Patent ID: 11965801
Assignee: SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G

Claim 0:
1. A measurement system that inspects an optical transmission line including a plurality of optical fiber lines, the system comprising:
a measurement device including a light source configured to output testing light, and a first power meter configured to measure intensity of light; and
one or a plurality of connection members each configured to optically connect a pair of optical fiber lines of the plurality of optical fiber lines,
wherein a first optical fiber line of the pair of optical fiber lines includes a first end and a second end opposite to the first end,
a second optical fiber line of the pair of optical fiber lines includes a third end and a fourth end opposite to the third end,
the one or plurality of connection members optically connect the second end to the fourth end,
the light source causes the testing light to be incident on the first end,
the first power meter measures first intensity which is intensity of first output light output from the third end by causing the testing light to propagate through the pair of optical fiber lines,
each of the one or plurality of connection members includes a coupler having two inputs and two outputs,
the two outputs of the coupler are optically connected to each other, and
the second end and the fourth end are optically connected to the two inputs of the coupler,
the measurement device further includes a second power meter configured to measure second intensity which is intensity of second output light output from the first end, and
the second output light is obtained by demultiplexing the testing light by the coupler.