Kim Joon-Young, Moon Sang-Rok, Yoo Sang-Hwa, Lee Chang-Hee
Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, South Korea.
Opt Express. 2012 Dec 10;20(26):B45-51. doi: 10.1364/OE.20.000B45.
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.
我们展示了一种基于ASE注入种子的25GHz信道间隔的DWDM-PON。采用第二代前向纠错（FEC）时，每通道1.25Gb/s的速率下可实现60km的传输。主要限制因素是光背向反射引起的损耗。因此，高增益反射调制器和/或种子光的重新定位可增加传输距离。我们通过将种子光重新定位到远程节点，展示了90km的传输。
