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101. 发明申请

US20040264842A1 Measuring coupling characteristics of optical devices 审中-公开
标题翻译：测量光学器件的耦合特性
公开(公告)号：US20040264842A1
公开(公告)日：2004-12-30
申请号：US10608726
申请日：2003-06-27
发明人： Tsung-Ein Tsai , John N. Sweetser , Anders Grunnet-Jepsen , Ping Qu , Everett Wang , Yi Ding
IPC分类号： G02B006/35 , G02B006/27
CPC分类号： G01M11/337 , G02B6/2821
摘要： The coupling properties of an optical device having at least two inputs and two outputs may be more accurately measured by simultaneously measuring the optical transmission through all outputs for light coupled to each input to the device. An optical switch may be used to selectively couple the light to each of the device inputs. This removes the need to remove the light source from one input and to reconnect it to another input. By proper processing of the measured optical transmission corresponding to each input, an accurate and precise value for the transfer function, including polarization properties, of the device may be obtained independent of the insertion losses in the system.
摘要翻译：具有至少两个输入和两个输出的光学器件的耦合特性可以通过同时测量通过耦合到器件的每个输入的光的所有输出的光学透射来更精确地测量。可以使用光学开关来选择性地将光耦合到每个设备输入。这消除了从一个输入中移除光源并将其重新连接到另一个输入的需要。通过对与每个输入相对应的测量光传输的适当处理，可以独立于系统中的插入损耗来获得器件的传递函数（包括偏振特性）的精确和精确的值。

102. 发明申请

US20040207833A1 SINGLE SWEEP MEASUREMENT OF MULTIPLE OPTICAL CHARACTERISTICS 失效
标题翻译：单光度测量多光学特性
公开(公告)号：US20040207833A1
公开(公告)日：2004-10-21
申请号：US10417742
申请日：2003-04-16
发明人： Duwayne R. Anderson
IPC分类号： G01N021/00
CPC分类号： G01M11/33 , G01M11/337
摘要： A method of measuring multiple optical characteristics of an optical device during a single sweep of a swept wavelength optical system cyclically changes an input state of polarization on consecutive optical frequency increments of an optical signal within the wavelength range of the swept wavelength optical system. From the measured output states of polarization a wavelength-dependent Jones matrix is calculated, and from the Jones matrix the multiple optical characteristics are determined, which characteristics may include PDL and DGD.
摘要翻译：在扫描波长光学系统的单次扫描期间测量光学器件的多个光学特性的方法在扫描波长光学系统的波长范围内周期性地改变光信号的连续光学频率增量上的输入偏振状态。从测量的偏振态输出状态计算波长依赖的琼斯矩阵，并且从琼斯矩阵确定多个光学特性，哪些特征可以包括PDL和DGD。

103. 发明授权

US06762829B2 Measurement of optical properties of passive optical devices using the matrix method 失效
标题翻译：使用矩阵法测量无源光学器件的光学特性
公开(公告)号：US06762829B2
公开(公告)日：2004-07-13
申请号：US10373736
申请日：2003-02-27
申请人： François Babin , Normand Cyr
发明人： François Babin , Normand Cyr
IPC分类号： G01N2100
CPC分类号： G01N21/21 , G01J4/04 , G01M11/337
摘要： A property of a device that is dependent upon both wavelength and state of polarization is measured by; passing through the device an optical signal having its wavelength and SOP varied, the wavelength over a spectral range of the device and the SOP between four Mueller SOPs; measuring the insertion loss of the device for each of the four SOPS and at each wavelength; using the four insertion loss measurements for each of the four different states of polarization for each wavelength to compute the four elements of the first line of the Mueller matrix for each wavelength; and using the Mueller matrix elements, computing insertion loss variations for the device for a multiplicity of input states of polarization in addition to the four states of polarization for which the actual attenuation measurements were made and using the insertion loss variations to compute the polarization and wavelength dependent property.
摘要翻译：取决于波长和极化状态的器件的性质是通过测量的; 通过该器件具有其波长和SOP的光信号变化，器件的光谱范围上的波长和四个Mueller SOP之间的SOP; 测量四个SOPS中每一个和每个波长的器件的插入损耗; 对于每个波长使用四种不同极化状态中的每一种的四次插入损耗测量来计算每个波长的Mueller矩阵的第一行的四个元素; 并且使用Mueller矩阵元素，除了进行实际衰减测量的四个极化状态之外，还计算多个输入极化状态的装置的插入损耗变化，并且使用插入损耗变化来计算极化和波长依赖财产。

