Mitsubishi Cable Industries, Ltd.

Mitsubishi Jukogyo Kabushiki Kaisha

Takeji Akutsu

Takeshi Satake

Motohiko Yamasaki

Tadahiko Nakai

Takaharu Kinoshita

Masayoshi Hachiwaka

Isao Shirasu

Koichi Suzuki

Tokuji Hayashi

Yoshimasa Tsukamoto

Masakatsu Kimura

'Optical fiber cable'

An optical fiber includes a core () having an oblong rectangular or square cross section and made of quartz, a cladding () surrounding the core (), having a circular outer cross-sectional shape, having a lower refractive index than the core (), and made of resin, and a support layer () surrounding the cladding () and made of quartz.

Optical fiber

An optical fiber includes a core () having an oblong rectangular or square cross section and made of quartz, and a cladding () surrounding the core (), having a circular outer cross-sectional shape, and made of resin.

Optical fiber and method for fabricating the same

A laser guide optical fiber () used for transmitting a laser beam includes an optical fiber body () including a core () and a clad (), and a quartz chip () integrally provided at an end surface on the light entering side of the optical fiber body () and including an optical waveguide portion, where at least the optical waveguide portion of the quartz chip () is made of pure quartz. The quartz chip () includes a light entering surface subjected to surface fusion treatment.

Laser guide optical fiber and laser guide including the same

The present invention provides an optical energy beam transmission path structure comprising at least one pair of optical fibers each having a connection end, and at least one fiber connector for connecting the connection ends of the paired fibers substantially coaxially. A small axial air gap is formed between the connection ends of the paired fibers, and an annular clearance is formed immediately around the connection end of the glass body of each fiber.

Optical energy beam transmission path structure

Growing community of inventors

Hyogo, Japan

Takeji Akutsu