公开(公告)号：US20040145739A1

公开(公告)日：2004-07-29

申请号：US10349898

申请日：2003-01-23

Inventor： Mark D. Hopler ,  Rong Liu

IPC: G01J003/18 ,  G01J003/12

CPC classification number: G01J3/18 ,  G01J3/021 ,  G01J3/12 ,  G01J3/14

Abstract: Inverting optics are used to invert, with respect to the dispersion plane, the wavefront of a monochromator employing a beam making more than one pass through the dispersing medium. Further, the inverting functionality can be turned-on or turned-off, thereby reversibly converting between additive and subtractive monochromator architectures. Inversion reversal is accomplished by rotating the inverting optics by 90 degrees coaxially with the beam, either back and forth or monotonically, or by translating portions or all of the inverting optics into and out of the beam. Examples of inverting optics include Dove prisms and equivalent multiple all-reflective surfaces. The system and method can be applied to two-pass and other multi-pass monochromators and to dual and other multiple serial monochromator configurations using diffraction gratings or other dispersing elements.

Abstract translation: 反相光学器件用于相对于色散平面反转单色仪的波前，其使用多于一个的光束通过分散介质。 此外，反相功能可以被打开或关闭，从而在加和减色单色器结构之间的可逆转换。 通过将反相光学器件与光束同时地前后旋转或单调地旋转90度来实现反转反转，或者通过将反射光学器件的部分或全部平移到和离开光束来实现。 反转光学器件的示例包括Dove棱镜和等效的多个全反射表面。 该系统和方法可以应用于使用衍射光栅或其他分散元件的双通等多色单色仪和双重和其他多个串行单色仪配置。

公开(公告)号：US20030081208A1

公开(公告)日：2003-05-01

申请号：US10285191

申请日：2002-10-31

Applicant: Ando Electric Co., Ltd.

Inventor： Tsutomu Kaneko ,  Toshikazu Yamamoto ,  Tohru Mori

IPC: G01J003/18

CPC classification number: G01J3/1804 ,  G01J3/12

Abstract: A monochromator including: a concave mirror which converts incident light into parallel light and emits the parallel light, a plane diffraction grating for diffracting the parallel light emitted from the concave mirror, first reflection means which reflects first light diffracted by the plane diffraction grating and causes the diffracted light to enter the plane diffraction grating as second incident light, second reflection means which reflects second diffracted light and causes the reflected light to enter the plane diffraction grating as third incident light, and an exit slit disposed in the vicinity of a focal point such that third diffracted light is reflected by the first reflection means, to thereby enter the plane diffraction grating as fourth incident light and such that fourth diffracted light is converged at the focal point by the concave mirror, to thereby enable extraction of light having a specific wavelength.

Abstract translation: 一种单色仪，包括：将入射光转换为平行光并发射平行光的凹面镜，用于衍射从凹面镜发射的平行光的平面衍射光栅，反射由平面衍射光栅衍射的第一光的第一反射装置， 作为第二入射光入射到平面衍射光栅的衍射光，反射第二衍射光并使反射光进入平面衍射光栅作为第三入射光的第二反射装置，以及设置在焦点附近的出射狭缝 使得第三衍射光被第一反射装置反射，从而作为第四入射光进入平面衍射光栅，并且使得第四衍射光在凹面镜下聚焦在焦点处，从而能够提取具有特定 波长。

公开(公告)号：US20030048442A1

公开(公告)日：2003-03-13

申请号：US09948278

申请日：2001-09-07

Inventor： Jian Ming Xiao

IPC: G01J003/18

CPC classification number: G01J3/04 ,  G01J3/0229 ,  G01J3/18

Abstract: A spectrograph with a first concave spectrographic diffraction grating is positioned to receive light from the input light source is configured to provide a diffracted light output dispersing the components of the input light source in a first direction. The dispersion forms the input light into an intermediate spectra. The intermediate spectra is formed in a focal surface by the once diffracted light. A slit is substantially positioned on the focal surface. A second concave diffraction grating is positioned to receive once diffracted light from the slit and configured to provide a twice diffracted light output, the second concave diffraction grating dispersing the components of the input light source in a second direction. The second direction is different from the first direction, the dispersion forming the input light into an output spectra.

