公开(公告)号：US06292297B1

公开(公告)日：2001-09-18

申请号：US09043064

申请日：1998-05-11

申请人： Yochay Danziger ,  Erez Hasman ,  Asher Friesem

发明人： Yochay Danziger ,  Erez Hasman ,  Asher Friesem

IPC分类号： G02B518

CPC分类号： G02B5/1876

摘要： A multilevel diffractive optical element comprising a base and a plurality of phase zones having phase levels of a substantially identical height h, each phase zone being defined by a local modulation depth d and a local number of phase levels &xgr;=d/h, the local number of phase levels &xgr; per phase zone being a real number, an integer of which defines the number of complete levels in the phase zone, which complete levels have identical widths, and a fraction of which, in at least one phase zone, defines an incomplete level which is narrower than the complete levels, said local number of phase levels &xgr;=&xgr;(x, y) varying among different phase zones so as to provide corresponding variation of said local modulation depth d=d(x, y) whereby local diffraction efficiencies and consequently an overall diffraction efficiency of the optical element is arbitrarily controlled.

公开(公告)号：US06369948B2

公开(公告)日：2002-04-09

申请号：US09801808

申请日：2001-03-09

申请人： Yochay Danziger ,  Erez Hasman ,  Asher Friesem

发明人： Yochay Danziger ,  Erez Hasman ,  Asher Friesem

IPC分类号： G02B518

CPC分类号： G02B5/1876

摘要： A multilevel diffractive optical element comprising a base and a plurality of phase zones having phase levels of a substantially identical height h, each phase zone being defined by a local modulation depth d and a local number of phase levels &xgr;=d/h, the local number of phase levels &xgr; per phase zone being a real number, an integer of which defines the number of complete levels in the phase zone, which complete levels have identical widths, and a fraction of which, in at least one phase zone, defines an incomplete level which is narrower than the complete levels, said local number of phase levels &xgr;=&xgr;(x, y) varying among different phase zones so as to provide corresponding variation of said local modulation depth d=d(x, y) whereby local diffraction efficiencies and consequently an overall diffraction efficiency of the optical element is arbitrarily controlled.

摘要翻译： 一种多级衍射光学元件，包括基极和具有基本相同高度h的相位电平的多个相位区域，每个相位区域由局部调制深度d和本地相位级数xgr = d / h定义， 本地相位级数xgr 每个相位区域是实数，其整数定义了相位区域中的完整水平的数量，其完整水平具有相同的宽度，并且其一部分在至少一个相位区域中限定较窄的不完整水平 表示本地数量的相位水平＆xgr; =＆xgr（x，y）在不同相位区域之间变化，以便提供所述局部调制深度d = d（x，y）的相应变化，由此局部衍射效率和 因此光学元件的总体衍射效率是任意控制的。

公开(公告)号：US06172778B2

公开(公告)日：2001-01-09

申请号：US09355407

申请日：1999-07-27

申请人： Silviu Reinhorn ,  Asher Friesem ,  Yaakov Amitai ,  Shachar Gorodeisky

发明人： Silviu Reinhorn ,  Asher Friesem ,  Yaakov Amitai ,  Shachar Gorodeisky

IPC分类号： G02B532

CPC分类号： G02B5/32 ,  G02B5/188 ,  G02B6/3546 ,  G02B6/3598 ,  G02F1/313

摘要： A planar optical crossbar switch comprising two thin planar substrates, on each of which are recorded or attached two holographic lenses between which light propagates by means of total internal reflection. The first lens is a negative cylindrical lens, used to input the incident light signal to the substrate, and the second lens is a positive cylindrical lens. The two substrates are disposed at right angles to each other in such a way that the positive lenses are positioned one on top of the other with a spatial light modulator sandwiched between them or beneath them. A linear array of detectors collects the output signal from the negative lens on the second substrate. Light from an element in the linear array of sources is spread out, by means of the negative cylindrical holographic lens on the first substrate, across a row of the SLM, and light from a column of the SLM is focused by means of the cylindrical holographic lenses on the second substrate, onto a particular element of the linear array of output detectors. To connect a signal form the ith source in the input array to the jth detector in the output array, the value of the {i,j} pixel of the SLM matrix should be in the ON state.

