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106 条记录 (耗时 0.034 秒)

    Dispersion compensator and optical amplifier
    52.
    发明授权
    Dispersion compensator and optical amplifier 失效
    色散补偿器和光放大器

    公开(公告)号：US5596448A

    公开(公告)日：1997-01-21

    申请号：US492899

    申请日：1995-06-20

    申请人： Hiroshi Onaka ,  Motoyoshi Sekiya

    发明人： Hiroshi Onaka ,  Motoyoshi Sekiya

    IPC分类号： G02F1/35 ,  G02B6/34 ,  H01S3/067 ,  H01S3/23 ,  H01S3/00 ,  G02B6/26

    CPC分类号： G02B6/274 ,  G02B6/278 ,  G02B6/29374 ,  H01S3/06758 ,  H01S3/06712 ,  H01S3/06725 ,  H01S3/2333

    摘要： A dispersion compensator of the present invention includes a dispersion compensation fiber and a polarization conversion mirror. The dispersion compensation fiber has color dispersion of a sign opposite to the sign of the color dispersion of the optical fiber transmission line, and the length thereof is set so as to conform to the value of the color dispersion of the optical fiber transmission line. Light propagating in the optical fiber transmission line then propagates in the dispersion compensation fiber from a first end toward a second end of it and is supplied to the polarization conversion mirror. The light supplied to the polarization conversion mirror is converted into light of a polarization condition orthogonal and time-reversed to the polarization condition of the light supplied to the polarization conversion mirror, and propagates in the dispersion compensation fiber from the second end toward the first end of it. This enables compensation not only for color dispersion but also for polarization mode dispersion.

    摘要翻译： 本发明的色散补偿器包括色散补偿光纤和偏振转换镜。 色散补偿光纤具有与光纤传输线的色散符号相反的符号的色散，并且其长度被设定为符合光纤传输线的色散值。 然后在光纤传输线中传播的光在色散补偿光纤中从第一端向第二端传播，并被提供给偏振转换镜。 提供给偏振转换镜的光被转换为与提供给偏振转换镜的光的偏振状态正交并时间反转的偏振条件的光，并且在色散补偿光纤中从第二端向第一端传播 的。 这不仅可以补偿色散，还可以进行偏振模色散。

    Optical fiber interference wavelength/frequency detection apparatus which eliminates a movable element
    53.
    发明授权
    Optical fiber interference wavelength/frequency detection apparatus which eliminates a movable element 失效
    消除可移动元件的光纤干涉波长/频率检测装置

    公开(公告)号：US5426502A

    公开(公告)日：1995-06-20

    申请号：US138083

    申请日：1993-10-20

    申请人： Hideyuki Miyata ,  Hiroshi Onaka ,  Yoshihto Onoda

    发明人： Hideyuki Miyata ,  Hiroshi Onaka ,  Yoshihto Onoda

    IPC分类号： G01J9/00 ,  G01J9/02 ,  G01B9/02

    CPC分类号： G01J9/02

    摘要： The invention provides an optical wavelength/frequency detection apparatus for detecting a wavelength of a frequency of a laser source, which is improved in that it eliminates a movable element to achieve a high degree of long term reliability and can detect a wavelength or a frequency of light with a high degree of accuracy with a high resolution while it is small in size. The optical wavelength/frequency detection apparatus comprises a pair of optical fibers for individually propagating two optical outputs of a measurement light splitting optical coupler, a driver for varying the relative difference between optical path lengths of two beams of light propagated in the optical fibers, a light receiver for receiving interference light of the measurement light from a measurement light combining optical coupler, and a counter for counting the number of interference pulses of the measurement light received by the light receiver. Measurement light information from the counter and reference light information are processed by comparison calculation processing to calculate a wavelength or a frequency of the measurement light.

    摘要翻译： 本发明提供了一种用于检测激光源频率的波长的光波长/频率检测装置，其改进在于消除可移动元件以实现高度的长期可靠性，并且可以检测波长或频率 光线具有高精度，高分辨率，而体积小。 光波长/频率检测装置包括用于分别传播测量分光光耦合器的两个光输出的一对光纤，用于改变在光纤中传播的两束光的光路长度之间的相对差的驱动器， 用于接收来自测量光组合光耦合器的测量光的干涉光的光接收器，以及用于对由光接收器接收的测量光的干扰脉冲数进行计数的计数器。 通过比较计算处理来处理来自计数器的测量光信息和参考光信息，以计算测量光的波长或频率。

    Process for producing zirconium sols and gels, and process for producing zirconia using the same
    55.
    发明授权
    Process for producing zirconium sols and gels, and process for producing zirconia using the same 失效
    锆溶胶和凝胶的制造方法以及使用其制造氧化锆的方法

    公开(公告)号：US4863706A

    公开(公告)日：1989-09-05

    申请号：US118940

    申请日：1987-11-10

    申请人： Takeo Wada ,  Hiroshi Onaka ,  Hideaki Matsuda

    发明人： Takeo Wada ,  Hiroshi Onaka ,  Hideaki Matsuda

    IPC分类号： C01B35/06 ,  C01B35/10 ,  C01B35/12 ,  C01B35/14 ,  C01G25/00 ,  C01G25/02 ,  C04B35/486 ,  C04B35/624

    CPC分类号： C04B35/624 ,  C01B35/06 ,  C01B35/10 ,  C01B35/12 ,  C01B35/146 ,  C01G25/006 ,  C01G25/02 ,  C04B35/486 ,  C01P2002/02 ,  C01P2002/72 ,  C01P2004/10 ,  C01P2004/20 ,  C01P2004/52 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/80

    摘要： A process for producing acidic boratozirconium chloride sols which comprises: reacting a zirconium compound with a boron compound in molar ratios of B/Zr of 0.3-1.2 together with a compound of a metal M, the metal M being selected from the group consisting of divalent, trivalent, tetravalent and pentavalent metals in molar ratios of M/Zr of about 0.01-1 in water in the presence of chloride ions in molar ratios of Cl/Zr of not less than about 1.The acidic boratozirconium chloride sol may be converted to basic boratozirconium sols by reacting the acidic sol with a basic carbonate compound such as ammonium carbonate.The sols, either acidic or basic, are readily gelled by contact with a dehydration solvent such as methanol or actone.The gel is calcined at relatively low temperatures to provide zirconia which is either very pure or stabilized in varied degrees.

