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31. 发明申请

US20090147212A1 SINGLE CONTROL LIQUID CRYSTAL OPTICAL SWITCH AND ATTENUATOR 有权
标题翻译：单控制液晶光开关和衰减器
公开(公告)号：US20090147212A1
公开(公告)日：2009-06-11
申请号：US12356038
申请日：2009-01-19
申请人： Xuehua WU , Haijun Yuan , Christopher Lin , Giovanni Barbarossa
发明人： Xuehua WU , Haijun Yuan , Christopher Lin , Giovanni Barbarossa
IPC分类号： G02F1/1347
CPC分类号： G02B6/2713 , G02B6/2931 , G02F1/0136 , G02F1/1326 , G02F1/133 , G02F1/133528 , G02F1/31 , G02F2001/13355 , G02F2201/122 , G02F2201/307 , G02F2203/48
摘要： An optical device is configured to perform both switching and attenuation of an optical beam in response to a single control signal. The optical device includes a liquid-crystal-based beam-polarizing element having polarization-conditioning regions that are controlled using a common electrode. The first polarization-conditioning region conditions the polarization of the input beam in order to separate the input beam into a primary component and a residual component. The second and third polarization-conditioning regions change the polarization of the primary component and the residual component, respectively. The primary component is directed to an output port after it has been attenuated based on its polarization state. The residual component, after passing through the third polarization-conditioning region, has its intensity further reduced based on its polarization state.
摘要翻译：光学装置被配置为响应于单个控制信号执行光束的切换和衰减。光学装置包括具有使用公共电极控制的偏振调节区域的基于液晶的光束偏振元件。第一偏振调节区域调节输入光束的偏振，以便将输入光束分离成初级分量和残余分量。第二和第三偏振调节区分别改变初级分量和残余分量的极化。基于其极化状态衰减后，主要成分被引导到输出端口。残留分量在通过第三偏振调节区域之后，其强度基于其极化状态进一步减小。

32. 发明申请

US20080260390A1 BISTABLE LIQUID CRYSTAL OPTICAL DEVICE 审中-公开
标题翻译：双向液晶光学器件
公开(公告)号：US20080260390A1
公开(公告)日：2008-10-23
申请号：US11737070
申请日：2007-04-18
申请人： Giovanni Barbarossa
发明人： Giovanni Barbarossa
IPC分类号： H04B10/00
CPC分类号： G02F1/31 , G02F1/1326 , G02F1/133528 , G02F1/1391 , G02F1/141
摘要： A bistable liquid crystal-based optical device operates with reduced or zero power consumption and maintains a switching state during power loss. The optical device includes a bistable liquid crystal material that maintains a stable molecular orientation in the absence of an electrical field. The optical device further includes a beam steering device positioned downstream of the liquid crystal, such as a birefringent crystal or Wollaston prism. The molecular orientation of the liquid crystal modulates the polarization state of an incident light beam, and the beam steering device directs the beam along a first optical path, a second optical path, or both paths, based on the polarization state of the light.
摘要翻译：双稳态液晶光学器件以功耗降低或零功耗工作，并在断电期间保持开关状态。光学装置包括双稳态液晶材料，其在不存在电场的情况下保持稳定的分子取向。光学装置还包括位于液晶下游的光束转向装置，例如双折射晶体或Wollaston棱镜。液晶的分子取向调制入射光束的偏振态，并且光束转向装置基于光的偏振状态沿着第一光路，第二光路或两条路径引导光束。

