发明名称 |
Apparatus and method for optimizing bias voltage of electro-optic modulator and optical transmitting system using the same |
摘要 |
Provided are an apparatus for optimizing bias voltage of an electro-optic modulator, a method therefor, and an optical transmission system using the method. The present research provides a bias voltage optimizing apparatus of an electro-optic modulator that can stabilize bias voltage supplied to the electro-optic modulator through automatic bias voltage initialization control by considering the point that the form of an optical output signal and the intensity of a clock component are changed according to the bias voltage of the electro-optic modulator, a method therefor and an optical transmission system using the method. The apparatus includes: a clock extracting unit for extracting a clock frequency component from the frequency components in a wideband spectrum of the electro-optic modulator; a control unit for finding a point of the lowest electric intensity by detecting an electric intensity of the extracted frequency component and controlling the bias voltage adaptively by changing the bias voltage; and a bias voltage adjusting unit for controlling the bias voltage of the electro-optic modulator under the control of the bias voltage controlling unit.
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申请公布号 |
US2005129411(A1) |
申请公布日期 |
2005.06.16 |
申请号 |
US20040876436 |
申请日期 |
2004.06.24 |
申请人 |
CHO HYUNWOO;LEE SANG-SOO;LIM SANG-KYU;LEE JYUNG-CHAN;MYONG SEUNG-IL;KO JE-SOO |
发明人 |
CHO HYUNWOO;LEE SANG-SOO;LIM SANG-KYU;LEE JYUNG-CHAN;MYONG SEUNG-IL;KO JE-SOO |
分类号 |
H04B10/04;G02F1/01;H04B10/155;(IPC1-7):G02F1/01;G02F1/035;H04B10/00 |
主分类号 |
H04B10/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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