Sumitomo Electric Industries, Limited

Sei Optifrontier Co., Ltd.

Sumitomo Electric Optifrontier Co., Ltd.

Sumitomo Electric Lightwave Corp.

Gouichi Fukumoto

Kenichiro Otsuka

Tetsufumi Tsuzaki

Toshiyuki Miyamoto

Yoshifumi Hishikawa

Tomohiko Ueda

Takashi Kondo

Yoshiyuki Suetsugu

Kazuya Masuda

Takashi Murakami

Tsuneari Ito

An inspecting device has an optical switch selectively coupling a light source unit with each of light input/output ports; a first light detecting unit detecting a first intensity of test light input from an inspecting device on a counterpart side and passing through the optical switch; a second light detecting unit detecting a second intensity of the test light directed from the light source unit toward the optical switch; a third light detecting unit optically coupled to another end of a test optical fiber having one end connected to each of the plurality of light input/output ports, and detecting a third intensity of the test light received from the light source unit via the test optical fiber; and an internal loss recording unit recording a loss of an optical path inside the device obtained on a basis of a difference between the third intensity and the second intensity.

Optical transmission path inspecting system, and optical transmission path inspecting device

A measurement system is a measurement system inspecting an optical transmission line configured by connecting a plurality of optical cables, each of which includes a plurality of optical fibers, wherein the optical transmission line includes a plurality of optical fiber lines configured by connecting the plurality of optical fibers in the plurality of optical cables, the measurement system including: a first measurement device configured to be disposed at a first end of the optical transmission line; and a second measurement device configured to be disposed at a second end of the optical transmission line, wherein the first measurement device and the second measurement device perform a first measurement to inspect whether the optical cable is misconnected, and a second measurement to inspect the plurality of optical fiber lines in a case where it is determined that there is no misconnection in the first measurement.

Measurement system and measurement method

Growing community of inventors

Yokohama, Japan

Gouichi Fukumoto