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EN 60793-1-43:2015

Current
Current

The latest, up-to-date edition.

Optical fibres - Part 1-43: Measurement methods and test procedures - Numerical aperture measurement
Published date

05-08-2015

FOREWORD
1 Scope
2 Normative references
3 Overview of method
4 Reference test method
5 Apparatus
6 Sampling and specimens
7 Procedure
8 Calculations
9 Results
10 Specification information
Annex A (informative) - Mapping NA measurement to
         alternative lengths
Annex B (normative) - Product specific default values for
         NA measurement
Annex ZA (normative) - Normative references to
         international publications with their corresponding
         European publications

IEC 60793-1-43:2015 establishes uniform requirements for measuring the numerical aperture of optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes. The numerical aperture (NA) of categories A1, A2, A3 and A4 multimode fibre is an important parameter that describes a fibre's light-gathering ability. It is used to predict launching efficiency, joint loss at splices, and micro/macrobending performance. The numerical aperture is defined by measuring the far-field pattern (NAff). In some cases the theoretical numerical aperture (NAth) is used in the literature, which can be determined from measuring the difference in refractive indexes between the core and cladding. Ideally these two methods should produce the same value. This second edition of IEC 60793-1-43, together with other standards in the IEC 60793-4X series, cancels and replaces the first edition of IEC 60793-1-43, published in 2001, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:- expansion of the scope to include A1, A2, A3 and A4 multimode fibre categories;- addition of measurement parameters of sample length and threshold values, product specific to the variables that are now found in the product specifications;- a new Annex B entitled "Product specific default values for NA measurement";- addition of a new Technique 4 for measuring NA of A4d fibres;- a new Annex A entitled "Mapping NA measurement to alternative lengths" that gives a mapping function to correlate shorter sample length measurements to the length suggested in the reference test method Naff.Keywords: numerical aperture of optical fibre, inspection of fibres and cables

Committee
CLC/TC 86A
DevelopmentNote
Partially supersedes EN 188000. (06/2002) Supersedes UNE EN 188000. (01/2012)
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Current
Supersedes

