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141. 发明公开

EP1345021A2 Determining optical characteristics of optical devices under test 审中-公开
标题翻译：光学装置的光学特性的测定待测试
公开(公告)号：EP1345021A2
公开(公告)日：2003-09-17
申请号：EP02023225.2
申请日：2002-10-16
申请人： Agilent Technologies, Inc.
发明人： VanWiggeren, Gregory D.
IPC分类号： G01M11/00
CPC分类号： G01M11/337 , G01M11/331 , G01M11/336
摘要： Systems, methods, computer-readable media for determining optical characteristics, such as polarization mode dispersion and/or polarization dependent loss, of device under test (DUTs) are provided. In this regard, one such system (10) includes a response analyzer (530) that receives data corresponding to responses of a DUT (300) to optical signals. The response analyzer computes fast and slow group delays corresponding to at least some of the optical signals, each of the fast and slow group delays being attributable to one of a first and a second principle state of polarization. The response analyzer then assigns each of the fast and slow group delays to a correct one of the first and second principle states of polarization for at least some of the optical signals.
摘要翻译：系统，方法，计算机可读介质用于确定性采矿光学特性，颜色：如被测设备（DUT）的偏振模色散和/或偏振相关损耗，设备的设置。在这方面，一个搜索系统（10）包括响应分析仪（530）没有接收数据对应于DUT（300）的光信号的反应。响应分析器计算快和慢组延迟对应于至少一些光学信号，每个快和慢组延迟能够属性的第一和第二偏振状态原则之一。响应分析器然后分配各快和慢组延迟偏振的第一和第二个原则状态的至少一些光学信号的正确的。

142. 发明公开

EP1191320A1 Measurement of polarization dependent characteristic of optical components 有权
标题翻译： Eigenschaft Optischer Einheiten的Messung derpolarisationsabhängigen
公开(公告)号：EP1191320A1
公开(公告)日：2002-03-27
申请号：EP01113886.4
申请日：2001-06-07
申请人： Agilent Technologies, Inc. (a Delaware corporation)
发明人： Stolte, Ralf
IPC分类号： G01M11/00
CPC分类号： G01M11/337 , G01M11/33 , G01M11/336
摘要： For measuring a polarization dependent parameter of an optical device under test - DUT - (30), an optical source (10) provides an optical stimulus signal at variable wavelengths, and a polarization translator (20) translates the polarization state of the optical stimulus signal applied from the optical source (10) at its input to its output in a deterministic way dependent on the wavelength of the optical stimulus signal. A receiving unit (40) receives an optical response signal from the DUT (30) to the applied optical stimulus signal, and an analyzing unit (60) analyzes received optical response signals for different wavelengths for determining values of the polarization dependent parameter of the DUT (30).
摘要翻译：为了测量被测光学器件的偏振相关参数 - DUT（30），光源（10）提供可变波长的光激励信号，偏振转换器（20）将光学刺激信号的偏振状态从光源（10）在其输入处以取决于光刺激信号的波长的确定性方式施加到其输出。接收单元（40）从DUT（30）接收到所应用的光激励信号的光响应信号，分析单元（60）分析用于不同波长的接收光响应信号，以确定DUT的偏振相关参数的值（30）。

