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1. 发明授权

US5604618A Optical parametric circuit and optical circuit using the same 失效
公开(公告)号：US5604618A
公开(公告)日：1997-02-18
申请号：US544414
申请日：1995-10-10
申请人： Kunihiko Mori , Toshio Morioka , Masatoshi Saruwatari
发明人： Kunihiko Mori , Toshio Morioka , Masatoshi Saruwatari
IPC分类号： G02F1/35 , H04J14/02
CPC分类号： G02F1/3536 , G02F1/3519
摘要： The present invention provides an optical parametric circuit for separating four-wave-mixing wave(s) (FWM wave(s)) from signal wave(s) and/or pump waves without using a wavelength filtering device, and optical circuits using the same. The optical parametric circuit of the present invention is made by connecting two output ports of a 2.times.2 optical directional coupler to a nonlinear optical medium via dispersive optical media, each of which has a specific length and a specific propagation constant. By inputting signal waves having carrier angular frequencies .omega..sub.Sj (j=1, 2, . . . N) and pump waves having carrier angular frequencies .omega..sub.P1, .omega..sub.P2 into the first input port of the optical directional coupler, the FWM waves, generated in the nonlinear optical medium, having carrier angular frequencies .omega..sub.fj (=.omega..sub.P1 +.omega..sub.P2 -.omega..sub.S) are output from the second input port of the optical directional coupler. By inputting the signal waves and the pump waves from different input ports of the directional coupler, it is possible to separate amplified signal waves and the FWM waves from the pump waves. By adjusting the lengths and the propagation constants of the dispersive optical media, the amplified signal waves are separated from the pump waves and the FWM wave. The optical parametric circuit is used for wavelength conversion of optical signals, parametric amplification of optical signals, optical phase conjugation (spectral inversion) and for all-optical switching and for optical circuits using the same, for example, optical logic circuits, optical time-division multi/demultiplexers and/or optical sampling circuits.

2. 发明授权

US5923683A Coherent white light source and optical devices therewith 失效
标题翻译：相干白光源及其光学器件
公开(公告)号：US5923683A
公开(公告)日：1999-07-13
申请号：US606438
申请日：1996-02-23
申请人： Toshio Morioka , Kunihiko Mori , Masatoshi Saruwatari
发明人： Toshio Morioka , Kunihiko Mori , Masatoshi Saruwatari
IPC分类号： G02F1/35 , H04B10/50 , H04B10/572 , H04J14/02 , H04J14/08 , G02F1/39
CPC分类号： H04J14/08 , G02F1/3515 , H04B10/503 , H04B10/506 , H04B10/572 , H04J14/02 , G02F1/353 , H01S3/094076 , H04B2210/258
摘要： A coherent white light source generates a uniform and continuous coherent white light spectra over 200 nm at a low pump power. The source is based on a pump light source which produces pump optical pulses at a wavelength .lambda..sub.0 and an optical waveguide to receive a pump optical pulse at .lambda..sub.0 to generate a white pulse having a wavelength spread of .DELTA..lambda.. The optical waveguide is characterized by having dispersion properties such that four-wave mixing light having a wavelength spread of .lambda..sub.0 .+-..DELTA..lambda./2 is produced, and the power gain of the four-wave mixing light is greater than 1. These properties of the waveguide are defined by: the path length of the waveguide device ln G.sub.0 /(2.vertline..gamma..vertline.P) in units of �km!, an absolute value of the dispersion slope to be not more than 16(.vertline..gamma..vertline.E)(.DELTA..lambda..sup. ln G.sub.0) in units of �ps/nm.sup.2 /km! and an absolute value of the dispersion at the wavelength .lambda..sub.0 to be not more than (16/.pi.c) .lambda..sub.0.sup.2 .vertline..gamma..vertline.P/(.DELTA..lambda.).sup.2 in units of �ps/nm/km!. Examples of optical devices utilizing such a super-wideband coherent white light source are demonstrated.
摘要翻译：相干白光源以低泵浦功率在200nm以上产生均匀且连续的相干白光光谱。源基于泵浦光源，其产生波长为λ0的泵浦光脉冲和光波导以接收λ0的泵浦光脉冲，以产生具有DELTAλ的波长扩展的白色脉冲。光波导的特征在于具有分散特性，使得产生具有λ0 +/- DELTAλ/ 2的波长扩展的四波混频光，并且四波混频光的功率增益大于1.这些波导的特性由以下公式定义：以[km]为单位的波导器件的路径长度G0 /（2 | gamma | P），色散斜率的绝对值不大于16（|γ| E ）（DELTA lambda ln G0）以[ps / nm2 / km]为单位，波长λ0处的色散的绝对值不大于（16 / pic）λ02 | 以[ps / nm / km]为单位的gamma | P /（DELTA lambda）2。示出了利用这种超宽带相干白光源的光学装置的示例。

