JPS6274205U

JPS6274205U -

Info

Publication number: JPS6274205U
Application number: JP16500985U
Authority: JP
Priority date: 1985-10-29
Filing date: 1985-10-29
Publication date: 1987-05-12

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す模式図、第２
図及び第３図は本考案の他の実施例を示す模式図
、第４図は一般の光スターカプラを示す図、第５
図は従来の光スターカプラを示す図である。１……スターカプラ、１_１乃至１ｎ……入力端
、１′_１乃至１ｎ′……出力端、２_１乃至２ｎ…
…送信装置、３_１乃至３ｎ……受信装置。 Fig. 1 is a schematic diagram showing an embodiment of the present invention;
3 and 3 are schematic diagrams showing other embodiments of the present invention, FIG. 4 is a diagram showing a general optical star coupler, and FIG.
The figure shows a conventional optical star coupler. 1... Star coupler, 1 ₁ to 1n... Input end, 1' ₁ to 1n'... Output end, 2 ₁ to 2n...
...Transmitting device, 3 ₁ to 3n...Receiving device.

Claims

[Scope of claims for utility model registration] (1) Having a plurality of input ends and a plurality of output ends,
In an optical star coupler in which an optical signal input from one input terminal is output from a predetermined number of output terminals, an output terminal among the plurality of output terminals that does not transmit the output optical signal to other devices. and at least one input terminal to which no optical signal is input among the plurality of input terminals are connected to form a closed loop for optical signals. (2) Utility model registration claim No. 1, characterized in that all output terminals that do not transmit output optical signals to other devices are connected to at least one input terminal that does not receive optical signals. Optical star coupler described in section 1).