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1. 发明授权

US06522456B2 Dynamic optical filter 有权
公开(公告)号：US06522456B2
公开(公告)日：2003-02-18
申请号：US09848766
申请日：2001-05-04
申请人： Qiushui Chen , Hua Jiang , Yingyin Zou , Dean Tsang , Paul Melman , Feiling Wang , Guanghai Jin , Jing Zhao
发明人： Qiushui Chen , Hua Jiang , Yingyin Zou , Dean Tsang , Paul Melman , Feiling Wang , Guanghai Jin , Jing Zhao
IPC分类号： G02F100
CPC分类号： G02F1/21 , G02F2001/212 , G02F2202/40 , G02F2203/055 , G02F2203/48
摘要： An apparatus and method for filtering an optical input is disclosed. In an illustrative embodiment, an optical input is split into polarization components along separate paths. The polarization components are then fed into a first electro-optic device that includes a set of electrodes across which a voltage is applied to adjust a wavelength transmission characteristic of the device. A section of the first device positioned between the electrodes preferably has a birefringence that is adjusted depending on the voltage applied across the electrodes. The adjusted components of the optical input are thereafter combined to produce an optical output. Accordingly, the optical input can be attenuated based on the voltage applied to electrodes of the first electro-optic device.

2. 发明授权

US07825381B2 Micromechanical device for infrared sensing 有权
标题翻译：用于红外感测的微机械装置
公开(公告)号：US07825381B2
公开(公告)日：2010-11-02
申请号：US12072702
申请日：2008-02-27
申请人： Matthew Erdtmann , Jing Zhao , Guanghai Jin
发明人： Matthew Erdtmann , Jing Zhao , Guanghai Jin
IPC分类号： G01J5/38
CPC分类号： G01J5/02 , G01J5/023 , G01J5/40
摘要： A micromechanical device including an improved sensing element and improved bending elements is described. Sensing elements include multi-layered structures which are thinner, lighter, and flatter than structures presently known within the related arts. Bending elements include structures which separately respond to illumination by an infrared source so as to twist a sensing element. Micromechanical pixels may be arranged to form two-dimensional arrays of infrared sensitive pixels. Arrays of micromechanical pixels are applicable to imaging devices for use within the fields of security and surveillance, firefighting, automotive safety, and industrial monitoring.
摘要翻译：描述了包括改进的感测元件和改进的弯曲元件的微机械装置。感测元件包括比现有技术中目前已知的结构更薄，更轻和更扁平的多层结构。弯曲元件包括通过红外源单独响应照明以扭曲感测元件的结构。微机械像素可以被布置成形成红外敏感像素的二维阵列。微机械像素阵列适用于在安全和监视，消防，汽车安全和工业监控领域内使用的成像设备。

3. 发明授权

US07505192B1 Optical apparatus having a compound tri-state non-reciprocal rotator 失效
标题翻译：具有复合三态不可逆旋转器的光学装置
公开(公告)号：US07505192B1
公开(公告)日：2009-03-17
申请号：US11800740
申请日：2007-05-07
申请人： Jing Zhao , Guanghai Jin , Yongjun Shu
发明人： Jing Zhao , Guanghai Jin , Yongjun Shu
IPC分类号： G02F1/09
CPC分类号： G02F1/093
摘要： An optical apparatus and methods for operating on a polarization state of a light beam using a compound tri-state non-reciprocal rotator having two Faraday rotators. A first Faraday rotator rotates the polarization state into one of two partially rotated states at angles +α, −α, where α=22.5°, and the second Faraday rotates the polarization state from one of the partially rotated states into one of three fully rotated states at angles +2α, 0, −2α. A polarization selection mechanism guides light in the three fully rotated states differently to enable various devices and different modes of operation. For example, the polarization selection mechanism can generate a tri-state output in the form of two distinct output beams corresponding to two of the three fully rotated states, and an overlapping pair of output beams obtained when the compound tri-state non-reciprocal rotator produces the third of the three fully rotated states. The various methods permitted by the invention permit simple and cost-effective multicasting switches and methods.
摘要翻译：一种使用具有两个法拉第旋转器的复合三态不可逆旋转器来操作光束的偏振状态的光学装置和方法。第一个法拉第旋转器将偏振状态转换成角度为αα，αα，其中α= 22.5°的两个部分旋转状态中的一个，并且第二法拉第将偏振状态从部分旋转状态中的一个旋转到三个完全旋转状态为角度+ 2alpha，0，-2alpha。偏振选择机构以三个完全旋转的状态引导光，以使各种装置和不同的操作模式不同。例如，偏振选择机构可以产生三个完全旋转状态中的两个的两个不同的输出光束形式的三态输出，以及当复合三态不可逆旋转器产生三个完全旋转状态中的三分之一。本发明允许的各种方法允许简单且具有成本效益的多播交换机和方法。

