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1. 发明授权

US06498886B1 Adaptive feedback control method for polarization mode dispersion or chromatic dispersion compensation 失效
标题翻译：用于偏振模色散或色散补偿的自适应反馈控制方法
公开(公告)号：US06498886B1
公开(公告)日：2002-12-24
申请号：US09784329
申请日：2001-02-16
申请人： Donald J. Sobiski , Matthew S. Whiting
发明人： Donald J. Sobiski , Matthew S. Whiting
IPC分类号： G02B600
CPC分类号： H04B10/25133 , H04B10/2569
摘要： A method for controlling a dispersion compensation in optical communications is disclosed. The illustrative method includes receiving a first measurement of dispersion at a first step; receiving a second measurement of dispersion at a second step; calculating a gradient of dispersion between the first measurement of dispersion and the second measurement of dispersion; and sending a command to a dispersion compensator based on the value of the gradient.
摘要翻译：公开了一种用于控制光通信中的色散补偿的方法。所述说明性方法包括在第一步骤接收第一测量分散度; 在第二步骤接收第二次色散测量; 计算第一次色散测量和第二次色散测量之间的色散梯度; 并根据梯度的值向色散补偿器发送命令。

2. 发明授权

US06487352B1 Electrical detector for adaptive control of chromatic dispersion in optical systems 失效
标题翻译：用于光学系统色散自适应控制的电子探测器
公开(公告)号：US06487352B1
公开(公告)日：2002-11-26
申请号：US09784309
申请日：2001-02-16
申请人： Donald J. Sobiski , L. Christopher Henning
发明人： Donald J. Sobiski , L. Christopher Henning
IPC分类号： G02B600
CPC分类号： H04B10/25133 , H04B10/2569
摘要： An optical device for detecting chromatic dispersion is described. The optical device includes a receiver, which converts an optical signal into an electrical signal having a plurality of frequency components. A bandpass section separates the plurality of frequency components and a gain section amplifies each of the plurality of frequency components of the electrical signal. Each of the spectral components has a corresponding voltage level and each voltage level may be compared to known voltage levels of a signal having little or no chromatic dispersion. From this comparison, the amount of chromatic dispersion may be determined. The optical device may be used as an element of a chromatic dispersion compensation device, or as a stand-alone device for measuring the amount of chromatic dispersion in an optical signal. A method of compensating for chromatic dispersion in real-time based on the optical device and dispersion compensator is also described.
摘要翻译：描述了用于检测色散的光学装置。光学装置包括将光信号转换为具有多个频率分量的电信号的接收器。带通部分分离多个频率分量，并且增益部分放大电信号的多个频率分量中的每一个。每个频谱分量具有对应的电压电平，并且每个电压电平可以与具有很小或没有色散的信号的已知电压电平进行比较。从该比较可以确定色散量。光学装置可以用作色散补偿装置的元件，或者用作用于测量光信号中的色散量的独立装置。还描述了基于光学装置和色散补偿器实时补偿色散的方法。

3. 发明授权

US06556732B1 All fiber polarization mode dispersion compensator 失效
标题翻译：全光纤偏振模色散补偿器
公开(公告)号：US06556732B1
公开(公告)日：2003-04-29
申请号：US09589423
申请日：2000-06-07
申请人： Dipakbin Q. Chowdhury , Edward F. Murphy , Razvigor B. Ossikovski , Donald J. Sobiski
发明人： Dipakbin Q. Chowdhury , Edward F. Murphy , Razvigor B. Ossikovski , Donald J. Sobiski
IPC分类号： G02B600
CPC分类号： H04B10/25133 , H04B10/2569
摘要： A polarization mode dispersion compensator corrects polarization mode dispersion in an optical signal having a fast polarization mode component, a slow polarization mode component and a time differential between the components. The compensator includes a phase shifter and a variable delay section. An input of the phase shifter is coupled to an optical device that provides an optical signal that exhibits polarization mode dispersion. The phase shifter functions to rotate the optical signal principal states of polarization to a desired orientation. The variable delay section includes an input, an output and at least one optical fiber delay line. The input of the variable delay section is coupled to the output of the phase shifter and the desired orientation of the optical signal principal states of polarization are substantially rotated to be in alignment with one of a fast axis and a slow axis of each of the one or more fiber delay lines. In this manner, the variable delay section functions to delay the principal states of polarization of the optical signal with respect to one another as a function of whether the principal states of polarization traverse said one of a fast axis and a slow axis of the at least one optical fiber delay line, thus reducing the time differential between the components.
摘要翻译：偏振模色散补偿器校正具有快速偏振模式分量，慢偏振模分量和分量之间的时间差的光信号中的偏振模色散。补偿器包括移相器和可变延迟部分。移相器的输入耦合到提供呈现偏振模色散的光信号的光学装置。移相器用于将光学信号的主要偏振状态旋转到期望的取向。可变延迟部分包括输入，输出和至少一个光纤延迟线。可变延迟部分的输入耦合到移相器的输出，并且光信号的主要偏振状态的期望取向基本上旋转以与一个的每个的快轴和慢轴中的一个对准或更多的光纤延迟线。以这种方式，可变延迟部分用于延迟光信号的相对于彼此的偏振的主要状态，作为偏振的主要状态是否穿过至少至少的快轴和慢轴的所述一个一个光纤延迟线，从而减少组件之间的时差。

