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1. 发明申请

US20110033151A1 OPTICAL WAVELENGTH SELECTIVE ROUTER 有权
标题翻译：光波长选择路由器
公开(公告)号：US20110033151A1
公开(公告)日：2011-02-10
申请号：US12911661
申请日：2010-10-25
申请人： Gil COHEN , Seong Woo Suh , Yossi Corem
发明人： Gil COHEN , Seong Woo Suh , Yossi Corem
IPC分类号： G02B6/35
CPC分类号： G02B6/29383 , G02B6/2713 , G02B6/29311 , G02B6/29313 , G02B6/3512 , G02B6/3548 , G02B6/356 , G02B6/3594 , H04J14/0212 , H04J14/0219 , H04Q11/0005 , H04Q2011/003 , H04Q2011/0035
摘要： A fiber-optical, wavelength selective switch, especially for channel routing with equalization and blocking applications. The input signals are converted to light beams having predefined polarizations (41). The beams are then laterally expanded (43), and then undergo spatial dispersion in the beam expansion plane. The different wavelength components are directed through a polarization rotation device, pixilated along the wavelength dispersion direction such that each pixel operates on a separate wavelength. Each beam is passed into a pixilated beam steering array (48), for directing each wavelength to a desired output port. The beam steering devices can be MEMS-based or Liquid crystal-based, or an LCOS array. When the appropriate voltage is applied to a pixel and its associated beam steering element, the polarization of the light passing through the pixel is rotated and the beam steered to couple to the selected output port.
摘要翻译：一种光纤，波长选择开关，特别适用于具有均衡和阻塞应用的信道路由。输入信号被转换成具有预定极化的光束（41）。然后将梁横向膨胀（43），然后在梁膨胀平面中进行空间色散。不同的波长分量被引导通过偏振旋转装置，沿着波长色散方向被像素化，使得每个像素在单独的波长上操作。每个光束被传送到像素化的光束操纵阵列（48）中，用于将每个波长指向所需的输出端口。光束转向装置可以是基于MEMS的或基于液晶的或LCOS阵列。当适当的电压施加到像素及其相关联的光束操纵元件时，通过像素的光的偏振被旋转，并且光束被转向以耦合到所选择的输出端口。

2. 发明授权

US08078019B2 Optical wavelength selective router 有权
标题翻译：光波长选择性路由器
公开(公告)号：US08078019B2
公开(公告)日：2011-12-13
申请号：US12911661
申请日：2010-10-25
申请人： Gil Cohen , Seong Woo Suh , Yossi Corem
发明人： Gil Cohen , Seong Woo Suh , Yossi Corem
IPC分类号： G02B6/26
CPC分类号： G02B6/29383 , G02B6/2713 , G02B6/29311 , G02B6/29313 , G02B6/3512 , G02B6/3548 , G02B6/356 , G02B6/3594 , H04J14/0212 , H04J14/0219 , H04Q11/0005 , H04Q2011/003 , H04Q2011/0035
摘要： A fiber-optical, wavelength selective switch, especially for channel routing with equalization and blocking applications. The input signals are converted to light beams having predefined polarizations (41). The beams are then laterally expanded (43), and then undergo spatial dispersion in the beam expansion plane. The different wavelength components are directed through a polarization rotation device, pixilated along the wavelength dispersion direction such that each pixel operates on a separate wavelength. Each beam is passed into a pixilated beam steering array (48), for directing each wavelength to a desired output port. The beam steering devices can be MEMS-based or Liquid crystal-based, or an LCOS array. When the appropriate voltage is applied to a pixel and its associated beam steering element, the polarization of the light passing through the pixel is rotated and the beam steered to couple to the selected output port.
摘要翻译：一种光纤，波长选择开关，特别适用于具有均衡和阻塞应用的信道路由。输入信号被转换成具有预定极化的光束（41）。然后将梁横向膨胀（43），然后在梁膨胀平面中进行空间色散。不同的波长分量被引导通过偏振旋转装置，沿着波长色散方向被像素化，使得每个像素在单独的波长上操作。每个光束被传送到像素化的光束操纵阵列（48）中，用于将每个波长指向所需的输出端口。光束转向装置可以是基于MEMS的或基于液晶的或LCOS阵列。当适当的电压施加到像素及其相关联的光束操纵元件时，通过像素的光的偏振被旋转，并且光束被转向以耦合到所选择的输出端口。

