公开(公告)号：US20030156287A1

公开(公告)日：2003-08-21

申请号：US10275119

申请日：2003-02-27

Inventor： Lun Kai Cheng

IPC: G01J003/28 ,  G01J003/02 ,  G01J004/00

CPC classification number: G01J3/02 ,  G01J3/0208 ,  G01J3/0264 ,  G01J3/0294 ,  G01J3/14 ,  G01J3/2803 ,  G01J9/00 ,  G01J2003/2866

Abstract: An optical wavelength analyser including: an entrance slit (4) for receiving a light beam (3) including signals with various wavelengths and passings the beam at least partly; a diffractor (6, 7, 9) for receiving the passed beam and diffracting the signals dependent on their wavelength; a detector (8) including adjacent detector elements (32, 33, 35, 36, 38, 39) for receiving the diffracted signals and generating their output signals; a processor (21) for determining the wavelengths from the output signals, in which the received light beam has a spatially uniform intensity; the diffractor diffracts each signal on a different detector element subset, consisting of at least a first element (32, 33, 35, 36, 38, 39) for receiving at least a first signal with a first signal level; the processor determines each signal's wavelength dependent on the first signal level and a calibration value.

Abstract translation: 一种光波长分析仪，包括：用于接收光束（3）的入射狭缝（4），其包括具有各种波长的信号并且至少部分地传递所述光束; 用于接收经过的光束并根据其波长衍射信号的衍射器（6,7,9）; 包括用于接收衍射信号并产生其输出信号的相邻检测器元件（32,33,35,36,38,39）的检测器（8）; 用于根据所述输出信号确定所述波长的处理器（21），其中所接收的光束具有空间上均匀的强度; 所述衍射器将不同的检测器元件子集上的每个信号衍射，所述检测器元件子集由至少第一元件（32,33,35,36,38,39）组成，用于至少接收具有第一信号电平的第一信号; 处理器根据第一信号电平和校准值确定每个信号的波长。

公开(公告)号：US20030053051A1

公开(公告)日：2003-03-20

申请号：US10208974

申请日：2002-07-30

Inventor： Kristin A. Blais

IPC: G01J003/28

CPC classification number: G01R33/02

Abstract: There is disclosed a method and apparatus for spectroscopically sensing a magnetic field emanating from an object that includes receiving a radiance emission from an object and dispersing the radiance emission into parts of the electromagnetic spectrum. The method also includes detecting a part of the electromagnetic spectrum identified with a selected gas and measuring the magnetic field from a part of the electromagnetic spectrum based on spectral spreading of a spectral line.

Abstract translation: 公开了一种用于光谱感测从物体发出的磁场的方法和装置，包括从物体接收辐射发射并将辐射发射分散到电磁光谱的一部分中。 该方法还包括检测由所选择的气体识别的电磁波谱的一部分，并且基于谱线的频谱扩展从电磁频谱的一部分测量磁场。

公开(公告)号：US20030016354A1

公开(公告)日：2003-01-23

申请号：US09907343

申请日：2001-07-17

Inventor： Rongqing Hui

IPC: G01J003/28

CPC classification number: G01J3/2803 ,  G01J3/26 ,  G01J3/28 ,  G01J3/32 ,  G02B2006/12195

Abstract: An Optical Domain Signal Analyzer, having an optical filter, a dispersive element and a detector is utilized to provide high resolution spectrum analysis over a wide optical bandwidth. The optical domain signal analyzer broadly includes an optical filter for providing wavelength samples of a received optical signal, a dispersive element for receiving the samples and dispersing the samples, and a detector for receiving the dispersed signal and for providing electrical signals representative of the dispersed sample. A preferred embodiment includes a processor for receiving the electrical signal and calculating the characteristics of the spectrum.

Abstract translation: 具有光学滤波器，色散元件和检测器的光域信号分析器被用于在宽的光学带宽上提供高分辨率的光谱分析。 光域信号分析仪广泛地包括用于提供接收的光信号的波长样本的光学滤波器，用于接收样本和分散样本的分散元件，以及用于接收分散信号并提供代表分散样品的电信号的检测器 。 优选实施例包括用于接收电信号并计算频谱的特性的处理器。

公开(公告)号：US20030011769A1

公开(公告)日：2003-01-16

申请号：US10187855

申请日：2002-07-03

Applicant: Arroyo Optics, Inc.

