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    • 3. 发明申请
    • SNR ENHANCEMENT IN MODULATING RETROREFLECTOR OPTICAL COMMUNICATION LINKS
    • SNR增强调制反馈器光通信链路
    • US20090285583A1
    • 2009-11-19
    • US12121626
    • 2008-05-15
    • Bruce K. WinkerBing WenJian Ma
    • Bruce K. WinkerBing WenJian Ma
    • H04B10/00
    • H04B10/1125H04B10/2587
    • An optical communication system may include a light transmission unit transmitting a light beam having a first polarization, a quarter waveplate to receive the light beam and to modify the light beam to have a second polarization, and a retroreflector to receive the light beam from the quarter waveplate and reflect the light beam to the quarter waveplate, which modifies the light beam to have a third polarization. The optical communication system may also include a half waveplate to modify the first polarization such that the first polarization is about 90 degrees rotated compared to the third polarization, and a polarizer to pass the light beam having the third polarization and to block most of the light beam having the first polarization.
    • 光通信系统可以包括透光单元,透光单元透射具有第一偏振的光束,四分之一波片以接收光束并修改光束以具有第二偏振;以及后向反射器,用于接收来自四分之一的光束 波片并将光束反射到四分之一波片,其将光束修改为具有第三偏振。 光通信系统还可以包括半波片,以修改第一偏振,使得第一偏振与第三偏振相比旋转大约90度;以及偏振器,以通过具有第三偏振的光束并阻止大部分光 具有第一极化的光束。
    • 4. 发明授权
    • SNR enhancement in modulating retroreflector optical communication links
    • 调制后向反射器光通信链路的SNR增强
    • US09203513B2
    • 2015-12-01
    • US12121626
    • 2008-05-15
    • Bruce K. WinkerBing WenJian Ma
    • Bruce K. WinkerBing WenJian Ma
    • H04B10/00H04B10/112H04B10/2587
    • H04B10/1125H04B10/2587
    • An optical communication system may include a light transmission unit transmitting a light beam having a first polarization, a quarter waveplate to receive the light beam and to modify the light beam to have a second polarization, and a retroreflector to receive the light beam from the quarter waveplate and reflect the light beam to the quarter waveplate, which modifies the light beam to have a third polarization. The optical communication system may also include a half waveplate to modify the first polarization such that the first polarization is about 90 degrees rotated compared to the third polarization, and a polarizer to pass the light beam having the third polarization and to block most of the light beam having the first polarization.
    • 光通信系统可以包括透光单元,透光单元透射具有第一偏振的光束,四分之一波片以接收光束并修改光束以具有第二偏振;以及后向反射器,用于接收来自四分之一的光束 波片并将光束反射到四分之一波片,其将光束修改为具有第三偏振。 光通信系统还可以包括半波片,以修改第一偏振,使得第一偏振与第三偏振相比旋转大约90度;以及偏振器,以通过具有第三偏振的光束并阻止大部分光 具有第一极化的光束。
    • 8. 发明授权
    • Liquid crystal adaptive coupler for steering a light beam relative to a light-receiving end of an optical waveguide
    • 用于相对于光波导的光接收端转向光束的液晶自适应耦合器
    • US06832028B2
    • 2004-12-14
    • US10267282
    • 2002-10-08
    • Dong-Feng GuDonald B. TaberBruce K. Winker
    • Dong-Feng GuDonald B. TaberBruce K. Winker
    • G02B626
    • G02F1/292G02B6/32G02B6/351G02B6/3556G02F1/1392
    • An apparatus for optically coupling a light source with a light-receiving end face of an optical waveguide comprises a lens for focusing a light beam emitted from the light source at a focal point on the light-receiving end face of the optical waveguide. An adaptive coupler, positioned in the optical path, is responsive to a beam steering control signal for steering and aligning the focal point relative to the light-receiving end face of the optical waveguide. In one form, the adaptive coupler comprises a pair of transparent substrates having confronting, parallel inner faces, the inner face of one of the pair of substrates carrying a beam intercepting, optically transparent, constant potential electrode and the inner face of the other of the pair of substrates carrying an electrically resistive, beam intercepting, optically transparent film. A pair of spaced apart electrodes in electrical contact with the film apply a linear voltage gradient along the film. An electro-optical phase shifting medium is disposed between the confronting inner faces of the substrates. The application of selected voltages to the electrodes creates a linear voltage gradient along the aforementioned film on the inner face of the one substrate resulting in a linearly varying electric field between that film and the constant potential electrode creating a corresponding linear variation in the refractive index of the liquid crystal medium and a linear wavefront tilt in the intercepting optical beam.
    • 用于将光源与光波导的光接收端面光学耦合的装置包括用于将从光源发射的光束聚焦在光波导的光接收端面上的焦点处的透镜。 位于光路中的自适应耦合器响应于光束转向控制信号,用于相对于光波导的光接收端面转向和对准焦点。 在一种形式中,自适应耦合器包括一对具有相对的平行内表面的透明基板,一对基板中的一个基板的内表面承载光束拦截,光学透明的恒定电位电极,另一个的内表面 一对基板承载电阻,光束截取的光学透明膜。 与膜电接触的一对间隔开的电极沿膜施加线性电压梯度。 电光相移介质设置在基板的相对的内表面之间。 将选择的电压施加到电极在一个衬底的内表面上沿着上述膜产生线性电压梯度,导致该膜和恒电位电极之间线性变化的电场产生相应的线性变化 液晶介质和截取光束中的线性波前倾斜。
    • 10. 发明授权
    • Compact high-speed thin micromachined membrane deformable mirror
    • 紧凑型高速薄型微加工膜可变形镜
    • US07999213B2
    • 2011-08-16
    • US12241993
    • 2008-09-30
    • Bruce K. WinkerYu-Hua K LinSridhar NarayanaswamyBing Wen
    • Bruce K. WinkerYu-Hua K LinSridhar NarayanaswamyBing Wen
    • G01J1/20G02B7/188
    • G02B26/06G02B26/0825
    • Provided is a compact, high-speed deformable mirror for use with an adaptive optic. The mirror or wavefront correction device corrects and/or compensates for wavefront aberrations present in a wavefront received by the optics. The mirror includes a deformable membrane which may be made of a semiconductive, metallic or insulating material. Positioned in close proximity to a front surface of the membrane is a transparent conductor, which may be covered by a window having an anti-reflective coating. A plurality of electrostatic actuators is located in close proximity to a back surface of the membrane, the conductor and actuators separated by a gap of approximately 10 μm. In operation, a bias voltage is applied to the transparent conductor and an actuator voltage is applied to the plurality of actuators. The resultant voltage differential across the membrane defines the amount of membrane deformation, which in turn compensates for distortions in a subsequently reflected wavefront.
    • 提供了一种紧凑型高速可变形镜,可与自适应光学元件一起使用。 镜或波前校正装置校正和/或补偿由光学器件接收的波前中存在的波前像差。 反射镜包括可由半导体,金属或绝缘材料制成的可变形膜。 靠近膜的前表面定位的是透明导体,其可被具有防反射涂层的窗口覆盖。 多个静电致动器位于膜的后表面附近,导体和致动器由大约10μm的间隙隔开。 在操作中,向透明导体施加偏置电压,并且向多个致动器施加致动器电压。 跨过膜的合成电压差定义了膜变形的量,其又补偿随后反射的波前的失真。