公开(公告)号：US06657723B2

公开(公告)日：2003-12-02

申请号：US09736006

申请日：2000-12-13

Applicant: Mitchell S. Cohen ,  George A. Sefler ,  James L. Speidell

Inventor： Mitchell S. Cohen ,  George A. Sefler ,  James L. Speidell

IPC: G01J328

CPC classification number: G02B6/12007 ,  G01J3/0259 ,  G01J3/28 ,  G01J3/2803 ,  G02B6/29326 ,  G02B6/29328 ,  G02B6/4215

Abstract: A planar spectrograph for demultiplexing optical wavelength signals includes a monolithic substrate. The substrate has a diffraction grating etched therein. The diffraction grating is integrally formed in the substrate to be in operative relationship with input light to diffract and reflect the input light to a detector. A recess is formed in the substrate to accommodate a separate slab waveguide. A slab waveguide is dimensioned and configured to fit within the recess, and the waveguide guides input light to and from the diffraction grating. A silicon-on-insulator spectrographs is also described, as well as, fabrication processes for manufacturing these spectrographs.

Abstract translation: 用于解复用光波长信号的平面光谱仪包括单片基板。 衬底具有蚀刻在其中的衍射光栅。 衍射光栅整体地形成在基板中以与输入光处于操作关系，以将输入光衍射并反射到检测器。 在衬底中形成凹槽以容纳单独的平板波导。 平板波导的尺寸和构造被配置成装配在凹槽内，并且波导将输入光与衍射光栅相连。 还描述了绝缘体上的光刻仪，以及用于制造这些光谱仪的制造工艺。

公开(公告)号：US06573990B1

公开(公告)日：2003-06-03

申请号：US09564298

申请日：2000-05-03

Applicant: Duwayne R. Anderson

Inventor： Duwayne R. Anderson

IPC: G01J328

CPC classification number: G01J3/1804 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0243 ,  G01J3/0294 ,  G01J2003/1828 ,  G01J2003/2866 ,  G02B6/3534 ,  G02B6/3568 ,  G02B6/3586

Abstract: An optical system having a first order spectral range that is usable in an optical spectrum analyzer receives an broadband optical test signal and a optical calibration signal and couples the optical signals via two optically isolated paths to separate optical detectors. First and second pairs of optical fibers, with each pair having an input fiber and an output fiber, are positioned in a focal plane of a collimating optic that has an optical axis. The fiber pairs are symmetrically positioned on either side of the optical axis with the input fibers positioned on one side of the optical axis and the output fibers positioned on the opposite side of the optical axis. The input fibers receive the optical test signal and the optical calibration signal. The output optical fibers are coupled to first and second optical detectors. An optical calibration source generates second order or greater spectral lines that fall within the first order spectral range of the optical system. A diffraction grating receives the optical test signal and the optical calibration signal from the collimating optic and separates the first order spectral components of the broadband optical test signal and passes the second order or greater spectral lines of the optical calibration signal. The first optical detector that is responsive to the first order spectral components of the optical test signal receives the optical test signal from the collimating optic and converts the optical test signal to an electrical signal. A second optical detector that is responsive to the second order or greater spectral lines of the optical calibration signal concurrently receives the optical calibration signal from the collimating optic and converts the calibrations signal to an electrical signal.

Abstract translation: 具有可用于光谱分析仪中的一阶光谱范围的光学系统接收宽带光学测试信号和光学校准信号，并且经由两个光学隔离路径将光信号耦合到分离的光学检测器。 每对具有输入光纤和输出光纤的第一和第二对光纤被定位在具有光轴的准直光学器件的焦平面中。 光纤对对称地位于光轴的任一侧，其中输入光纤位于光轴的一侧，并且输出光纤位于光轴的相反侧。 输入光纤接收光学测试信号和光学校准信号。 输出光纤耦合到第一和第二光学检测器。 光学校准源产生落在光学系统的一阶光谱范围内的第二级或更多光谱线。 衍射光栅接收来自准直光学器件的光学测试信号和光学校准信号，并分离宽带光学测试信号的一阶光谱分量，并通过光学校准信号的第二级或更多谱线。 响应于光学测试信号的一阶光谱分量的第一光学检测器从准直光学器件接收光学测试信号，并将光学测试信号转换为电信号。 响应于光学校准信号的二阶或更高谱线的第二光学检测器同时从准直光学器件接收光学校准信号，并将校准信号转换为电信号。

