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1. 发明授权

US07769300B1 Reducing the distortion of optical pulses caused by polarization mode dispersion in optical communication systems 失效
标题翻译：减少光通信系统偏振模色散引起的光脉冲失真
公开(公告)号：US07769300B1
公开(公告)日：2010-08-03
申请号：US09890597
申请日：2000-01-17
申请人： Wolfgang Dultz , Leonid Beresnev , Erna Frins , Franko Kueppers , Heidrun Schmitzer , Joachim Vobian , Werner Weiershausen
发明人： Wolfgang Dultz , Leonid Beresnev , Erna Frins , Franko Kueppers , Heidrun Schmitzer , Joachim Vobian , Werner Weiershausen
IPC分类号： H04B10/00
CPC分类号： H04B10/2572
摘要： A method and device for reducing the distortion of optical pulses caused by the polarization mode dispersion in optical communication systems is provided. When an optical pulse having any polarization is transmitted through an optical communication system, which is optically anisotropic, at least in sections, the optical pulse may become distorted due to the different velocities of the various polarization components. This distortion of the optical pulses may reduces the maximum transmission rate of the system. A method is provided for functioning in response to the detected transmission quality of the communication system where a polarization-controlling device for setting the polarization of the optical pulse is driven in such a way that the transmission quality is maximized. An optical communication system, including an optical transmission medium, involves a device for determining the transmission quality of the communication system, a regulating device, and a polarization-controlling device. The output signal from the device for determining the transmission quality of the communication system may be applied to the regulating device, which drives the polarization-controlling device to change the polarization of the optical pulses in such a way that the transmission quality is optimized.
摘要翻译：提供了一种用于减少由光通信系统中的偏振模色散引起的光脉冲失真的方法和装置。当具有任何极化的光脉冲至少部分通过光学各向异性的光通信系统传输时，由于各种偏振分量的不同速度，光脉冲可能会变形。光脉冲的这种失真可能会降低系统的最大传输速率。提供了一种响应于检测到的通信系统的传输质量起作用的方法，其中用于设置光脉冲的极化的偏振控制装置以传输质量最大化的方式被驱动。包括光传输介质的光通信系统涉及用于确定通信系统的传输质量的装置，调节装置和偏振控制装置。来自用于确定通信系统的传输质量的设备的输出信号可以被施加到调节装置，该调节装置驱动偏振控制装置以改变传输质量被优化的方式改变光脉冲的偏振。

2. 发明申请

US20090016738A1 COMPACT ALL-OPTICAL CLOCK RECOVERY DEVICE 审中-公开
标题翻译：紧凑的全光时钟恢复装置
公开(公告)号：US20090016738A1
公开(公告)日：2009-01-15
申请号：US12280663
申请日：2006-02-24
申请人： Tuomo Von Lerber , Seppo Honkanen , Franko Kueppers
发明人： Tuomo Von Lerber , Seppo Honkanen , Franko Kueppers
IPC分类号： H04B10/02
CPC分类号： H04L7/0075
摘要： A clock recovery device adapted to recover at least one clock signal from an optical input signal. The input signal includes at least one data signal. The clock recovery device-includes a first waveguide, a first optical resonator coupled to the first waveguide, a second optical resonator coupled to the first waveguide, and a combiner to combine signals provided by the first optical resonator and the second optical resonator in order to provide an output signal. A passband of the first optical resonator is matched with a first spectral peak of the input signal, and a passband of the second optical resonator is matched with a second spectral peak of the input signal such that the spectral separation between the first and the second peaks is equal to a clock frequency associated with a first data signal. The optical resonators store optical energy and provide an output also when the data signal is zero. Thus, the output signal includes a first recovered clock signal which exhibits continuous beat at the first clock frequency. The optical resonators are coupled to the same waveguide by evanescent coupling. A high coupling efficiency may be achieved and the use of further optical splitters may be avoided.
摘要翻译：一种适于从光输入信号中恢复至少一个时钟信号的时钟恢复装置。输入信号包括至少一个数据信号。时钟恢复装置 - 包括耦合到第一波导的第一波导，耦合到第一波导的第一光谐振器，耦合到第一波导的第二光谐振器，以及组合器，用于组合由第一光谐振器和第二光谐振器提供的信号，以便提供输出信号。第一光谐振器的通带与输入信号的第一光谱峰匹配，并且第二光谐振器的通带与输入信号的第二光谱峰匹配，使得第一和第二峰之间的光谱间隔等于与第一数据信号相关联的时钟频率。光谐振器存储光能并且当数据信号为零时也提供输出。因此，输出信号包括以第一时钟频率呈现连续拍频的第一恢复时钟信号。光谐振器通过渐逝耦合耦合到相同的波导。可以实现高耦合效率，并且可以避免使用另外的光分路器。

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