Seiko Instruments Inc

Mitsubishi Cable Industries, Ltd.

Yoshio Kashima

Nobuo Suzuki

Akira Sugiyama

Osamu Murata

Eiji Iri

Toyokazu Iwakiri

Yuji Kakutani

Ikuo Betsui

Yasunari Nobuoka

The present invention relates to a connector for connecting optical fiber ribbons to each other, each of ribbons including a plurality of optical fibers spaced in line, and a method of attaching the same. The connector comprises an alignment member for placing the optical fibers in the grooves formed therein, a deformable metal member disposed on the optical fibers in the grooves of the alignment member, and a ferrule incorporated at the front end pportion with both the alignment member and the deformable metal member and adapted at the rear end portion to retain the unexposed portion of the optical fiber ribbon. Accordingly, the optical fibers are fixedly held between the alignment member and the deformable metal member while the ribbon is fixedly held by the rear end portion of the ferrule. The front ends of the optical fibers are cut at the front end of the ferrule. As the result, the optical fiber ribbon can remain fastened firmly and securely for a long period of time and additionally, its attaching work can be made with ease within a short time.

Connector for optical fiber ribbon and a method of attaching the same

An optical attenuator for attenuating optical power by providing an air gap between coupled fiber ends. Both the end faces are allowed to have an inclination, thereby providing an optical attenuator with less reflected light and multiple reflection between coupled fibers.

Optical attenuator

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Matsudo, Japan

Yoshio Kashima