    摘要翻译： 一种酸性硼酸锆酸盐溶胶的制造方法，其特征在于，使锆化合物与B / Zr的摩尔比为0.3〜1.2的硼化合物与金属M的化合物反应，金属M选自二价 ，在Cl / Zr摩尔比不小于约1的氯离子存在下，摩尔比为约0.01-1的M / Zr摩尔比为三价，四价和五价金属。酸性硼酸锆氯化物溶胶可以转化为 碱性硼酸锆溶胶通过使酸性溶胶与碱式碳酸酯化合物如碳酸铵反应。 酸性或碱性溶胶通过与脱水溶剂如甲醇或活性酮接触而容易凝胶化。 凝胶在相对较低的温度下煅烧，以提供非常纯净或稳定不同程度的氧化锆。

    Optical transmission apparatus, wavelength division multiplexing optical communication system and optical transmission method
    58.
    发明授权
    Optical transmission apparatus, wavelength division multiplexing optical communication system and optical transmission method 有权
    光传输装置，波分复用光通信系统和光传输方法

    公开(公告)号：US08213798B2

    公开(公告)日：2012-07-03

    申请号：US12688137

    申请日：2010-01-15

    申请人： Hiroki Ooi ,  Hiroshi Onaka ,  George Ishikawa

    发明人： Hiroki Ooi ,  Hiroshi Onaka ,  George Ishikawa

    IPC分类号： H04J14/02

    CPC分类号： H04B10/2557 ,  H04J14/02

    摘要： An optical transmission apparatus for suppressing deterioration of transmission quality due to XPM in a wavelength division multiplexing optical communication system in which an intensity modulation optical signal and a phase modulation optical signal exist in a mixed form. The apparatus has an intensity inversion signal light output section which outputs light having an intensity pattern obtained by inverting intensity changes of the intensity modulation optical signal near a wavelength of the intensity modulation optical signal in arrangement on wavelength axis of optical wavelengths that can be multiplexed as a wavelength division multiplexed signal as intensity inversion signal light, and a wavelength division multiplexed optical signal output unit which wavelength-division-multiplexes the intensity modulation optical signal, the phase modulation optical signal and light from the intensity inversion signal light output section and outputs a wavelength division multiplexed optical signal.

    摘要翻译： 一种光传输装置，用于在混合形式存在强度调制光信号和相位调制光信号的波分复用光通信系统中抑制由XPM导致的传输质量的恶化。 该装置具有强度反转信号光输出部，其输出具有通过将强度调制光信号的波长附近的强度调制光信号的强度变化反转的强度图形输出的光配置在可以多路复用的光波长的波长轴上 波分多路复用信号作为强度反转信号光，以及波分复用光信号输出单元，其对强度调制光信号，相位调制光信号和强度反转信号光输出部分的光进行波分复用，并输出 波分复用光信号。

    Encryption method, cryptogram decoding method, encryptor, cryptogram decoder, and communication system
    60.
    发明授权
    Encryption method, cryptogram decoding method, encryptor, cryptogram decoder, and communication system 有权
    加密方法，密码解码方式，加密方式，密码解码方式和通信方式

    公开(公告)号：US07471790B2

    公开(公告)日：2008-12-30

    申请号：US11439367

    申请日：2006-05-24

    申请人： Setsuo Yoshida ,  Osamu Hirota ,  Hiroshi Onaka

    发明人： Setsuo Yoshida ,  Osamu Hirota ,  Hiroshi Onaka

    IPC分类号： H04L9/28 ,  H04K1/00

    CPC分类号： H04L9/0852 ,  H04L9/0662 ,  H04L9/0891 ,  H04L2209/08

    摘要： An encryption technique having a greater encryption strength than conventional mathematical encryption by using classic physical random numbers etc., including a step for modulating one-bit input data into a coded signal by associating it with a discrete value of at least two bits determined by pseudo random numbers and physical random numbers and a step for channel-coding and outputting the coded signal, wherein 1) the coded signal can be demodulated into the input data by the pseudo random number, 2) the number of sets of input data, pseudo random number, and physical random number corresponding to a particular discrete value is equal for two values of the input data, and 3) the number of sets of pseudo random number and physical random number corresponding to respective values of the input data and respective values of the discrete value is equally associated also with any set of them.

    摘要翻译： 一种通过使用经典的物理随机数等具有比常规数学加密更大的加密强度的加密技术，包括通过将一位输入数据与由伪伪确定的至少两个比特的离散值相关联来将一位输入数据调制成编码信号的步骤 随机数和物理随机数，以及用于信道编码和输出编码信号的步骤，其中1）编码信号可以通过伪随机数解调为输入数据，2）输入数据集合的数目，伪随机数 对应于特定离散值的数量和物理随机数对于输入数据的两个值是相等的，以及3）与输入数据的各个值对应的伪随机数和物理随机数的集合的数量以及相应的值 离散值也与它们的任意集合相同。