公开(公告)号：WO1997023965A1

公开(公告)日：1997-07-03

申请号：PCT/GB1996003145

申请日：1996-12-19

Applicant: STC SUBMARINE SYSTEMS LIMITED ,  SPENCER, Geofrrey

Inventor： STC SUBMARINE SYSTEMS LIMITED

IPC: H04B10/08

CPC classification number: H04B10/2503 ,  H04B10/071

Abstract: A bi-directional optical signal transmission network comprises an outbound (12) and an inbound (14) fibre each including an optical amplifier/repeater (18/24). An optical coupling (30, 38, 40) communicates between one of the fibres (12), to the output side of the amplifier/repeater (18) and the other fibre (14). The coupling includes a filter (40) which is arranged to permit transfer of a test signal wavelength between the outbound (12) and the inbound (14) fibre but which prevents transfer of unwanted traffic signal.

Abstract translation: 双向光信号传输网络包括每个包括光放大器/中继器（18/24）的出站（12）和入站（14）光纤。 光耦合器（30,38,40）在一个光纤（12）之间连接到放大器/中继器（18）的输出侧和另一个光纤（14）。 耦合器包括滤波器（40），其被布置成允许在出站（12）和入站（14）光纤之间传送测试信号波长，但是防止不期望的交通信号的传送。