DWDM-PON at 25 GHz channel spacing based on ASE injection seeding

• DOI: 10.1364/oe.20.000b45
• Publication Date: 2012-11-28T22:08:31Z
• Authors: Joon-Young Kim; Sang-Rok Moon; Sang-Hwa Yoo; Chang-Hee Lee
• Keywords: 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology

We demonstrate a 25 GHz-channel-spaced DWDM-PON based on ASE injection seeding. A 60 km transmission at 1.25 Gb/s per channel is available with a 2nd generation FEC. The major limiting factor is the optical back reflection induced penalty. Thus a high gain reflective modulator and/or relocation of the seed light increase the transmission length. We demonstrated 90 km transmission with relocated seed light to remote node.