4. 发明申请

US20090001271A1 Micromechanical device for infrared sensing 有权
标题翻译：用于红外感测的微机械装置
公开(公告)号：US20090001271A1
公开(公告)日：2009-01-01
申请号：US12072702
申请日：2008-02-27
申请人： Matthew Erdtmann , Jing Zhao , Guanghai Jin
发明人： Matthew Erdtmann , Jing Zhao , Guanghai Jin
IPC分类号： G01J5/02
CPC分类号： G01J5/02 , G01J5/023 , G01J5/40
摘要： A micromechanical device including an improved sensing element and improved bending elements is described. Sensing elements include multi-layered structures which are thinner, lighter, and flatter than structures presently known within the related arts. Bending elements include structures which separately respond to illumination by an infrared source so as to twist a sensing element. Micromechanical pixels may be arranged to form two-dimensional arrays of infrared sensitive pixels. Arrays of micromechanical pixels are applicable to imaging devices for use within the fields of security and surveillance, firefighting, automotive safety, and industrial monitoring.
摘要翻译：描述了包括改进的感测元件和改进的弯曲元件的微机械装置。感测元件包括比现有技术中目前已知的结构更薄，更轻和更扁平的多层结构。弯曲元件包括通过红外源单独响应照明以扭曲感测元件的结构。微机械像素可以被布置成形成红外敏感像素的二维阵列。微机械像素阵列适用于在安全和监视，消防，汽车安全和工业监控领域内使用的成像设备。

5. 发明授权

US06757101B2 None-mechanical dual stage optical switches 失效
标题翻译：无机械双级光开关
公开(公告)号：US06757101B2
公开(公告)日：2004-06-29
申请号：US09971285
申请日：2001-10-05
申请人： Guanghai Jin , Jing Zhao
发明人： Guanghai Jin , Jing Zhao
IPC分类号： G02B530
CPC分类号： G02B5/3083 , G02B5/3025 , G02F1/093 , G02F1/31 , Y10S372/703
摘要： The present invention provides improved optical switches in which no mechanical movement is required to direct optical pathways between plural fiber ports. Advantageously, the inventive switches incorporate two-stage polarization rotation to improve isolation depth, as well as temperature and wavelength independence. The inventive switches also incorporate light bending devices to allow two fibers to be coupled to the light beams using a single lens achieving small beam separation for compactness. In the inventive switch, an optical signal is spatially split into two polarized beams by a birefringent element, which passes through a polarization rotation device that comprises waveplates, walk-off elements, and electrically controllable polarization rotators, and recombine into an output fiber, achieving polarization independent operation. The switches of the present invention rely on electro-magnetically or electro-optically switching the beam polarizations from one state to another to rapidly direct the light path.
摘要翻译：本发明提供了改进的光开关，其中不需要机械运动来引导多个光纤端口之间的光路。有利地，本发明的开关包含两级偏振旋转以改善隔离深度以及温度和波长独立性。本发明的开关还包括光弯曲装置，以允许使用实现小光束分离的单个透镜将两个光纤耦合到光束以实现紧凑。在本发明的开关中，光信号通过双折射元件在空间上分成两个偏振光束，双折射元件通过包括波片，离散元件和电可控偏振旋转器的偏振旋转装置，并重新组合成输出光纤，实现极化独立运行。本发明的开关依靠电磁或电光切换从一个状态到另一个状态的光束极化，以快速地引导光路。

