IEC 61753-091-02-2022
纤维光学互连器件和无源元件.性能标准.第091-02部分:C类非连接的3端口不完全循环单模纤维光学环行器.受控环境
Fibre optic interconnecting devices and passive components - Performance standard - Part 091-02: Non-connectorized 3-port incompletely circulated single-mode fibre optic circulators for category C - C