IEC/TR 62547:2013(E) describes two methods for the measurement of the sensitivity of single-mode optical fibres to high-power damage at bends:
- test method 1 - Failure time characterisation as a function of the launch power and bend conditions (bend angle and bend diameter);
- test method 2 - Equilibrium temperature measurement. Results from the two methods can only be compared qualitatively. This second edition cancels and replaces the first edition published in 2009, and constitutes a technical revision. The main changes with respect to the previous edition are:
- updates related to B6 (bend-insensitive) category single-mode fibres);
- update to analysis for test method 2: Maximum temperature specification.Key words: sensitivity of single-mode optical fibres to high-power damage at bends