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21. 发明授权

US06914681B2 Interferometric optical component analyzer based on orthogonal filters 失效
标题翻译：基于正交滤波器的干涉光学元件分析仪
公开(公告)号：US06914681B2
公开(公告)日：2005-07-05
申请号：US09938100
申请日：2001-08-22
申请人： Bogdan Szafraniec , Gregory D. Vanwiggeren , Ali Motamedi
发明人： Bogdan Szafraniec , Gregory D. Vanwiggeren , Ali Motamedi
IPC分类号： G01J9/04 , G01B9/02 , G01M11/00 , G01M11/02
CPC分类号： G01M11/3172 , G01B2290/60
摘要： A system and method for measuring optical characteristics of an optical device under test (DUT) is provided. The system includes a light source for generating an optical signal applied to the optical DUT. A reference interferometer and a test interferometer are optically coupled to the light source. A computing unit is coupled to the interferometers, and utilizes amplitude and phase computing components, such as orthogonal filters, in determining optical characteristics of the optical DUT.
摘要翻译：提供了一种用于测量被测光学器件（DUT）的光学特性的系统和方法。该系统包括用于产生施加到光学DUT的光信号的光源。参考干涉仪和测试干涉仪光耦合到光源。计算单元耦合到干涉仪，并且在确定光学DUT的光学特性时利用幅度和相位计算组件，例如正交滤波器。

22. 发明授权

US06900896B2 Method and system for measuring optical characteristics of a sub-component within a composite optical system 失效
标题翻译：用于测量复合光学系统内的子部件的光学特性的方法和系统
公开(公告)号：US06900896B2
公开(公告)日：2005-05-31
申请号：US10098702
申请日：2002-03-15
申请人： Ali Motamedi , Bogdan Szafraniec , Gregory D. VanWiggeren
发明人： Ali Motamedi , Bogdan Szafraniec , Gregory D. VanWiggeren
IPC分类号： G01J9/04 , G01B9/02 , G01M11/00 , G01M11/02 , G01B11/02 , G01N21/00
CPC分类号： G01M11/3172 , G01B2290/60
摘要： A method and system for measuring optical characteristics of a sub-component within a composite optical system is disclosed. In one embodiment, the present invention generates an optical response from a composite optical system. The present embodiment then separates an optical response of a sub-component from the optical response of the composite optical system. The present embodiment then determines the optical characteristics of the sub-component by utilizing at least one portion of the optical response of the sub-component.
摘要翻译：公开了一种用于测量复合光学系统内的子部件的光学特性的方法和系统。在一个实施例中，本发明从复合光学系统产生光学响应。然后，本实施例将子部件的光学响应与复合光学系统的光学响应分离。然后，本实施例通过利用子部件的光学响应的至少一部分来确定子部件的光学特性。

23. 发明授权

US06862377B2 System and method for PMD measurement from coherent spectral analysis 失效
标题翻译：相干光谱分析的PMD测量系统和方法
公开(公告)号：US06862377B2
公开(公告)日：2005-03-01
申请号：US10271132
申请日：2002-10-15
申请人： Bogdan Szafraniec , Douglas M. Baney
发明人： Bogdan Szafraniec , Douglas M. Baney
IPC分类号： G01J4/04 , G01M11/00 , G01M11/02 , G02B6/34 , H04B10/02 , H04B10/08 , H04B10/18 , G02B6/00
CPC分类号： G01M11/333 , G01M11/336 , G02B6/272 , G02B6/278 , H04B10/07 , H04B10/2569
摘要： Methods and systems allow an in situ determination of the magnitude of PMD in an optical network and provide an estimate of the PMD impairment in the transmitted signal even when PMD is time dependent.
摘要翻译：方法和系统允许原位确定光网络中的PMD的大小，并且即使当PMD是时间依赖的时候也提供传输信号中的PMD损伤的估计。

24. 发明授权

US06515276B2 Heterodyne optical spectrum analyzer with provisions for intensity noise subtraction 失效
公开(公告)号：US06515276B2
公开(公告)日：2003-02-04
申请号：US09811220
申请日：2001-03-17
申请人： Douglas M. Baney , Bogdan Szafraniec
发明人： Douglas M. Baney , Bogdan Szafraniec
IPC分类号： H04B1018
CPC分类号： H04B10/07 , H04B10/60 , H04B10/64
摘要： A coherent optical spectrum analyzer is provided in which an optical balancing tone having a specific signature is injected into a signal path of a balanced optical receiver. A measuring unit is provided to analyze the balancing tone component in the signal output from the balanced optical receiver and determine characteristics of the optical receiver. A compensation unit is provided for providing compensation to counter, or negate any imbalances determined via the measuring unit. The balanced optical receiver is preferably a polarization state independent optical receiver.