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

IPC: G01J003/28

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: Systems and methods for modifying, switching, rearranging or otherwise controlling the individual wavelength components of DWDM optical signals are described, which employ compact refolding and reshaping of these dimensionally patterned beams within a confined volume. The wavelength components of the beam are diffractively dispersed with high diffraction efficiency, and then reversely converged to beam waists incident on different ones of an array of control elements such as liquid crystal cells, MEMs and other spatial light modulators, or fixed distributed patterns. With reflective control elements the wavelength components may be reversely refolded along reciprocal paths with rediffraction, to form a reconstituted and revised DWDM output signal. If the control elements transmit at least one of the wavelength components, a separate, adjacent three dimensional beam refolding path, with rediffraction, is used to feed recombined signals to a separate output. High diffraction efficiency and minimal optical aberrations are achieved by employing a diffraction grating and opposed Mangin mirror system as the principal elements for beam refolding. The approach is useful in systems servicing narrow channel separations, and in a wide variety of applications including channel equalization, interleaving, channel blocking, and channel grouping.

Abstract translation: 描述了用于修改，切换，重新布置或以其他方式控制DWDM光信号的各个波长分量的系统和方法，其在限制体积内采用紧凑的重折叠和这些尺寸图案化的束的重新成形。 光束的波长分量以高衍射效率衍射分散，然后反向收敛到入射到诸如液晶单元，MEM和其它空间光调制器或固定分布图案的控制元件阵列上的不同阵列上的波束。 使用反射控制元件，波长分量可以沿着具有红移的互逆路径反向重折叠，以形成重构和修改的DWDM输出信号。 如果控制元件传输至少一个波长分量，则使用具有红移的单独的相邻三维光束重折叠路径将重新组合的信号馈送到单独的输出。 通过使用衍射光栅和相对的Mangin镜系统作为光束重折叠的主要元件，实现了高衍射效率和最小的光学像差。 该方法在服务于窄信道分离的系统中以及在各种应用中是有用的，包括信道均衡，交织，信道阻塞和信道分组。

公开(公告)号：US20020180966A1

公开(公告)日：2002-12-05

申请号：US09729876

申请日：2000-12-05

Inventor： Timothy Munks ,  Paul Dunn

IPC: G01J003/28

CPC classification number: G02B6/4215 ,  G01J3/2803 ,  G02B6/29361 ,  G02B6/29385 ,  H04J14/02

Abstract: A multi-channel wavelength monitor is described that includes a dispersive element that is positioned in an optical path of an incident optical beam having a plurality of wavelengths. The dispersive element disperses the optical beam into a plurality of optical beams that simultaneously propagate in a plurality of optical paths, where each of the plurality of optical beams has one of the plurality of wavelengths. An optical filter is positioned to intercept each of the plurality of optical paths at a plurality of locations. The optical filter substantially passes a respective one of the plurality of optical beams at a respective one of the plurality of locations and substantially blocks the other optical beams. A plurality of optical detectors is positioned adjacent to the optical filter in a direction of propagation of the plurality of optical beams. A respective one of the plurality of optical detectors is positioned in a respective one of the plurality of optical paths. Each of the plurality of detectors generates an electrical signal that is proportional to an intensity of a respective one of the plurality of optical beams.

Abstract translation: 描述了一种多通道波长监视器，其包括位于具有多个波长的入射光束的光路中的色散元件。 分散元件将光束分散成多个光束，其同时在多个光路中传播，其中多个光束中的每一个具有多个波长中的一个。 光学滤波器被定位成在多个位置处截取多个光路中的每一个。 滤光器基本上在多个位置中的相应一个处通过多个光束中的相应一个，并且基本上阻挡其它光束。 多个光学检测器位于与滤光器相邻的多个光束的传播方向上。 多个光学检测器中的相应一个位于多个光路中的相应一个光路中。 多个检测器中的每个检测器产生与多个光束中的相应光束的强度成比例的电信号。

公开(公告)号：US20020135763A1

公开(公告)日：2002-09-26

申请号：US10061966

申请日：2002-01-31

Inventor： Nicholas B. MacKinnon ,  Calum E. MacAulay ,  Ulrich Stange

IPC: G01J003/28

CPC classification number: H05B37/029 ,  A61N5/0616 ,  A61N5/062 ,  F21S10/02 ,  F21W2131/406 ,  G02B26/0841 ,  H05B37/02 ,  H05B41/3922

Abstract: Lighting systems comprising a spectrum former upstream from a reflective pixelated spatial light modulator (reflective SLM), the SLM reflecting substantially all of the light in the spectrum into at least two different light paths, that do not reflect back to the light source or the spectrum former. At least one of the light paths acts as a projection light path and transmits desired light out of the lighting system. The lighting systems provide virtually any desired color(s) and intensity(s) of light, and avoid overheating problems by deflecting unwanted light and other electromagnetic radiation out of the system or to a heat management system. The systems can be part of another system, a luminaire, or any other suitable light source. The systems can provide virtually any desired light, from the light seen at the break of morning to specialized light for treating cancer or psoriasis, and may change color and intensity at speeds that are perceptually instantaneous.

