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90 条记录 (耗时 0.031 秒)

    Optical fiber interference wavelength/frequency detection apparatus which eliminates a movable element
    62.
    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。

    Method of wavelength selection control and wavelength variable filter device
    66.
    发明授权
    Method of wavelength selection control and wavelength variable filter device 失效
    波长选择控制方法和波长可变滤波器装置

    公开(公告)号：US07349632B2

    公开(公告)日：2008-03-25

    申请号：US11143663

    申请日：2005-06-03

    申请人： Masaji Noguchi ,  Toshihisa Kyouno ,  Tomohiro Ueno ,  Hideyuki Miyata ,  Yasuhiko Aoki

    发明人： Masaji Noguchi ,  Toshihisa Kyouno ,  Tomohiro Ueno ,  Hideyuki Miyata ,  Yasuhiko Aoki

    IPC分类号： H04J9/00 ,  H04J14/02 ,  G02B6/28

    CPC分类号： H04J14/02 ,  G02F1/116 ,  G02F1/125 ,  G02F2203/055

    摘要： A method of wavelength selection control is disclosed. The method includes detecting reference RF frequencies by varying the frequency of a RF signal supplied to a reference acousto-optic tunable filter with the reference RF frequencies corresponding to reference wavelengths of reference signals input to the tunable filter, performing tracking to optimize the reference RF frequencies, calculating dependent RF frequencies corresponding to wavelengths of WDM transmission signals and recording the calculated dependent RF frequencies in a first register, repeating the above when a request of wavelength selection is not received, when a request of wavelength selection is received, selecting one of the dependent RF frequencies corresponding to the requested wavelength and recording the selected dependent RF frequency in a second register for use of an acousto-optic tunable filter at a port in operation, and generating and supplying a RF signal having the selected dependent RF frequency to the acousto-optic tunable filter.

    摘要翻译： 公开了一种波长选择控制方法。 该方法包括通过改变提供给参考声光可调谐滤波器的RF信号的频率来检测参考RF频率，其中参考RF频率对应于输入到可调谐滤波器的参考信号的参考波长，执行跟踪以优化参考RF频率 计算对应于WDM传输信号的波长的相关RF频率，并将所计算的相关RF频率记录在第一寄存器中，当接收到波长选择的请求时，当接收到波长选择的请求时，重复上述步骤，选择波长选择中的一个 相应的RF频率对应于所请求的波长，并且将所选择的相关RF频率记录在第二寄存器中，以在运行的端口处使用声光可调谐滤波器，并且生成并提供具有所选择的相关RF频率的RF信号到声音 - 可调谐滤波器。

    Optical apparatus with loss compensation capability and optical amplifier for loss compensation
    67.
    发明授权
    Optical apparatus with loss compensation capability and optical amplifier for loss compensation 有权
    具有损耗补偿能力的光学设备和用于损耗补偿的光学放大器

    公开(公告)号：US07061669B2

    公开(公告)日：2006-06-13

    申请号：US10950699

    申请日：2004-09-28

    申请人： Hisao Nakashima ,  Miki Onaka ,  Masato Nishihara ,  Etsuko Hayashi ,  Hideyuki Miyata

    发明人： Hisao Nakashima ,  Miki Onaka ,  Masato Nishihara ,  Etsuko Hayashi ,  Hideyuki Miyata

    IPC分类号： H01S3/00

    CPC分类号： H04B10/291 ,  H01S3/1305 ,  H01S3/1312 ,  H01S5/0683 ,  H01S5/50

    摘要： An optical apparatus having a loss compensation capability includes between an input connector 1A and an output connector 1B an input side optical parts 2 including an input monitor, an amplification medium 3, a loss medium 4, and an output side optical parts 5 including an output monitor in this order, and is provided with a control circuit 6 for controlling a gain based on a monitor result of input/output light. The amount of reflection attenuation on all points, on which the light can be reflected on the optical path from the output end of the amplification medium 3 to the output connector 1B, can be smaller than the amount of reflection attenuation on the end face of the output connector 1B.

    摘要翻译： 具有损耗补偿能力的光学装置在输入连接器1A和输出连接器1B之间包括输入侧光学部件2，输入侧光学部件2包括输入监视器，放大介质3，损耗介质4和输出侧光学部件5，包括 输出监视器，并且设置有用于基于输入/输出光的监视结果来控制增益的控制电路6。 光可以在从放大介质3的输出端到输出连接器1B的光路上反射的所有点上的反射衰减量可以小于在放大介质3的端面上的反射衰减量 输出连接器1B。

    Optical transmission apparatus and method which adjust rise and fall time of signal light to be transmitted
    68.
    发明授权
    Optical transmission apparatus and method which adjust rise and fall time of signal light to be transmitted 失效
    调整要发送的信号光的上升和下降时间的光传输装置和方法

    公开(公告)号：US07020399B1

    公开(公告)日：2006-03-28

    申请号：US09272404

    申请日：1999-03-19

    申请人： Hideyuki Miyata ,  Hiroshi Nakamoto ,  Hiroshi Onaka

    发明人： Hideyuki Miyata ,  Hiroshi Nakamoto ,  Hiroshi Onaka

    IPC分类号： H04B10/00

    CPC分类号： H04B10/505 ,  H04B10/5057 ,  H04B10/506 ,  H04B10/508 ,  H04J14/02

    摘要： An optical transmission apparatus and method for changing a rise time (tr) and fall time (tf) of a signal light to be transmitted, to reduce wavelength dispersion characteristics and nonlinear effect of a transmission path. A transmitter includes a trtf adjusting circuit capable of adjusting tr and tf of a modulation signal so that the modulation signal is optimized in accordance with reception characteristics. A modulator then modulates a light with this adjusted modulation signal, and the modulated light is then transmitted to a receiver via a transmission path. Therefore, by transmitting the modulated light having changed tr and tf, the influence of wavelength dispersion characteristics and nonlinear effect of the transmission path can be offset, so that the waveform deterioration of signal light after transmission can be reduced.

