Optical fibre amplifiers - Basic specification - Part 1-2: Test methods for gain parameters; electrical spectrum analyzer (IEC 61290-1-2:1998); German version EN 61290-1-2:1998— 9 стр.
Optical amplifier - Test methods - Part 1-2: Power and gain parameters - Electrical spectrum analyzer method (IEC 61290-1-2:2005); German version EN 61290-1-2:2005— 18 стр.
Optical amplifier - Test methods - Part 1-2: Power and gain parameters - Electrical spectrum analyzer method (IEC 61290-1-2:2005); German version EN 61290-1-2:2005— 18 стр.