Abstract translation: 包括在反射像素空间光调制器（反射SLM）上游的光谱发生器的照明系统，SLM基本上将光谱中的所有光反射到至少两个不同的光路，其不反射回光源或光谱 前任的。 光路中的至少一个用作投影光路，并将期望的光发射出照明系统。 照明系统实际上提供任何所需的颜色和光强度，并且通过将不需要的光和其它电磁辐射偏离系统或热管理系统来避免过热问题。 这些系统可以是另一个系统，照明设备或任何其他合适的光源的一部分。 这些系统可以提供几乎任何所需的光，从早晨的休息时间看到的光到用于治疗癌症或牛皮癣的专用光，并且可以以感觉上即时的速度改变颜色和强度。

公开(公告)号：US20020126278A1

公开(公告)日：2002-09-12

申请号：US09796656

申请日：2001-03-02

Inventor： Michael Cohnitz Olshausen

IPC: G01J003/28

CPC classification number: G01J3/04 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/18

Abstract: A compact, grating spectrometer (1A) particularly adapted for visual observation of the sun's spectrum, from the Calcium K line to the Fraunhofer B line, at very high dispersion. The numerical aperture of the spectrometer's collimating mirror is intentionally mismatched to the numerical aperture of the spectrometer's light-input device in order to exploit, by means of the exceedingly narrow width of the spectrometer's entrance slit (110), the high degree of coherence of the central region of the Airy disk formed by the light-input device. The resulting Fraunhofer diffraction illuminates totally, or nearly totally, the collimating mirror throughout the K-B interval. The human eye's dynamic range is compensated to maintain resolution at the lowest, light levels of the K-B interval. UV spill is suppressed. Both input-optics and slit are shielded against differential heating.

Abstract translation: 特别适用于以非常高的色散从钙K线向弗劳恩霍夫B线观察太阳光谱的小型光栅光谱仪（1A）。 光谱仪的准直镜的数值孔径有意地与光谱仪的光输入装置的数值孔径不匹配，以便通过光谱仪的入口狭缝（110）的非常窄的宽度来利用光谱仪的入射狭缝（110）的高度的一致性 由光输入装置形成的艾里圆盘的中心区域。 所得到的弗劳恩霍夫衍射在整个K-B间隔期间完全或完全照射准直镜。 补偿人眼的动态范围，以将分辨率维持在K-B间隔的最低亮度水平。 紫外线泄漏被抑制。 输入光学和狭缝均可屏蔽差分加热。

公开(公告)号：US20020030814A1

公开(公告)日：2002-03-14

申请号：US09738863

申请日：2000-12-15

Inventor： Thomas L. Mikes ,  Lian-Qin Xiang

IPC: G01J003/28 ,  H04J014/02

CPC classification number: G02B6/3588 ,  G01J3/18 ,  G02B6/29308 ,  G02B6/2931 ,  G02B6/351 ,  G02B6/3538 ,  G02B6/356 ,  G02B6/4249

Abstract: An optical communication channel switch includes an aberration corrected spectrometer adapted for receiving plural channels of communication in a one dimensional array of sites where each site corresponds to a source, and a channel selector for selectively switching channels. After receiving the plural channels, the aberration corrected spectrometer provides the channels in a two dimensional array in which channels are distributed in rows (or columns) of similar frequency and different sources and in columns (or rows) of differing frequency and common sources. The channel selector selectively switches channels among sites in the two dimensional array and provides a single dimensional reconfigured array of frequency separated channels that is combined into the two dimensional array. Another aberration corrected spectrometer receives the selectively switched two dimensional array and combines the channels into a single dimensional array of sites having one or more frequency separated channels.

