Samsung Electronics Co., Ltd.

Young-Joo Chung

Un-Chul Paek

Hyun-Soo Park

Kyung-Ho Kwack

Chang-Seok Kim

Yong-Woo Park

Jong-Ho Kim

Mun-Hyun Do

Seung-Hun Oh

Kyung-Hwan Oh

Man-Seok Seo

Ghie-Hugh Song

Ki-Un Namkoong

Young-Geun Han

An optical fiber for maximizing residual mechanical stress and an optical fiber grating fabricating method using the optical fiber are provided. The optical fiber includes a core formed of silica, for propagating light, and a cladding formed of boron-doped silica, surrounding the core. Alternatively, the optical fiber includes a core formed of phosphorous-doped silica and a cladding formed of silica, surrounding the core.

Optical fiber maximizing residual mechanical stress

Method of fabricating optical fiber gratings maximizing residual mechanical stress in the optical fibers

An erbium-doped optical fiber (EDF) and a fabricating method thereof The erbium-doped optical fiber has a core formed by substantially doping silica with erbium and having gratings formed therein at a predetermined period, for propagating light therethrough, and a cladding surrounding the core and having a lower refractive index than the core. Since the erbium-doped optical fiber acts as a gain flattening filter, an erbium-doped fiber amplifier formed out of the erbium-doped optical fiber obviates the need of splicing an erbium-doped optical fiber with a gain flattening filter.

Erbium-doped optical fiber having gratings formed therein and fabrication method thereof

There is provided a device and method for forming optical fiber anti-symmetric long period gratings by microbending. In the optical fiber grating forming device, a laser system emits a CO laser beam, a lens focuses the CO laser beam on an optical fiber in a predetermined width, an optical fiber support fixes both ends of the optical fiber and imparts tensile strain to the optical fiber, and a controller controls the intensity of the CO laser beam, the focusing distance of the lens, and the tensile force applied by the optical fiber support.

Device and method for forming anti-symmetric long period optical fiber gratings by microbending

There are provided an optical fiber rod overcladding apparatus and method, and an optical fiber drawing method. In the preform rod overcladding method, a preform rod is clamped in a top chuck and leveled, and a glass tube is mounted in a bottom chuck and leveled. The preform rod is coaxially inserted into a glass tube. Then, the glass tube is preheated by the furnace and heated by the burner until the glass tube reaches a softening point. The preform rod is completely sealed in the glass tube by sucking air in a clearance between the preform rod and the glass tube by application of a negative vacuum pressure. Thus, a preform is completed.

Apparatus and method for overcladding optical fiber preform rod and

Growing community of inventors

Kwangju-kwangyokshi, South Korea

Young-Joo Chung