4. 发明授权

US06661937B2 Fiber squeezing device 失效
标题翻译：纤维挤压装置
公开(公告)号：US06661937B2
公开(公告)日：2003-12-09
申请号：US09945163
申请日：2001-08-31
申请人： Donald J. Sobiski , Eric T. Green
发明人： Donald J. Sobiski , Eric T. Green
IPC分类号： G02B600
CPC分类号： G02B6/278 , G02B6/105 , G02B6/274 , G02B6/2766 , G02B6/2786 , G02B6/3616 , G02B6/3636 , G02F1/0134 , G02F1/0136 , H04B10/25133 , H04B10/2569
摘要： According to an exemplary embodiment of the present invention, an apparatus for selectively introducing birefringence in an optical fiber includes an actuator which selectively exerts a force on the fiber, and a registration key which selectively orients an axis of the optical fiber at predetermined azimuths. According to another illustrative embodiment of the present invention, an apparatus for changing the polarization state of an optical signal includes a plurality of sequentially connected phase shifters, wherein each of the phase shifters is adapted to exert a force on an optical fiber disposed therein. Each of the plurality of phase shifters includes a registration key which selectively orients an axis of the optical fiber disposed in the registration key at a predetermined azimuth.
摘要翻译：根据本发明的示例性实施例，用于在光纤中选择性地引入双折射的装置包括：选择性地对光纤施加力的致动器，以及选择性地将光纤轴定向在预定方位角的对准键。对于本发明的另一示例性实施例，用于改变光信号的偏振状态的装置包括多个顺序连接的移相器，其中每个移相器适于对设置在其中的光纤施加力。多个移相器中的每一个都包括一个对准键，其选择性地将布置在登记键中的光纤的轴定位在预定的方位角。

5. 发明授权

US6104703A Communication systems and methods employing receivers with estimators 失效
标题翻译：采用具有估计器的接收机的通信系统和方法
公开(公告)号：US6104703A
公开(公告)日：2000-08-15
申请号：US770115
申请日：1996-12-20
申请人： Donald J. Sobiski , James S. Thorp
发明人： Donald J. Sobiski , James S. Thorp
IPC分类号： H04L27/00 , H04L9/12
CPC分类号： H04L27/001
摘要： Communications systems and methods employ receivers which utilize estimators, such as extended Kalman filters, to estimate a transmitted information signal based only upon initial parameters in a transmitter and a single transmitted state of the transmitter. This arrangement facilitates the use of inherently secure chaotic modulation schemes in the transmitter. In one embodiment, one or more parameters of nonlinear transmitter elements are modulated with one or more information signals to generate a chaotically varying transmission signal. A communication scheme known as Parameter Division Multiple Access (PDMA) is thus created in which multiple information signals from multiple transmitters can be combined and transmitted to corresponding multiple receivers in a single transmission signal. A special Kalman filter known as a feedback Kalman filter is employed for separating each receiver's corresponding portion of the transmitted signal.
摘要翻译：通信系统和方法使用利用估计器（例如扩展卡尔曼滤波器）的接收机来仅基于发射机中的初始参数和发射机的单个传输状态来估计传输的信息信号。这种布置有助于在发射机中使用固有的安全混沌调制方案。在一个实施例中，用一个或多个信息信号调制非线性发射机元件的一个或多个参数，以产生混沌变化的传输信号。因此，创建了称为参数分多址（PDMA）的通信方式，其中来自多个发射机的多个信息信号可以组合并在单个传输信号中发送到对应的多个接收机。被称为反馈卡尔曼滤波器的特殊卡尔曼滤波器用于分离发射信号的每个接收机的相应部分。

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