公开(公告)号：US06556297B1

公开(公告)日：2003-04-29

申请号：US09724638

申请日：2000-11-28

Applicant: Gregory G. Cappiello

Inventor： Gregory G. Cappiello

IPC: G01J328

CPC classification number: H04J14/02 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0286 ,  G01J3/14 ,  G01J3/18 ,  G01J3/2803 ,  G02B5/18 ,  G02B6/2931 ,  G02B6/29385 ,  G02B6/29398 ,  G02B7/008 ,  G02B7/028 ,  G02B27/1073 ,  G02B27/108 ,  G02B27/1086 ,  G02B27/123 ,  G02B27/126 ,  H04B10/077 ,  H04B10/07955 ,  H04J14/0201

Abstract: A device for monitoring wavelength division multiplexed optical signals for use in an optical network and in an optical performance monitor. A device has a structure for supporting components of the device. An optical component is supported at one end of the structure for transmitting the optical signals. A diffraction grating is supported at an opposing end of the structure for diffracting the optical signals from the optical component. An optical sensor is supported in relation to the diffraction grating by the structure for monitoring the optical signals. A telephoto lens assembly is supported by the structure and disposed between the optical sensor and the diffraction grating, the lens assembly having a focal length for focusing the optical signals in relation to the optical sensor. Thermal effects on the structure are balanced against thermal effects on the lens assembly. A prism is disposed between the lens assembly and diffraction grating. The prism is configured to anamorphically compress the diffracted optical signals. Thermal effects on the diffraction grating are balanced against thermal effects on the lens and prism.

Abstract translation: 一种用于监视在光网络和光学性能监视器中使用的波分复用光信号的装置。 装置具有用于支撑装置的部件的结构。 光学部件被支撑在用于传输光信号的结构的一端。 衍射光栅被支撑在用于衍射光学部件的光学信号的结构的相对端。 通过用于监测光信号的结构，相对于衍射光栅支撑光学传感器。 长焦透镜组件由该结构支撑并且设置在光学传感器和衍射光栅之间，透镜组件具有用于相对于光学传感器聚焦光学信号的焦距。 对结构的热效应与透镜组件的热效应相平衡。 棱镜设置在透镜组件和衍射光栅之间。 棱镜被配置成变形地压缩衍射的光信号。 对衍射光栅的热效应与透镜和棱镜上的热效应相平衡。

公开(公告)号：US06552788B1

公开(公告)日：2003-04-22

申请号：US09901216

申请日：2001-07-09

Applicant: Kenneth R. Castle

Inventor： Kenneth R. Castle

IPC: G01J328

CPC classification number: G01J3/2823 ,  G01J3/0208 ,  G01J3/2803

Abstract: An image acquisition system employs a spectral imaging system whose focusing optics provide a linear dispersion of color along a tilted focal plane which intercepts each spectral component at the correct focal distance for that color.

Abstract translation: 图像采集系统采用光谱成像系统，其聚焦光学器件沿着倾斜的焦平面提供颜色的线性色散，该倾斜焦平面截取针对该颜色的正确焦距的每个光谱分量。

公开(公告)号：US06404492B1

公开(公告)日：2002-06-11

申请号：US09068028

申请日：1998-07-07

Applicant: Kexin Xu ,  Keiichi Fukada

Inventor： Kexin Xu ,  Keiichi Fukada

IPC: G01J328

CPC classification number: G01J3/10 ,  G01J2003/1828

Abstract: An acousto-optic tunable filter 4 including: an acousto-optic crystal 41; an acoustic wave driver 42; and a piezoelectric transducer 43, is provided in front of a light source section 2 including a plurality of light sources 2A, 2B, . . . 2N having different wavelength characteristics. The frequency of RF generated by the acoustic wave driver 42 is varied in accordance with a desired wavelength. Thus, the light having the desired wavelength is incident on a converging lens 5 as plus and minus first-order light beams, and the light having wavelengths other than the desired wavelength is incident on a converging lens 5 as a zero-order light beam. The converging lens 5 converges the plus and minus first-order light beams and the zero-order light beams at positions different from each other. A selector 6 having openings located at the positions onto which the plus and first-order light beams are converged is provided in front of the converging lens 5. Therefore, only the light having the desired wavelength can pass through the selector 6 and is emitted from the light source apparatus 1.

