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Publication details

Publication CODE Title
IEC 60793-1-41:2024 (2024-04) OPTICAL FIBRES - PART 1-41: MEASUREMENT METHODS AND TEST PROCEDURES - BANDWIDTH
 
Price Excl. VAT Total number of pages, tables and drawings
249.00 € 62.
Description
IEC 60793-1-41:2024 is available as IEC 60793-1-41:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60793-1-41:2024 describes three methods for determining and measuring the modal bandwidth of multimode optical fibres (see IEC 60793-2-10, IEC 60793-2-30, and the IEC 60793'2'40 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)
Method A and method B can be performed using one of two launches: an overfilled launch (OFL) condition or a restricted mode launch (RML) condition. Method C is only defined for A1-OM3 to A1-OM5 multimode fibres and uses a weighted summation of DMD launch responses with the weights corresponding to an overfilled launch condition. The relevant test method and launch condition is chosen according to the type of fibre.
NOTE 1'These test methods are commonly used in production and research facilities and are not easily accomplished in the field.
NOTE 2'OFL has been used for the modal bandwidth value for LED-based applications for many years. However, no single launch condition is representative of the laser (e.g. VCSEL) sources that are used for gigabit and higher rate transmission. This fact drove the development of IEC 60793-1-49 for determining the effective modal bandwidth of laser optimized 50 µm fibres. See IEC 60793-2-10 and IEC 61280-4-1 for more information.
This fourth edition cancels and replaces the third edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) the addition of a direct reference for method A and method B.
Class  C990  (IEC PUBLICATIONS IEC PUBLICATIONS)
Available files
EN/FR version

Status
Status IEC PUBLICATION
Situation Currently active
Replaces  IEC 60793-1-41:2010
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 2024-04-19
ICS-Code (International Standards Classification) 33.180.10
NBN Status New
IEC publication date 2024-04-19
IEC stability date 2027-12-31
IEC file modification date 2024-04-19
IEC last modification date 2024-04-19