25. 发明申请

US20100322639A1 DEMODULATION OF AN OPTICAL SIGNAL UNDER CONTROL OF A KALMAN FILTER 有权
标题翻译：在卡尔曼滤波器控制下的光信号的解调
公开(公告)号：US20100322639A1
公开(公告)日：2010-12-23
申请号：US12489117
申请日：2009-06-22
申请人： Bogdan Szafraniec , Todd Steven Marshall
发明人： Bogdan Szafraniec , Todd Steven Marshall
IPC分类号： H04B10/06
CPC分类号： H04B10/64 , H04B10/60 , H04L27/223
摘要： An optical receiver and a method of demodulating an optical signal. The method includes combining a received optical signal with a local oscillator signal to construct a complex signal indicative of an optical field of the modulated optical signal and processing the complex signal recursively under control of a Kalman filter that enforces a constraint. The receiver includes an optical hybrid that combines a received optical signal with a local oscillator signal, a detector that recovers components of a complex signal, a processor that receives these components, and instructions that cause the processor to process the components of the complex signal recursively under control of a Kalman filter that enforces a constraint to recover data.
摘要翻译：光接收机和解调光信号的方法。该方法包括将接收到的光信号与本地振荡器信号组合以构成表示调制光信号的光场的复信号，并且在强制约束的卡尔曼滤波器的控制下递归地处理复信号。接收机包括组合接收的光信号与本地振荡器信号的光混合器，恢复复信号分量的检波器，接收这些组件的处理器以及使处理器递归地处理复信号分量的指令在卡尔曼滤波器的控制下，强制执行约束以恢复数据。

26. 发明申请

US20090297142A1 MODULATION BASED OPTICAL SPECTRUM ANALYZER 有权
标题翻译：基于调制的光谱分析仪
公开(公告)号：US20090297142A1
公开(公告)日：2009-12-03
申请号：US12127507
申请日：2008-05-27
申请人： Bogdan Szafraniec , Douglas M. Baney
发明人： Bogdan Szafraniec , Douglas M. Baney
IPC分类号： H04B17/00
CPC分类号： G01J3/433 , G01J3/02 , G01J3/0218 , G01J2003/1265
摘要： An optical spectrum analyzer and a method of spectrally analyzing an optical signal. The optical spectrum analyzer includes a wave shaper such as an optical modulator that shapes an optical signal, a dispersive element such as a dispersive fiber in which the shaped optical signal is dispersed, a detector that provides an output signal indicative of the dispersed shaped optical signal, and a signal processor that analyzes the output signal, for example by calculating a transform such as an inverse Fourier transform or a Fourier transform of the output signal, to provide a frequency spectrum of the optical signal.
摘要翻译：光谱分析仪和光信号的光谱分析方法。光谱分析仪包括诸如光调制器的波整形器，其形成光信号，分散元件如分散光纤，其中分布有成形光信号的检测器，提供表示分散的成形光信号的输出信号以及分析输出信号的信号处理器，例如通过计算诸如反相傅立叶变换或输出信号的傅里叶变换的变换来提供光信号的频谱。

27. 发明申请

US20090128814A1 Modulated polarizer-based polarimeter, and method for determining the polarization state of an optical signal 审中-公开
标题翻译：调制偏振器的偏振计，以及用于确定光信号的偏振状态的方法
公开(公告)号：US20090128814A1
公开(公告)日：2009-05-21
申请号：US11986630
申请日：2007-11-21
申请人： Bogdan Szafraniec
发明人： Bogdan Szafraniec
IPC分类号： G01J4/00
CPC分类号： G01J4/04
摘要： In one embodiment, a polarimeter includes a modulated polarizer, a detector and a processing system. The modulated polarizer is modulated at a modulation frequency and is configured to transmit a portion of an optical signal based on its modulation. The detector is configured to generate a time-varying output signal related to a time-varying power of the transmitted portion of the optical signal. The processing system is configured to i) detect at least three frequency components of the time-varying output signal, and ii) determine the polarization state of the optical signal based on the at least three frequency components.
摘要翻译：在一个实施例中，偏振器包括调制的偏振器，检测器和处理系统。调制的偏振器以调制频率被调制，并且被配置为基于其调制来发送光信号的一部分。检测器被配置为产生与光信号的发送部分的时变功率相关的时变输出信号。处理系统被配置为i）检测时变输出信号的至少三个频率分量，以及ii）基于至少三个频率分量来确定光信号的偏振状态。

