基本信息:
- 专利标题： Method and apparatus for transmitting and receiving coherent optical OFDM
- 专利标题（中）：用于发送和接收相干光OFDM的方法和装置
- 申请号：US13301814 申请日：2011-11-22
- 公开(公告)号：US09270381B2 公开(公告)日：2016-02-23
- 发明人： Chun Ju Youn , Yong-Hwan Kwon , Duk Jun Kim , Jong-Hoi Kim , Joong-Seon Choe , Kwang-Seong Choi , Eun Soo Nam
- 申请人： Chun Ju Youn , Yong-Hwan Kwon , Duk Jun Kim , Jong-Hoi Kim , Joong-Seon Choe , Kwang-Seong Choi , Eun Soo Nam
- 申请人地址： KR Daejeon
- 专利权人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
- 当前专利权人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
- 当前专利权人地址： KR Daejeon
- 代理机构： Rabin & Berdo, P.C.
- 优先权： KR10-2010-0129923 20101217
- 主分类号： H04B10/06
- IPC分类号： H04B10/06 ; H04B10/04 ; H04B10/548 ; H04B10/077 ; H04B10/588 ; H04B10/61 ; H04L27/20 ; H04L27/26
摘要：
Disclosed are a method and an apparatus for transmitting and receiving coherent optical OFDM. The apparatus includes: a transmitted OFDM digital signal processing unit outputting an in-phase (I) component digital signal and a quadrature phase (Q) component digital signal; a digital-analog converter converting the in-phase (I)-component digital signal and the quadrature-phase (Q)-component digital signal into an in-phase (I)-component analog signal and a quadrature-phase (Q)-component analog signal, respectively; an adder adding an additional pilot tone signal to each of the in-phase (I)-component analog signal and the quadrature-phase (Q)-component analog signal outputted from the digital-analog converter; and an optical I/Q modulator up-converting the in-phase (I)-component analog signal added with the additional pilot tone signal and the quadrature-phase (Q)-component analog signal added with the additional pilot tone signal to an optical domain to output a coherent optical OFDM signal including the additional pilot tone signal.
摘要（中）：
公开了用于发送和接收相干光OFDM的方法和装置。 该装置包括：发送的OFDM数字信号处理单元，输出同相（I）分量数字信号和正交相位（Q）分量数字信号; 将同相（I）分量数字信号和正交相位（Q））数字信号转换为同相（I）分量模拟信号和正交相位（Q）分量数字信号的数模转换器， 分量模拟信号; 对从数模转换器输出的同相（I）分量模拟信号和正交相（Q））模拟信号中的每一个加上附加导频音信号的加法器; 以及光学I / Q调制器，将添加有附加导频音信号的同相（I）分量模拟信号和加上附加导频音信号的正交相位（Q））模拟信号上变频到光 域以输出包括附加导频音信号的相干光OFDM信号。