公开(公告)号：US06711327B2

公开(公告)日：2004-03-23

申请号：US10027183

申请日：2001-12-20

Applicant: Turan Erdogan ,  David B. Stegall

Inventor： Turan Erdogan ,  David B. Stegall

IPC: G02B634

CPC classification number: G02B6/29317 ,  G02B6/02085 ,  G02B6/02095 ,  G02B6/02366 ,  G02B6/29319 ,  G02B6/29394 ,  H04B10/2519

Abstract: A device and method for compensating for chromatic dispersion in an optical signal. The optical signal is coupled between an optical waveguide of a type having (i) a fundamental-mode waveguide and (ii) a higher-order mode waveguide surrounding the fundamental-mode waveguide, wherein different effective indexes of refraction are associated with the fundamental-mode and higher-order mode waveguides. The device comprises a transmissive, long-period optical grating disposed along a length of the optical waveguide and has a receiving end and a transmitting end. The grating is chirped between the ends along a light conducting axis of the optical waveguide such that different wavelengths of the optical signal are coupled to the fundamental-mode and higher order mode waveguides at different points along the length of the grating so that chromatic dispersion is corrected at the transmitting end.

Abstract translation: 一种用于补偿光信号中色散的装置和方法。 光信号耦合在具有（i）基本波导波导和（ii）围绕基波导波导的高阶模式波导的类型的光波导之间，其中不同的有效折射率与基波导波导相关联， 模式和高阶模式波导。 该器件包括沿着光波导的长度设置的透射式长周期光栅，并具有接收端和发射端。 光栅在端部之间沿着光波导的光导轴线被啁啾，使得光信号的不同波长耦合到沿着光栅长度的不同点处的基模和高阶模波导，使得色散为 在发送端修正。

公开(公告)号：US06376830B1

公开(公告)日：2002-04-23

申请号：US09606120

申请日：2000-06-15

Applicant: Mark E. Froggatt ,  Turan Erdogan

Inventor： Mark E. Froggatt ,  Turan Erdogan

IPC: G01C1964

CPC classification number: G01M11/3172 ,  G01M11/3145 ,  G01M11/3181

Abstract: A method/system are provided for measuring the N×N scalar transfer function elements for an N-port guided wave device. Optical energy of a selected wavelength is generated at a source and directed along N reference optical paths having N reference path lengths. Each reference optical path terminates in one of N detectors such that N reference signals are produced at the N detectors. The reference signals are indicative of amplitude, phase and frequency of the optical energy carried along the N reference optical paths. The optical energy from the source is also directed to the N-ports of the guided wave device and then on to each of the N detectors such that N measurement optical paths are defined between the source and each of the N detectors. A portion of the optical energy is modified in terms of at least one of the amplitude and phase to produce N modified signals at each of the N detectors. At each of the N detectors, each of the N modified signals is combined with a corresponding one of the N reference signals to produce corresponding N combined signals at each of the N detectors. A total of N2 measurement signals are generated by the N detectors. Each of the N2 measurement signals is sampled at a wave number increment &Dgr;k so that N2 sampled signals are produced. The N×N transfer function elements are generated using the N2 sampled signals. Reference and measurement path length constraints are defined such that the N combined signals at each of the N detectors are spatially separated from one another in the time domain.

Abstract translation: 提供了一种用于测量N端口导波装置的N×N标量传递函数单元的方法/系统。 所选波长的光能量在源处产生并沿着具有N个参考路径长度的N个参考光路引导。 每个参考光路终止于N个检测器中的一个，使得N个检测器产生N个参考信号。 参考信号指示沿着N个参考光路携带的光能的幅度，相位和频率。 来自源极的光能还被引导到导波装置的N端口，然后被引导到N个检测器中的每一个，使得N个测量光路被定义在源和每个N个检测器之间。 根据幅度和相位中的至少一个来修改光能的一部分以在N个检测器中的每一个处产生N个修正的信号。 在每个N个检测器中，N个修正信号中的每一个与N个参考信号中的相应一个组合，以在N个检测器中的每一个处产生相应的N个组合信号。 共有N2个测量信号由N个检测器产生。 每个N2测量信号以波数增量DELTAk采样，从而产生N2个采样信号。 使用N 2个采样信号生成N×N传递函数元素。 定义参考和测量路径长度约束，使得N个检测器中的每一个处的N个组合信号在时域中彼此空间上分离。