摘要翻译： 一种平面光学交叉开关，包括两个薄的平面基板，每个基板都记录或连接两个全息透镜，光在其间通过全内反射传播。 第一透镜是负圆柱透镜，用于将入射光信号输入到基板，第二透镜是正柱面透镜。 两个基板以彼此成直角的方式设置，使得正透镜以夹在它们之间或其下方的空间光调制器一个位于另一个的顶部。 检测器的线性阵列从第二基板上的负透镜收集输出信号。 来自线性阵列源中的元件的光通过第一衬底上的负圆筒形全息透镜穿过SLM的一行展开，并且来自SLM的列的光通过圆柱形全息图聚焦 在第二基板上的透镜，到输出检测器的线性阵列的特定元件上。 要将信号从输入阵列中的第i个源连接到输出阵列中的第j个检测器，则SLM矩阵的{i，j}像素的值应处于ON状态。

公开(公告)号：US20130010295A1

公开(公告)日：2013-01-10

申请号：US13636983

申请日：2011-03-04

申请人： Nir Davidson ,  Asher Friesem ,  Moti Fridman

发明人： Nir Davidson ,  Asher Friesem ,  Moti Fridman

IPC分类号： G01J4/00

CPC分类号： G01J4/04 ,  G01J4/02

摘要： A system and method are presented for use in measuring polarization of an optical beam. The system is configured and operable for determining polarization profile along a cross section of the input optical beam, and comprises an optical system and a pixel matrix. The optical system comprises a polarization beam splitting assembly configured and operable for splitting said input optical beam into a predetermined number of beam components with a predetermined polarization relation between them, the polarization beam splitting assembly comprising a first polarization beam splitter in an optical path of the input optical beam splitting said input optical beam into a first plurality of beam components with a certain polarization relation between them and a birefringent element in an optical path of said first plurality of the beam components for splitting each of them into a pair of beams having ordinary and extraordinary polarizations, thereby producing said predetermined number of output beam components. The pixel matrix is located in substantially non intersecting optical paths of said output beam components and generates a corresponding number of output data pieces indicative of intensity distribution within said output beam components, respectively, data contained in said data pieces being indicative of the polarization profile along the cross section of the input optical beam.

摘要翻译： 提出了一种用于测量光束偏振的系统和方法。 该系统被配置和操作用于沿着输入光束的横截面确定偏振分布，并且包括光学系统和像素矩阵。 光学系统包括偏振分束组件，其被配置和可操作用于将所述输入光束分成具有预定偏振关系的预定数量的光束分量，所述偏振分束组件包括位于所述第一偏振分束器的光路中的第一偏振分束器 输入光束将所述输入光束分解成在它们之间具有一定偏振关系的第一多个光束分量和在所述第一多个光束分量的光路中的双折射元件，以将它们中的每一个分成具有普通的一对光束 和非常极化，从而产生所述预定数量的输出光束分量。 像素矩阵位于所述输出光束分量的基本上非相交的光路中，并且分别产生指示所述输出光束分量内的强度分布的相应数量的输出数据段，所述数据段中包含的数据表示沿着 输入光束的横截面。

公开(公告)号：US08797532B2

公开(公告)日：2014-08-05

申请号：US13636983

申请日：2011-03-24

申请人： Nir Davidson ,  Asher Friesem ,  Moti Fridman

发明人： Nir Davidson ,  Asher Friesem ,  Moti Fridman

IPC分类号： G01J4/00

CPC分类号： G01J4/04 ,  G01J4/02

摘要： Measuring polarization profile along an input optical beam cross-section using an optical system includes a polarization beam splitting assembly for splitting the input beam into a predetermined number of beam components with a predetermined polarization relation between them, and including a polarization beam splitter in an optical path of the input beam splitting it into beam components having a polarization relationship and a birefringent element in an optical path of the beam components for splitting each of them into a pair of beams having ordinary and extraordinary polarizations, thereby producing the predetermined number of output beam components. The pixel matrix is located in substantially non-intersecting optical paths of the output beam components and generates a number of output data pieces indicative of intensity distribution within the output beam components and data contained therein being indicative of the polarization profile along the input beam cross-section.

摘要翻译： 使用光学系统沿着输入光束横截面测量偏振曲线包括偏振分束组件，用于将输入光束分成具有预定偏振关系的预定数量的光束分量，并且包括光学中的偏振分束器 输入光束的路径将其分裂为具有偏振关系的光束分量和光束分量的光路中的双折射元件，用于将它们中的每一个分成具有普通和非常偏振的一对光束，从而产生预定数量的输出光束 组件。 像素矩阵位于输出光束分量的基本上不相交的光路中，并且产生指示输出光束分量内的强度分布的多个输出数据片段，其中包含的数据表示沿着输入光束交叉的偏振轮廓， 部分。