3. 发明申请

US20080181559A1 Single-Pole Optical Wavelength Selector 有权
标题翻译：单极光波长选择器
公开(公告)号：US20080181559A1
公开(公告)日：2008-07-31
申请号：US11914946
申请日：2006-05-18
申请人： Yossi Corem , Seong Woo Suh , Boris Frenkel , Haggai Arbell
发明人： Yossi Corem , Seong Woo Suh , Boris Frenkel , Haggai Arbell
IPC分类号： G02B6/42
CPC分类号： G02F1/31 , G02B6/272 , G02B6/29311
摘要： A fiber-optical, wavelength selective switch, especially for channel blocking applications. The input signal is converted to light beams having predefined polarizations relative to the plane in which optical manipulation of the beam is performed. The beams are then preferably laterally expanded in this system plane only, and then spatially dispersed in the beam expansion plane, preferably by means of a diffraction grating. The light is directed through a polarization rotation device, preferably a liquid crystal cell, pixelated along the wavelength dispersive direction such that each pixel operates on a separate wavelength. When the appropriate control voltage is applied to a pixel, the polarization of the light signal passing through that pixel is rotated. The wavelength dispersed beams from all of the pixels are then recombined, and are passed towards a polarization selective device, aligned such that only selected polarization components are transmitted out of the switch.
摘要翻译：光纤，波长选择开关，特别适用于通道阻塞应用。输入信号被转换成相对于其中执行光束的光学操作的平面具有预定极化的光束。然后优选地，梁在该系统平面中仅横向膨胀，然后优选地通过衍射光栅在空间上分散在光束扩展平面中。光被引导通过偏振旋转装置，优选地是沿着波长色散方向像素化的液晶单元，使得每个像素在单独的波长上操作。当对像素施加适当的控制电压时，通过该像素的光信号的偏振旋转。然后将来自所有像素的波长分散光束重新组合，并且被传送到偏振选择装置，对准使得仅选择的偏振分量被传送出开关。

4. 发明申请

US20080316585A1 Optical Wavelength Selective Router 有权
标题翻译：光波长选择性路由器
公开(公告)号：US20080316585A1
公开(公告)日：2008-12-25
申请号：US12066249
申请日：2006-09-10
申请人： Gil Cohen , SeongWoo Suh , Yossi Corem
发明人： Gil Cohen , SeongWoo Suh , Yossi Corem
IPC分类号： G02F1/29
CPC分类号： G02B6/29383 , G02B6/2713 , G02B6/29311 , G02B6/29313 , G02B6/3512 , G02B6/3548 , G02B6/356 , G02B6/3594 , H04J14/0212 , H04J14/0219 , H04Q11/0005 , H04Q2011/003 , H04Q2011/0035
摘要： A fiber-optical, wavelength selective switch, especially for channel routing with equalization and blocking applications. The input signals are converted to light beams having predefined polarizations (41). The beams are then laterally expanded (43), and then undergo spatial dispersion in the beam expansion plane. The different wavelength components are directed through a polarization rotation device, pixilated along the wavelength dispersion direction such that each pixel operates on a separate wavelength. Each beam is passed into a pixilated beam steering array (48), for directing each wavelength to a desired output port. The beam steering devices can be MEMS-based or Liquid crystal-based, or an LCOS array. When the appropriate voltage is applied to a pixel and its associated beam steering element, the polarization of the light passing through the pixel is rotated and the beam steered to couple to the selected output port.
摘要翻译：一种光纤，波长选择开关，特别适用于具有均衡和阻塞应用的信道路由。输入信号被转换成具有预定极化的光束（41）。然后将梁横向膨胀（43），然后在梁膨胀平面中进行空间色散。不同的波长分量被引导通过偏振旋转装置，沿着波长色散方向被像素化，使得每个像素在单独的波长上操作。每个光束被传送到像素化的光束操纵阵列（48）中，用于将每个波长指向所需的输出端口。光束转向装置可以是基于MEMS的或基于液晶的或LCOS阵列。当适当的电压施加到像素及其相关联的光束操纵元件时，通过像素的光的偏振被旋转，并且光束被转向以耦合到所选择的输出端口。

