公开(公告)号：US20130209094A1

公开(公告)日：2013-08-15

申请号：US13739027

申请日：2013-01-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jong Sool JEONG ,  Hyun Soo KIM ,  Byungseok CHOI ,  Mi-Ran PARK ,  O-Kyun KWON

IPC: H04J14/02

CPC classification number: H04J14/0221 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0258 ,  H04J14/0265 ,  H04J14/0276 ,  H04J14/0282

Abstract: The present disclosure relates to an optical line terminal, the disclosure includes: an optical transmitter for generating a low speed downstream optical signal; a wavelength-multiplexer for wavelength-multiplexing the downstream optical signal; a first optical power branching tap coupler for allowing wavelength-multiplexed downstream optical signal to branch off; a wavelength band separator/coupler for separating between the wavelength-multiplexed downstream optical signal and a wavelength-multiplexed upstream optical signal; a circulation type wavelength-demultiplexer for wavelength-demultiplexing a downstream optical signal branched off by the first optical power branching tap coupler and an upstream optical signal separated by the wavelength band separator/coupler; an optical receiver for outputting a downstream electrical signal by using the wavelength-demultiplexed optical signal; and a signal processing module for controlling an optical power and a wavelength of the optical transmitter according to a strength of the downstream electrical signal.

Abstract translation: 本发明涉及一种光线路终端，其公开内容包括：用于产生低速下行光信号的光发射机; 用于波长多路复用下行光信号的波长多路复用器; 用于允许波长多路复用的下行光信号分支的第一光功率分支抽头耦合器; 用于在波长多路复用的下行光信号和波长多路复用的上行光信号之间分离的波长带分离器/耦合器; 用于对由第一光功率分支耦合器分支的下行光信号进行波长解复用的循环型波长解复用器和由波段分离器/耦合器分离的上游光信号; 光接收器，用于通过使用波长解复用的光信号输出下游电信号; 以及信号处理模块，用于根据下游电信号的强度来控制光发射机的光功率和波长。