143. 发明公开

EP1134607A2 Aligning and manufacturing components 审中-公开
标题翻译：对齐和制造组件
公开(公告)号：EP1134607A2
公开(公告)日：2001-09-19
申请号：EP00307875.5
申请日：2000-09-12
申请人： JDS Uniphase Inc.
发明人： Prunes, Vasile , Taylor, Robert S. , Colbourne, Paul
IPC分类号： G02B27/62 , G02B6/42 , G01M11/02
CPC分类号： G01M11/337 , G01M11/333 , G01M11/335 , G02B6/3834 , G02B6/4225 , G02B27/62
摘要： An object system is regarded as being equivalent to a system for generating an output of an O 2 sensor (12) or exhaust gas sensor from a target combined air-fuel ratio that is produced by combining target air-fuel ratios KCMD for respective cylinder groups (3, 4) according to a filtering process of the mixed model type. With the equivalent system as an object to be controlled, an air-fuel ratio processing controller (15) determines a target combined air-fuel ratio, and determines a target air-fuel ratio KCMD for each of the cylinder groups (3, 4) from the target combined air-fuel ratio. The air-fuel ratios in the cylinder groups (3, 4) are manipulated into the target air-fuel ratio according to a feed-forward control process.
摘要翻译：目标系统被认为相当于根据通过组合各气缸组的目标空燃比KCMD而产生的目标组合空燃比产生O2传感器（12）或排气传感器的输出的系统（根据混合模型类型的过滤过程，在等效系统作为要控制的对象的情况下，空燃比处理控制器（15）确定目标组合空燃比，并且针对每个气缸组（3,4）确定目标空燃比KCMD，从目标组合空燃比。根据前馈控制过程将气缸组（3,4）中的空燃比操纵成目标空燃比。

144. 发明公开

EP0257972A3 Method and apparatus for compensating fiber optic lead and connector losses in a fiber optic sensor 失效
标题翻译：用于补偿光纤传感器中的光纤引线和连接器损耗的方法和设备
公开(公告)号：EP0257972A3
公开(公告)日：1988-12-21
申请号：EP87307325
申请日：1987-08-19
申请人： SIMMONDS PRECISION PRODUCTS INC.
发明人： Spillman, William B., Jr.
IPC分类号： G01D05/26
CPC分类号： G01L1/241 , G01D5/268 , G01M11/335 , G01M11/337
摘要： Apparatus and method for compensating a photo sensor for losses in fiber optic cable leads or connectors and fluctuations in optical source power make use of a selected broadband optical source (10) in conjunction with a photoelastic fiber optic transducer (29) that uses a polarizer (26) and an analyzer (32) to polarize a part of the broadband signal. The part of the signal that is not polarized is transmitted through the photoelastic transducer (29) with no modulation, whereas the part of the signal that is polarized is modulated according to the stress on the photoelastic transducer. After transmitting the output light beam through a fiber optic cable (38), the beam is separated into two parts (44,46). The second part (46) is filtered so as to transmit only that part of the broadband signal that is not affected by the polarizer and analyzer and hence is not modulated, the filtered second part being converted to an electrical signal by a photo detector (54). The first part (44) of the split beam is filtered so as to transmit only that modulated part of the broadband signal that is affected by the polarizer and analyzer, the filtered first part being converted to an electrical signal by a photo detector (50). The first signal varies according to the lead and connector losses and the stress modulation on the photoelastic transducer (29), and the second signal varies according to lead and connector losses only. The ratio of the first signal to the second signal then provides a measure of the changes in the transmission due to the modulation of the stress transducer, without lead and connector losses.
摘要翻译：用于补偿光传感器在光纤电缆引线或连接器中的损耗以及光源功率波动的设备和方法利用选定的宽带光源（10）连同使用偏振器（（29））的光弹性光纤传感器（29） 26）和分析器（32）来极化宽带信号的一部分。非极化信号的一部分在没有调制的情况下透射通过光弹性换能器（29），而根据光弹性换能器上的应力调制极化信号的一部分。在通过光缆（38）传输输出光束之后，光束被分成两部分（44,46）。对第二部分（46）进行滤波，以便仅传输不受偏振器和分析仪影响的宽带信号部分，因此不被调制，滤波的第二部分被光检测器（54）转换为电信号）。对分离光束的第一部分（44）进行滤波，以便仅传输受偏振器和分析器影响的宽带信号的调制部分，滤波后的第一部分被光电检测器（50）转换为电信号，。第一个信号根据引线和连接器损耗以及光弹性传感器（29）上的应力调制而变化，第二个信号仅根据引线和连接器损耗而变化。第一信号与第二信号的比率然后提供由于应力传感器的调制引起的传输变化的量度，而没有引线和连接器损失。

