公开(公告)号：US20130209105A1

公开(公告)日：2013-08-15

申请号：US13674262

申请日：2012-11-12

Applicant: Electronics and Telecommunications Research In

Inventor： Jong Sool Jeong ,  Hyun Soo Kim ,  Mi-Ran Park ,  Byunseok Choi ,  O-Kyun Kwon

IPC: H04J14/02

CPC classification number: H04J14/0282 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0265

Abstract: Disclosed is a wavelength-shifted bidirectional WDM optical network including: an optical line terminal including an optical line terminal (OLT) including a first optical transmitter transmitting a downstream WDM optical signal, a first high-density wavelength multiplexer/demultiplexer wavelength-multiplexing the downstream WDM optical signal or wavelength-demultiplexing a wavelength-multiplexed upstream WDM optical signal, and a first optical receiver receiving the wavelength-demultiplexed upstream WDM optical signal; a remote node (RN) including a second high-density wavelength multiplexer/demultiplexer shifting a center wavelength of the upstream WDM optical signal and wavelength-multiplexing the upstream WDM optical signal with the shifted center wavelength or wavelength-demultiplexing the wavelength-multiplexed downstream WDM optical signal; and multiple optical network units (ONUs) each including a second optical transmitter transmitting the upstream WDM optical signal and second optical receiver receiving the wavelength-demultiplexed downstream WDM optical signal.

Abstract translation: 公开了一种波长偏移的双向WDM光网络，包括：光线路终端，包括包括发送下行WDM光信号的第一光发射机的光线路终端（OLT），第一高密度波长多路复用器/解复用器，波分复用下行 WDM光信号或波长多路分解波分复用上行WDM光信号，以及第一光接收器，接收波长解复用的上行WDM光信号; 远程节点（RN），包括第二高密度波长多路复用器/解复用器，用于移位上行WDM光信号的中心波长，并以移位的中心波长波长多路复用上行WDM光信号，或波长多路复用波分复用下游WDM 光信号; 以及多个光网络单元（ONU），每个光网络单元（ONU）包括发送上行WDM光信号的第二光发射机和接收波长解复用的下行WDM光信号的第二光接收机。