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BSI 24/30487672 DC 2024

BSI 24/30487672 DC 2024

$13.70

BS EN 4533-002 Aerospace series – Fibre optic systems – Handbook – Part 002: Test and measurement

Published By Publication Date Number of Pages
BSI 2024 49
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This document examines the requirements to enable accurate measurement of fibre optic links from start of life and during the life cycle of the system from installation and through-service. This document explains the issues associated with optical link measurement and provides techniques to address these issues. This document discusses the measurement of key parameters associated with the passive layer (i.e. transmission of light through an optical harness). This document does not discuss systems tests, e.g. bit error rates.

PDF Catalog

PDF Pages PDF Title
7 1 Scope
2 Normative references
3 Terms and definitions
4 Fibre types
8 5 Test and measurement: key parameters
5.1 Insertion loss (I.L.)
5.1.1 General
9 5.1.2 Importance of low-insertion loss
5.1.3 Measurement techniques
5.2 Return or reflection loss
5.2.1 General
10 5.2.2 Importance of high-return loss
5.2.3 Measurement techniques
5.2.4 Return loss versus reflectance
5.3 Optical power measurement
5.3.1 General
11 5.3.2 Measurement techniques
5.3.3 Photodetectors requirements
13 5.4 Light distribution
5.5 Temporal measurements
6 Test and measurement in single-mode systems
14 7 Test and measurement in multi-mode systems
7.1 General
7.2 Launch conditions
18 7.3 Generating suitable launch conditions
19 7.4 Examples of suitable launch conditions for aerospace testing
24 8 Testing network paths: reflectometry and footprinting
8.1 General
25 8.2 OTDRs
8.2.1 General
8.2.2 Example trace
26 8.2.3 Important properties
27 8.2.4 Dynamic range
8.2.5 Resolution
8.2.6 Dead zones
28 8.2.7 Discussion
8.3 OFDRs
8.3.1 General
30 8.3.2 Discussion
8.4 Footprinting
31 9 General considerations for test and measurement in fibre optic systems
9.1 General
9.2 Instrument-issues
9.3 Test leads
32 9.4 Adapters (uniters)
9.5 Connectors
34 9.6 Filters and test leads
10 Practical testing techniques
10.1 General
35 10.2 Insertion loss
10.3 Different insertion loss techniques
40 10.4 Single connector insertion loss
10.5 Mode conditioning in test leads
41 10.6 Return loss schemes
43 11 Reporting arrangements
12 Techniques for system design
12.1 General
12.2 Interpretation of component data sheets
44 12.3 Computer modelling
46 13 Appendix: matrices

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BSI 24/30487672 DC 2024
$13.70