公开(公告)号：US06211957B1

公开(公告)日：2001-04-03

申请号：US09517865

申请日：2000-03-03

Applicant: Turan Erdogan ,  Thomas Andrew Strasser ,  Paul Stephen Westbrook

Inventor： Turan Erdogan ,  Thomas Andrew Strasser ,  Paul Stephen Westbrook

IPC: G01J400

CPC classification number: G02B6/2706 ,  G01J4/04 ,  G01N21/21 ,  G02B6/2766 ,  G02B6/29319 ,  G02B6/4215

Abstract: An in-line optical fiber polarimeter comprises a plurality of fiber gratings and a single wave plate, disposed sequentially along a length of optical fiber. The fiber gratings are precisely oriented and have a predetermined grating period such that each grating functions to out-couple a predetermined portion of the optical signal passing through the polarimeter. A separate detector is associated with each grating to measure the out-coupled signal. The four Stokes parameters can be determined from the set of measurements and then used to determine to state of polarization of an optical signal passing through the polarimeter.

Abstract translation: 一种在线光纤偏振计包括沿光纤长度依次设置的多个光纤光栅和单波片。 光纤光栅被精确定向并且具有预定的光栅周期，使得每个光栅用于将耦合通过偏振计的光信号的预定部分。 单独的检测器与每个光栅相关联以测量输出耦合信号。 可以从该组测量中确定四个斯托克斯参数，然后用于确定通过偏振计的光信号的偏振状态。

公开(公告)号：US5550654A

公开(公告)日：1996-08-27

申请号：US402803

申请日：1995-03-13

Applicant: Turan Erdogan ,  Victor Mizrahi

Inventor： Turan Erdogan ,  Victor Mizrahi

IPC: G02F1/35 ,  G02B6/02 ,  G02B6/124 ,  G03H1/02

CPC classification number: G02B6/02109 ,  G02B6/124

Abstract: A method is described for selectively modifying the refractive index of an optically transmissive body having an optical propagation axis. According to this method, polarized, actinic radiation is impinged on at least a portion of the body. In contrast to methods of the prior art, the actinic radiation is at least 60% polarized with a polarization direction parallel to a plane containing the propagation axis.

Abstract translation: 描述了一种用于选择性地修改具有光学传播轴的光学透射体的折射率的方法。 根据该方法，极化的光化辐射照射在身体的至少一部分上。 与现有技术的方法相反，光化辐射与平行于包含传播轴的平面的偏振方向极化至少60％。

公开(公告)号：US20140049630A1

公开(公告)日：2014-02-20

申请号：US13585886

申请日：2012-08-15

Applicant: Turan Erdogan ,  Prashant Prabhat ,  Ligang Wang

Inventor： Turan Erdogan ,  Prashant Prabhat ,  Ligang Wang

IPC: H04N7/18 ,  G02B27/14

CPC classification number: G02B27/1013 ,  G02B5/26 ,  G02B5/285 ,  G02B27/141

Abstract: An optical image splitter disposed in the path of image-bearing light along an optical axis has a coated dichroic surface disposed at an angle of 15 degrees or less relative to incident light along the optical axis. The coated dichroic surface has a number of layers of material, the of layers including layers having a first refractive index, nL, and layers having a second refractive index, nH, greater than the first refractive index. The coated surface transmits light of at least a first wavelength range to form a first image at an image plane and reflects light of a second wavelength range to form a second image at the image plane.