Abstract translation: 光通信通道开关包括像差校正光谱仪，其适于在每个位置对应于源的一维阵列阵列中接收多个通道，以及用于选择性地切换通道的通道选择器。 在接收到多个通道之后，像差校正光谱仪以通道以不同频率和不同频率和共同来源的列（或行）的行（或列）分布的二维阵列提供通道。 信道选择器选择性地在二维阵列中的站点之间切换信道，并提供组合成二维阵列的频率分离信道的单维重构阵列。 另一个像差校正光谱仪接收选择性切换的二维阵列，并将这些通道组合成具有一个或多个频率分离通道的位置的单维阵列。

公开(公告)号：US20010030745A1

公开(公告)日：2001-10-18

申请号：US09753673

申请日：2001-01-04

Applicant: EXFO Electro-Optical Engineering Inc.

Inventor： Gang He ,  Daniel Gariepy ,  Gregory Walter Schinn

IPC: G01J003/28

CPC classification number: G01J3/447 ,  G01J3/12

Abstract: An optical spectrum analyzer comprises a diffraction grating (DG), a polarization decomposing unit (PDM) for decomposing the input light beam into first and second light beams having mutually-perpendicular linear states of polarization, and two output ports (FP2/1, FP2/2) each for receiving from the grating, substantially exclusively, a respective one of the polarized light beams (LT, LR) after diffraction by the diffraction grating (DG). Each of the linearly-polarized light beams is directed onto the diffraction grating with its linear state of polarization at any prescribed angle to a corresponding plane of diffraction of the diffraction grating The arrangement is such that the state of polarization of the light beams, at any particular wavelength within an operating band of the analyzer remains substantially unchanged with respect to time, The analyzer also may have a reflector (RAM) for reflecting the light beams leaving the diffraction grating after diffraction a first time so as to return them to the diffraction grating for diffraction a second time.

Abstract translation: 光谱分析仪包括衍射光栅（DG），用于将输入光束分解成具有相互垂直的极化状态的第一和第二光束的偏振分解单元（PDM）和两个输出端口（FP2 / 1，FP2 / 2），每个用于在衍射光栅（DG）衍射之后从光栅接收基本上仅相应的一个偏振光束（LT，LR）。 每个线性偏振光束以与其衍射光栅的相应衍射平面成任意规定角度的线性极化状态被引导到衍射光栅上。这种布置使得光束的偏振状态 分析仪的工作频带内的特定波长相对于时间保持基本不变。分析仪还可以具有用于在衍射之后第一次反射离开衍射光栅的光束的反射器（RAM），以便将它们返回到衍射光栅 用于衍射第二次。

公开(公告)号：US20040239930A1

公开(公告)日：2004-12-02

申请号：US10482779

申请日：2004-07-26

Inventor： Shirou Sakai

IPC: G01J003/28

CPC classification number: G01J3/06 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0221 ,  G01J3/0235 ,  G01J3/0237 ,  G01J3/024 ,  G01J3/0264 ,  G01J3/0291 ,  G01J3/18 ,  G01J3/2803 ,  G01J3/36 ,  G01N21/645 ,  G01N2021/6417 ,  G01N2021/6421 ,  G01N2021/6423

Abstract: A spectroscopic system according to the present invention 10 comprises: an optical fiber bundle 12 whose emitting end 12a is arranged in a vertical direction; a slit 16 which is arranged so as to oppose the emitting end 12a of the optical fiber bundle 12; spectroscopic element arrangement means 20 which can switchably arrange either a first diffraction grating 23 in which grooves extending along the vertical direction are arranged in a horizontal direction at a predetermined groove density, or a second diffraction grating 24 in which grooves extending along the vertical direction are arranged in the horizontal direction at a groove density larger than that of the first diffraction grating 23, on an optical path of light which is emitted from the emitting end 12a of the optical fiber bundle 12 and passes through the slit 16; and a photomultiplier tube 30 in which a plurality of anodes 53 extending along the vertical direction are arranged in the horizontal direction.

Abstract translation: 根据本发明的光谱系统10包括：发光端12a沿垂直方向布置的光纤束12; 与光纤束12的发射端12a相对配置的狭缝16; 分光元件布置装置20，其可切换地布置沿着垂直方向延伸的凹槽的第一衍射光栅23以预定凹槽密度沿水平方向布置;或第二衍射光栅24，其中沿着垂直方向延伸的凹槽是 在从光纤束12的发射端12a发射并穿过狭缝16的光的光路上沿水平方向排列的沟槽密度大于第一衍射光栅23的沟槽密度; 以及沿着垂直方向延伸的多个阳极53在水平方向上布置的光电倍增管30。