Sk Telecom Company, Ltd.

Hfr, Inc.

Lightron Inc.

Jinsoo Sung

Sang-woo Kim

Chan Gook Park

Jongyeong Lim

Eun-Ho Lee

Jong-Yeong Lim

Kangyong Jung

Jaehyun Jin

Wolyon Hwang

Youngjoon Yoo

Sangsu Park

Youngun Heo

Beum-Geun Cho

Sun-Ik Lee

Jinsoo Choi

Hongman Kim

Myung-Hun Song

Yoonkoo Kwon

Sungjin Byun

A bi-directional optical transceiver module includes: an optical transmission unit to output a transmission signal; an optical reception unit to receive a reception signal, the transmission signal and the reception signal having different corresponding first and second wavelength values within a single channel; a splitter, inclined with respect to an incident direction of the transmission signal output from the optical transmission unit, to transmit the transmission signal to an outside, and reflect optical signals input from the outside, the optical signals including the reception signal; and a reflected light-blocking optical filter unit to pass, as the reception signal among the optical signals reflected by the splitter, an optical signal within a preset wavelength range including the second wavelength value.

Bi-directional optical transceiver module

A system for sharing an optical fiber for a cloud-based wired and wireless access network, includes: a centralization device to generate summing signals by respectively summing multi-channel optical signals input from a wireless donor unit group and by summing multi-channel wired signals input from a wired donor unit group or generate wavelength-converted signals by wavelength-converting the multi-channel optical signals or the multi-channel wired signals, multiplex the summing signals or the wavelength-converted signals, and distribute the summing signals or the wavelength-converted signals to a plurality of devices connected to the centralization device via a shared optical fiber; and a distribution device group to generate corresponding optical signals by demultiplexing the summing signals or the wavelength-converted signals in units of wavelengths, and transmit the corresponding optical signals or the multi-channel wired signals to a wireless remote unit group and/or a wired remote unit group via a preset optical fiber.

Method for sharing optical fiber for cloud-based wired and wireless access network, and system and apparatus for same

Growing community of inventors

Seongnam-si, South Korea

Jinsoo Sung