104. 发明申请

US20040001202A1 Method for measuring polarization dependent loss and insertion loss 有权
标题翻译：用于测量偏振相关损耗和插入损耗的方法
公开(公告)号：US20040001202A1
公开(公告)日：2004-01-01
申请号：US10398318
申请日：2003-04-07
发明人： Stephane Caplette , Sylvain Cloutier , Charles Massicotte , Alain Villeneuve
IPC分类号： G01J004/00
CPC分类号： G01M11/00 , G01M11/33 , G01M11/337
摘要： This invention provides a method of obtaining accurate measurements of polarization dependent loss and insertion loss during the tests aiming at measuring the polarization properties of optical components. This is achieved by taking into account every polarization disturbance in the line between generation of known states of polarization and the device under test. The method involves computing within a desired range of wavelengths either the transfer matrix of each polarization perturbing element or of all polarization perturbing elements as a whole, and compensating for errors introduced by these polarization perturbing elements.
摘要翻译：本发明提供了一种在针对测量光学部件的偏振特性的测试期间获得精确测量偏振相关损耗和插入损耗的方法。这是通过考虑在已知的极化状态的产生和被测器件之间的线中的每个极化扰动来实现的。该方法涉及在期望的波长范围内计算每个偏振扰动元件的传递矩阵或者所有极化扰动元件的整体，并补偿由这些偏振扰动元件引入的误差。

105. 发明授权

US06650406B1 Polarization dependent loss measurement in photonic devices 有权
标题翻译：光子器件中极化相关的损耗测量
公开(公告)号：US06650406B1
公开(公告)日：2003-11-18
申请号：US10237213
申请日：2002-09-09
申请人： Louis B. Allard , Jonathan Paradis , John C. Martinho
发明人： Louis B. Allard , Jonathan Paradis , John C. Martinho
IPC分类号： G01N2100
CPC分类号： G01M11/337
摘要： In order to calibrate an apparatus for measuring the polarization dependent loss of an optical device under test, a set of nominal polarization states of incident light are generated with a polarization generator. The incident light is then passed through a dot-product conserving polarization rotator at a first setting. A transmission characteristic is measured through a standard optical component with a known polarization dependent loss value for each polarization state. This step is repeated for a number of different settings of the polarization rotator. A polarization dependent loss value is calculated for the standard optical component based on the measured transmission characteristics at each polarization rotator setting. The calculated polarization dependent loss values are then processed to generate an aggregate error value. The aggregate error value is minimized by adjusting the values of the nominal polarization states to estimate the actual polarization states, which can then be used to calculate the polarization dependent loss of an optical device whose value is unknown.
摘要翻译：为了校准用于测量被测光学器件的偏振相关损耗的装置，利用偏振发生器产生一组入射光的标称极化状态。然后入射光在第一设定下通过点积保存偏振旋转器。透射特性通过具有已知偏振相关损耗值的标准光学元件测量，用于每个偏振状态。对于偏振旋转器的许多不同设置重复该步骤。基于每个偏振旋转器设置下测量的传输特性，为标准光学部件计算极化相关损耗值。然后处理所计算的偏振相关损耗值以产生聚合误差值。通过调整标称极化状态的值来估计聚合误差值，以估计实际极化状态，然后可以将其用于计算其值未知的光学器件的偏振相关损耗。

