-
公开(公告)号：US06825934B2
公开(公告)日：2004-11-30
申请号：US10099480
申请日：2002-03-14
IPC分类号： G01B902
CPC分类号： G01M11/3172 , G01M11/331
摘要： In the measurements of optical characteristics, such as measurements of group delay using an interferometric system, vibration noise can be at least partially offset by providing corrections on the basis of detecting light patterns that are indicative of the vibration noise. In each embodiment, light beams propagating through first and second paths are combined to form an interference signal, which is analyzed to provide the basis for the adjustments.
摘要翻译： 在光学特性的测量中，例如使用干涉仪系统的组延迟的测量，可以基于检测指示振动噪声的光图案提供校正来至少部分地偏移振动噪声。 在每个实施例中，通过第一和第二路径传播的光束被组合以形成干扰信号，其被分析以提供调整的基础。
-
2.发明授权Optical analyzer and method for reducing relative intensity noise in interferometric optical measurements using a continuously tunable laser 失效光学分析仪和使用连续可调激光器在干涉光学测量中降低相对强度噪声的方法公开(公告)号：US06882428B2
公开(公告)日：2005-04-19
申请号：US10305597
申请日：2002-11-27
CPC分类号： G01M11/331 , G01N21/21
摘要： A heterodyne optical network analyzer and method for device characterization reduces the effect of relative intensity noise (RIN) in interferometric optical measurements by subtracting the measured intensities of first and second interference signals derived from an optical interferometer. The first and second interference signals are produced by combining a first lightwave transmitted to an optical device being characterized with a second lightwave, which is a delayed version of the first lightwave. The first and second lightwaves are derived by splitting an input lightwave having a continuously swept optical frequency generated by a light source, such as a continuously tunable laser.
摘要翻译： 外差光网络分析仪和设备表征方法通过减去从光干涉仪得到的第一和第二干涉信号的测量强度来减少干涉光学测量中的相对强度噪声（RIN）的影响。 第一和第二干扰信号是通过组合传输到第一光波的第二光波的第二光波组合而产生的第一和第二干涉信号。第二光波是第一光波的延迟版本。 第一和第二光波通过分离由诸如连续可调谐激光器的光源产生的具有连续扫掠的光学频率的输入光波导出。
-
公开(公告)号：US07633633B2
公开(公告)日：2009-12-15
申请号：US10652638
申请日：2003-08-29
申请人： Douglas M. Baney , Marshall T. DePue , Tong Xie
发明人： Douglas M. Baney , Marshall T. DePue , Tong Xie
CPC分类号： G01S17/48 , G06F3/03543 , G06F3/0423
摘要： Utilizing frequency-dependent diffraction (also referred to as dispersion) to determine the angular position of a retro-reflective object within a scanning space. The technique involves dispersing an electromagnetic beam into a scanning space by frequency. If a retro-reflective object is located within the scanning space, the object will retro-reflect a portion of the dispersed beam having a frequency that is associated with the angular position of the retro-reflective object within the scanning space. The frequency of the retro-reflected beam is used to determine the angular position of the retro-reflective object within the scanning space. When a second beam is dispersed into the scanning space and a portion of the second beam is retro-reflected in the manner just described, a second angular position of the retro-reflective object can be found. Coordinates of the retro-reflective object are determinable by triangulation using the two angular positions. These are absolute, as opposed to relative, coordinates.
摘要翻译： 利用频率相关衍射（也称为色散）来确定反射物体在扫描空间内的角位置。 该技术包括通过频率将电磁波分散到扫描空间中。 如果逆反射物体位于扫描空间内，物体将反射具有与扫描空间内的回射物体的角位置相关联的频率的分散光束的一部分。 反射光束的频率用于确定反射物体在扫描空间内的角位置。 当第二光束分散到扫描空间中并且第二光束的一部分以刚刚描述的方式进行反射时，可以找到回射物体的第二角度位置。 逆反射物体的坐标可以通过使用两个角位置的三角测量来确定。 这些是绝对的，而不是相对坐标。
-
公开(公告)号：US07492351B2
公开(公告)日：2009-02-17
申请号：US10741952
申请日：2003-12-18
IPC分类号： G06F3/033
CPC分类号： G06F3/03545 , G06F3/0317 , G06F3/03543
摘要： A computer cursor control device includes (1) a light source generating light directed toward a stationary surface, (2) an optional phase modulator, (3) an optional function generator causing the phase modulator to periodically phase shift the light, and (4) a signal processor determining a direction in which the device is moving from a beat frequency or an asymmetry in the light intensity. Another computer cursor control device includes (1) an optical element combining reference and measurement beams to form a heterodyned beam, (2) a phase modulator located in an optical path of the reference beam or the measurement beam, (3) a function generator causing the phase modulator to phase shift the reference beam, and (4) a signal processor determining a direction in which the device is moving from a beat frequency of the heterodyned beam.