Abstract translation: 声光可调滤波器4，包括：声光晶体41; 声波驱动器42; 并且在包括多个光源2A，2B的光源部2的前方设置有压电换能器43。 。 。 2N具有不同的波长特性。 由声波驱动器42产生的RF的频率根据期望的波长而变化。 因此，具有期望波长的光作为正，负一级光束入射在会聚透镜5上，并且具有期望波长的波长的光作为零级光束入射在会聚透镜5上。 会聚透镜5将正，负一级光束和零级光束会聚在彼此不同的位置。 在会聚透镜5的前面设置有具有位于正和一级光束会聚的位置的开口的选择器6。因此，只有具有所需波长的光才能通过选择器6并从 光源装置1。

公开(公告)号：US06288382B1

公开(公告)日：2001-09-11

申请号：US09418308

申请日：1999-10-14

Applicant: Mitsuhiro Ishihara

Inventor： Mitsuhiro Ishihara

IPC: G01J328

CPC classification number: G01B9/04 ,  G02B21/0036 ,  G02B21/004

Abstract: The micro-scanning multislit confocal image acquisition apparatus of the present invention is a confocal image acquisition apparatus that comprises a nonscanning multislit confocal image acquisition system using a slit array instead of a pinhole array and a multislit-image microscanning mechanism for moving the image of the slit array in a small back and forth motion with respect to the object during each exposure of the two-dimensional arrayed photodetector in one complete measurement. Microscanning the image of the slit array with an amplitude equal to half the distance between adjacent slits increase the aperture ratio of the pixels to 100 percent, reducing blind regions to zero. As a result, this apparatus can measure a small object that cannot be measured by a conventional nonscanning confocal image acquisition apparatus because of blind regions. Microscanning the image of the slit array can also reduce the effect of speckles, another problem of a conventional nonscanning confocal image acquisition apparatus, by averaging the reflected light passing through each aperture of the slit array.

Abstract translation: 本发明的微扫描多照相共焦图像获取装置是一种共焦图像获取装置，其包括使用狭缝阵列而不是针孔阵列的非渐变多照明共焦图像采集系统和用于移动图像的多照片图像显微机构 狭缝阵列在一次完全测量中在二维阵列式光电检测器的每次曝光期间相对于物体的小的前后运动。 以等于相邻狭缝之间的距离的一半的幅度扫描狭缝阵列的图像将像素的孔径比增加到100％，将盲区减少到零。 结果，该装置可以测量由于盲区而不能由传统的非相干共聚焦图像获取装置测量的小物体。 通过对穿过狭缝阵列的每个孔的反射光进行平均，微扫扫缝阵列的图像也可以减少斑点的影响，这是传统非相干共聚焦图像获取装置的另一个问题。

公开(公告)号：US06804001B1

公开(公告)日：2004-10-12

申请号：US10110775

申请日：2002-04-26

Applicant: Thierry Leroux

Inventor： Thierry Leroux

IPC: G01J328

CPC classification number: G01J3/2803 ,  G01N21/00 ,  G02F1/1309

Abstract: A device for measuring the space distribution of the spectral emission of an object. The device includes a first lens forming in its Fourier plane an image constituting the optical Fourier transform of a zone of the object, a second lens, a diaphragm conjugated optically with the zone by the first and second lenses, a mechanism for selecting a rectilinear portion of the image, a mechanism for dispersion of the light corresponding to this portion, and a sensor receiving the dispersed light. The spectral response of the zone, for each point of the portion, is determined by signals from the sensor. The device is applicable in particular to display screens.

Abstract translation: 一种用于测量物体的光谱发射的空间分布的装置。 该装置包括在其傅立叶平面上形成构成物体区域的光学傅里叶变换的图像，第二透镜，通过第一和第二透镜与该区域光学共轭的膜片的第一透镜，用于选择直线部分 的图像，用于分散对应于该部分的光的机构，以及接收分散光的传感器。 对于该部分的每个点，该区域的光谱响应由来自传感器的信号确定。 该设备特别适用于显示屏幕。

公开(公告)号：US06801310B2

公开(公告)日：2004-10-05

申请号：US10209879

申请日：2002-08-02

Applicant: Anthony S. Kewitsch ,  George Rakuljic ,  Victor Leyva

Inventor： Anthony S. Kewitsch ,  George Rakuljic ,  Victor Leyva

IPC: G01J328

CPC classification number: G02B6/2931 ,  G02B6/2713 ,  G02B6/272 ,  G02B6/2773 ,  G02B6/2793 ,  G02B6/29311 ,  G02B6/29313 ,  G02B6/29391 ,  G02B6/29395 ,  G02B6/29397 ,  G02B6/29398 ,  G02B6/32 ,  H04J14/02 ,  H04J14/0221

