IEC 60793-1-41:2010 

Optical fibres - Part 1-41: Measurement methods and test procedures - Bandwidth


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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.

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Relevant for

fibre optics




Additional information

Publication typeInternational Standard
Publication date2010-08-31
Available language(s)English/French
TC/SCTC 86/SC 86A - Fibres and cablesrss
ICS33.180.10 - Fibres and cables
Stability date  2024
File size1316 KB

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