摘要翻译： 计算机光标控制装置包括：（1）产生朝向静止面的光的光源，（2）任选的相位调制器，（3）使所述相位调制器周期性地相移所述光的可选函数发生器，以及（4） 信号处理器确定设备从拍频或光强度的不对称性移动的方向。 另一个计算机光标控制装置包括（1）组合参考和测量光束以形成外差光束的光学元件，（2）位于参考光束或测量光束的光路中的相位调制器，（3）功能发生器， 所述相位调制器使所述参考光束相移，以及（4）信号处理器确定所述装置从所述外差束的拍频开始移动的方向。
-
公开(公告)号：US20080030736A1
公开(公告)日：2008-02-07
申请号：US11462681
申请日：2006-08-04
IPC分类号： G01N21/41
CPC分类号： G01N21/553
摘要： The use of a high power and an incoherent light source to reduce noise associated when investigating unknown molecules in Surface Plasmon Resonance (SPR) systems. High power and incoherent light sources can improve resolution and accuracy of SPR system measurements.
摘要翻译： 使用高功率和非相干光源来减少在研究表面等离子体共振（SPR）系统中未知分子时相关的噪声。 大功率和非相干光源可以提高SPR系统测量的分辨率和精度。
-
6.发明授权Method and system for optically tracking a target using interferometric technique 有权使用干涉技术光学跟踪目标的方法和系统公开(公告)号：US07078672B2
公开(公告)日：2006-07-18
申请号：US10758981
申请日：2004-01-16
IPC分类号： G06M7/00
CPC分类号： G06F3/0423 , G01S17/42 , G06F3/0346
摘要： An optical position-tracking system comprises an optical device for generating an incident light beam and a reference light beam from a light beam. Moreover, the optical position-tracking system further comprises a light beam steering device for sweeping the incident light beam through an angular range to cause a reflection of the incident light beam by a target, whereas the reflection of the incident light beam is directed to interfere with the reference light beam to form an interference light beam. Additionally, the optical position-tracking system enables determination of a position of the target using an interferometric technique utilizing an angular value of the incident light beam and the interference light beam, whereas the angular value depends on the reflection.
摘要翻译： 光学位置跟踪系统包括用于产生入射光束的光学装置和来自光束的参考光束。 此外，光学位置跟踪系统还包括光束转向装置，用于将入射光束扫过角度范围以引起入射光束被目标物反射，而入射光束的反射被引导干涉 用参考光束形成干涉光束。 此外，光学位置跟踪系统能够利用入射光束和干涉光束的角度值使用干涉技术来确定目标的位置，而角度值取决于反射。
-
7.发明授权公开(公告)号：US06970250B1
公开(公告)日：2005-11-29
申请号：US09488149
申请日：2000-01-20
申请人： Wayne V. Sorin , Douglas M. Baney
发明人： Wayne V. Sorin , Douglas M. Baney
IPC分类号： G01J9/04 , H04B10/04 , H04B10/06 , H04B10/08 , H04B10/142 , H04B10/148 , H04B10/152 , H04B17/00 , G01B9/02
摘要： Monitoring an optical signal utilizing optical heterodyne detection involves attenuating an input signal before the input signal is combined with a local oscillator signal. The input signal is attenuated in order improve the signal to noise ratio of the heterodyne signal that is generated when the input signal and the local oscillator signal are combined. The signal to noise ratio of the heterodyne signal improves with attenuation of the input signal, specifically in the case where the intensity noise from the input signal is the dominant noise source, because the heterodyne signal and the intensity noise of the input signal scale differently with attenuation of the input signal.
