公开(公告)号：US06429955B1

公开(公告)日：2002-08-06

申请号：US09218102

申请日：1998-12-22

申请人： Yoshihiko Suemura ,  Soichiro Araki ,  Akio Tajima ,  Seigo Takahashi ,  Yoshiharu Maeno ,  Naoya Henmi

发明人： Yoshihiko Suemura ,  Soichiro Araki ,  Akio Tajima ,  Seigo Takahashi ,  Yoshiharu Maeno ,  Naoya Henmi

IPC分类号： H04J1402

CPC分类号： H04Q11/0001

摘要： Disclosed is an optical network which has: wavelength tunable optical transmitters of number MN, where N is an integer of two or more, each of which outputs an optical signal with arbitrary one of M wavelengths &lgr;1, &lgr;2, . . . , &lgr;M, where M is an integer of two or more, that are different from one another; a MN×N optical switch whose input ports are connected to the respective wavelength tunable optical transmitters of number MN, and which allows optical signals input to different input ports to be output form its same output port; 1×M optical wavelength demultiplexers of number N which output demultiplexing optical signal with wavelengths &lgr;1, &lgr;2, . . . , &lgr;M input from output ports of the MN×N optical switch into each wavelength; and optical receivers of number MN which receive optical signals input from the 1×M optical wavelength demultiplexers of number N.

摘要翻译： 公开了一种光网络，其具有：号MN的波长可调光发射机，其中N是两个或更多个的整数，每个都输出具有M个波长lambd1，lambd2的任意一个的光信号。 。 。 ，lambdM，其中M是两个或更多个彼此不同的整数; 一个MNxN光开关，其输入端口连接到MN号的各波长可调光发射机，并允许输入到不同输入端口的光信号从其相同的输出端口输出; 数字N的1xM光学波长解复用器，其输出具有波长lambd1，lambd2的解复用光信号。 。 。 ，将MNxN光开关的输出端口的lambdM输入到每个波长; 数字MN的光接收器接收从数字N的1MM光波分复用器输入的光信号。

公开(公告)号：USRE37621E1

公开(公告)日：2002-04-02

申请号：US09413827

申请日：1999-10-06

申请人： Naoya Henmi ,  Shogo Nakaya ,  Tomoki Saito

发明人： Naoya Henmi ,  Shogo Nakaya ,  Tomoki Saito

IPC分类号： H04B1016

CPC分类号： G02B6/29377 ,  H04B10/25133 ,  H04B10/25253 ,  H04B10/2935

摘要： An optical communication transmission system including an optical amplifier lumped repeater system of the present invention includes, for the purpose of preventing degradation of the transmission characteristic arising from wavelength dispersion of optical fibers due to raised power of the optical signal, transmission optical fibers provided for all or most of the repeating sections and having wavelength dispersion values set to different values from zero, and optical fibers provided for the individual sections to compensate for the sum of wavelength dispersion of the sections so as to reduce the total wavelength dispersion to zero. The optical fiber for compensation for each section may be replaced by a substitutive compensation element. Alternatively, very small wavelength dispersion which remains due to failure in compensating to zero dispersion may be compensated for using a dispersion equalizer of an electric system in the reception section.

摘要翻译： 包括本发明的光放大器集总中继器系统的光通信传输系统包括为了防止由于光信号的提高功率而导致的光纤的波长色散引起的传输特性的劣化，为全部提供的传输光纤 或大部分重复部分，并且将波长色散值设定为与零不同的值，以及为每个部分提供的光纤以补偿部分的波长色散之和，以将总波长色散减小至零。 用于每个部分的补偿的光纤可以由替代补偿元件代替。 或者，可以使用接收部分中的电气系统的色散均衡器来补偿由于补偿零色散失败而保留的非常小的波长色散。