33. 发明授权

US07186912B2 Hermetic lid seal by metal pressing for fiber optic module 有权
标题翻译：用于光纤模块的金属压盖密封盖
公开(公告)号：US07186912B2
公开(公告)日：2007-03-06
申请号：US10671748
申请日：2003-09-26
申请人： William Z. Guan , Giovanni Barbarossa
发明人： William Z. Guan , Giovanni Barbarossa
IPC分类号： H02G3/08
CPC分类号： H05K5/063 , G02B6/4201 , G02B6/4251
摘要： The invention describes a fiber optic module package which uses a metal-to-metal contact seal between a lid and a module housing. The metal-to-metal contact seal provides a sealing mechanism between the lid and the module housing. The module housing has a knife-shaped edge that can bite into a bottom surface of the lid when pressure is exerted on the lid. In a first embodiment, the module housing has a side slot in which an outer wall of the lid can enter which serves as a holding mechanism between the lid and the module housing. In a second embodiment, the module housing has an interior wall which can be pressed into a curved surface of the lid that serves as a holding mechanism between the lid and the module housing. In a third embodiment, multiple screws are inserted through multiple holes on the lid and into the module housing which serve as a holding mechanism between the lid and the module housing.
摘要翻译：本发明描述了一种光纤模块封装，其使用盖和模块壳体之间的金属对金属的接触密封。金属对金属接触密封件在盖和模块壳体之间提供了密封机构。模块壳体具有刀形边缘，当压力施加在盖子上时，可以咬入盖的底表面。在第一实施例中，模块壳体具有侧槽，盖子的外壁可以进入其中，其用作盖和模块壳体之间的保持机构。在第二实施例中，模块壳体具有可被压入盖的弯曲表面的内壁，其用作盖和模块壳体之间的保持机构。在第三实施例中，多个螺钉通过盖上的多个孔插入模块壳体中，其用作盖和模块壳体之间的保持机构。

34. 发明授权

US07184623B2 Apparatus, system and method for an adiabatic coupler for multi-mode fiber-optic transmission systems 有权
标题翻译：用于多模光纤传输系统的绝热耦合器的装置，系统和方法
公开(公告)号：US07184623B2
公开(公告)日：2007-02-27
申请号：US11051742
申请日：2005-02-03
申请人： Ming Cai , Giovanni Barbarossa
发明人： Ming Cai , Giovanni Barbarossa
IPC分类号： G02B6/26
CPC分类号： G02B6/262 , G02B6/0288 , G02B6/14 , G02B6/2551 , G02B6/2552
摘要： An improved fiber-optic communications system comprises a multi-mode waveguide carrying an optical signal, a single-mode waveguide optically coupled to and receiving the optical signal from the multi-mode waveguide and an adiabatic coupler optically coupled between the multi-mode waveguide and the single-mode waveguide. The multi-mode and single-mode waveguides may be optical fibers. The adiabatic coupler may comprise a tapered core surrounded by a cladding. Alternatively, the adiabatic coupler may comprise a core surrounded by a cladding, wherein the refractive index of at least one of the core and the cladding varies over the length of the adiabatic coupler.
摘要翻译：改进的光纤通信系统包括承载光信号的多模式波导，与多模波导光耦合并接收光信号的单模波导和光耦合在多模波导与单模波导。多模和单模波导可以是光纤。绝热耦合器可以包括被包层包围的锥形芯。或者，绝热耦合器可以包括由包层围绕的芯，其中芯和包层中的至少一个的折射率在绝热耦合器的长度上变化。

35. 发明授权

US07046374B1 Interferometers for optical communications utilizing photo-sensitive materials 有权
标题翻译：采用光敏材料的光通信干涉仪
公开(公告)号：US07046374B1
公开(公告)日：2006-05-16
申请号：US10388580
申请日：2003-03-13
申请人： Giovanni Barbarossa
发明人： Giovanni Barbarossa
IPC分类号： G01B9/02
CPC分类号： G01J3/26 , G02B6/29358 , G02B6/29395
摘要： An interferometer includes: a first glass plate optically coupled to a second glass plate, forming an optical interferometric cavity therebetween; a first reflective coating coupled to the first glass plate within the optical interferometric cavity, where the first reflective coating is partially reflective; a second reflective coating coupled to the second glass plate within the optical interferometric cavity, where the second reflective coating is at least partially reflective; and a tuning plate residing within the interferometric cavity and optically coupled to the first and second reflective coatings, where the tuning plate comprises a photosensitive material, where a refractive index of the photosensitive material may be modified by exposure to light. The interferometer is adjusted through exposure of the tuning plate to light so that its pass, transmission, or reflection bands align to standard channel positions, or the pass bands of an apparatus incorporating the interferometer align to standard channel positions.
摘要翻译：干涉仪包括：光学耦合到第二玻璃板的第一玻璃板，在其间形成光学干涉腔; 第一反射涂层，其耦合到所述光学干涉腔内的所述第一玻璃板，其中所述第一反射涂层是部分反射的; 第二反射涂层，其耦合到所述光学干涉腔内的所述第二玻璃板，其中所述第二反射涂层至少部分反射; 以及驻留在干涉腔内并与光学耦合到第一和第二反射涂层的调谐板，其中调谐板包括感光材料，其中感光材料的折射率可以通过曝光而被改变。通过将调谐板暴露于光以调整干涉仪，使得其通过，透射或反射波段与标准通道位置对准，或者将包含干涉仪的设备的通带与标准通道位置对准。

