Optical amplifiers - Test methods - Part 1-1: Power and gain parameters - Optical spectrum analyzer method (IEC 61290-1-1:2015); German version EN 61290-1-1:2015— 14 стр.
Optical amplifiers - Test methods - Part 4-1: Gain transient parameters - Two-wavelength method (IEC 61290-4-1:2016); German version EN 61290-4-1:2016— 22 стр.