parameter evaluation method using back-reflected light D.1 Utility D.2 Apparatus D.2.1 Block diagram D.2.2 Directional coupler D.2.3 Angled connector D.2.4 Far-end termination Figure D.1 \u2013 Layout for Method D <\/td>\n<\/tr>\n | ||||||
55<\/td>\n | D.3 Procedure D.4 Calculation and interpretation of results <\/td>\n<\/tr>\n | ||||||
56<\/td>\n | Annex E (informative) Modulation phase-shift method E.1 Apparatus E.1.1 Overview and block diagrams Figure E.1 \u2013 Basic apparatus <\/td>\n<\/tr>\n | ||||||
57<\/td>\n | E.1.2 Light source(s) Figure E.2 \u2013 Apparatus layout for polarization modulation <\/td>\n<\/tr>\n | ||||||
58<\/td>\n | E.1.3 Modulation <\/td>\n<\/tr>\n | ||||||
59<\/td>\n | E.1.4 Polarization control E.1.5 Input and output optics <\/td>\n<\/tr>\n | ||||||
60<\/td>\n | E.1.6 Optical detector and phase detection electronics E.1.7 Reference signal E.2 Procedure E.2.1 Modulation frequency E.2.2 Scan the wavelengths and measure DGD <\/td>\n<\/tr>\n | ||||||
62<\/td>\n | Figure E.3 \u2013 Mueller states on Poincar\u00e9 sphere Table E.1 \u2013 Example of Mueller set <\/td>\n<\/tr>\n | ||||||
63<\/td>\n | E.2.3 Calibration E.3 Calculations E.3.1 DGD calculations Figure E.4 \u2013 DGD versus wavelength Figure E.5 \u2013 DGD in histogram format <\/td>\n<\/tr>\n | ||||||
64<\/td>\n | E.3.2 PMD calculation <\/td>\n<\/tr>\n | ||||||
65<\/td>\n | Annex F (informative) Polarization phase shift method F.1 Apparatus F.1.1 Block diagram F.1.2 Light source F.1.3 Modulation Figure F.1 \u2013 Block diagram for Method F (polarization phase shift method) <\/td>\n<\/tr>\n | ||||||
66<\/td>\n | F.1.4 Polarization control F.1.5 Output optics F.1.6 Optical detectors F.1.7 Amplitude and phase comparator <\/td>\n<\/tr>\n | ||||||
67<\/td>\n | F.1.8 Reference signal F.2 Procedure F.2.1 Modulation frequency F.2.2 Wavelength increment F.2.3 Scanning wavelengths and measuring DGDs <\/td>\n<\/tr>\n | ||||||
68<\/td>\n | F.2.4 Calibration F.3 Calculations F.3.1 Results overview <\/td>\n<\/tr>\n | ||||||
69<\/td>\n | F.3.2 DGD determination Figure F.2 \u2013 DGD versus wavelength for a random mode coupling device <\/td>\n<\/tr>\n | ||||||
70<\/td>\n | F.3.3 PMD calculation <\/td>\n<\/tr>\n | ||||||
71<\/td>\n | Annex G (normative) Wavelength scanning OTDR and SOP analysis (WSOSA) PMD test method G.1 General G.2 Apparatus G.2.1 Block diagram Figure G.1 \u2013 Illustration of the frequency domain and parameters for WSOSA <\/td>\n<\/tr>\n | ||||||
72<\/td>\n | G.2.2 Light source G.2.3 Launch polarization Figure G.2 \u2212 Typical generic experimental implementation for WSOSA <\/td>\n<\/tr>\n | ||||||
73<\/td>\n | G.2.4 Polarization scrambling G.2.5 Input\/output optics G.3 Specimen stability G.4 Procedure G.4.1 Set instrument parameters <\/td>\n<\/tr>\n | ||||||
74<\/td>\n | G.4.2 Action of the instrument after measurement initiation <\/td>\n<\/tr>\n | ||||||
76<\/td>\n | G.5 Calculations G.5.1 Power normalisation Figure G.3 \u2013 Typical power measurement results <\/td>\n<\/tr>\n | ||||||
77<\/td>\n | G.5.2 Transmission differences Figure G.4 \u2212 Typical s(\u03c9) for random I\/O-SOP <\/td>\n<\/tr>\n | ||||||
78<\/td>\n | G.5.3 Mean-square transmission difference and round trip PMD Figure G.5 \u2212 Typical transmission difference for a frequency pair and I\/O-SOP <\/td>\n<\/tr>\n | ||||||
79<\/td>\n | G.5.4 Determination of PMD G.6 Procedures for measuring PMD on installed aerial links G.6.1 Instability compensation <\/td>\n<\/tr>\n | ||||||
80<\/td>\n | G.6.2 Approaches to reducing the effects of instabilities <\/td>\n<\/tr>\n | ||||||
81<\/td>\n | Figure G.6 \u2212 Example of 2-pulse implementation in presence of instabilities <\/td>\n<\/tr>\n | ||||||
82<\/td>\n | Annex H (informative) PMD determination by Method C H.1 General H.2 Traditional analysis <\/td>\n<\/tr>\n | ||||||
84<\/td>\n | H.3 General analysis <\/td>\n<\/tr>\n | ||||||
86<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Fibre optic communication subsystem test procedures – Cable plants and links. Polarization mode dispersion measurement for installed links<\/b><\/p>\n |