5. 发明授权

US07574073B2 Optical devices with integral isolators 有权
标题翻译：带集成隔离器的光学器件
公开(公告)号：US07574073B2
公开(公告)日：2009-08-11
申请号：US12048373
申请日：2008-03-14
申请人： Yossi Corem , Gil Cohen
发明人： Yossi Corem , Gil Cohen
IPC分类号： G02B6/00
CPC分类号： G02F1/093
摘要： An isolator assembly, for use internally within a multi-port optical switch, and which operates on a preselected number of input port channels. The assembly incorporates a sequence of a birefringent crystal with a half wave plate on part of its output face acting as a linear polarizer, a 45° Faraday rotator element and a half wave plate aligned at 22.5° to the polarization direction of the light rotated by the Faraday rotator. This arrangement ensures that any light spuriously returned from a reflective beam switching element of the switch is blocked from transmission out of the paths of light which the isolator assembly covers because of the orientation of the light polarization returned to the birefringent crystal. The isolator assembly is arranged such that it does not cover the beam path leading to the output port or ports, such that legitimate output beams are transmitted unhindered.
摘要翻译：隔离器组件，用于在多端口光开关内部使用，并且在预选数量的输入端口通道上工作。该组件包括一个双折射晶体序列，半波片的一部分作为线偏振器的输出面，45°法拉第旋转元件和半波片，与光转动的光的偏振方向22.5°对准法拉第旋转器。这种布置确保了从开关的反射光束开关元件返回的任何光被隔离器组件覆盖的光的路径阻挡，这是因为返回到双折射晶体的光偏振的取向。隔离器组件布置成使得其不覆盖通向输出端口的光束路径，使得合法的输出光束被不受阻碍地传输。

6. 发明授权

US07468840B2 Wavelength selective optical switch 有权
标题翻译：波长选择光开关
公开(公告)号：US07468840B2
公开(公告)日：2008-12-23
申请号：US10492484
申请日：2002-06-25
申请人： Gil Cohen , Yaron Silberberg , Yossi Corem
发明人： Gil Cohen , Yaron Silberberg , Yossi Corem
IPC分类号： G02B27/28
CPC分类号： H04Q11/0005 , G02B6/272 , G02B6/2766 , G02B6/2931 , G02B6/29311 , G02B6/29313 , G02B6/2938 , G02B6/29395 , G02F1/1326 , G02F1/31 , G02F2203/05 , H04Q2011/0024 , H04Q2011/0035
摘要： A wavelength selective switch, in which an input optical signal is wavelength-dispersed and polarization-split in two angularly oriented planes. A polarization rotation device, such as a liquid crystal polarization modulator, pixelated along the wave-length dispersive direction such that each pixel operates on a separate wavelength channel, rotates the polarization of the light signal passing through the pixel, according to the control voltage applied to that pixel. The polarization modulated signals are then wave-length-recombined and polarization-recombined by means of similar dispersion and polarization combining components as were used to respectively disperse and split the input signals. The direction of the output signal is determined by whether the polarization of a particular wavelength channel was rotated by the polarization modulator pixel, or not. In this way, a fast, wavelength dependent, optical switch is provided, capable of use in WDM switching applications.
摘要翻译：波长选择开关，其中输入光信号被波长分散并且在两个角度定向的平面中被偏振分割。根据施加的控制电压，沿着波长色散方向像素化的偏振旋转装置，使得每个像素在单独的波长通道上工作，使通过像素的光信号的偏振旋转到那个像素然后通过类似的色散和偏振组合分量对偏振调制信号进行波长重组和偏振复合，如分别分散和分割输入信号。输出信号的方向由特定波长信道的偏振是否被偏振调制器像素旋转确定。以这种方式，提供了一种快速，依赖于波长的光开关，能够在WDM开关应用中使用。