Abstract translation: 具有第一凹面光谱衍射光栅的光谱仪被定位成接收来自输入光源的光被配置为提供将输入光源的部件沿第一方向分散的衍射光输出。 分散体将输入光形成中间光谱。 通过一次衍射光在中心光谱中形成中间光谱。 狭缝基本上位于焦点表面上。 定位第二凹入衍射光栅以接收来自狭缝的一次衍射光并且被配置为提供两次衍射光输出，第二凹入衍射光栅将输入光源的分量沿第二方向分散。 第二方向不同于第一方向，将输入光的色散形成输出光谱。

公开(公告)号：US20030137660A1

公开(公告)日：2003-07-24

申请号：US10293897

申请日：2002-11-12

Inventor： Olav Solgaard ,  Jonathan P. Heritage ,  Amal R. Bhattarai

IPC: G01J003/08 ,  G01J003/18

CPC classification number: H04Q11/0005 ,  G01J3/28 ,  G02B6/32 ,  G02B6/35 ,  G02B6/3512 ,  G02B6/3516 ,  G02B6/3518 ,  G02B6/3534 ,  G02B6/3542 ,  G02B6/3546 ,  G02B6/3556 ,  G02B6/356 ,  G02B6/3566 ,  G02B6/357 ,  G02B6/3582 ,  G02B6/3584 ,  G02B6/3592 ,  H04Q2011/0024 ,  H04Q2011/0026 ,  H04Q2011/0083

Abstract: A cross-connect switch for fiber-optic communication networks employing a wavelength dispersive element, such as a grating, and a stack of regular (non-wavelength selective) cross bar switches using two-dimensional arrays of micromachined, electrically actuated, individually-tiltable, controlled deflection micro-mirrors for providing multiport switching capability for a plurality of wavelengths. Using a one-dimensional micromirror array, a fiber-optic based MEMS switched spectrometer that does not require mechanical motion of bulk components or large diode arrays can be constructed with readout capability for WDM network diagnosis or for general purpose spectroscopic applications.

公开(公告)号：US20030053052A1

公开(公告)日：2003-03-20

申请号：US09957696

申请日：2001-09-19

Inventor： David M. Braun ,  Paul Emerson Bussard ,  Roger L. Jungerman ,  Benjamin S. Wheeler

IPC: G01J003/18

CPC classification number: G01J3/18 ,  G01J3/0208 ,  G01J3/021

Abstract: An optical filter for generating a filter output signal from a filter input signal, the filter output signal consisting of light from the filter input signal in a predetermined bandwidth. The filter includes a grating, a first optical assembly and an optical signal path. A portion of the input signal traverses the optical signal path such that it is diffracted from the grating to form a first intermediate beam that is input to the first optical assembly, which generates a second intermediate beam therefrom. The second intermediate beam is directed back to the grating and is diffracted by the grating, a portion of the diffracted second intermediate beam forming a portion of the filter output signal. The second intermediate beam is the inverted image of the first intermediate beam, and hence, the second reflection from the grating compensates for the time dispersion introduced by the first reflection from the grating.

公开(公告)号：US20020176077A1

公开(公告)日：2002-11-28

申请号：US10153514

申请日：2002-05-22

Inventor： Alberto Caruso ,  Andrea Romoli ,  Matteo Taccola

IPC: G01J003/14 ,  G01J003/18

CPC classification number: G01J3/36 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/14 ,  G01J3/2823

Abstract: The spectrometer comprises at least a first optical path for a beam of electromagnetic radiation, along which the following are set: a beam-entry slit (1) for an incoming beam; a collimator (5) comprising a convergent spherical mirror for collimation of the incoming beam; a first dispersor (9) for dispersion of the beam into its chromatic components; a first focusing system (19); and a first detector (21) which receives the beam dispersed and focused by said first focusing system. Set along the first optical path there is set at least one first aspherical corrector element (7; 17) comprising an aspherical mirror for correction of spherical aberration.

Abstract translation: 光谱仪至少包括用于电磁辐射束的第一光路，沿着该第一光路设置以下部分：入射光束的光束入口狭缝（1） 准直器（5），包括用于准直入射光束的会聚球面镜; 用于将光束分散到其有色成分中的第一分散器（9）; 第一聚焦系统（19）; 以及接收由所述第一聚焦系统分散和聚焦的光束的第一检测器（21）。 沿着第一光路设置至少一个包括用于校正球面像差的非球面镜的第一非球面校正元件（7; 17）。

公开(公告)号：US20020060792A1

公开(公告)日：2002-05-23

申请号：US09907874

申请日：2001-07-13

Applicant: ADC Inc.