106. 发明申请

US20030117625A1 Polarization dependent loss measuring apparatus 失效
标题翻译：偏振相关损耗测量仪
公开(公告)号：US20030117625A1
公开(公告)日：2003-06-26
申请号：US10322840
申请日：2002-12-18
申请人： Ando Electric Co., Ltd.
发明人： Kiyohisa Fujita
IPC分类号： G01J004/00
CPC分类号： G01M11/337
摘要： Wavelength dependent measurement is made by launching light into an object 8 to be measured and receiving transmitted light from the object 8 while continuously changing wavelengths of output light. Next, peak wavelength detection processing for detecting a wavelength at the time when loss or gain of the transmitted light from the object 8 becomes maximum based on a wavelength dependent measurement result is performed. Then, polarization dependent loss measurement processing for measuring polarization dependent loss of the object 8 is performed by measuring the transmitted light from the object 8 while launching light of a measurement wavelength detected into the object 8 and randomly changing a polarization state of the light. Further, a control circuit processes associating a wavelength dependent analysis result with a PDL measurement result, and displays its result on a display part 2.
摘要翻译：通过将光发射到待测量的对象8中并且在连续改变输出光的波长的同时接收来自对象8的透射光而进行波长依赖测量。接着，进行基于波长相关测量结果来检测来自对象8的透射光的损失或增益变为最大时的波长的峰值波长检测处理。然后，通过在检测到对象8的测量波长的光的同时测量来自对象8的透射光并随机改变光的偏振状态来进行用于测量对象8的偏振相关损耗的偏振相关损耗测量处理。此外，控制电路处理将波长相关分析结果与PDL测量结果相关联，并将其结果显示在显示部分2上。

107. 发明授权

US6147757A Apparatus and method employing depolarization to eliminate effect of polarization dependent loss 有权
标题翻译：使用去极化以消除偏振相关损耗的影响的装置和方法
公开(公告)号：US6147757A
公开(公告)日：2000-11-14
申请号：US255934
申请日：1999-02-23
申请人： Paisheng Shen , Peter C. Chang
发明人： Paisheng Shen , Peter C. Chang
IPC分类号： G01J4/00 , G01M11/00
CPC分类号： G01M11/337 , G01J4/00
摘要： An apparatus for measuring the IL (insertion loss) and the PDL (polarization dependent loss) of an optical device, includes a first switch adapted to connected to plural light sources on one side and to either a first depolarizer or a polarization controller on the other side thereof. A second switch is connected to both the first depolarizer and the polarization controller on one side and to the device under test on the other side. A detection instrument is connected to the device under test opposite to the second switch. Therefore, a first test path is set up from the light source, the first switch, the first depolarizer, the second switch, the device under test (DUT), to the detection instrument for measuring the pure IL of the DUT without the PDL involved therein, while a second test path is set up from the light source, the polarization controller, the second switch, the DUT, to the detection instrument for measuring the PDL of the DUT.
摘要翻译：用于测量光学装置的IL（插入损耗）和PDL（偏振相关损耗）的装置包括：第一开关，其适于连接到一侧的多个光源以及另一个上的第一去偏振器或偏振控制器侧。第二开关在一侧连接到第一去极化器和偏振控制器，另一侧连接到被测器件。检测仪器被连接到与第二开关相对的被测器件。因此，将第一测试路径从光源，第一开关，第一去极化器，第二开关，被测器件（DUT）建立到用于测量DUT的纯IL的检测仪器，而不涉及PDL 其中，从光源，偏振光控制器，第二开关，DUT到第二测试路径，到用于测量DUT的PDL的检测仪器。

108. 发明授权

US5965874A Method and apparatus for measuring the polarization characteristics of optical transmission medium 失效
标题翻译：用于测量光传输介质极化特性的方法和装置
公开(公告)号：US5965874A
公开(公告)日：1999-10-12
申请号：US807870
申请日：1997-02-26
申请人： Osamu Aso , Isamu Ohshima , Haruki Ogoshi
发明人： Osamu Aso , Isamu Ohshima , Haruki Ogoshi
IPC分类号： G01J4/00 , G01J4/04 , G01M11/00 , G01N21/21 , G02F1/01
CPC分类号： G01J4/00 , G01J4/04 , G01M11/336 , G01M11/337 , G01N21/21
摘要： A method to obtain polarization characteristics of an optical transmission medium is disclosed. Sequentially plural different states of polarized light are launched into the optical transmission medium. Intensities of light emerging from the optical transmission medium through combinations of optical elements are measured to obtain Stokes parameters from which Stokes vectors describing the emerging light corresponding to each of the plural sequentially launched states of polarization are obtained; for at least three different launched states of polarization, descriptors are used of these launched states of polarization and the Stokes vectors describing the corresponding emerging light to calculate a Jones matrix which mathematically models the changes that the launched light when described in terms of a Jones vector is subject to when passing through the optical transmission medium; and, the Jones matrix is used to describe the polarization characteristics of the optical transmission medium.
摘要翻译：公开了一种获得光传输介质的偏振特性的方法。顺序地将多个不同的偏振光状态发射到光传输介质中。测量通过光学元件的组合从光传输介质出射的光的强度，以获得斯托克斯参数，从其中获得描述与多个顺序发射的极化状态中的每一个相对应的出射光的斯托克斯矢量; 对于至少三种不同的发射极化状态，使用这些发射的极化状态的描述符，并且描述相应的出射光的斯托克斯矢量来计算琼斯矩阵，该矩阵在以Jones矢量描述时对发射的光进行数学模拟经过光传输介质时经受; 并且，Jones矩阵用于描述光传输介质的偏振特性。