36. 发明申请

US20060039648A1 Apparatus, system and method for a tunable optical filter and channel dropping de-multiplexer 有权
标题翻译：用于可调光滤波器和信道丢弃去多路复用器的装置，系统和方法
公开(公告)号：US20060039648A1
公开(公告)日：2006-02-23
申请号：US11198721
申请日：2005-08-05
申请人： Giovanni Barbarossa , Ming Li , Song Peng
发明人： Giovanni Barbarossa , Ming Li , Song Peng
IPC分类号： G02B6/26
CPC分类号： G02B6/29382 , G02B6/272 , G02B6/2766 , G02B6/29361 , G02B6/29362 , G02B6/29395 , G02F1/313 , G02F2202/40 , G02F2203/05
摘要： A tunable optical filter comprises an optical switch having a single first optical port and a plurality of second optical ports; a plurality of band pass filters, each one of the band pass filters optically coupled to a respective second optical port; and an optical multiplexer having a plurality of inputs and a single output, each input optically coupled to a respective band pass filter, wherein the optical switch delivers a plurality of optical channels to a selected one of the band pass filters, the selected band pass filter transmitting a single selected optical channel to an input of the optical multiplexer. Alternatively, the multiplexer may be substituted by a second optical switch. Optionally, the band pass filters may reflect other channels back to the plurality of second optical ports.
摘要翻译：可调光滤波器包括具有单个第一光端口和多个第二光端口的光开关; 多个带通滤波器，每个带通滤波器光耦合到相应的第二光端口; 以及具有多个输入和单个输出的光学多路复用器，每个输入光学耦合到相应的带通滤波器，其中所述光学开关将多个光学信道传送到所选择的带通滤波器中的一个，所选择的带通滤波器将单个选择的光信道发送到光复用器的输入。或者，多路复用器可以由第二光学开关代替。可选地，带通滤波器可以将其它信道反射回多个第二光端口。

37. 发明授权

US06714705B1 Tunable chromatic dispersion and dispersion slope compensator utilizing a virtually imaged phased array and a rotating grating 失效
标题翻译：可调谐色散和色散斜率补偿器利用虚拟成像的相控阵列和旋转光栅
公开(公告)号：US06714705B1
公开(公告)日：2004-03-30
申请号：US10140610
申请日：2002-05-07
申请人： Christopher Lin , Simon X. F. Cao , Giovanni Barbarossa , Charlene Yang
发明人： Christopher Lin , Simon X. F. Cao , Giovanni Barbarossa , Charlene Yang
IPC分类号： G02B634
CPC分类号： G02B6/29358 , G02B6/29311 , G02B6/29313 , G02B6/29314 , G02B6/29394 , G02B6/29395
摘要： A tunable chromatic dispersion and dispersion slope compensator that utilizes a Virtually Imaged Phased Array (VIPA), a rotating transmissive diffraction grating, and a mirror with different curvatures for different cross-sections is disclosed. The compensator in accordance with the present invention provides simultaneous tunable compensation of chromatic dispersion and dispersion slope utilizing a single apparatus. The amount of compensation is accomplished by rotating the transmissive diffracting grating and/or translating the mirror. A system which utilizes the compensator is thus cost effective to manufacture.
摘要翻译：公开了一种可调谐色散和色散斜率补偿器，其利用虚拟成像相位阵列（VIPA），旋转透射衍射光栅以及用于不同截面具有不同曲率的反射镜。根据本发明的补偿器使用单个装置提供色散和色散斜率的同时可调谐补偿。通过旋转透射衍射光栅和/或平移反射镜来实现补偿量。因此，利用补偿器的系统是制造成本有效的。

