BS EN 60793-1-45:2003
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Optical fibres Measurement methods and test procedures - Mode field diameter
Hardcopy , PDF
22-02-2018
English
26-04-2004
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INTRODUCTION
1 Scope
2 Normative references
3 Reference test method
4 Apparatus
4.1 Light source
4.2 Input optics
4.3 Input positioner
4.4 Cladding mode stripper
4.5 High-order mode filter
4.6 Output positioner
4.7 Output optics
4.8 Detector
4.9 Computer
5 Sampling and specimens
5.1 Specimen length
5.2 Specimen end face
6 Procedure
7 Calculations
7.1 Method A - Direct far-field scan
7.2 Method B - Variable aperture in the far field
7.3 Method C - Near-field scan
8 Results
8.1 Information to be provided with each measurement
8.2 Information available upon request
9 Specification information
Annex A (normative) Requirements specific to method A -
Mode field diameter by direct far-field scan
Annex B (normative) Requirements specific to method B -
Mode field diameter by variable aperture in the
far field
Annex C (normative) Requirements specific to method C -
Mode field diameter by near-field scan
Annex D (normative) Requirements specific to method D -
Mode field diameter by optical time domain
reflectometer (OTDR)
Annex E (informative) Sample data sets and calculated values
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
Covers uniform requirements for measuring the mode field diameter (MFD) of optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes.
| Committee |
GEL/86/1
|
| DevelopmentNote |
Partially supersedes BS EN 188000 Supersedes 98/262951 DC (05/2004)
|
| DocumentType |
Standard
|
| Pages |
34
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
Establishes requirements for measuring the mode field diameter (MFD) of fibres. Four methods are described: (a) direct far-field scan: (b) variable aperture in the far field: (c) near-field scan: (d) bi-directional backscatter using an optical time domain reflectometer. All four methods apply to type B single-mode fibres, operating near 1310 nm or 1550 nm. The contents of the corrigendum of July 2002 have been included in this copy.
| Standards | Relationship |
| IEC 60793-1-45:2017 | Identical |
| I.S. EN 60793-1-45:2004 | Identical |
| NF EN 60793-1-45 : 2004 | Identical |
| DIN EN 60793-1-45 : 2004 | Identical |
| EN 60793-1-45 : 2018 | Identical |
| IEC 60793-2:2015 | Optical fibres - Part 2: Product specifications - General |
| EN 60793-1-40:2003 | Optical fibres - Part 1-40: Measurement methods and test procedures - Attenuation |
| IEC 60793-1-40:2001 | Optical fibres - Part 1-40: Measurement methods and test procedures - Attenuation |
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