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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：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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3.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：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：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：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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公开(公告)号：US06941032B2
公开(公告)日：2005-09-06
申请号：US09883241
申请日：2001-06-19
CPC分类号： G02B6/2746 , G02B6/126 , G02B6/34 , G02B27/286 , H04B10/2572
摘要： In an interferometer configuration, a retarder in the form of a half-wave plate (125) and a phase shifter in the form of a glass plate (120) are arranged in one arm (114). The phase shifter provides an optical path difference between the interferometer arms which needs to be greater than the coherence length of the input light to be polarization stabilized. A polarizer in the form of a linear polarizer (118) aligned at 45° to the half-wave plate is arranged across both interferometer arms (114 & 116). Polarization stabilization action is achieved by the retarder in combination with the polarizer. More specifically, for at least one input polarization state, the polarization states in the two interferometer arms are rendered orthogonal by the retarder, the polarizer being aligned to allow only one of the two orthogonal states to be transmitted, the other being absorbed. The device is expected to find application for WDM networks based on broadband sources, such as superluminescent diodes. The device is also expected to be useful for providing a front-end polarization stabilization of the signal supplied to optical elements that are sensitive to the polarization state of their input. Examples of such elements are semiconductor optical amplifiers, integrated optical splitters and electro-optical switches.
摘要翻译： 在干涉仪配置中，在一个臂（114）中布置了半波片（125）形式的延迟器和玻璃板（120）形式的移相器。 移相器提供干涉仪臂之间的光程差，其需要大于要偏振稳定的输入光的相干长度。 以与半波片成45°的方式对齐的线性偏振器（118）形式的偏振器布置在两个干涉仪臂（114和116）之间。 偏振稳定作用通过缓凝剂与偏振器的组合来实现。 更具体地，对于至少一个输入偏振状态，两个干涉仪臂中的偏振状态由延迟器使其正交，偏振器被对准以允许仅传递两个正交状态中的一个，另一个被吸收。 该设备预计可以应用于基于宽带光源的WDM网络，如超发光二极管。 该装置还可用于提供对其输入的极化状态敏感的提供给光学元件的信号的前端偏振稳定。 这些元件的示例是半导体光放大器，集成光分路器和电光开关。
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公开(公告)号：US08019232B2
公开(公告)日：2011-09-13
申请号：US10592032
申请日：2004-03-10
IPC分类号： H04B10/04
CPC分类号： H04B10/505 , H04B10/5055 , H04B10/5561
摘要： A method of phase modulating optical radiation by the steps of phase modulating the optical radiation by using a modulator having an extinction ratio in order to provide a multilevel phase shift key signal, and applying to each optical pulse a phase-shift having an absolute value depending on the extinction ratio and a sign depending, for each of the optical pulses, on the respective optical phase value. An apparatus implementing the method is also disclosed.
摘要翻译： 通过使用具有消光比的调制器对光辐射进行相位调制以便提供多电平相移键信号的步骤来相位调制光辐射的方法，并且向每个光脉冲施加具有绝对值的绝对值的相移 对于每个光脉冲，消光比和相应的光学相位值的符号。 还公开了一种实现该方法的装置。
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9.发明授权Optical device and a method of processing a digital optical signal in parallel and in free space 失效光学装置以及在自由空间中并行处理数字光信号的方法公开(公告)号：US06292280B1
公开(公告)日：2001-09-18
申请号：US09096387
申请日：1998-06-12
IPC分类号： G06E100
CPC分类号： H04B10/11 , H04B10/1141 , H04Q11/0003 , H04Q2011/0015 , H04Q2011/002 , H04Q2011/0024 , H04Q2011/0026 , H04Q2011/0035 , H04Q2011/0039 , H04Q2011/0041
摘要： An optical device is provided for processing a digital optical signal in parallel and in free space. A device consistent with the invention provides for inputting a digital optical signal in guided propagation, converting the digital optical signal to n digital optical signals in guided propagation, and converting the n digital optical signals to n digital optical signals in free space. In addition, the invention provides for selecting a bit preselected from the at least one temporal series of n bits of each of the n digital optical signals, modifying optically, at least one bit of the spatial figure of the n bits, and outputting the at least one bit of the spatial figure of n bits.
摘要翻译： 提供一种用于并行和自由空间处理数字光信号的光学装置。 符合本发明的装置提供了在导向传播中输入数字光信号，将数字光信号转换成n导数传播中的数字光信号，并将n个数字光信号转换成自由空间中的n个数字光信号。 另外，本发明提供从n个数字光信号中的每一个n帧的至少一个时间序列预先选择的位，光学修改n位空间图的至少一位，并输出在 n位的空间图的至少一位。
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公开(公告)号：US20140199066A1
公开(公告)日：2014-07-17
申请号：US14129903
申请日：2012-06-15
申请人： Paolo Martelli , Alberto Gatto , Mario Martinelli
发明人： Paolo Martelli , Alberto Gatto , Mario Martinelli
IPC分类号： H04B10/2581 , H04J14/04
CPC分类号： H04B10/2581 , G02B6/4206 , H04J14/04
摘要： An optical communication system is disclosed. The optical communication system comprises an optical transmitter and a substantially circular multi-mode optical fiber. The optical transmitter comprises a generator of at least two free space circular vortices and comprises an optical element configured to receive the at least two free space circular vortices and to couple them to an input facet of the optical fiber. The optical fiber is configured to receive at the input facet the at least two free space circular vortices and is configured to generate therefrom at least two corresponding guided circular vortices having respective propagation constants, wherein the values of the propagation constants at a defined frequency are different each other.
摘要翻译： 公开了一种光通信系统。 光通信系统包括光发射机和基本圆形的多模光纤。 光发射器包括至少两个自由空间圆形涡流的发生器，并且包括被配置为接收至少两个自由空间圆形涡流并将它们耦合到光纤的输入小面的光学元件。 光纤被配置为在输入面处接收至少两个自由空间圆形涡流，并且被配置为由其产生具有相应传播常数的至少两个对应的导向圆形涡流，其中在定义的频率处的传播常数的值是不同的 彼此。
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