BS EN 60793-1-44:2011
$142.49
Optical fibres – Measurement methods and test procedures. Cut-off wavelength
| Published By | Publication Date | Number of Pages |
| BSI | 2011 | 26 |
IEC 60793-1-44:2011 establishes uniform requirements for measuring the cut-off wavelength of single-mode optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes. This standard gives the methods for measuring the cut-off wavelength of fibre and cable. This edition constitutes a technical revision. The main change with respect to the previous edition is the withdrawal of Annex D. This publication is to be read in conjunction with /2.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | CONTENTS |
| 8 | 1 Scope 2 Normative references 3 Background |
| 9 | 4 Overview of methods 5 Mapping functions |
| 10 | 6 Reference test method 7 Apparatus 7.1 Light source 7.2 Modulation 7.3 Launch optics 7.4 Support and positioning apparatus 7.5 Cladding mode stripper |
| 11 | 7.6 Deployment mandrel Figures Figure 1 – Deployment configuration for cable cut-off wavelength, method A |
| 12 | Figure 2 – Deployment configuration for cable cut-off wavelength, method B Figure 3 – Default configuration to measure lambdac |
| 13 | 7.7 Detection optics 7.8 Detector assembly and signal detection electronics 8 Sampling and specimens 8.1 Specimen length Figure 4 – Deployment configurations for fibre cut-off measurement |
| 14 | 8.2 Specimen end face 9 Procedure 9.1 Positioning of specimen in apparatus 9.2 Measurement of output power Figure 5 – Cut-off wavelength using the bend-reference technique |
| 15 | 10 Calculations 10.1 Bend-reference technique Figure 6 – Cut-off wavelength using the multimode-reference technique |
| 16 | 10.2 Multimode-reference technique 10.3 Curve-fitting technique for improved precision (optional) |
| 19 | 11 Results 11.1 Report the following information with each measurement: 11.2 The following information shall be available upon request: |
| 20 | 12 Specification information |
| 21 | Annex A (normative) Requirements specific to method A – Cable cut-off wavelength, lambdacc, using uncabled fibre |
| 22 | Annex B (normative) Requirements specific to method B – Cable cut-off wavelength, lambda cc, using cabled fibre |
| 23 | Annex C (normative) Requirements specific to method C – Fibre cut-off wavelength,lambdac |
| 24 | Bibliography |