109. 发明授权

US5408545A Depolarizer for fiber optic applications and method using same 失效
标题翻译：光偏振器用于光纤应用及其使用方法
公开(公告)号：US5408545A
公开(公告)日：1995-04-18
申请号：US183661
申请日：1994-01-19
申请人： Ho-Shang Lee , Jer-Chen Kuo , Wujun Zhou
发明人： Ho-Shang Lee , Jer-Chen Kuo , Wujun Zhou
IPC分类号： G01M11/00 , G02B6/34 , G02B6/10 , G02B6/16
CPC分类号： G01M11/337 , G02B6/274 , G02B6/2786
摘要： A technique for causing the distribution of the state of polarization of an optical signal carried in a single-mode optical fiber to be substantially diversified over a time interval. When such a depolarized optical signal is fed into an optical detector, the polarization dependent loss (PDL) of the optical signal attributable to the detector is thereby normalized. By normalizing the PDL attributable to the detector, it is then possible to more accurately measure any PDL of the optical signal attributable to the optical signal passing through an optical device under test.
摘要翻译：用于使单模光纤中承载的光信号的偏振状态的分布在时间间隔上基本上多样化的技术。当这种去偏振的光信号被馈送到光学检测器中时，归因于检测器的光信号的偏振相关损耗（PDL）被归一化。通过归一化归属于检测器的PDL，则可以更准确地测量归因于通过被测光学器件的光信号的光信号的任何PDL。

110. 发明授权

US5337375A Depolarizer using unpumped, doped optical fiber and method using same 失效
标题翻译：去偏振器采用未掺杂的掺杂光纤和使用其的方法
公开(公告)号：US5337375A
公开(公告)日：1994-08-09
申请号：US999080
申请日：1992-12-31
申请人： Bruce M. Nyman , Gregory M. Wolter
发明人： Bruce M. Nyman , Gregory M. Wolter
IPC分类号： H01S3/00 , G01M11/00 , H01S3/06 , H01S3/07 , H01S3/10 , H04B10/135 , G02B6/10 , H01S3/30
CPC分类号： G01M11/337 , G01M11/333 , H04B10/2572
摘要： Previous efforts to measure polarization dependent loss of optical components have been limited in uncertainty to more than 0.01 dB. This is because the power meter used in a test set contains polarization dependent loss which adversely affects the final readings. It is here disclosed that an unpumped erbium doped fiber can convert a received polarized signal into unpolarized amplified spontaneous emission of a longer wavelength if the fiber is of sufficient length to absorb the received signal. By locating the inventive unpumped erbium doped fiber upstream of the power meter of a test set, the polarized signal to the power meter is coverted to an unpolarized signal and, therefore, the polarization dependent loss of the power meter can not influence the measurement obtained.
摘要翻译：以前用于测量光学部件的偏振相关损耗的努力在不确定性方面被限制在大于0.01dB。这是因为测试仪中使用的功率计包含偏振相关损耗，对最终读数有不利影响。这里公开了如果光纤足够长以吸收接收信号，则未掺铒掺杂光纤可以将接收的偏振信号转换成更长波长的非偏振放大的自发发射。通过将本发明的未掺铒掺杂光纤定位在测试仪的功率计上游，将功率计的偏振信号覆盖到非偏振信号，因此功率计的偏振相关损耗不能影响所获得的测量值。

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