3. 发明授权

US6023360A Multiple-channel all-optical TDM-WDM converter and multiple-channel all-optical TDM demultiplexer 失效
标题翻译：多通道全光TDM-WDM转换器和多通道全光TDM解复用器
公开(公告)号：US6023360A
公开(公告)日：2000-02-08
申请号：US892474
申请日：1997-07-14
申请人： Toshio Morioka , Hidehiko Takara , Masatoshi Saruwatari
发明人： Toshio Morioka , Hidehiko Takara , Masatoshi Saruwatari
IPC分类号： G02F1/35 , H04J14/02 , H04J14/08 , H04Q11/00
CPC分类号： H04Q11/0005 , H04J14/0223 , H04J14/08 , H04Q11/0003 , G02F1/3519 , G02F1/3536 , H04Q2011/0009 , H04Q2011/0011 , H04Q2011/0013 , H04Q2011/0015 , H04Q2011/002 , H04Q2011/0022 , H04Q2011/0026 , H04Q2011/0033 , H04Q2011/0035 , H04Q2011/0041
摘要： A multiple-channel all-optical TDM-WDM converter and multiple-channel all-optical TDM demultiplexer which is able to simultaneously and spatially separate optical signal pulse trains of each channel from a TDM optical signal pulse train is structured without using a multistage-structure constitution. A control optical source 10 generates a control optical pulse train containing N optical frequencies, which is synchronous with optical signal pulse trains of N channels which are to be divided from a TDM optical signal pulse train wherein optical signal pulse trains of N channels have been multiplexed in time series. An optical wavelength multiplexer 11 combines the time-division-multiplexed optical signal pulse train and the control optical pulse train. The light output from an optical wavelength multiplexer 11 is input to a nonlinear material 12, which induces a four-wave mixing effect between the control optical pulse stream having the N optical frequencies and optical signal pulse trains of N channels, and outputs a frequency-converted optical pulse train which is the combination of N optical pulse trains having different optical frequencies. An optical wavelength demultiplexer 13 spatially divides the N types of optical pulse trains according to each optical frequency from the frequency-converted optical pulse train.
摘要翻译：能够同时和空间上分离每个信道的光信号脉冲串与TDM光信号脉冲串的多通道全光TDM-WDM转换器和多通道全光TDM解复用器，而不使用多级结构宪法。控制光源10产生包含N个光频的控制光脉冲串，其与从N G信道的光信号脉冲串已复用的TDM光信号脉冲串划分的N个信道的光信号脉冲串同步在时间序列。光波长多路复用器11组合时分多路复用光信号脉冲串和控制光脉冲串。从光学波长多路复用器11输出的光被输入到非线性材料12，其引起具有N个光学频率的控制光脉冲流和N个通道的光信号脉冲串之间的四波混频效应，作为具有不同光频率的N个光脉冲串的组合的转换光脉冲串。光波长解复用器13根据每个光学频率根据频率转换的光脉冲列空间地划分N种类型的光脉冲串。

