Title :
Coherent technology for access networks
Author :
Cho, K.Y. ; Jung, S.P. ; Takushima, Y. ; Chung, Y.C.
Author_Institution :
Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Abstract :
We review the recent progresses in the coherent detection techniques developed for the use in the optical access network. To enhance the cost-effectiveness, we implement the coherent receiver by utilizing a portion of the seed light as a local oscillator and a 3×3 coupler as a 120° optical hybrid. In addition, instead of using the complicated polarization-diversity receiver, we achieve the polarization stability simply by placing a Faraday rotator in front of the reflective semiconductor optical amplifier (RSOA) located at the optical network unit (ONU).
Keywords :
Faraday effect; optical fibre networks; optical receivers; semiconductor optical amplifiers; Faraday rotator; coherent receiver; coherent technology; optical access network; optical network unit; polarization stability; reflective semiconductor optical amplifier; Optical amplifiers; Optical network units; Optical polarization; Optical reflection; Passive optical networks; Receivers; Wavelength division multiplexing;
Conference_Titel :
OptoElectronics and Communications Conference (OECC), 2010 15th
Conference_Location :
Sapporo
Print_ISBN :
978-1-4244-6785-3