公开(公告)号：US06333800B1

公开(公告)日：2001-12-25

申请号：US09556615

申请日：2000-04-20

申请人： Yoshihiko Suemura ,  Naoya Henmi

发明人： Yoshihiko Suemura ,  Naoya Henmi

IPC分类号： H04J1402

CPC分类号： H04Q11/0005 ,  H04J14/02 ,  H04Q2011/0015 ,  H04Q2011/0022 ,  H04Q2011/0032 ,  H04Q2011/0075 ,  H04Q2011/0086

摘要： An optical wavelength selector is provided that selects WDM channels from WDM optical signal and outputs each WDM channels from a plurality of ports. WDM optical signal in which m×n WDM channels are multiplexed is divided into n WDM channel groups and outputted by means of one wavelength-division demultiplexer. One WDM channel group is selected from the n WDM channel groups by means of n optical gate switches. The selected WDM optical signal is then separated into m WDM channels by wavelength and outputted by means of an optical wavelength router. As a result, m WDM channels of a specific WDM channel group can be received by m optical receivers.

公开(公告)号：US6081557A

公开(公告)日：2000-06-27

申请号：US857807

申请日：1997-05-16

申请人： Yoshihiko Suemura ,  Naoya Henmi

发明人： Yoshihiko Suemura ,  Naoya Henmi

IPC分类号： H04L7/00 ,  G06F13/40 ,  H04L27/00

CPC分类号： G06F13/4022

摘要： Disclosed are a datalink system, which has: a data transmission system which is composed of a parallel-to-serial converter which converts a parallel signal into a serial signal, a data transmission line which transmits the serial signal output from the parallel-to-serial converter and a serial-to-parallel converter which converts the serial signal transmitted through the data transmission line into the parallel signal; and a control signal transmission system which is composed of a control signal transmission line and lies in parallel with the data transmission system, and a communication network which has a data network and a control signal network.

摘要翻译： 公开了一种数据链路系统，其具有：数据传输系统，其由将并行信号转换为串行信号的并行到串行转换器组成;数据传输线，其从并行 - 串行转换器发送串行信号， 串行转换器和串行到并行转换器，其将通过数据传输线传输的串行信号转换成并行信号; 以及由控制信号传输线构成并与数据传输系统并联的控制信号传输系统，以及具有数据网络和控制信号网络的通信网络。

公开(公告)号：US5506920A

公开(公告)日：1996-04-09

申请号：US188027

申请日：1994-01-28

申请人： Yoshihiko Suemura ,  Naoya Henmi ,  Akio Tajima ,  Haruo Takahashi ,  Hiroyuki Morimura

发明人： Yoshihiko Suemura ,  Naoya Henmi ,  Akio Tajima ,  Haruo Takahashi ,  Hiroyuki Morimura

IPC分类号： G01J3/26 ,  G02B5/28 ,  G02B7/00 ,  H01L41/09 ,  G02B6/26

CPC分类号： G02B26/007 ,  H02N2/046

摘要： An optical filter having a transmission wavelength to be tuned dependent on light incident angle is rotatively provided in a collimated light path. The optical filter is rotated by the displacement of a piezoelectric actuator by a structure in which the displacement is converted to the rotation of the optical filter. The converting structure comprises a displacement magnifying mechanism for magnifying the displacement to provide the magnified displacement and a motion converting mechanism for converting the magnified displacement to the rotation of the optical filter.

摘要翻译： 具有根据光入射角调谐的透射波长的滤光器在准直光路中可旋转地设置。 滤光器通过压电致动器的位移而旋转，其结构是将位移转换为滤光器的旋转。 转换结构包括用于放大位移以提供放大位移的位移放大机构和用于将放大位移转换为滤光器的旋转的运动转换机构。