    摘要翻译： 一种光传输装置和方法，用于改变要传输的信号光的上升时间（t SUB）和下降时间（t >f），以减少波长色散特性，以及 传输路径的非线性效应。 发射机包括能够调制调制信号的调制电路和调谐信号的调制电路，因此 调制信号根据接收特性进行优化。 然后调制器利用该调整后的调制信号对光进行调制，然后经由传输路径将调制的光发射到接收机。 因此，通过发送具有变化的调制光，可以抵消传输路径的波长色散特性和非线性效应的影响，使得波形 可以减少传输后的信号光的劣化。

    Light source apparatus, and method for switching redundancy of the light source
    69.
    发明申请
    Light source apparatus, and method for switching redundancy of the light source 有权
    光源装置以及用于切换光源冗余的方法

    公开(公告)号：US20050213972A1

    公开(公告)日：2005-09-29

    申请号：US10885755

    申请日：2004-07-08

    申请人： Yasuhiko Aoki ,  Hideyuki Miyata ,  Setsuo Yoshida

    发明人： Yasuhiko Aoki ,  Hideyuki Miyata ,  Setsuo Yoshida

    IPC分类号： H04B10/03 ,  H04B10/032 ,  H04B10/079 ,  H04B10/524 ,  H04B10/58 ,  H04J14/00 ,  H04J14/02

    CPC分类号： H04J14/0297 ,  H04B10/032 ,  H04B10/508 ,  H04J14/02

    摘要： The present invention relates to a light source apparatus. The light source apparatus includes a plurality of optical pulse train generation sections; an optical switch section capable of selectively outputting an optical pulse train to be taken as an optical pulse train for current use; an output light generation section capable of generating continuous light of multiple wavelengths from said optical pulse train output from said optical switch section; and an optical switch control section for controlling said optical switch section to switch an output of said optical pulse train for current use from said optical switch section, in accordance with the states of respective optical pulse trains generated by said plurality of optical pulse train generation sections and without involvement of instantaneous power interruption.

    摘要翻译： 本发明涉及光源装置。 光源装置包括多个光脉冲串生成部; 光开关部，其能够选择性地输出作为当前使用的光脉冲串的光脉冲串; 输出光产生部分，能够从所述光开关部分输出的所述光脉冲串产生多个波长的连续光; 以及光开关控制部分，用于根据由所述多个光脉冲串产生部分产生的各个光脉冲串的状态，控制所述光开关部分，用于从所述光开关部切换当前使用的所述光脉冲串的输出 并且不涉及瞬间电源中断。

    Optical amplifier which compensates for dispersion of a WDM optical signal
    70.
    发明授权
    Optical amplifier which compensates for dispersion of a WDM optical signal 失效
    补偿WDM光信号色散的光放大器

    公开(公告)号：US06930824B1

    公开(公告)日：2005-08-16

    申请号：US09080909

    申请日：1998-05-19

    申请人： George Ishikawa ,  Hideyuki Miyata ,  Hiroshi Onaka ,  Motoyoshi Sekiya ,  Kazue Otsuka

    发明人： George Ishikawa ,  Hideyuki Miyata ,  Hiroshi Onaka ,  Motoyoshi Sekiya ,  Kazue Otsuka

    IPC分类号： G02B6/34 ,  H04B10/18 ,  H04J14/02 ,  H04B10/17 ,  H01S3/30

    CPC分类号： H04J14/0224 ,  H04B10/25133 ,  H04B10/2525 ,  H04B10/25253 ,  H04B10/255 ,  H04B10/2563 ,  H04B2210/252 ,  H04B2210/254 ,  H04B2210/258 ,  H04J14/02

    摘要： The invention provides an optical wavelength multiplex transmission method wherein a band in the proximity of a zero dispersion wavelength of an optical fiber is used and optical signals are disposed at efficient channel spacings taking an influence of the band, the wavelength dispersion and the four wave mixing into consideration to realize an optical communication system of an increased capacity which is not influenced by crosstalk by FWM. When optical signals of a plurality of channels having different wavelengths are to be multiplexed and transmitted using an optical fiber, a four wave mixing suppressing guard band of a predetermined bandwidth including the zero-dispersion wavelength λ0 of the optical fiber is set, and signal light waves of the plurality of channels to be multiplexed are arranged on one of the shorter wavelength side and the longer wavelength side outside the guard band.

    摘要翻译： 本发明提供一种光波长多路复用传输方法，其中使用光纤零色散波长附近的频带，并且将光信号设置在影响频带，波长色散和四波混频的有效信道间隔处 考虑到实现不受FWM串扰影响的增加容量的光通信系统。 当使用光纤复用并传输具有不同波长的多个信道的光信号时，包括预定带宽的四波混频抑制保护带包括零色散波长λ<0> 设置光纤，并且多路复用的多个信道的信号光波被布置在保护带外部的短波长侧和较长波长侧中的一个上。