Inventor： Per Eld Ibsen ,  Bjarke Rose ,  Michael Rasmussen

IPC: G01J003/18

CPC classification number: G02B6/12007 ,  G01J3/02 ,  G01J3/0256 ,  G01J3/0259 ,  G01J3/0262 ,  G01J3/0294 ,  G01J3/18 ,  G01J3/2803

Abstract: An apparatus monitors spectral information of an optical transmission system. The apparatus comprises a monolithic spectrometer and at least one transmission signal detector for producing output signals of separated transmission signal components and optical noise.

Abstract translation: 一种装置监视光传输系统的光谱信息。 该装置包括单片光谱仪和至少一个传输信号检测器，用于产生分离的传输信号分量和光噪声的输出信号。

公开(公告)号：US20030142308A1

公开(公告)日：2003-07-31

申请号：US10345672

申请日：2003-01-16

Inventor： Manabu Kojima ,  Takeshi Ono

IPC: G01J003/18

CPC classification number: G01J3/02 ,  G01J3/021 ,  G01J3/18

Abstract: In order to provide a multi-path monochromator capable of reducing the size of optical parts with a high resolution and a wide dynamic range, the multi-path monochromator has a lens 2 used as a first collimator for converting an incident light into a parallel light, a diffraction grating 4 for diffracting an output light outputted from the lens 2, plane mirrors 3 and 5 for reflecting a diffraction light diffracted by the diffraction grating 4 to return the diffraction light back to a same path, a parabolic mirror 7 used as a second collimator for collecting a diffraction light which is again diffracted by the diffraction grating into which a reflected light is again outputted from the plane mirror, and an output slit positioned at a focal position of the parabolic mirror 7. The parabolic mirror 7 used as the second collimator has a focal length which is longer than a focal length of the lens used as the first collimator.

Abstract translation: 为了提供能够以高分辨率和宽动态范围减小光学部件的尺寸的多路单色仪，多路单色仪具有用作第一准直器的透镜2，用于将入射光转换成平行光 用于衍射从透镜2输出的输出光的衍射光栅4，用于反射由衍射光栅4衍射的衍射光的平面镜3和5，以将衍射光返回到相同的路径，抛物面镜7用作 用于收集由衍射光栅再次衍射的衍射光的第二准直器，其中从平面镜再次输出反射光，以及位于抛物面镜7的焦点位置的输出狭缝。抛物面镜7用作 第二准直仪具有比用作第一准直仪的透镜的焦距长的焦距。

公开(公告)号：US20030112433A1

公开(公告)日：2003-06-19

申请号：US10066092

申请日：2002-01-31

Inventor： Ji-Wook Youn ,  Kwang-Joon Kim

IPC: G01J003/18

CPC classification number: H04B10/07953 ,  G01J3/18 ,  G01J3/2803 ,  G02B6/2706 ,  G02B6/2766 ,  G02B6/2793 ,  G02B6/2931 ,  G02B6/29385 ,  G02B6/4215 ,  H04B10/077 ,  H04B10/07955 ,  H04B10/07957

Abstract: An optical signal performance monitoring apparatus in a multi-channel optical transmission system and a method for monitoring the optical signal performance are provided. To achieve the above objective, the optical signal performance monitoring apparatus in the multi-channel optical transmission system includes; an optical input unit for controlling the spot size of an inputted multi-channel optical signal and generating the 1st multi-channel beam; an optical collimation and focusing unit for collimating the 1st multi-channel beam and focusing the 2nd multi-channel beam which is divided by wavelength; a diffraction and reflection unit for diffracting and reflecting the 1st collimated multi-channel beam, and generating the 2nd multi-channel beam which is divided by wavelength and is in parallel with the 1st collimated multi-channel beam; an optical detection unit for measuring the intensity of the 2nd multi-channel beam by wavelength, which is focused by wavelength by the optical collimation and focusing unit. The optical signal performance monitoring apparatus can measure the intensity, the a wavelength and the optical signal-to-noise ratio of the multi-channel optical signal by channel simultaneously in real time. In addition, since the optical signal performance monitoring can minimize the impact caused by an aberration and maintain the same f-number in the optical system, a high resolving power and a high dynamic range are guaranteed.

