GB/T 18311.31-2007
AbolishedFibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-31: Examinations and measurements - Coupled power ratio measurement for fibre optic sources
纤维光学互连器件和无源器件 基本试验和测量程序 第3-31部分:检查和测量 纤维光学光源耦合功率比测量