基本信息:
- 专利标题： OPTICAL TRANSMISSION SYSTEM AND OPTICAL TRANSMISSION CONTROL METHOD
- 专利标题（中）：光传输系统和光传输控制方法
- 申请号：US12442559 申请日：2007-10-04
- 公开(公告)号：US20100021169A1 公开(公告)日：2010-01-28
- 发明人： Hitoshi Takeshita , Toshiharu Ito
- 申请人： Hitoshi Takeshita , Toshiharu Ito
- 优先权： JP2006-277053 20061011
- 国际申请： PCT/JP2007/069471 WO 20071004
- 主分类号： H04J14/02
- IPC分类号： H04J14/02
摘要：
The present invention is intended to provide an optical transmission system which is applicable not only to a known signal but also to an unknown signal, and has a high reliability at a low cost. A branching device branches an optical transmission output of a transmitter, and transmits the branched signals through different optical transmission channels. A polarization mode dispersion monitor monitors the degree of polarization mode dispersion from the optical transmission channels at the receiving end. A switch control circuit and a switch select a signal which is less affected by a deterioration in quality due to polarization mode dispersion, and outputs the selected signal to receiver 8. In this way, the probability of a deterioration in the quality of a signal due to polarization mode dispersion can be reduced for a transmission signal.
摘要（中）：
本发明旨在提供一种光传输系统，其不仅可应用于已知信号，而且可应用于未知信号，并且以低成本具有高可靠性。 分支装置分支发射机的光传输输出，并通过不同的光传输信道发送分支的信号。 偏振模色散监视器监视来自接收端的光传输通道的偏振模色散程度。 开关控制电路和开关选择由于偏振模式色散而受质量劣化影响较小的信号，并将选择的信号输出到接收器8.以这种方式，信号质量劣化的概率 可以减少发射信号的偏振模色散。