Electronics and Telecommunications Research Institute

Jea-hoon Yu

Jai-sang Koh

Seung-Hyun Cho

Han-Hyub Lee

Jie-Hyun Lee

Mahn Yong Park

Byoung-whi Kim

Byoungi-whi Kim

A spectrum-sliced seed light module for a wavelength division multiplexing passive optical network (WDM PON) is provided. The seed light module includes an optical amplifier to amplify seed light, an optical wavelength filter to transmit broadband light, which is output in opposite direction to an output direction of the seed light, at periodic frequency intervals, and a reflective mirror to reflect light which is spectrum-sliced through the optical wavelength filter to the optical wavelength filter.

Seed light module for passive optical network

A method and apparatus for controlling a reflective semiconductor optical amplifier (RSOA) are provided. The RSOA control apparatus sets a threshold current at which a light source starts to oscillate to be constant regardless of a wavelength of seed light by controlling a driving temperature for driving a RSOA, and adjusts an optical characteristic which is differently output for each wavelength of seed light to be constant by controlling a driving current.

Method and apparatus for controlling reflective semiconductor optical amplifier (RSOA)

Growing community of inventors

Daejeon-si, South Korea

Jea-hoon Yu