Abstract: For systems which disperse individual wavelength components of a DWDM beam into an array of converging beams, the individual wavelength signals are modified for blocking, equalization or other purposes by reflective liquid crystal cells. Thus modulated or modified components are then recombined by the system into an output beam, as by reverse passage through the system. Controlled full extinction or linear attenuation may be introduced by converging asymmetrical beams of separate polarization components for each wavelength into superposed relation on zero twist nematic crystal cells which are voltage controlled so as to retard for extinction of greater than 40 dB or to transform the state of polarization to a selected angle for attenuation. Polarization sensitive elements in the return paths of the reflected beams then filter the rejected components.

Abstract translation: 对于将DWDM光束的各个波长分量分散成会聚光束阵列的系统，通过反射型液晶单元修改各个波长信号用于阻挡，均衡或其他目的。 因此，经过系统的反向通过，调制或修改的组件然后由系统重新组合成输出光束。 控制的全消光或线性衰减可以通过将每个波长的分离的偏振分量的非对称光束会聚在零扭转向列型晶体单元上，将它们叠加在零扭转向列型晶体单元上，从而使其延迟消光大于40dB，或者使 极化到选定的角度进行衰减。 反射光束的返回路径中的偏振敏感元素然后过滤被拒绝的成分。

公开(公告)号：US06795181B2

公开(公告)日：2004-09-21

申请号：US10621648

申请日：2003-07-17

Applicant: Vanessa Mary Joy McCallum ,  Martin Kaselis ,  Hans Heinrich Egli

Inventor： Vanessa Mary Joy McCallum ,  Martin Kaselis ,  Hans Heinrich Egli

IPC: G01J328

CPC classification number: G01J3/4406 ,  G01J3/0275 ,  G01J3/0291 ,  G01J3/28

Abstract: A spectrometry instrument with exchangeable accessories (34, 48, 50, 52) providing, for example, different sample presentation facilities. The accessories include a manually operable cam-lock facility (54, 68) for quick and easy attachment of an accessory to the instrument. The instrument also includes an electrical circuit (86-90), which is completed by a circuit portion (100) in an accessory when the accessory is attached to the instrument, for generating a unique identifying voltage (94) to thereby identify that accessory. This allows for automatic loading in a controlling computer of programs for setting up and running the instrument for measurement regimes using that accessory. The spectrometry instrument is preferably a spectrophotometer used for phosphorescence decay measurements in which sequential phosphorescence emission measurements data from each of a number of excitation cycles applied to a sample are taken and then reassembled into a correct time sequence to define a phosphorescence decay characteristic for the sample, that is, measured data points from a second (and subsequent) excitation cycle are interleaved with those from a first excitation cycle. This significantly reduces the time for establishing a phosphorescence decay characteristic.

公开(公告)号：US06765670B2

公开(公告)日：2004-07-20

申请号：US09993661

申请日：2001-11-27

Applicant: Bengt-Erik Olsson ,  Magnus Karlsson ,  Henrik Sunnerud

Inventor： Bengt-Erik Olsson ,  Magnus Karlsson ,  Henrik Sunnerud

IPC: G01J328

CPC classification number: H04B10/07955 ,  G02B6/29302 ,  G02B6/29385 ,  H04B10/077

Abstract: The present invention relates to a spectrometer module comprising an input, for receiving an incoming optical signal, a variable differential group delay (DGD) element, for applying a variable birefringence retardation to said incoming optical signal, and a detector unit for detecting the power of a signal exiting said variable DGD element, having a defined state of polarization. It also relates to a monitor module, a monitoring unit and a monitoring system, comprising such a spectrometer module for use in monitoring an optical network. Further, the invention relates to a spectrometer device, for spectrometry purposes, comprising a spectrometer module as stated above.

Abstract translation: 本发明涉及一种光谱仪模块，包括用于接收输入光信号的输入，用于向所述输入光信号施加可变双折射延迟的可变差分群延迟（DGD）元件，以及检测器单元，用于检测 离开所述可变DGD元件的信号具有限定的极化状态。 它还涉及一种监视器模块，监测单元和监视系统，其包括用于监测光网络的这种光谱仪模块。此外，本发明涉及一种用于光谱测量目的的光谱仪装置，包括如上所述的光谱模块 。