28. 发明授权

US07466425B2 Elementary matrix based optical signal/network analyzer 有权
标题翻译：基于矩阵的光信号/网络分析仪
公开(公告)号：US07466425B2
公开(公告)日：2008-12-16
申请号：US11112457
申请日：2005-04-22
申请人： Bogdan Szafraniec
发明人： Bogdan Szafraniec
IPC分类号： G01B11/02 , G01N21/00
CPC分类号： G01M11/337 , G01J9/04 , G01J2009/0261
摘要： A method for characterizing a device under test includes propagating multiple optical signals through the device under test and combining the multiple optical signals with a reference optical signal. The multiple optical signals are mixed with the reference optical signal and a relative perturbation between the multiple optical signals from the mixing of the multiple optical signals with the reference optical signal is determined. In another embodiment a modulated optical signal is provided from a local oscillator and the modulated optical signal is combined with the input optical signal. The modulated optical signal is mixed with the input signal to provide a mixed signal and at least one polarization-resolved parameter of the input optical signal is extracted from the mixed signal.
摘要翻译：用于表征被测器件的方法包括通过被测器件传播多个光信号，并将多个光信号与参考光信号组合。多个光信号与参考光信号混合，并且确定来自多个光信号与参考光信号的混合的多个光信号之间的相对扰动。在另一个实施例中，调制的光信号由本地振荡器提供，并且调制的光信号与输入的光信号组合。调制的光信号与输入信号混合以提供混合信号，并且从混合信号中提取输入光信号的至少一个偏振解析参数。

29. 发明授权

US07272280B2 Optical coupler for measuring wavelength 失效
标题翻译：用于测量波长的光耦合器
公开(公告)号：US07272280B2
公开(公告)日：2007-09-18
申请号：US11013773
申请日：2004-12-16
申请人： Bogdan Szafraniec , Charles Lange
发明人： Bogdan Szafraniec , Charles Lange
IPC分类号： G02B6/26
CPC分类号： G02B6/2821 , G02B6/125 , G02B2006/12147
摘要： An optical coupler for measuring mean wavelength of a broadband optical source is described. Sensitivity of the optical coupler to variations of refractive index and coupler length is minimized. The sensitivity to the variations of the refractive index is minimized by making a difference between the group refractive indices of the symmetric and asymmetric propagation modes approximately constant and independent of the refractive index. The sensitivity to the variations of the coupler length is minimized by selecting the coupler length that makes output powers from two waveguides to the first order insensitive to its length. This selection is possible for broadband optical sources.
摘要翻译：描述了用于测量宽带光源的平均波长的光耦合器。光耦合器对折射率和耦合器长度的变化的灵敏度被最小化。通过使对称和不对称传播模式的组折射率之间的差近似恒定且与折射率无关，使对折射率变化的敏感度最小化。通过选择使来自两个波导的输出功率到对其长度不敏感的一阶的耦合器长度来最小化耦合器长度的变化的灵敏度。这种选择对于宽带光源是可能的。

30. 发明申请

US20060133734A1 Optical coupler for measuring wavelength 失效
标题翻译：用于测量波长的光耦合器
公开(公告)号：US20060133734A1
公开(公告)日：2006-06-22
申请号：US11013773
申请日：2004-12-16
申请人： Bogdan Szafraniec , Charles Lange
发明人： Bogdan Szafraniec , Charles Lange
IPC分类号： G02B6/26
CPC分类号： G02B6/2821 , G02B6/125 , G02B2006/12147
摘要： An optical coupler for measuring mean wavelength of a broadband optical source is described. Sensitivity of the optical coupler to variations of refractive index and coupler length is minimized. The sensitivity to the variations of the refractive index is minimized by making a difference between the group refractive indices of the symmetric and asymmetric propagation modes approximately constant and independent of the refractive index. The sensitivity to the variations of the coupler length is minimized by selecting the coupler length that makes output powers from two waveguides to the first order insensitive to its length. This selection is possible for broadband optical sources.
摘要翻译：描述了用于测量宽带光源的平均波长的光耦合器。光耦合器对折射率和耦合器长度的变化的灵敏度被最小化。通过使对称和不对称传播模式的组折射率之间的差近似恒定且与折射率无关，使对折射率变化的敏感度最小化。通过选择使来自两个波导的输出功率到对其长度不敏感的一阶的耦合器长度来最小化耦合器长度的变化的灵敏度。这种选择对于宽带光源是可能的。

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