7. 发明申请

US20080030867A1 Collimator array 有权
标题翻译：准直器阵列
公开(公告)号：US20080030867A1
公开(公告)日：2008-02-07
申请号：US11882459
申请日：2007-08-01
申请人： Yossi Corem , Gil Cohen , Boris Frenkel
发明人： Yossi Corem , Gil Cohen , Boris Frenkel
IPC分类号： G02B27/30
CPC分类号： G02B3/0075 , G02B3/0031 , G02B3/005 , G02B5/08 , G02B19/0014 , G02B19/0057 , G02B27/0961 , G02B27/30
摘要： A collimator array using a molded element to hold the input fibers and to collimate the light. The input fibers are held within holes in one face of the element, and the collimation of the light emitted from the ends of the fibers is performed by an array of lenses appropriately located such that each lens collimates the light emitted from a fiber end. The lateral spacing between the holes is made to be equal to the lateral spacing between the lenses of the array. Since, in a molded element, this lateral spacing can be accurately provided, good alignment of the input fibers with the lenses can be achieved. The depths of the holes can be made such that when a fiber is inserted right to the bottom of a hole, the end of that fiber is accurately located such that the light emitted therefrom is collimated by the lens. This avoids the need for accurate manual alignment of the fibers of the array. Alternatively, the hole can be made slightly deeper than this predetermined depth, to provide some adjustment in the lens-fiber distance for adjusting the level of collimation.
摘要翻译：准直器阵列，其使用模制元件来保持输入光纤并准直光。输入光纤被保持在元件的一个面中的孔内，并且通过适当定位的透镜阵列来执行从光纤端部发射的光的准直，使得每个透镜准直从光纤端发射的光。使孔之间的横向间隔与阵列的透镜之间的横向间隔相等。因为在模制元件中，可以精确地提供该横向间隔，可以实现输入光纤与透镜的良好对准。孔的深度可以做成使得当光纤直接插入到孔的底部时，光纤的端部被精确地定位成使得从其发射的光被透镜准直。这避免了对阵列的光纤的精确手动对准的需要。或者，可以使孔比该预定深度稍微更深，以提供用于调整准直水平的透镜光纤距离中的一些调整。

8. 发明申请

US20050036202A1 Wavelength selective optical switch 有权
标题翻译：波长选择光开关
公开(公告)号：US20050036202A1
公开(公告)日：2005-02-17
申请号：US10492484
申请日：2002-06-25
申请人： Gil Cohen , Yaron Silberberg , Yossi Corem
发明人： Gil Cohen , Yaron Silberberg , Yossi Corem
IPC分类号： G02F1/061 , G02B6/34 , G02B6/35 , G02B27/28 , G02F1/13 , G02F1/1333 , G02F1/31 , H04Q11/00 , G02B6/26 , G02B6/42
CPC分类号： H04Q11/0005 , G02B6/272 , G02B6/2766 , G02B6/2931 , G02B6/29311 , G02B6/29313 , G02B6/2938 , G02B6/29395 , G02F1/1326 , G02F1/31 , G02F2203/05 , H04Q2011/0024 , H04Q2011/0035
摘要： A wavelength selective switch, in which an input optical signal is wavelength-dispersed and polarization-split in two angularly oriented planes. A polarization rotation device, such as a liquid crystal polarization modulator, pixelated along the wave-length dispersive direction such that each pixel operates on a separate wavelength channel, rotates the polarization of the light signal passing through the pixel, according to the control voltage applied to that pixel. The polarization modulated signals are then wave-length -recombined and polarization-recombined by means of similar dispersion and polarization combining components as were used to respectively disperse and split the input signals. The direction of the output signal is determined by whether the polarization of a particular wavelength channel was rotated by the polarization modulator pixel, or not. In this way, a fast, wavelength dependent, optical switch is provided, capable of use in WDM switching applications.
摘要翻译：波长选择开关，其中输入光信号被波长分散并且在两个角度定向的平面中被偏振分割。根据施加的控制电压，沿着波长色散方向像素化的偏振旋转装置，使得每个像素在单独的波长通道上工作，使通过像素的光信号的偏振旋转到那个像素然后通过类似的色散和偏振组合分量对偏振调制信号进行波长重组和极化复合，分别用于分散和分割输入信号。输出信号的方向由特定波长信道的偏振是否被偏振调制器像素旋转确定。以这种方式，提供了一种快速，依赖于波长的光开关，能够在WDM开关应用中使用。