Abstract translation: 沿着光轴设置在图像承载光的路径中的光学分离器具有相对于沿着光轴的入射光以15度或更小的角度设置的涂覆的二向色表面。 涂覆的二向色表面具有多层材料，这些层包括具有第一折射率nL的层和具有大于第一折射率的第二折射率n H的层。 涂覆表面透射至少第一波长范围的光，以在图像平面处形成第一图像，并且反射第二波长范围的光，以在图像平面上形成第二图像。

公开(公告)号：US08300313B2

公开(公告)日：2012-10-30

申请号：US13097392

申请日：2011-04-29

Applicant: Atul Pradhan ,  Jay Anzellotti ,  Joseph T. Foss ,  Ligang Wang ,  Turan Erdogan

Inventor： Atul Pradhan ,  Jay Anzellotti ,  Joseph T. Foss ,  Ligang Wang ,  Turan Erdogan

IPC: G02B5/28

CPC classification number: G02B5/283 ,  G01J3/10 ,  G01J3/4406 ,  G01J2003/1213 ,  G01N2021/6471

Abstract: In accordance with the invention, a filter is fabricated to take into account the effect of absorption by filter material. The method is exemplified by the fabricating of an ultraviolet light transmission filter for transmitting a band within the range 230-320 nanometers. The resulting filter comprises plurality of hard-coating, thin-film layers of alternating high and low index of refraction. The improved filter provides high transmission, sharp edge slopes, and deep and extended out-of-band blocking. As compared with currently available filters, the filter provides transmission up to three or more times greater, edge slopes up to four times sharper, and deep extended out-of-band blocking extending further, even through the visible range.

Abstract translation: 根据本发明，制造过滤器以考虑由过滤材料吸收的影响。 该方法的例子是制造用于传输在230-320纳米范围内的波段的紫外光透射滤波器。 所得到的过滤器包括交替的高折射率和低折射率的多个硬涂层薄膜层。 改进的滤波器提供高传输，尖锐的边缘斜率，以及深度和扩展的带外阻塞。 与目前可用的滤波器相比，滤波器提供的传输最多三倍或更多倍，边缘斜率高达四倍，并且深度延伸的带外阻挡进一步延伸，甚至在可见光范围内。

公开(公告)号：US08059327B1

公开(公告)日：2011-11-15

申请号：US12770160

申请日：2010-04-29

Applicant: Turan Erdogan ,  Robert James Beeson

Inventor： Turan Erdogan ,  Robert James Beeson

IPC: G02B26/00

CPC classification number: G02B26/007

Abstract: A variable spectral filter apparatus has a filter support rotatable about a single axis of rotation and has at least first and second transmissive spectral filters, each spectral filter having a filter width defined by its first and second edges, wherein the filter width is orthogonal to the axis. The first edges of the filters are equidistant from the axis of rotation when the filter support is rotated to any angle. The plane of each of the spectral filters is parallel to the axis. Rotational positions of the filter support about the axis of rotation, over a first 60 degree range of angles, define, between the first and second edges of at least the first spectral filter, an undeviated filtered light path of at least half the filter width that extends orthogonally with respect to the axis. A rotational actuator is energizable to rotate the filter support about the axis.

Abstract translation: 可变光谱滤波器装置具有可围绕单个旋转轴线旋转的滤光器支架，并且具有至少第一和第二透射光谱滤光器，每个光谱滤光器具有由其第一和第二边缘限定的滤光器宽度，其中滤光片宽度与 轴。 当过滤器支撑件旋转到任何角度时，过滤器的第一边缘与旋转轴线等距。 每个频谱滤波器的平面平行于轴。 过滤器支撑件围绕旋转轴线的旋转位置在第一60度的角度范围内限定至少第一光谱滤光器的第一和第二边缘之间的至少一半的过滤器宽度的未经过滤的光路， 相对于轴正交延伸。 旋转致动器可激励以围绕轴线旋转过滤器支撑件。

公开(公告)号：US20110267678A1

公开(公告)日：2011-11-03

申请号：US12770160

申请日：2010-04-29

Applicant: Turan Erdogan ,  Robert James Beeson

Inventor： Turan Erdogan ,  Robert James Beeson

IPC: G02B26/00 ,  G02B5/22

CPC classification number: G02B26/007

Abstract: A variable spectral filter apparatus has a filter support rotatable about a single axis of rotation and has at least first and second transmissive spectral filters, each spectral filter having a filter width defined by its first and second edges, wherein the filter width is orthogonal to the axis. The first edges of the filters are equidistant from the axis of rotation when the filter support is rotated to any angle. The plane of each of the spectral filters is parallel to the axis. Rotational positions of the filter support about the axis of rotation, over a first 60 degree range of angles, define, between the first and second edges of at least the first spectral filter, an undeviated filtered light path of at least half the filter width that extends orthogonally with respect to the axis. A rotational actuator is energizable to rotate the filter support about the axis.

