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公开(公告)号：US07099069B2
公开(公告)日：2006-08-29
申请号：US10498868
申请日：2001-12-18
CPC分类号： G02F1/0305
摘要： An electro-optic (EO) device having a high-resistivity semiconducting crystal and a method of operating such a device. The local shielding of the externally applied field lowers the EO effect, which can be partially or completely inhibited particularly in the low-frequency regime, i.e., less than about 105 Hz. By holding a high-resistivity semiconducting crystal at a suitable temperature, EO response and efficiency are improved, in particular for light signals that are non-modulated or modulated at low frequencies. Preferably, the temperature at which the semiconducting crystal is held during functioning is between 50 and 150° C. Enhancement of the EO effect has been demonstrated also for EO devices operating at relatively large optical powers, i.e., larger than about 0.1 mW.
摘要翻译： 具有高电阻率半导体晶体的电光（EO）器件和操作这种器件的方法。 外部施加的场的局部屏蔽降低了EO效应，这可以部分地或完全地被抑制，特别是在低频状态下，即小于约10Hz。 通过在合适的温度下保持高电阻率半导体晶体，EO响应和效率得到改善，特别是对于在低频下未调制或调制的光信号。 优选地，半导体晶体在功能期间保持的温度为50-150℃。对于在相对大的光焦度（即大于约0.1mW）下操作的EO器件也已经证明了EO效应的增强。
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公开(公告)号：US07209607B2
公开(公告)日：2007-04-24
申请号：US10497009
申请日：2001-11-30
IPC分类号： G02B6/26
CPC分类号： H04Q11/0005 , G02B6/3542 , G02B6/3546 , G02B6/356 , G02B6/3578 , G02F1/33 , H04Q2011/0024 , H04Q2011/0035 , H04Q2011/0058
摘要： Optical switch matrix having at least an input matrix port defining at least a row of the matrix, a plurality of output matrix ports defining columns of the matrix, a plurality of switching elements, each one being disposed at the intersection of at least one row and one of the columns. Each switch element in a predetermined position of the matrix, in an activated condition, connects an input matrix port to an output matrix port, the ports being correspondents respectively to the predetermined position of the matrix.
摘要翻译： 光开关矩阵具有至少限定矩阵的至少一行的输入矩阵端口，限定矩阵列的多个输出矩阵端口，多个开关元件，每个开关元件设置在至少一行和 其中一列。 矩阵的预定位置中的每个开关元件处于激活状态，将输入矩阵端口连接到输出矩阵端口，端口分别对应于矩阵的预定位置。
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公开(公告)号：US06872794B2
公开(公告)日：2005-03-29
申请号：US10268717
申请日：2002-10-11
申请人： Andrea Zappettini , Silvia Maria Pietralunga , Yuri Dubitsky , Antonio Zaopo , Mario Martinelli
发明人： Andrea Zappettini , Silvia Maria Pietralunga , Yuri Dubitsky , Antonio Zaopo , Mario Martinelli
CPC分类号： C08L65/02 , C08G61/02 , C08G2261/312 , G02F1/3616
摘要： The invention relates to new polymers useful in non linear optical (NLO) applications, particularly as optical waveguide materials.
摘要翻译： 本发明涉及可用于非线性光学（NLO）应用的新聚合物，特别是作为光波导材料。
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4.发明授权Method and device for stabilizing the state of polarization of optical radiation 有权用于稳定光辐射极化状态的方法和装置公开(公告)号：US07528360B2
公开(公告)日：2009-05-05
申请号：US11661416
申请日：2005-09-06
CPC分类号： G02B6/2793 , G02B6/2713 , G02B6/2766 , G02B27/286 , G02B27/288 , G02F1/0136 , H04J14/06
摘要： A polarization stabilizing device and method based on controlling the phase retardations of a pair of variable rotators with an optically interposed quarter-wave plate, with a controller such that the first of the variable rotators has its phase retardation switched between first and second values whenever the phase retardation of the second of the variable rotators reaches an upper or a lower limit. The upper and lower limits of the second rotator and the first and second values of the first rotator are chosen so that discontinuities in the power of the output optical radiation are avoided when the first variable rotator is switched, thereby providing endless polarization stabilization using rotators that themselves may have limited retardation ranges.