公开(公告)号：US5457559A

公开(公告)日：1995-10-10

申请号：US225589

申请日：1994-04-11

申请人： Tomoki Saito ,  Naoya Henmi

发明人： Tomoki Saito ,  Naoya Henmi

IPC分类号： H04B10/556 ,  H04B10/524 ,  H04B10/58 ,  H04J14/08 ,  H04L7/00 ,  H04L7/02

CPC分类号： H04L7/0075 ,  H04J14/08

摘要： A signal light and a clock light which is generated by a clock light generator are propagated through a non-linear optical medium of, for instance, a silica based single mode optical fiber, from which the signal and clock lights and a four-wave mixing light are obtained. One light, for instance, the four-wave mixing light is extracted from the output lights of the non-linear optical medium, and a control signal which is dependent on a time-mean value in power of the extracted light is applied to a voltage controlled oscillator (VCO) for driving the clock light generator. Thus, a clock light which is locked in phase to the signal light is obtained. In case where the signal light comprises N time-division sequential lights (N=1, 2, 3, - - -), and a clock frequency of the clock light is 1/N of a clock frequency of the signal light, each one of the N time-division seaquential lights is shifted in phase or frequency by the non-linear optical medium, so that the phase or frequency shifted sequential light is switched to be demultiplexed by a switch device such as an optical coupler and a polarization beam splitter.

摘要翻译： 由时钟光发生器产生的信号光和时钟光通过例如基于二氧化硅的单模光纤的非线性光学介质传播，信号和时钟发光和四波混频 获得光。 例如，从非线性光学介质的输出光提取一个光，并且将取决于提取的光的功率的时间平均值的控制信号施加到电压 控制振荡器（VCO），用于驱动时钟光发生器。 因此，获得与信号光锁相的时钟光。 在信号光包括N个时分顺序光（N = 1,2,3， - - ））的情况下，并且时钟光的时钟频率是信号光的时钟频率的1 / N， 通过非线性光学介质在相位或频率上移动N个时分海景灯，使得相位或频移顺序光被切换为由诸如光耦合器和偏振分束器之类的开关装置解复用 。

公开(公告)号：US5184243A

公开(公告)日：1993-02-02

申请号：US620111

申请日：1990-11-30

申请人： Naoya Henmi ,  Tetsuyuki Suzaki ,  Tomoki Saito

发明人： Naoya Henmi ,  Tetsuyuki Suzaki ,  Tomoki Saito

IPC分类号： H04B10/50 ,  H04B10/532 ,  H04B10/54 ,  H04B10/548

CPC分类号： H04B10/532 ,  H04B10/505 ,  H04B10/5053 ,  H04B10/541 ,  H04B10/548

摘要： A plurality of transmitting signal lights are supplied from a semiconductor laser light source which is modulated by a current having adjusted amplitude and phase injected thereinto in an optical transmitting apparatus. The signal lights are modulated in intensity by a plurality of external modulators, and a time-difference is applied among the signal lights. Thus, the signal lights are combined to provide a transmitting signal light which is propagated through a transmission line. At this time, a frequency component having a low transmission speed is supplied to the transmission line earlier than a frequency component having a fast transmission speed in compliance with a wavelength dispersion property of the transmission line.

公开(公告)号：US4805235A

公开(公告)日：1989-02-14

申请号：US15705

申请日：1987-02-17

申请人： Naoya Henmi

发明人： Naoya Henmi

IPC分类号： H04B10/50 ,  H04B10/54 ,  H04B10/548 ,  H04B9/00

CPC分类号： H04B10/504 ,  H04B10/541 ,  H04B10/548

摘要： Supplied with an optical signal from a directly modulated semiconductor laser (11) in an optical transmitter, an optical frequency discriminator (15) converts a frequency modulated component of the optical signal to an intensity modulated component and produces an output optical beam which consists essentially of the intensity modulated component. Preferably, a negative feedback circuit (32, 33) is supplied in effect with the output optical beam representative of mark and space codes and controls the semiconductor laser and/or the optical frequency discriminator to keep the extinction ratio of the output optical signal at an optimum value such that the optical frequency discriminator has a transmissivity of about 90.degree./o for a predetermined one of the mark and space codes and a substantially zero transmissivity for the other of the mark and space codes.

摘要翻译： 在光发射机中提供来自直接调制的半导体激光器（11）的光信号，光学鉴频器（15）将光信号的调制分量转换为强度调制分量，并产生输出光束，其基本上由 强度调制分量。 优选地，负反馈电路（32,33）实际上被提供表示标记和空格码的输出光束，并且控制半导体激光器和/或光学鉴频器以将输出光信号的消光比保持在 最佳值，使得对于预定的标记和空格码，光学鉴频器具有约90°/ o的透射率，并且对于另一个标记和空格码，基本上为零透射率。