4. 发明授权

US5357359A All-optical polarization independent optical time division multiplexer and demultiplexer with birefringence compensation 失效
标题翻译：全光偏振无关光时分多路复用器和双折射补偿解复用器
公开(公告)号：US5357359A
公开(公告)日：1994-10-18
申请号：US105812
申请日：1993-08-11
申请人： Kentaro Uchiyama , Toshio Morioka , Masatoshi Saruwatari
发明人： Kentaro Uchiyama , Toshio Morioka , Masatoshi Saruwatari
IPC分类号： G02B6/28 , G02F1/365 , H04J14/08 , H04J4/00
CPC分类号： H04J14/08
摘要： An all-optical polarization independent optical time division multiplexer and demultiplexer which are stable as well as very fast, while being independent of the polarization state of the input optical signal pulses. The demultiplexer has a wavelength-division-multiplexing coupler for wavelength-division-multiplexing time-division-multiplexed optical signal pulses and optical control pulses, and splitting the optical signal pulses at a splitting ratio of 1:1 into two ports, the optical control pulses being in a polarization state in which two orthogonally polarized components have a substantially identical amplitude; an optical Kerr medium with birefringence, for connecting two ports of the wavelength-division-multiplexing coupler, the optical Kerr medium incorporating a birefringence compensation mechanism for compensating a polarization dispersion between two principal axes of the birefringence; and a wavelength division demultiplexer for wavelength-division-demultiplexing time-wise overlapping optical signal pulses and optical control pulses propagated through the optical Kerr medium, to obtain time-division-demultiplexed optical signal pulses. In the multiplexer, the input and output relationship is reversed in the same configuration.
摘要翻译：全光偏振无关光时分复用器和解复用器，其稳定性和非常快，同时独立于输入光信号脉冲的偏振状态。解复用器具有用于波分复用时分多路复用光信号脉冲和光控脉冲的波分复用耦合器，并以1：1的分频比将光信号脉冲分为两个端口，光控其中两个正交极化分量具有基本上相同的振幅的偏振状态; 具有双折射的光学克尔介质，用于连接波分复用耦合器的两个端口，光学克尔介质结合有用于补偿双折射的两个主轴之间的偏振色散的双折射补偿机构; 以及用于波分解复用时间重叠光信号脉冲的波分解复用器和通过光克尔介质传播的光控制脉冲，以获得时分解复用的光信号脉冲。在多路复用器中，输入和输出关系在相同的配置中颠倒。

5. 发明申请

US20110188855A1 COUPLED SYSTEM MULTI-CORE FIBER, COUPLING MODE MULTIPLEXER AND DEMULTIPLEXER, SYSTEM FOR TRANSMISSION USING MULTI-CORE FIBER AND METHOD FOR TRANSMISSION USING MULTI-CORE FIBER 有权
标题翻译：耦合系统多芯光纤，耦合模式多路复用器和解复用器，使用多芯光纤的传输系统和使用多芯光纤的传输方法
公开(公告)号：US20110188855A1
公开(公告)日：2011-08-04
申请号：US13121465
申请日：2009-10-02
申请人： Yasuo Kokubun , Masanori Koshiba , Toshio Morioka
发明人： Yasuo Kokubun , Masanori Koshiba , Toshio Morioka
IPC分类号： H04J14/00 , G02B6/26
CPC分类号： G02B6/02042 , G02B6/2804 , H04B10/2581 , H04J14/04
摘要： The multi-core fiber of the present invention uses a multi-core fiber configuration, compatible with the “coupled” operation mode in which coupling between cores is positively utilized, to carry out mode division multiplexing transmission via a multi-core fiber that contains multiple single-mode cores in one optical fiber. The multi-core fiber of the present invention uses a configuration in which mode multiplexing transmission is carried out using a multi-core fiber that contains multiple single-mode cores in one optical fiber, wherein multiple cores are strongly coupled intentionally to form a coupled multi-core fiber that makes the coupled modes correspond, one to one, to the transmission channels.
摘要翻译：本发明的多核心光纤采用多芯光纤配置，与核心之间的耦合被积极利用的“耦合”操作模式兼容，通过包含多个核心的多核光纤进行模分割复用传输一个光纤中的单模核心。本发明的多核光纤使用在一个光纤中使用包含多个单模核的多芯光纤进行模式复用传输的结构，其中多个核被有意地强耦合以形成耦合多核心光纤使得耦合模式一一对应于传输信道。

6. 发明授权

US07024122B2 Ultrahigh-speed clock extraction circuit 失效
公开(公告)号：US07024122B2
公开(公告)日：2006-04-04
申请号：US10285525
申请日：2002-11-01
申请人： Kentaro Uchiyama , Hidehiko Takara , Eiichi Yamada , Etsu Hashimoto , Toshio Morioka
发明人： Kentaro Uchiyama , Hidehiko Takara , Eiichi Yamada , Etsu Hashimoto , Toshio Morioka
IPC分类号： H04B10/00
CPC分类号： H03L7/18 , H03L7/08 , H03L2207/10 , H04J14/02 , H04L7/0075 , H04L7/033 , H04L29/12018 , H04L29/12207 , H04L61/10 , H04L61/20
摘要： In an ultrahigh-speed clock extraction circuit wherein a local pulse generating light source 22 for generating a local optical pulse stream synchronized in bit phase with an input optical signal pulse stream is placed in a phase-locked loop, when repetition frequencies of the input optical signal pulse stream and the local optical pulse stream bear a particular relationship, a frequency demultiplier 32 and multipliers 43 and 52 are set so that the frequency of a modulation signal for an optical modulator 41 and a frequency which is a natural-number multiple of the modulation signal frequency, and the frequency of a down-converted version of an optical pulse stream output from a photodetector 42 differ from each other.