摘要翻译： 一种偏振稳定装置和方法，其基于用光学插入的四分之一波片控制一对可变旋转器的相位延迟，其中控制器使得第一可变旋转器的相位延迟在第一和第二值之间切换， 第二可变转子的相位延迟达到上限或下限。 选择第二旋转器的上限和下限以及第一旋转器的第一和第二值，使得当第一可变旋转器被切换时避免输出光辐射的功率的不连续性，从而使用旋转器提供无限极化稳定 它们本身可能具有有限的延迟范围。
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公开(公告)号：US07307722B2
公开(公告)日：2007-12-11
申请号：US10485221
申请日：2002-07-30
IPC分类号： G01J4/00
CPC分类号： G02F1/0136
摘要： A polarization stabilizing device and method based on controlling the phase retardation of a pair of variable phase retarders with a controller such that the first of the variable retarders has its phase retardation switched between first and second values whenever the phase retardation of the second of the variable retarders reaches an upper or a lower limit. The upper and lower limits of the second retarder and the first and second values of the first retarder are chosen so that discontinuities in the power of the output optical signal are avoided when the first variable retarder is switched, thereby providing endless polarization stabilization using phase retarders that themselves have only limited retardation ranges.
摘要翻译： 一种偏振稳定装置和方法，其基于通过控制器控制一对可变相位延迟器的相位延迟，使得第一可变延迟器的第一和第二值之间的相位延迟在第一和第二值之间切换， 缓凝剂达到上限或下限。 选择第二延迟器的上限和下限以及第一延迟器的第一值和第二值，使得当第一可变延迟器被切换时避免输出光信号的功率的不连续性，由此使用相位延迟器提供无限极化稳定 它们本身只有有限的延迟范围。
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公开(公告)号：US06181429B2
公开(公告)日：2001-01-30
申请号：US09218297
申请日：1998-12-22
IPC分类号： G01B902
CPC分类号： G01N21/45
摘要： There is provided a method and apparatus for measuring the optical properties of bulk samples. A probe laser beam is fed into the two arms of the apparatus, a reference arm and a measurement arm, both of which contain optical fiber to conduct the laser lights. The measurement arm includes a free space area for mounting a sample to be tested. The probe beam is directed into the sample in free space. The sample also receives light in free space, rather than via the optical fiber, from a second, pump laser. The interaction of the sample and the pump laser affect the optical properties of the sample. This change in optical properties can be detected by comparing the output signals from the measurement and reference arms.
摘要翻译： 提供了用于测量散装样品的光学性质的方法和装置。 探针激光束被馈送到装置的两个臂中，一个参考臂和一个测量臂，它们都包含用于传导激光的光纤。 测量臂包括用于安装待测样品的自由空间区域。 探头光束在自由空间中被引导到样品中。 样品也从第二个泵激光器接收自由空间而不是通过光纤的光。 样品和泵浦激光器的相互作用影响样品的光学性质。 可以通过比较测量和参考臂的输出信号来检测光学特性的这种变化。
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公开(公告)号：US08975508B2
公开(公告)日：2015-03-10
申请号：US14342169
申请日：2012-08-22
申请人： Giorgio Grasso , Francesco Morichetti , Silvia Maria Pietralunga , Aldo Righetti , Maria Chiara Ubaldi
发明人： Giorgio Grasso , Francesco Morichetti , Silvia Maria Pietralunga , Aldo Righetti , Maria Chiara Ubaldi
IPC分类号： H01L31/054 , H01L31/052 , F24J2/06 , F24J2/12 , G02B19/00 , H01L31/0232
CPC分类号： H01L31/0525 , F24S23/10 , F24S23/71 , G02B19/0028 , H01L31/02327 , H01L31/054 , H01L31/0547 , Y02E10/42 , Y02E10/52
摘要： A solar concentrator (1) having a longitudinal axis of extension (3) and a cross-section at right angles to the longitudinal axis substantially equal for a continuum of cross-sections, and comprising a reflective system (6) and a refractive system (7), the reflective system forming an optical inlet (8) and an optical outlet (9) and comprising two semi-portions positioned specularly relative to the plane of symmetry, where the cross-section profile of the refractive system is a triangle (11) having a base (12) at the optical outlet (9) and apex (13) on the axis of symmetry (5), where the cross-section profile of each semi-portion of the reflective system comprises a segment (18) in the shape of a parabola having an axis (20) forming with the axis of symmetry an acceptance angle (θ0) greater than zero and a focus (F) on the axis of symmetry, and where the focus falls inside the triangle.
