EN 61290-10-1:2003 Optical amplifiers Test methods Part 10-1: Multichannel parameters Pulse method using an optical switch and optical spectrum analyzer
2009EN 61290-10-1:2009 Optical amplifiers - Test methods - Part 10-1: Multichannel parameters - Pulse method using an optical switch and optical spectrum analyzer
2003EN 61290-10-1:2003 Optical amplifiers Test methods Part 10-1: Multichannel parameters Pulse method using an optical switch and optical spectrum analyzer