Abstract translation: 可变光谱滤波器装置具有可围绕单个旋转轴线旋转的滤光器支架，并且具有至少第一和第二透射光谱滤光器，每个光谱滤光器具有由其第一和第二边缘限定的滤光器宽度，其中滤光片宽度与 轴。 当过滤器支撑件旋转到任何角度时，过滤器的第一边缘与旋转轴线等距。 每个频谱滤波器的平面平行于轴。 过滤器支撑件围绕旋转轴线的旋转位置在第一60度角度范围内限定至少第一光谱滤光器的第一和第二边缘之间的至少一半的过滤器宽度的未变形的滤光光路， 相对于轴正交延伸。 旋转致动器可激励以围绕轴线旋转过滤器支撑件。

公开(公告)号：US20110216399A1

公开(公告)日：2011-09-08

申请号：US13097392

申请日：2011-04-29

Applicant: Atul Pradhan ,  Jay Anzellotti ,  Joseph T. Foss ,  Ligang Wang ,  Turan Erdogan

Inventor： Atul Pradhan ,  Jay Anzellotti ,  Joseph T. Foss ,  Ligang Wang ,  Turan Erdogan

IPC: G02B5/20 ,  G06F17/00

CPC classification number: G02B5/283 ,  G01J3/10 ,  G01J3/4406 ,  G01J2003/1213 ,  G01N2021/6471

Abstract: In accordance with the invention, a filter is fabricated to take into account the effect of absorption by filter material. The method is exemplified by the fabricating of an ultraviolet light transmission filter for transmitting a band within the range 230-320 nanometers. The resulting filter comprises plurality of hard-coating, thin-film layers of alternating high and low index of refraction. The improved filter provides high transmission, sharp edge slopes, and deep and extended out-of-band blocking. As compared with currently available filters, the filter provides transmission up to three or more times greater, edge slopes up to four times sharper, and deep extended out-of-band blocking extending further, even through the visible range.

Abstract translation: 根据本发明，制造过滤器以考虑由过滤材料吸收的影响。 该方法的例子是制造用于传输在230-320纳米范围内的波段的紫外光透射滤波器。 所得到的过滤器包括交替的高折射率和低折射率的多个硬涂层薄膜层。 改进的滤波器提供高传输，尖锐的边缘斜率，以及深度和扩展的带外阻塞。 与目前可用的滤波器相比，滤波器提供的传输最多三倍或更多倍，边缘斜率高达四倍，并且深度延伸的带外阻挡进一步延伸，甚至在可见光范围内。

公开(公告)号：US20110089338A1

公开(公告)日：2011-04-21

申请号：US12839040

申请日：2010-07-19

Applicant: Craig Hodgson ,  Turan Erdogan ,  Ligang Wang

Inventor： Craig Hodgson ,  Turan Erdogan ,  Ligang Wang

IPC: G01J1/58 ,  G02B5/28

CPC classification number: G02B5/285 ,  G02B2207/114

Abstract: An optical filter is provided which includes a plurality of hard coating layers of alternating high and low refractive index provided on a substrate and has an associated first transmission band. The filter also includes at least one additional plurality of hard coating layers including high and low refractive index layers and Herpin equivalent layers sandwiched therebetween. The additional plurality of layers has an associated second transmission band that substantially coincides with the first transmission band, but provides additional blocking at wavelengths outside the first transmission band. Relatively wide transmission bands and high blocking over an extended range of wavelengths can be achieved such that the filter is suitable for use in multiphoton fluorescence systems.

Abstract translation: 提供了一种滤光器，其包括设置在基板上的具有交替的高折射率和低折射率的多个硬涂层，并且具有相关联的第一传输带。 过滤器还包括至少一个附加的多个硬涂层，包括高折射率层和低折射率层以及夹在其间的Herpin等效层。 附加的多个层具有与第一传输频带基本一致的相关联的第二传输频带，但在第一传输频带外的波长处提供附加的阻塞。 可以实现相对宽的传输带和在扩展的波长范围上的高阻挡，使得滤波器适用于多光子荧光系统。