Electronics and Telecommunications Research Institute

Korea Telecommunication Authority

Myung-Yung Jeong

Tae-Goo Choy

Seung-Ho Ahn

Oh-Gone Chun

Sang-Ho Park

Ahn Seung-Ho

Chun Oh-Gone

Hak-Seok Kim

An improved multifiber optical connector is disclosed which concurrently transmits an optical signal and provides for optical signal transmission with a lower transmission loss. The connector includes an adapter including openings into which a plug is inserted, a pass through hole formed in a central portion of the multifiber optical connector, and engaging holes formed in portions of the multifiber optical connector, a plug, which engages the openings of the adapter, including a through hole, into which optical fibers are inserted, formed in a central portion of the plug, an engaging portion having an engaging jaw portion for connecting the plug to the adapter and formed at one end of the plug, a plug housing for receiving a body of the plug, a ferrule, which is disposed in one end of the plug, having a plurality of holes into which a core of the optical fibers are inserted to provide protection and alignment, an optical fiber alignment device inserted into the pass through hole of the adapter, for surrounding an outer portion of the ferrule disposed at one end of the plug inserted into the adapter and for aligning the optical fiber inserted into the ferrule, and an optical cable protector surrounding an outer portion of the optical cable connected for protecting against breakage of the optical cable.

Multifiber optical connector

A multifiber optical connector for optical ribbon cable which must be essentially used in the optical line that requires a repeated connection and separation to transfer or to interrupt simultaneously optical signals with low loss by attaching to an end of the optical ribbon cable arranged in a line. In order to overcome a difficulty of production technique and to constitute a suitable net, the optical cable consists of a short circuit which must be connected for the maintenance of the optical path, in which the optical cable must be very precisely connected so as to minimize a loss. The multifiber optical connector for optical ribbon cable according to the present invention is comprised of arranging means comprising a ferrule to fix and arrange ends of both sides of multifiber optical cable for an exact connection, an arranging block for connecting section of both sides of the said ferrule to be coincided exactly and a leaf spring to act an elastic force upon the said ferrule; and connecting means comprising an adaptor, an optical cable protecting instrument and a plug in which the said arranging means are established and it connects them strongly, and which is capable of contributing to settle a period of an optical communication by early realization of a network of optical passivity in which a heart part of the optical connector, such as ferrule, arranging elements and connecting structure are embodied by using new materials and new structure and thus, commercial-viability, performance and assembling property are improved.

Multifiber optical connector for optical ribbon cable

A single core optical fiber connector is disclosed in which an optical signal transmitting line between optical fibers is maintained or short-circuited with a low power loss by utilizing a sectional contact of a single core optical fiber. An elastic deformation energy of a polymer material is utilized so as to achieve the sectional contact for minimizing the loss, and precisely machined alignment devices are utilized so as to reduce the misalignment between the optical fibers, thereby improving the assemblability and the economy. The optical fiber sections which are lightly ground on a grinding paper are contacted by using a precisely machined alignment device and by utilizing the elastic deformation energy of the elastic ferrule. This contact is maintained by a coupling between a specially designed plug and an adaptor, thereby forming a structure of an optical fiber connector and an alignment device. The ferrule, the alignment device and the coupling structure which are the critical factors for the optical fiber connector are provided in the form of a new material, a new technique and a new structure. Consequently, the economy, the performance and the assemblability are improved, thereby contributing to the early settlement of the fiber optics system.

Single core optical fiber connector

Growing community of inventors

Daejeon, South Korea

Myung-Yung Jeong