International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 60793-1-41:2010
Title Optical fibres - Part 1-41: Measurement methods and test procedures - Bandwidth
Project Number 22745
Abstract/Scope IEC 60793-1-41:2010 describes three methods for determining and measuring the modal bandwidth of multimode optical fibres (see IEC 60793-2-10, IEC 60793-30 series and IEC 60793-40 series). The baseband frequency response is directly measured in the frequency domain by determining the fibre response to a sinusoidaly modulated light source. The baseband response can also be measured by observing the broadening of a narrow pulse of light. The calculated response is determined using differential mode delay (DMD) data. The three methods are: - Method A - Time domain (pulse distortion) measurement - Method B - Frequency-domain measurement - Method C - Overfilled launch modal bandwidth calculated from differential mode delay (OMBc). The main change with respect to the previous edition is the addition of a third method for determining modal bandwidth based on DMD data and to improve measurement procedures for A4 fibres. This standard should be read in conjunction with IEC 60793-1-1 and IEC 60793-1-2, which cover generic specifications.


Current Stage code 6060
Current Stage code date 2010-10-08
Current Stage code deadline 2011-07-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/SC 86A
Reference Document IEC 60793-1-41:2010 (EQV)
ICS 33.180.10 - Fibres and cables
Keywords Optical fibre; Bandwidth; Measurement; Test
Note Supersedes EN 60793-1-41:2003
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2010-10-08 2011-07-01 export to doc file  EN  FR  DE
5099 2010-10-01 2010-12-01  
5060 2010-05-28 2010-06-16 export to doc file  EN
5020 2009-12-04 2010-05-07  
1090 2009-12-01 2009-12-04  

Implementation Dates

date of Ratification (DOR) (1) 2010-10-01
date of Availability (DAV) (2) 2010-10-08
date of Announcement (DOA) (3) 2011-01-01
date of Publication (DOP) (4) 2011-07-01
date of Withdrawal (DOW) (5) 2013-10-01


Supersedes EN 60793-1-41:2003
Superseded by  
Normative reference (6) EN 60793-1-20:2002
EN 60793-1-42:2002
EN 60793-1-43:2002
EN 60793-1-49

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.