摘要翻译： 利用光外差检测来监测光信号涉及在将输入信号与本地振荡器信号组合之前衰减输入信号。 输入信号衰减，以提高当输入信号和本地振荡器信号组合时产生的外差信号的信噪比。 外差信号的信噪比随着输入信号的衰减而改善，特别是在输入信号的强度噪声是主要噪声源的情况下，因为外差信号和输入信号的强度噪声与 输入信号衰减。
-
8.发明授权Test structure for simultaneously characterizing two ports of an optical component using interferometer-based optical network analysis 失效使用基于干涉仪的光网络分析同时表征光学部件的两个端口的测试结构公开(公告)号：US06750973B2
公开(公告)日：2004-06-15
申请号：US10081774
申请日：2002-02-20
申请人： Tun Sein Tan , Douglas M. Baney
发明人： Tun Sein Tan , Douglas M. Baney
IPC分类号： G01B902
CPC分类号： G01M11/338 , G01M11/331
摘要： A test structure supports simultaneous characterization of a two port optical component. The test structure includes an input port for receiving an input signal from an optical source, two test ports for connecting the test structure to a component under test, separate optical paths for supplying reflected and transmitted optical response signals from the component under test to separate receivers, and optical components for combining a first portion of the input signal with the reflected optical response signal before the first portion of the input signal and the reflected optical response signal are detected by a first receiver and for combining a second portion of the input signal with the optical response signal before the second signal and the optical response signal are detected by a second receiver. The optical component of the test structure may be connected by optical fibers or integrated into a single substrate.
摘要翻译： 测试结构支持双端口光学部件的同时表征。 测试结构包括用于从光源接收输入信号的输入端口，用于将测试结构连接到被测元件的两个测试端口，用于将被测元件的反射和透射光响应信号提供给分离接收器的分离光路 并且用于将输入信号的第一部分与输入信号的第一部分之前的反射光响应信号和反射光响应信号组合的光学部件由第一接收器检测，并且用于将输入信号的第二部分与 第二信号之前的光响应信号和光响应信号由第二接收机检测。 测试结构的光学部件可以通过光纤连接或集成到单个基板中。
-
公开(公告)号：US06590666B2
公开(公告)日：2003-07-08
申请号：US09854070
申请日：2001-05-11
IPC分类号： G01B902
摘要： Heterodyne-based optical spectrum analysis involves measuring the sweep rate of a swept local oscillator signal and then generating an output signal that accounts for non-uniformities in the sweep rate of the swept local oscillator signal. In an embodiment, an input signal is combined with a swept local oscillator signal in an optical coupler and the sweep rate of the swept local oscillator signal is measured in a relative frequency measurement system. The combined optical signal is output from the optical coupler to a receiver and a heterodyne beat signal is generated. The heterodyne beat signal and measured local oscillator frequency sweep rate information are utilized by a signal processor to generate an output signal that is indicative of an optical parameter of the input signal and that accounts for non-uniformities in the sweep rate of the local oscillator signal. Because the actual sweep rate of the swept local oscillator signal is measured during analysis of the input signal, the horizontal scale accuracy of heterodyne-based OSAs is improved.
-
10.发明授权公开(公告)号：US06535289B1
公开(公告)日：2003-03-18
申请号：US09586404
申请日：2000-06-02
申请人： Douglas M. Baney , Wayne V. Sorin
发明人： Douglas M. Baney , Wayne V. Sorin
IPC分类号： G10B902
摘要： An optical heterodyne detection system includes an optical pre-selector that has an adjustable passband which is adjusted to track the wavelength of a swept local oscillator signal. In an embodiment, an input signal is combined with a swept local oscillator signal and the combined optical signal is filtered by the optical pre-selector. In another embodiment, the input signal is filtered by the optical pre-selector before the input signal and the swept local oscillator signal are combined. Filtering the input signal or the combined input signal and the swept local oscillator signal to pass a wavelength band that tracks the wavelength of the swept local oscillator signal reduces the noise contributed from WDM signals and increases the dynamic range of the optical heterodyne detection system. An embodiment of the optical heterodyne detection system includes an optical combining unit, an optical pre-selector for the combined input and swept local oscillator signals, and a photodetector. Another embodiment of the optical heterodyne detection system includes an optical pre-selector for the input signal, an optical combining unit, and a photodetector.
摘要翻译： 光学外差检测系统包括具有可调整通带的光学预选器，其被调整以跟踪扫描本地振荡器信号的波长。 在一个实施例中，输入信号与扫频本地振荡器信号组合，并且组合的光信号被光学预选器滤波。 在另一个实施例中，输入信号在输入信号和扫频本地振荡器信号组合之前被光学预选器滤波。 滤波输入信号或组合的输入信号和扫频本地振荡器信号以通过跟踪扫频本地振荡器信号的波长的波长带，降低了从WDM信号贡献的噪声，并增加了光学外差检测系统的动态范围。 光学外差检测系统的实施例包括光学组合单元，用于组合输入和扫描本地振荡器信号的光学预选器，以及光电检测器。 光外差检测系统的另一实施例包括用于输入信号的光学预选器，光学组合单元和光电检测器。
-
-
-
-
-
-
-
-
-
搜索结果
76 条记录 (耗时 0.026 秒)