145. 发明公开

EP2690801A1 Optical transmission system and method for monitoring polarization dependent characteristics of optical transmission line 审中-公开
标题翻译：一种光传输系统和方法，用于监测光传输线路的偏振相关特性
公开(公告)号：EP2690801A1
公开(公告)日：2014-01-29
申请号：EP13172486.6
申请日：2013-06-18
申请人： FUJITSU LIMITED
发明人： Nakashima, Hisao , Hoshida, Takeshi
IPC分类号： H04B10/079 , G01M11/00
CPC分类号： H04B10/07 , G01M11/336 , G01M11/337 , H04B10/07951
摘要： A method includes: sweeping an optical frequency of an optical signal by an optical transmitter controlling an electric-field information signal corresponding to a transmitted signal; providing different polarization states for individual frequencies of the optical signal by the optical transmitter controlling a mixture of a first electric-field information signal corresponding to a first transmitted signal and a second electric-field information signal corresponding to a second transmitted signal; obtaining, for individual frequencies of the optical signal, polarization dependent characteristics corresponding to different frequencies, when the optical transmitter sweeps the frequency of the optical signal, by an optical receiver calculating a polarization-dependent characteristic of an optical transmission line between the optical transmitter and the optical receiver, based on items of received-electric-field information corresponding to the different polarization states; and obtaining statistical information of a polarization state of the optical transmission line, based on the polarization dependent characteristics, with the optical receiver.
摘要翻译：一种方法，包括：通过光发射器的光信号的光频率的扫描对应于一个反mitted信号电场信息信号的控制; 由光发射器控制对应于第一反mitted信号和对应于第二反mitted信号的第二电场信息信号的第一电场信息信号的混合物提供用于所述光信号的各个频率不同的偏振状态; 获得，用于光学信号的各个频率，偏振相关特性对应于不同的频率，当光发射器在光接收器扫过光信号的频率，通过计算光发射器和之间的光学传输线的偏振相关特性光接收器，根据接收到的电场信息对应于不同的偏振状态的物品; 获得和光传输线的偏振状态的统计信息的基础上，偏振相关的特性，与所述光接收器。

146. 发明公开

EP1207377A3 Method and apparatus for measuring optical properties by means of the Jones matrix 审中-公开
标题翻译：用于测量使用琼斯矩阵的光学性能的方法和装置
公开(公告)号：EP1207377A3
公开(公告)日：2007-03-28
申请号：EP01126739.0
申请日：2001-11-09
申请人： Agilent Technologies, Inc.
发明人： Rosenfeldt, Harald , Van Wiggeren, Greg , Baney, Douglas
IPC分类号： G01J4/04 , G01M11/00
CPC分类号： G01M11/336 , G01M11/331 , G01M11/337 , G01M11/338 , G01N21/21
摘要： A method and an apparatus for determination of properties, e.g. of elements of the Jones matrix of an optical device under test, comprising the steps of: producing an incoming light beam, splitting the light beam into a first light beam and a second light beam, coupling the first light beam, preferably having two parts delayed with respect to each other, with a given initial polarization into the optical device under test, letting the second light beam travel a different path than the first light beam, superimposing the first light beam and the second light beam to produce interference between the first light beam and the second light beam in a resulting superimposed light beam, splitting the superimposed light beam into a third light beam polarization dependent and a fourth light beam, detecting the power of the third and the fourth light beam as a function of frequency when tuning the frequency of the incoming light beam over a given frequency range, deriving optical properties, e.g. elements of the Jones matrix, from the frequency dependency of the detected power.

147. 发明授权

EP1191320B1 Measurement of polarization dependent characteristic of optical components 有权
标题翻译：与偏振相关的光属性单元的测量
公开(公告)号：EP1191320B1
公开(公告)日：2007-03-07
申请号：EP01113886.4
申请日：2001-06-07
申请人： Agilent Technologies, Inc.
发明人： Stolte, Ralf
IPC分类号： G01M11/00
CPC分类号： G01M11/337 , G01M11/33 , G01M11/336

148. 发明公开

EP1613942A1 SINGLE SWEEP MEASUREMENT OF MULTIPLE OPTICAL CHARACTERISTICS 审中-公开
标题翻译：多个光学性质的个人断测量
公开(公告)号：EP1613942A1
公开(公告)日：2006-01-11
申请号：EP04759888.3
申请日：2004-04-14
申请人： Thorlabs, Inc.
发明人： ANDERSON, Duwayne, R.
IPC分类号： G01M11/00
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.