公开(公告)号：US06580529B1

公开(公告)日：2003-06-17

申请号：US09647520

申请日：2000-12-15

申请人： Yaakov Amitai ,  Asher Friesem

发明人： Yaakov Amitai ,  Asher Friesem

IPC分类号： G02B532

CPC分类号： G02B27/0081 ,  G02B5/32 ,  G02B27/0944 ,  G03H1/0408 ,  G03H1/2249 ,  G03H1/2286 ,  G03H2001/2226 ,  G03H2001/226 ,  G03H2001/261 ,  G03H2001/264 ,  G03H2210/30

摘要： The invention provides a holographic optical device, including a light-transmissive substrate; a first holographic optical element carried by the substrate; at least one second holographic optical element carried by the substrate laterally of the first holographic optical element, and at least one third holographic optical element carried by the substrate laterally displaced from the first and second holographic optical elements; wherein the center of at least one of the first, second or third holographic optical elements is located outside a single, straight line.

摘要翻译： 本发明提供一种全息光学装置，包括透光基板; 由所述基板承载的第一全息光学元件; 至少一个第二全息光学元件，由第一全息光学元件横向地由基底承载;以及至少一个第三全息光学元件，由第一和第二全息光学元件横向移位的基板承载; 其中所述第一，第二或第三全息光学元件中的至少一个的中心位于单个直线的外侧。

公开(公告)号：US20070147445A1

公开(公告)日：2007-06-28

申请号：US10583125

申请日：2006-06-16

申请人： Amiel Ishaaya ,  Nil Davidson ,  Asher Friesem ,  Liran Shimshi

发明人： Amiel Ishaaya ,  Nil Davidson ,  Asher Friesem ,  Liran Shimshi

IPC分类号： H01S3/13

CPC分类号： H01S3/07 ,  H01S3/0805 ,  H01S3/08054 ,  H01S3/08059 ,  H01S3/08063 ,  H01S3/08068 ,  H01S3/0811 ,  H01S3/0816 ,  H01S3/082 ,  H01S3/10 ,  H01S3/10092 ,  H01S3/1106 ,  H01S3/1307 ,  H01S3/2383 ,  H01S5/4012 ,  H01S5/4025 ,  H01S5/4062

摘要： A resonator cavity (10A) and method and presented. The resonator cavity (10A) comprises at least one gain medium (16) and end reflectors (12, 14) which define together longitudinal modes of light in the cavity, and further comprises an intra-cavity beam coupler assembly (20). The beam coupler assembly (20) is configured to split light impinging thereon into a predetermined number of spatially separated light channels, and to cause phase locking and at least partial coherent combining of the light channels, having common longitudinal and transverse modes, in a double pass through the beam coupler assembly (20). The resonator cavity (10A) is configured and operable to produce at least one output combined light channel of a predetermined intensity profile.

摘要翻译： 一种谐振腔（10A）及其方法。 谐振器腔（10A）包括至少一个增益介质（16）和端部反射器（12,14），所述增益介质和端部反射器（12,14）将空腔中的纵向光模式一起限定，并且还包括腔内光束耦合器组件（20）。 光束耦合器组件（20）被配置成将入射到其上的光分解成预定数量的空间分离的光通道，并且使得具有共同的纵向和横向模式的光通道的相位锁定和至少部分相干组合在双 穿过光束耦合器组件（20）。 谐振器腔（10A）被配置和可操作以产生具有预定强度分布的至少一个输出组合光通道。

公开(公告)号：US06185015B2

公开(公告)日：2001-02-06

申请号：US09445687

申请日：2000-03-07

申请人： Silviu Reinhorn ,  Asher Friesem ,  Yaakov Amitai

发明人： Silviu Reinhorn ,  Asher Friesem ,  Yaakov Amitai

IPC分类号： G02B532

CPC分类号： G02B5/32 ,  G02B6/43

摘要： A planar optical correlator including at least first and second optical substrates (30, 32), through which light propagates by means of total internal reflection, at least first and second holographic lenses (20, 22) on the first optical substrate and optical third and fourth holographic lenses (24, 26) on the second optical substrate, each of the first and second and third and fourth holographic lenses performing a Fourier transformation on the input light to their respective optical substrates, the substrates positioned such that the second and third holographic lenses at least partially face each other. A filter (36) is positioned between the second and third holographic lenses.

摘要翻译： 一种平面光学相关器，至少包括第一和第二光学基板（30,32），光通过其全反射传播至少第一和第二全息透镜（20,22），光学第三和第三光学基板 第四全息透镜（24,26）在第二光学基板上，第一和第二和第三和第四全息透镜中的每一个对输入光进行傅里叶变换到它们各自的光学基板，所述基板定位成使得第二和第三全息透镜 透镜至少部分地彼此面对。 滤光器（36）位于第二和第三全息透镜之间。