Invention Grant
- Patent Title: Optical amplitude modulation system capable of cancelling high order component
- Patent Title (中): 能够抵消高阶分量的光调制系统
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Application No.: US12065278Application Date: 2006-08-30
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Publication No.: US07711215B2Publication Date: 2010-05-04
- Inventor: Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
- Applicant: Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
- Applicant Address: JP Tokyo
- Assignee: National Institute of Information and Communications Technology
- Current Assignee: National Institute of Information and Communications Technology
- Current Assignee Address: JP Tokyo
- Agency: Myers Wolin, LLC
- Priority: JP2005-251832 20050831
- International Application: PCT/JP2006/317098 WO 20060830
- International Announcement: WO2007/026759 WO 20070308
- Main IPC: G02F1/035
- IPC: G02F1/035
Abstract:
It is an object of the present invention to provide a DSB-SC system capable of suppressing a third order component. The DSB-SC modulation having high extinction ratio can be realized by adjusting the first order component, which is generated by applying a modulation signal (3fm), and the third order component, which is generated by applying a basic signal (fm), to have reversed phase and the same intensity level, and then by applying the first order component to the third order component, these two components cancel each other.
Public/Granted literature
- US20090238510A1 OPTICAL AMPLITUDE MODULATION SYSTEM CAPABLE OF CANCELLING HIGH ORDER COMPONENT Public/Granted day:2009-09-24
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