149. 发明公开

EP1562032A2 Heterodyne optical network analysis that utilizes signal modulation 审中-公开
标题翻译： Heterodyne optische Netzwerkanalyse unter Verwendung von Signalmodulation
公开(公告)号：EP1562032A2
公开(公告)日：2005-08-10
申请号：EP04025050.8
申请日：2004-10-21
申请人： Agilent Technologies Inc. (a Delaware Corporation)
发明人： Szafraniec, Bogdan
IPC分类号： G01M11/00
CPC分类号： G01M11/337 , G01M11/331 , G01M11/333 , G01M11/336
摘要： The group delay of a DUT is measured by modulating test and reference portions of a local oscillator signal at different frequencies to create modulation sidebands (205), applying the modulated test portion of the local oscillator signal to the DUT (120; 420; 920; 1020; 1120), and then optically mixing the two modulated signals. Optically mixing the two modulated signals translates the optical frequencies down to electrical frequencies. Phase changes that are caused by the DUT are determined by measuring the phase differences between modulation sidebands of the test portion of the local oscillator signal. Frequency translation can be achieved by electrical mixing instead of optical mixing.
摘要翻译： DUT的组延迟通过调制不同频率的本地振荡器信号的测试和参考部分来测量，以产生调制边带（205），将本地振荡器信号的调制测试部分施加到DUT（120; 420; 920; 1020; 1120），然后光学混合两个调制信号。将两个调制信号进行光学混合将光频率转换为电频率。由DUT引起的相位变化通过测量本地振荡器信号的测试部分的调制边带之间的相位差来确定。频率转换可以通过电气混合而不是光学混合来实现。

150. 发明公开

EP1368678A1 APPARATUS AND METHOD FOR MEASURING POLARIZATION DEPENDENT LOSS USING REPEATED HIGH SPEED POLARIZATION SCRAMBLING 有权
标题翻译：使用重复的高速极化扰乱来测量极化相关损耗的装置和方法
公开(公告)号：EP1368678A1
公开(公告)日：2003-12-10
申请号：EP02700829.1
申请日：2002-02-07
申请人： Donam Systems Inc.
发明人： KOH, Yeon-Wan , LEE, Bong-Wan , KIM, Jung-Won
IPC分类号： G02B5/30
CPC分类号： G01M11/337 , G02B6/105
摘要： Disclosed is an apparatus and method for measuring a changing amount of insertion loss of an optical device depending on a polarization state of an incident light, i.e., a polarization-dependent loss. An incident light that is periodically subject to all polarization states passes through a testing optical device by a polarization scrambler including a piezoelectric element type optical fiber birefringence modulator, and an optical detector measures intensity of the passing light, in which the measured intensity values are averaged for birefringence modulation having a constant period, and then the polarization-dependent loss is computed from a ratio of maximum power to minimum power for the period. Use of the birefringence modulator shortens measuring time, and decreases an affect of external disturbance to the incident light that is incident into the testing optical component or occurrence probability of the external disturbance, so that the polarization-dependent loss can be precisely measured.
摘要翻译：公开了一种用于根据入射光的偏振状态，即偏振相关损耗来测量光学器件的插入损耗的改变量的设备和方法。周期性地经受所有偏振态的入射光通过包括压电元件型光纤双折射调制器的偏振扰偏器穿过测试光学装置，并且光学检测器测量通过光的强度，其中测量的强度值被平均化对于具有恒定周期的双折射调制，然后根据该周期的最大功率与最小功率的比率来计算偏振相关损耗。使用双折射调制器缩短了测量时间，并降低了外部干扰对入射到测试光学部件中的入射光的影响或外部干扰的发生概率，从而可以精确测量偏振相关损耗。

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