发明名称 |
Optical modulator |
摘要 |
An object of the present invention is to improve the modulation efficiency of an optical modulator in a high frequency band while satisfying the velocity matching condition. An optical modulator (1A) is provided having an optical waveguide (3) for propagating light, an electrode (2B) for applying a voltage on the waveguide for modulating the light, a signal source electrically connected to the electrode and a terminating resistance electrically connected to the electrode. The signal source has a characteristic impedance Zi and the terminating resistance has an impedance Zl satisfying the formula (Z i < Z 1). Alternatively, the signal source has a characteristic impedance Zi and the electrode has a characteristic impedance Zc satisfying the formula (Z i < Z c).
|
申请公布号 |
EP1418461(A2) |
申请公布日期 |
2004.05.12 |
申请号 |
EP20030256841 |
申请日期 |
2003.10.29 |
申请人 |
NGK INSULATORS, LTD. |
发明人 |
MITOMI, O.;AOKI,KENJI;KONDO,J.;KONDO, A. |
分类号 |
G02F1/01;G02F1/035;(IPC1-7):G02F1/035 |
主分类号 |
G02F1/01 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|