发明授权
US07761012B2 Optical communication system and method for generating dark return-to zero and DWDM optical MM-Wave generation for ROF downstream link using optical phase modulator and optical interleaver
失效
用于使用光相位调制器和光交错器生成用于ROF下行链路的暗归零和DWDM光MM-Wave生成的光通信系统和方法
- 专利标题: Optical communication system and method for generating dark return-to zero and DWDM optical MM-Wave generation for ROF downstream link using optical phase modulator and optical interleaver
- 专利标题(中): 用于使用光相位调制器和光交错器生成用于ROF下行链路的暗归零和DWDM光MM-Wave生成的光通信系统和方法
-
申请号: US11621765申请日: 2007-01-10
-
公开(公告)号: US07761012B2公开(公告)日: 2010-07-20
- 发明人: Jianjun Yu , Lei Xu , Philip Nan Ji , Ting Wang
- 申请人: Jianjun Yu , Lei Xu , Philip Nan Ji , Ting Wang
- 申请人地址: US NJ Princeton
- 专利权人: NEC Laboratories America, Inc.
- 当前专利权人: NEC Laboratories America, Inc.
- 当前专利权人地址: US NJ Princeton
- 代理商 Joseph J. Kolodka
- 主分类号: H04B10/04
- IPC分类号: H04B10/04
摘要:
A method of generating a dark-RZ pulse in an optical communications system with a dual-arm modulator by setting a direct current bias on the modulator to a specific value such that an output optical power from the modulator achieves a maximum value when the RF signals on the first and second arms of the modulator are off and maintaining the direct current bias at the specific value and applying RF signals to the first and second arms of the modulator and delaying one of the RF signals applied to one of the first and second arms relative to the other of the RF signals such that a dark-RZ pulse is generated with a duty cycle based on the delay. Another aspect of the invention provides a method for generating dense wave division multiplexing (DWDM) optical mm-waves in an optical transmission system by phase modulated DWDM optical signal and applying the phase modulated DWDM optical signal to an input port of an optical interleaver, the optical interleaver having a specified bandwidth to suppress the optical carriers and convert the DWDM optical signal to DWDM optical mm-waves; and amplifying the DWDM optical mm-waves and transmitting the DWDM optical mm-waves over single mode fiber (SMF).
公开/授权文献
信息查询