发明名称 |
Polarization multiplexed light transmitter and control method thereof |
摘要 |
<p>The polarization multiplexed light transmitter takes out a part of a polarization multiplexed light to be transmitted as a monitor light; makes orthogonal polarization components contained in the monitor light to interfere with each other, to generate a polarization interfering light converts the polarization interfering light into an electric signal; measure the power of an alternate current component contained in the electric signal after eliminating a direct current component thereof; and feedback controls delay amount varying sections so that an inter-polarized channel delay time judged based on a change in the measured power reaches a predetermined value. Thus, the delay time between the orthogonal polarization components in the polarization multiplexed light can be varied flexibly at a high speed with a simple configuration, and thus, it becomes possible to suppress transmission characteristics degradation of the polarization multiplexed light due to a change in system state.</p> |
申请公布号 |
EP2164199(A2) |
申请公布日期 |
2010.03.17 |
申请号 |
EP20090169702 |
申请日期 |
2009.09.08 |
申请人 |
FUJITSU LIMITED |
发明人 |
TANAKA, TOSHIKI;AKIYAMA, YUICHI;YUKI, MASAHIRO;MIYATA, HIDEYUKI |
分类号 |
H04J14/06;H04B10/079;H04B10/2507;H04B10/50;H04B10/524;H04B10/532;H04B10/588;H04J14/00;H04J14/04 |
主分类号 |
H04J14/06 |
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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