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BS EN 60793-2-20:2016 Optical fibres Product specifications. Sectional specification for category A2 multimode fibres
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NF EN 50551-1 : 2011 SIMPLEX AND DUPLEX CABLES TO BE USED FOR CORDS - PART 1: BLANK DETAIL SPECIFICATION AND MINIMUM REQUIREMENTS
I.S. EN 50551-1:2011 SIMPLEX AND DUPLEX CABLES TO BE USED FOR CORDS - PART 1: BLANK DETAIL SPECIFICATION AND MINIMUM REQUIREMENTS
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EN 60793-1-1:2017 Optical fibres - Part 1-1: Measurement methods and test procedures - General and guidance
EN 60793-2-20:2016 Optical fibres - Part 2-20: Product specifications - Sectional specification for category A2 multimode fibres
EN 60793-1-40:2003 Optical fibres - Part 1-40: Measurement methods and test procedures - Attenuation
BS EN 60793-1-40:2003 Optical fibres Measurement methods and test procedures - Attenuation
UNE-EN 60793-1-1:2017 Optical fibres - Part 1-1: Measurement methods and test procedures - General and guidance
PREN 2591-100 : 200P1 AEROSPACE SERIES - ELEMENTS OF ELECTRICAL AND OPTICAL CONNECTION - TEST METHODS - PART 100: GENERAL
CEI EN 50551-1 : 2012 SIMPLEX AND DUPLEX CABLES TO BE USED FOR CORDS - PART 1: BLANK DETAIL SPECIFICATION AND MINIMUM REQUIREMENTS
BS EN 60793-1-41:2010 Optical fibres Measurement methods and test procedures. Bandwidth
BS EN 60793-1-1:2017 Optical fibres Measurement methods and test procedures. General and guidance
BS EN 60793-2-30:2015 Optical fibres Product specifications. Sectional specification for category A3 multimode fibres
CEI EN 60793-2-30 : 2016 OPTICAL FIBRES - PART 2-30: PRODUCT SPECIFICATIONS - SECTIONAL SPECIFICATION FOR CATEGORY A3 MULTIMODE FIBRES
I.S. EN 60793-1-40:2004 OPTICAL FIBRES - PART 1-40: MEASUREMENT METHODS AND TEST PROCEDURES - ATTENUATION
CEI EN 60793-1-41 : 2012 OPTICAL FIBRES - PART 1-41: MEASUREMENT METHODS AND TEST PROCEDURES - BANDWIDTH
CEI EN 60793-1-1 : 2010 OPTICAL FIBRES - PART 1-1: MEASUREMENT METHODS AND TEST PROCEDURES - GENERAL AND GUIDANCE
BS EN 60793-2-40:2016 Optical fibres Product specifications. Sectional specification for category A4 multimode fibres
I.S. EN 60793-2-30:2015 OPTICAL FIBRES - PART 2-30: PRODUCT SPECIFICATIONS - SECTIONAL SPECIFICATION FOR CATEGORY A3 MULTIMODE FIBRES
EN 60793-2-10:2017 Optical fibres - Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres
EN 60793-2-40:2016 Optical fibres - Part 2-40: Product specifications - Sectional specification for category A4 multimode fibres
BS EN 60793-2-10:2017 Optical fibres Product specifications. Sectional specification for category A1 multimode fibres
I.S. EN 60793-2-10:2017 OPTICAL FIBRES - PART 2-10: PRODUCT SPECIFICATIONS - SECTIONAL SPECIFICATION FOR CATEGORY A1 MULTIMODE FIBRE
I.S. EN 60793-1-41:2010 OPTICAL FIBRES - PART 1-41: MEASUREMENT METHODS AND TEST PROCEDURES - BANDWIDTH
I.S. EN 60793-2-40:2016 OPTICAL FIBRES - PART 2-40: PRODUCT SPECIFICATIONS - SECTIONAL SPECIFICATION FOR CATEGORY A4 MULTIMODE FIBRES
I.S. EN 60793-1-1:2017 OPTICAL FIBRES - PART 1-1: MEASUREMENT METHODS AND TEST PROCEDURES - GENERAL AND GUIDANCE
EN 60793-1-41:2010 Optical fibres - Part 1-41: Measurement methods and test procedures - Bandwidth
EN 50551-1:2011 Simplex and duplex cables to be used for cords - Part 1: Blank Detail Specification and minimum requirements

IEC 60793-2-20:2015 Optical fibres - Part 2-20: Product specifications - Sectional specification for category A2 multimode fibres
IEC 60793-1-1 : 2017 OPTICAL FIBRES - PART 1-1: MEASUREMENT METHODS AND TEST PROCEDURES - GENERAL AND GUIDANCE
EN 60793-1-21:2002 Optical fibres - Part 1-21: Measurement methods and test procedures - Coating geometry
IEC 60793-2-10:2017 Optical fibres - Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres
EN 60793-1-1:2017 Optical fibres - Part 1-1: Measurement methods and test procedures - General and guidance
IEC 60793-2-30:2015 Optical fibres - Part 2-30: Product specifications - Sectional specification for category A3 multimode fibres
EN 60793-2-40:2016 Optical fibres - Part 2-40: Product specifications - Sectional specification for category A4 multimode fibres
IEC 60793-2-40:2015 Optical fibres - Part 2-40: Product specifications - Sectional specification for category A4 multimode fibres
EN 60793-2-10:2017 Optical fibres - Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres
EN 60793-1-22:2002 Optical fibres - Part 1-22: Measurement methods and test procedures - Length measurement
EN 60793-2-30:2015 Optical fibres - Part 2-30: Product specifications - Sectional specification for category A3 multimode fibres
EN 60793-2-20:2016 Optical fibres - Part 2-20: Product specifications - Sectional specification for category A2 multimode fibres
IEC 60793-1-21:2001 Optical fibres - Part 1-21: Measurement methods and test procedures - Coating geometry
IEC 60793-1-22:2001 Optical fibres - Part 1-22: Measurement methods and test procedures - Length measurement

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