The Furukawa Electric Co., Ltd.

Xu Jie

Kenji Suzuki

Jun Takahashi

Akihiro Murakami

Toshihiro Mikami

Takayuki Andou

Takanobu Yamazaki

A lensed optical fiber comprised of an optical fiber having a core and a cladding and a lens portion formed at its front end, a process of production of a lensed optical fiber, an apparatus for its production, and a laser diode module. The lens portion of the lensed optical fiber is comprised of a substantially flat portion formed at an end face of the core, slanting faces formed at an end face of the cladding, and convex curved faces including part of the core between the substantially flat portion and slanting faces.

Lensed optical fiber having high coupling efficiency, process of production and apparatus for production of same, and laser diode module

A sheathed optical fiber cutting method and apparatus for cutting the sheathed optical fiber. In one embodiment, the sheathed optical fiber is rotated around its center axis against a cutting blade. An incision is made in an area of the sheathed optical fiber that is under tension from being bent. The incision makes a cut that is flat and perpendicular to the axis of the optical fiber. In one embodiment, the blade for making the incision is mounted in a vibration generator.

Sheathed optical fiber cutting method and apparatus

Provided is an optical connector end machining apparatus (1) which comprises a removing section (10) for removing an adhesive agent swollen on the respective end faces of optical connectors, a polishing section (20) located adjacent to the removing section and adapted to grind and polish the end faces of the optical connectors cleared of the adhesive agent, and a switching section (30) including a holding member (31) for holding the optical connectors and adapted collectively to shift the optical connectors held by means of the holding member to the removing section or the polishing section, the holding member releasably holding the optical connectors in a manner such that the end face of each optical connector projects and causing the respective projecting end faces of the optical connectors to move integrally toward and away from the removing section or the polishing section. Also provided is a holding fixture for an optical connector used in the end machining apparatus, the holding fixture comprising first and second cylindrical bodies arranged adjacent to each other and a chuck inserted in the first cylindrical body with both ends thereof projecting, one end side of the chuck being removably screwed to the second cylindrical body and the other end side holding the optical connector, the force of the chuck to hold the optical connector being adjustable.

End machining apparatus and holding fixtures for optical connectors

This invention provides a method of manufacturing an optical connector including the steps of obtaining an optical connector having a fiber insertion hole, inserting an optical fiber into the fiber insertion hole of the optical connector such that the fiber end face of the optical fiber is exposed, and polishing the fiber end face of the optical fiber with a grindstone made by mixing cerium oxide abrasive grains and at least one type of abrasive grains selected from the group consisting of chromium oxide abrasive grains, zirconia abrasive grains, and alumina abrasive grains.

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Ichihara, Japan

Xu Jie