Publication details
| Publication CODE |
Title |
| NBN EN 60793-1-42:2013 (2013-04) |
OPTICAL FIBRES
PART 1-42: MEASUREMENT METHODS AND TEST PROCEDURES - CHROMATIC DISPERSION |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
25.00 €
|
3 P. |
Description
Establishes uniform requirements for measuring the chromatic dispersion of optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes.
Chromatic dispersion varies with wavelength. Some methods and implementations measure the group delay as a function of wavelength and the chromatic dispersion and dispersion slope are deduced from the derivatives (with respect to wavelength) of this data. This differentiation is most often done after the data are fitted to a mathematical model. Other implementations can allow direct measurement (of the chromatic dispersion) at each of the required wavelengths.
For some (sub-) categories of fibre, the chromatic dispersion attributes are specified with the parameters of a specific model. In these cases, the relevant recommendation or standard defines the model appropriate for the definition of the specified parameters. For other fibre (sub-) categories, the dispersion is specified to be within a given range for one or more specified wavelength intervals. In the latter case, either direct measurements may be made at the wavelength extremes or some fitting model may be used to either allow group delay measurement methods or implementations, or to allow storage of a reduced set of parameters that may be used to calculate the interpolated dispersion for particular wavelengths which may not have actual direct measurement values.
Annex D gives a general description of chromatic dispersion fitting and outlines a number of fitting equations suitable for use with any of the measurement methods or fibre categories.
This standard gives three methods for measuring chromatic dispersion:
- method A: phase shift;
- method B: spectral group delay in the time domain;
- method C: differential phase shift.
Methods A, B, and C apply to the measurement of chromatic dispersion of the following fibres from IEC 60793-2 over a specified wavelength range:
- category A1 graded-index multimode fibres;
- sub-category A4f, A4g and A4h multimode fibres;
- category B1, B2, B4, B5 and sub-categories B6_a1 and B6_a2 single-mode fibres.
The methods can be applied to laboratory, factory and field measurements of chromatic dispersion, and the wavelength range of the measurements can be tailored as required.
Measurements are made at temperature as stated in Table 1 of IEC 60793-1-1:2008, Standard range of atmospheric conditions.
The methods are suitable for fibre or cable lengths greater than 1 km. They may also be applied to shorter lengths, but accuracy and repeatability may be compromised.
Information common to all methods is contained in Clauses 1 to 8, and information pertaining to each individual method appears in Annexes A, B and C, respectively.
|
| Class |
C93
(TELECOMMUNICATIONS - ELECTRONIC PASSIVE ELECTRONIC COMPONENTS AND OPTICAL FIBRES (SEE ALSO C90))
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Available files
ATTENTION: Belgian registered standards (NBN EN or NBN HD) are generally
only available in English or French. Only the cover page is translated
and the document itself is in English or in French.
Very important notice: 98% of the text of the NBN EN 55XXX,
NBN EN 6XXXX comes from the IEC text which is NOT included.
This text can be ordered here:
IEC 60793-1-42:2013.
For the series NBN EN 50XXX, the standards are however complete.
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EN version
|
FR version
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DE version
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Status
| Status |
Registered trilingual Belgian standard EN or FR or DE |
| Situation |
Currently active
Replaces
NBN EN 60793-1-42:2007
|
|
Origin
| Committee |
TC 86/SC 86A
FIBRES AND CABLES (optical)
|
| Responsible |
Monsieur POLART Jules, Ingénieur
Chaussée de Brunehault, 380
7140
MORLANWELZ
Phone: 064 / 45 16 83
Fax: 064 / 45 16 83
E-mail: jules.polart@ceb-bec.be
|
Approval
| BEC Approval |
2013-02-28 |
| NBN Approval |
2013-06-21 |
| Belgian Official Journal |
2013-08-28 |
| Registration |
136700 |
| ICS-Code (International Standards Classification) |
33.180.10
|
| NBN Status |
New |
|
| Date of ratification (d.o.r.) |
2013-02-28 |
| Date of availability (d.a.v.) |
2013-04-05 |
| Date of announcement (d.o.a.) |
2013-05-28 |
| Date of publication (d.o.p.) |
2013-11-28 |
| Date of withdrawal former edition (d.o.w.) |
2016-02-28 |
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Correspondences with international standards
| Relation |
International standard |
Date |
| is identical to |
EN 60793-1-42:2013
|
2013-04-05 |
| is identical to |
EN 60793-1-42:2013/AC:2013
|
|
| is identical to |
IEC 60793-1-42:2013/ed. 3.0
|
2013-01-24 |
Relations to belgian/foreign publications
| Type |
Origin |
Code |
Date |
| Standard |
Belgium |
NBN EN 60793-1-1 |
|
| Standard |
Belgium |
NBN EN 60793-1-41 |
|
| Standard |
Belgium |
NBN EN 60793-2 |
|
|