6. 发明授权

US06577430B1 Bi-directional optical switch 有权
标题翻译：双向光开关
公开(公告)号：US06577430B1
公开(公告)日：2003-06-10
申请号：US09853713
申请日：2001-05-14
申请人： Guanghai Jin , Lei Zhang , Jing Zhao
发明人： Guanghai Jin , Lei Zhang , Jing Zhao
IPC分类号： G02F109
CPC分类号： G02B6/2746 , G02B6/355 , G02F1/093 , G02F1/31
摘要： The present invention provides improved optical switches in which no mechanical movement is required to direct optical pathways between plural fiber ports and light transmission is bi-directional. Advantageously, the inventive switches permit bi-directional light transmission. The inventive switches also incorporate light bending devices to allow two fibers to be coupled to the light beams using a single lens for compactness. In the inventive switch, an optical signal is spatially split into two polarized beams by a birefringent element, which passes through a polarization rotation device that comprises waveplates, walk-off elements, and an electrically controllable polarization rotator, and recombine into an output fiber, achieving polarization independent operation. The switches of the present invention rely on electro-magnetically or electro-optically switching the beam polarizations from one state to another to rapidly direct the light path.
摘要翻译：本发明提供了改进的光开关，其中不需要机械运动来引导多个光纤端口之间的光路径，并且光传输是双向的。有利地，本发明的开关允许双向光透射。本发明的开关还包括光弯曲装置，以允许使用单个透镜紧凑地耦合到光束的两个光纤。在本发明的开关中，光信号通过双折射元件在空间上分为两个偏振光束，双折射元件通过包括波片，离散元件和电可控偏振旋转器的偏振旋转装置，并且复合到输出光纤中，实现极化无关操作。本发明的开关依靠电磁或电光切换从一个状态到另一个状态的光束极化，以快速地引导光路。

7. 发明授权

US07705309B1 Radiation detector with extended dynamic range 失效
标题翻译：辐射检测器具有延长的动态范围
公开(公告)号：US07705309B1
公开(公告)日：2010-04-27
申请号：US12082007
申请日：2008-04-08
申请人： Guanghai Jin , Lei Zhang , Jing Zhao
发明人： Guanghai Jin , Lei Zhang , Jing Zhao
IPC分类号： H01L25/00
CPC分类号： G01J5/40 , G01J5/08 , G01J5/0806 , G01J5/0831 , G01J5/0853 , G01J5/0896
摘要： A mechanical-optical transducer comprises a readout illumination source providing light having different wavelengths or different polarization states; an image sensor array for sensing the light from the readout illumination source; and a mechanical-optical device including sensing pixels whose optical property change in response to incident thermal infrared radiation, the mechanical-optical device having a reflective surface disposed to selectively reflect light from the readout illumination source to the image sensor array.
摘要翻译：机械光学换能器包括提供具有不同波长或不同极化状态的光的读出照明源; 用于感测来自读出照明源的光的图像传感器阵列; 以及机械光学装置，其包括响应于入射的热红外辐射而具有光学特性变化的感测像素，所述机械光学装置具有设置成选择性地将来自所述读出照明源的光反射到所述图像传感器阵列的反射表面。

8. 发明授权

US09256065B1 System and method for compensating thermal dependent loss in variable optical attenuators 有权
标题翻译：用于补偿可变光衰减器中热依赖损耗的系统和方法
公开(公告)号：US09256065B1
公开(公告)日：2016-02-09
申请号：US14529602
申请日：2014-10-31
申请人： Guanghai Jin , Luzhong Yin
发明人： Guanghai Jin , Luzhong Yin
IPC分类号： G02B26/02 , G02B1/00 , G02B1/02 , H01C7/04
CPC分类号： G02B26/023 , G02B6/00 , G02B7/008
摘要： A system having a MEMS variable optical attenuator (VOA) that has an improved optical shutter for regulating the optical power of an optical signal by partially intercepting incident light beams and a negative temperature coefficient component that is electrical connected in series with a voltage source that drives the MEMS variable optical attenuator (VOA) is disclosed.
摘要翻译：一种具有MEMS可变光衰减器（VOA）的系统，其具有改进的光学快门，用于通过部分地截取入射光束来调节光信号的光功率，并且负温度系数分量与驱动的电压源串联电连接公开了MEMS可变光衰减器（VOA）。

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