38. 发明授权

US08605247B2 High extinction ratio liquid crystal optical switch 有权
公开(公告)号：US08605247B2
公开(公告)日：2013-12-10
申请号：US13485052
申请日：2012-05-31
申请人： Haijun Yuan , Xuehua Wu , Christopher Lin , Giovanni Barbarossa
发明人： Haijun Yuan , Xuehua Wu , Christopher Lin , Giovanni Barbarossa
IPC分类号： G02F1/13 , G02B27/28
CPC分类号： G02F1/1313 , G02B5/3083 , G02B6/35 , G02B27/283 , G02F1/1326 , G02F1/133528 , G02F1/13363 , G02F1/31
摘要： An optical switch for performing high extinction ratio switching of an optical signal includes a beam polarizing element and one or more optical elements. The optical elements are configured to direct an optical signal along a first or second optical path based on the polarization state of the optical signal as it passes through the optical elements. The optical switch performs high extinction ratio switching of the optical signal by preventing unwanted optical energy from entering an output port by using an absorptive or reflective optical element or by directing the unwanted optical energy along a different optical path.

39. 发明授权

US08472031B2 Apparatus and method for optical interrogation 有权
标题翻译：光学询问的装置和方法
公开(公告)号：US08472031B2
公开(公告)日：2013-06-25
申请号：US12800873
申请日：2010-05-25
申请人： Giovanni Barbarossa , Yan Zhou
发明人： Giovanni Barbarossa , Yan Zhou
IPC分类号： G01B9/02
CPC分类号： G01B9/02027 , G01B9/02024 , G01B9/0209 , G01B2290/70 , G01N21/23
摘要： An interrogation apparatus and method use a partial shear optical interference apparatus to interrogate the optical properties of an array of target specimen probe volumes as compared to an array of reference sample probe volumes. The apparatus produces a formatted probe beam that contains a partially sheared probe beam pair that is formatted into an array of completely sheared probe beam pairs. Target specimen probe volumes and reference sample probe volumes are suitably organized and exposed to the array of completely sheared probe beam pairs.
摘要翻译：与参考样本探针体积的阵列相比，询问装置和方法使用部分剪切光学干涉装置来询问目标样本探针体积阵列的光学性质。该装置产生格式化的探测光束，其包含被部分剪切的探测光束对，其被格式化成完全剪切的探测光束对的阵列。目标样本探针体积和参考样本探针体积适当地组织并暴露于完全剪切的探针束对阵列。

40. 发明授权

US07929108B2 Optical switching device with reconfigurable channel spacing 有权
标题翻译：具有可重构信道间隔的光交换设备
公开(公告)号：US07929108B2
公开(公告)日：2011-04-19
申请号：US12032238
申请日：2008-02-15
申请人： Giovanni Barbarossa
发明人： Giovanni Barbarossa
IPC分类号： G02F1/29
CPC分类号： G02F1/0136 , G02B6/2713 , G02B6/2931 , G02F1/134309 , G02F1/13439 , G02F1/31 , G02F2001/13355 , G02F2201/122 , G02F2203/07 , G02F2203/585 , H04J14/02
摘要： An optical switching device includes an array of liquid crystal macropixels, wherein each macropixel includes at least two liquid crystal subpixels. The subpixels may be controlled together to act as a single polarizing pixel, or independently to act as multiple polarizing pixels. When the switching device processes a WDM having a wide channel spacing, the subpixels are controlled together, and when the switching device processes a WDM having a narrow channel spacing, each subpixel is controlled independently.
摘要翻译：一种光学开关装置包括液晶宏片阵列，其中每个大像素包括至少两个液晶子像素。子像素可以一起被控制以用作单个偏振像素，或独立地用作多个偏振像素。当切换装置处理具有宽信道间隔的WDM时，子像素被一起控制，并且当开关装置处理具有窄信道间隔的WDM时，每个子像素被独立地控制。

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