Abstract translation: 提供了一种多通道光传输系统中的光信号性能监视装置和用于监视光信号性能的方法。 为了实现上述目的，多通道光传输系统中的光信号性能监视装置包括： 光输入单元，用于控制输入的多通道光信号的光斑尺寸并产生第一多通道光束; 用于准直第一多声道光束并聚焦被波长分割的第二多声道光束的光学准直和聚焦单元; 用于衍射和反射第一准直多通道光束的衍射和反射单元，并且产生由波长分割并与第一准直多通道光束并联的第二多通道光束; 光学检测单元，用于通过光学准直和聚焦单元测量由波长聚焦的波长的第二多通道光束的强度。 光信号性能监测装置可以实时同步测量多通道光信号的强度，波长和光信噪比。 此外，由于光信号性能监视可以最小化由像差引起的影响并且在光学系统中保持相同的f数，因此保证了高分辨率和高动态范围。

公开(公告)号：US20030007148A1

公开(公告)日：2003-01-09

申请号：US10159370

申请日：2002-05-31

Inventor： John Moon ,  Ralph Jones ,  Charles Winston ,  James Sirkis ,  David Fournier ,  Joseph Pinto ,  Robert Brucato ,  James Dunphy ,  Christopher Chestnut

IPC: G01J003/28 ,  G01J003/18

CPC classification number: G01J3/28 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0256 ,  G01J3/0291 ,  G01J3/06 ,  G01J3/32 ,  G01J3/36 ,  G01J2003/064 ,  G01J2003/1819 ,  G02B6/2706 ,  G02B6/2793 ,  G02B6/2931 ,  G02B6/29313 ,  G02B6/29314 ,  G02B6/29385 ,  G02B6/29398 ,  G02B6/3512 ,  G02B6/359 ,  G02B6/4215 ,  G02B6/4246 ,  H04B10/077 ,  H04B10/07955 ,  H04Q2011/0026 ,  H04Q2011/0049 ,  H04Q2011/0083

Abstract: An optical channel monitor is provided that sequentially or selectively filters an optical channel(s) 11 of light from a (WDM) optical input signal 12 and senses predetermined parameters of the each filtered optical signal (e.g., channel power, channel presence, signal-noise-ratio). The OCM 10 is a free-space optical device that includes a collimator assembly 15, a diffraction grating 20 and a mirror 22. A launch pigtail emits into free space the input signal through the collimator assembly 15 and onto the diffraction grating 20, which separates spatially each of the optical channels 11 of the collimated light, and reflects the separated channels of light onto the mirror 22. A null/4 plate 26 is disposed between the mirror 22 and the diffraction grating 20. The mirror reflects the separated light back through the null/4 plate 26 to the diffraction grating 20, which reflects the channels of light back through the collimating lens 18. The lens 18 focuses each separated channel of light (null1-nullN) at a different focal point in space. One of the optical channels 11 is focused onto a receive pigtail 28, which then propagates to a photodetector 30. A pivoting mechanism 34 pivots the diffraction grating 20 or mirror 22 about a pivot point 36 to sequentially or selectively focus each optical channel 11 to the receive pigtail 28. A position sensor 42 detects the displacement of the diffraction grating 24 or mirror.

Abstract translation: 提供了一种光通道监视器，其顺序地或选择性地对来自（WDM）光输入信号12的光的通道11进行滤波，并且感测每个滤波的光信号的预定参数（例如，信道功率，信道存在， 噪声比）。 OCM 10是包括准直器组件15，衍射光栅20和反射镜22的自由空间光学装置。发射尾纤通过准直器组件15和衍射光栅20将衍射光栅20发射到自由空间中，输入信号分离 准直光的每个光通道11，并将分离的光通道反射到反射镜22上。在反射镜22和衍射光栅20之间设置有羔羊/ 4板26。反射镜将分离的光反射回 骰子/ 4板26到衍射光栅20，其反射通过准直透镜18的光通道。透镜18将每个分离的光通道（lambd1-lambdN）聚焦在空间中的不同焦点处。 光通道11中的一个被聚焦到接收引线28上，接收引线28然后传播到光电检测器30.枢转机构34围绕枢转点36枢转衍射光栅20或反射镜22，以顺序地或选择性地将每个光通道11聚焦到 接收尾纤28.位置传感器42检测衍射光栅24或反射镜的位移。