Optical amplifiers - Test methods - Part 1-3: Power and gain parameters - Optical power meter method (IEC 61290-1-3:2005); German version EN 61290-1-3:2005— 19 стр.
Fibre optic active components and devices - Package and interface standards - Part 1: General and guidance (IEC 62148-1:2017); German version EN IEC 62148-1:2018— 13 стр.