9. 发明申请

US20050008288A1 Fiber optical gain equalizer 有权
标题翻译：光纤增益均衡器
公开(公告)号：US20050008288A1
公开(公告)日：2005-01-13
申请号：US10760107
申请日：2004-01-16
申请人： Yossi Corem , Seongwoo Suh , Gil Cohen
发明人： Yossi Corem , Seongwoo Suh , Gil Cohen
IPC分类号： G02F1/21 , H01S3/063 , H01S3/067 , H01S3/10 , G02B6/26
CPC分类号： G02F1/216 , H01S3/06754 , H01S2301/04
摘要： A fiber optical device, whose wavelength profile can be dynamically controlled in real time by the application of control voltages. The device can be used as a fiber optical gain equalizer or a wavelength selective filtering device which is compact, polarization insensitive, and of low manufacturing costs. The device comprises a stepped transparent substrate, through which the input beam is passed. Within the optical paths of the stepped regions of the substrate, electronically variable phase shifting elements are located, each operative to change the phase of the light passing through its associated step, and thus effectively adding tunability to the height of each step. Planar liquid crystal elements may be used as these elements. The elements may be pixelated, each pixel preferably affecting the phase of the light passing through a fraction of the area of the associated step, such that the interference so can be used to vary the transmission through that step. The pixels thus effectively add tunability to the area of each step. Electronic control of the height and area of each step enables the generation and dynamic control of complex transmission profiles.
摘要翻译：一种光纤光学器件，其波长分布可通过施加控制电压实时动态控制。该器件可以用作光纤增益均衡器或波长选择滤波器件，其具有紧凑，极化不灵敏和低制造成本。该装置包括阶梯式透明基板，输入光束通过该基板通过。在基板的台阶区域的光路内，定位有电子可变相移元件，每个元件可操作以改变通过其相关步骤的光的相位，从而有效地将可调性增加到每个台阶的高度。平面液晶元件可以用作这些元件。元件可以是像素化的，每个像素优选地影响通过相关步骤的区域的一部分的光的相位，使得干涉可以用于改变通过该步骤的透射。因此像素有效地增加了每个步骤区域的可调性。电子控制每个步骤的高度和面积使得能够生成和动态控制复杂的传输轮廓。

10. 发明授权

US08923667B2 Wavelength selective switch with multiple input/output ports 有权
标题翻译：具有多个输入/输出端口的波长选择开关
公开(公告)号：US08923667B2
公开(公告)日：2014-12-30
申请号：US13578587
申请日：2011-02-11
申请人： Gil Cohen , Yossi Corem , Roey Harel , Johnny Leung
发明人： Gil Cohen , Yossi Corem , Roey Harel , Johnny Leung
IPC分类号： G02B6/42 , G02B6/35 , H04J14/02
CPC分类号： G02B6/351 , G02B6/353 , G02B6/356 , H04J14/0212
摘要： A multi-port wavelength selective switch includes a one dimensional array of input and output ports. The multi-port wavelength selective switch further includes a wavelength dispersive element configured to receive input optical signals from the input ports, and to disperse wavelength components thereof. Additionally, the multi-port wavelength selective switch includes an array of beam steering devices. Each beam steering device is controllable to a position at which the beam steering device directs a wavelength component of an input optical signal received through a first input port to an output port and directs the same wavelength component of an input optical signal received through a second input port away from all of the output ports.
摘要翻译：多端口波长选择开关包括输入和输出端口的一维阵列。多端口波长选择开关还包括波长色散元件，其被配置为从输入端口接收输入光信号，并且分散其波长分量。另外，多端口波长选择开关包括一束波束转向装置。每个光束转向装置可控制到波束转向装置将通过第一输入端口接收的输入光信号的波长分量引导到输出端口的位置，并且引导通过第二输入接收的输入光信号的相同波长分量端口远离所有输出端口。

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