摘要翻译： 一种具有延伸长度（3）的纵向轴线的横截面和与纵向轴线成直角的横截面基本相等于连续的横截面的太阳能集中器（1），并且包括反射系统（6）和折射系统 7），反射系统形成光学入口（8）和光学出口（9），并且包括相对于对称平面镜面定位的两个半部分，其中折射系统的横截面轮廓是三角形（11 ）在光学出口（9）处具有基部（12）和在对称轴线（5）上的顶点（13），其中反射系统的每个半部分的横截面轮廓包括一个（18） 抛物线的形状具有轴线（20），其以对称轴形成大于零的接受角（＆amp;θ）和对称轴上的焦点（F），并且其中焦点落在三角形内。
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公开(公告)号：US20140209148A1
公开(公告)日：2014-07-31
申请号：US14342169
申请日：2012-08-22
申请人： Giorgio Grasso , Francesco Morichetti , Silvia Maria Pietralunga , Aldo Righetti , Maria Chiara Ubaldi
发明人： Giorgio Grasso , Francesco Morichetti , Silvia Maria Pietralunga , Aldo Righetti , Maria Chiara Ubaldi
IPC分类号： H01L31/052 , G02B19/00 , H01L31/0232
CPC分类号： H01L31/0525 , F24S23/10 , F24S23/71 , G02B19/0028 , H01L31/02327 , H01L31/054 , H01L31/0547 , Y02E10/42 , Y02E10/52
摘要： A solar concentrator (1) having a longitudinal axis of extension (3) and a cross-section at right angles to the longitudinal axis substantially equal for a continuum of cross-sections, and comprising a reflective system (6) and a refractive system (7), the reflective system forming an optical inlet (8) and an optical outlet (9) and comprising two semi-portions positioned specularly relative to the plane of symmetry, where the cross-section profile of the refractive system is a triangle (11) having a base (12) at the optical outlet (9) and apex (13) on the axis of symmetry (5), where the cross-section profile of each semi-portion of the reflective system comprises a segment (18) in the shape of a parabola having an axis (20) forming with the axis of symmetry an acceptance angle (θ0) greater than zero and a focus (F) on the axis of symmetry, and where the focus falls inside the triangle.
摘要翻译： 一种具有延伸长度（3）的纵向轴线的横截面和与纵向轴线成直角的横截面基本相等于连续的横截面的太阳能集中器（1），并且包括反射系统（6）和折射系统 7），反射系统形成光学入口（8）和光学出口（9），并且包括相对于对称平面镜面定位的两个半部分，其中折射系统的横截面轮廓是三角形（11 ）在光学出口（9）处具有基部（12）和在对称轴线（5）上的顶点（13），其中反射系统的每个半部分的横截面轮廓包括一个（18） 抛物线的形状具有轴线（20），其以对称轴形成大于零的接受角（＆amp;θ）和对称轴上的焦点（F），并且其中焦点落在三角形内。
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公开(公告)号：US07324267B2
公开(公告)日：2008-01-29
申请号：US10518855
申请日：2002-06-28
CPC分类号： G02F1/3536 , G02F1/3534 , G02F1/3538 , G02F2/004 , G02F2001/3542 , G02F2201/15 , G02F2201/16 , G02F2201/17 , G02F2201/307 , G02F2202/32 , G02F2203/15
摘要： A wavelength converter device is provided for generating a converted radiation at frequency ωg through interaction between at least one signal radiation at frequency ωs and at least one pump radiation at frequency ωp, including an input for the at least one signal radiation at frequency ωs, a pump light source for generating the at least one pump radiation at frequency ωp, an output for taking out the converted radiation at frequency ωg, a structure for transmitting the signal radiation, including two optical resonators having a non-linear material, having an optical length of at least 40*λ/2, λ being the wavelength of the pump radiation, and resonating at the pump, signal and converted frequencies ωp, ωs and ωg, wherein by propagating through the structure, the pump and signal radiation generate the converted radiation by non-linear interaction within the optical resonators.
摘要翻译： 提供了一种波长转换器装置，用于通过至少一个频率ω1的信号辐射与至少一个频率ω的泵浦辐射之间的相互作用产生频率ωω的转换的辐射 包括用于频率ω3的至少一个信号辐射的输入，泵浦光源，用于产生频率ω2的至少一个泵浦辐射 ，用于取出频率ωga转换的辐射的输出，用于传输信号辐射的结构，包括具有非线性材料的两个光学谐振器，光学长度为 至少40 *λ/ 2，λ是泵浦辐射的波长，并且在泵谐振，信号和转换频率ωω，ωω和ωω 其中通过传播通过结构，泵和信号辐射通过非线性相互作用产生转换的辐射 在光谐振器内。
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