This part of IEC 60793 establishes uniform requirements for measuring the cut-off wavelength of single-mode optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes.This standard gives the methods for measuring the cut-off wavelength of fibre and cableThere are two methods for measuring cable cut-off wavelength, ë cc:• Method A: using uncabled fibre;• Method B: using cabled fibre.There is only one method (Method C) for measuring fibre cut-off wavelength, ë c.The test method in this standard describes procedures for determining the cut-off wavelength of a sample fibre in either an uncabled condition (ë c) or in a cable
DS/EN 60793-1-44:2011 history
2011DS/EN 60793-1-44:2011 Optical fibres - Part 1-44: Measurement methods and test procedures - Cut-off wavelength