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1. 发明申请

US20100202783A1 PHASE NOISE SUPPRESSION IN AN OPTICAL SYSTEM 审中-公开
标题翻译：光学系统中的相位噪声抑制
公开(公告)号：US20100202783A1
公开(公告)日：2010-08-12
申请号：US12690336
申请日：2010-01-20
申请人： Tuomo von Lerber , Marco Mattila , Ari Tervonen , Werner Weiershausen
发明人： Tuomo von Lerber , Marco Mattila , Ari Tervonen , Werner Weiershausen
IPC分类号： H04B10/00
CPC分类号： H04B10/677
摘要： An optical signal regeneration technique includes receiving optical symbols in a phase-modulation format. The received symbols are converted to symbols in a phase/amplitude-modulation format. A first amplitude regeneration, which involves reduction of amplitude noise, is applied to a first symbol pair. A modulation format conversion is performed on the optical signal in the phase/amplitude modulation format after the first amplitude regeneration. A second amplitude regeneration is applied to a second symbol pair, wherein the first and second symbol pairs differ from one another in respect of at least one different feature, which is selected from a group that includes a different nominal phase value assigned to the symbols of the symbol pair and a different temporal distance between the symbols of a symbol pair.
摘要翻译：光信号再生技术包括以相位调制格式接收光学符号。接收的符号以相位/幅度调制格式转换为符号。对第一符号对施加第一振幅再生，其涉及减小振幅噪声。在第一幅度再生之后，以相位/幅度调制格式对光信号执行调制格式转换。第二幅度再生应用于第二符号对，其中第一和第二符号对于至少一个不同特征彼此不同，所述至少一个不同特征从包括分配给符号的符号的不同标称相位值的组中选择符号对和符号对的符号之间的不同时间距离。

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