European Committee for Electrotechnical Standardization（CENELEC）
Latest
EN 61744:2005
Replace
EN 61744-2001
Scope
This International Standard provides standard procedures for the calibration of optical fibre
chromatic dispersion (CD) test sets. It also provides procedures to perform calibration
checking on CD test sets whereby an extension to the test set calibration period may be
obtained.
This standard is applicable to all types of CD test sets, with the exception that measurements
on multimode optical fibres are excluded.
The purpose of this standard is to define a standard procedure for calibrating optical fibre
chromatic dispersion (CD) test sets. The detailed calibration steps used vary according to the
measurement technique used in the CD test set.
Whilst it is acknowledged that chromatic dispersion also occurs in multimode fibre and this
fibre may be measured on many CD test sets, this standard will restrict discussion to single
mode fibre measurements only.
The purpose of the procedures outlined in this standard is to focus manufacturers and users
of CD test sets toward the reduction of measurement uncertainty in chromatic dispersion
determination in optical fibres under all applicable conditions. The procedures apply to
calibration laboratories and to the manufacturers or users of CD test sets for the purpose of
a) calibrating CD test sets;
b) setting specifications of CD test sets;
c) extending the calibration period of an already calibrated CD test set.
Use of the procedures also allows correct evaluation of CD test set uncertainty, relative and
traceable to appropriate (for example, national) standards.
EN 61744:2005 history
2005EN 61744:2005 Calibration of fibre optic chromatic dispersion test sets
2001EN 61744:2001 Calibration of Fibre Optic Chromatic Dispersion Test Sets