2016DIN EN 61290-1-1:2016 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
2007DIN EN 61290-1-1:2007 Optical amplifiers - Test methods - Part 1-1: Power and gain parameters - Optical spectrum analyzer method (IEC 61290-1-1:2006); German version EN 61290-1-1:2006