7. 发明申请

US20110220776A1 FIBER FUSE DETECTING APPARATUS 有权
标题翻译：光纤保险丝检测装置
公开(公告)号：US20110220776A1
公开(公告)日：2011-09-15
申请号：US13123445
申请日：2009-09-18
申请人： Kazi Sarwar Abedin , Toshio Morioka
发明人： Kazi Sarwar Abedin , Toshio Morioka
IPC分类号： G01J1/32 , G01N21/88
CPC分类号： G01M11/3145 , G01M11/3154 , G01M11/35 , G02B6/26 , H04B10/079 , H04B10/07957
摘要： A fiber fuse detecting apparatus provides early detection of a fiber fuse generation in an optical fiber that propagates laser light, preventing the damage from expanding. It comprises light input means arranged on a laser light incidence side of the optical fiber that inputs at least a portion of reverse direction propagation light propagating in a reverse direction to light incidenting the optical fiber, light receiving means that photo-electrically converts light input by the light input means, electric filter means that extracts from an output signal of the light receiving means a prescribed frequency band component that contains a periodic signal due to fiber fuse, detecting means that detects change of or a prescribed value in output level of the electric filter means, and warning means that emits a warning signal in response to a detection output of the detecting means. The laser light to the optical fiber is stopped or reduced by means of the warning means.
摘要翻译：光纤熔丝检测装置提供对传播激光的光纤中的光纤熔丝生成的早期检测，防止损伤扩大。它包括布置在光纤的激光入射侧的光输入装置，其输入反射方向传播的反向传播光的至少一部分到入射到光纤的光;光接收装置，光电转换由所述光输入装置，从所述光接收装置的输出信号中提取包含由于光纤熔丝引起的周期性信号的规定频带分量的电滤波器装置，检测所述电力输出装置的输出电平的变化或规定值的检测装置过滤器装置和响应于检测装置的检测输出发出警告信号的警告装置。通过警告装置停止或减少到光纤的激光。

8. 发明授权

US08503847B2 Method of arranging cores of multi-core fiber 有权
标题翻译：多芯光纤核心配置方法
公开(公告)号：US08503847B2
公开(公告)日：2013-08-06
申请号：US13122335
申请日：2009-10-02
申请人： Yasuo Kokubun , Masanori Koshiba , Toshio Morioka
发明人： Yasuo Kokubun , Masanori Koshiba , Toshio Morioka
IPC分类号： G02B6/02
CPC分类号： G02B6/02042 , G02B6/2804 , H04B10/2581 , H04J14/04
摘要： A multi-core fiber of the present invention employs the multi-core fiber mode, which corresponds to the “uncoupled” operation aspect in which individual cores are used independently for single-mode transmission, to perform space division multiplexing transmission using a multi-core fiber in which multiple single-mode cores are stored in one optical fiber. More specifically, the multi-core fiber of the present invention forms an uncoupled multi-core fiber that makes individual cores correspond to single-mode, independent transmission channels.
摘要翻译：本发明的多核光纤采用多核光纤模式，其对应于单独使用各个核独立用于单模传输的“非耦合”操作方面，使用多核进行空分复用传输多个单模核心存储在一根光纤中的光纤。更具体地说，本发明的多芯光纤形成一个非耦合的多芯光纤，使得各个核对应于单模独立的传输信道。

9. 发明授权

US08822895B2 Fiber fuse detecting apparatus 有权
标题翻译：光纤熔丝检测装置
公开(公告)号：US08822895B2
公开(公告)日：2014-09-02
申请号：US13123445
申请日：2009-09-18
申请人： Kazi Sarwar Abedin , Toshio Morioka
发明人： Kazi Sarwar Abedin , Toshio Morioka
IPC分类号： G01J1/32 , G01N21/88 , H04B10/03 , G02B6/26 , G01M11/00 , H04B10/079
CPC分类号： G01M11/3145 , G01M11/3154 , G01M11/35 , G02B6/26 , H04B10/079 , H04B10/07957
摘要： A fiber fuse detecting apparatus provides early detection of a fiber fuse generation in an optical fiber that propagates laser light, preventing the damage from expanding. It comprises light input means arranged on a laser light incidence side of the optical fiber that inputs at least a portion of reverse direction propagation light propagating in a reverse direction to light incidenting the optical fiber, light receiving means that photo-electrically converts light input by the light input means, electric filter means that extracts from an output signal of the light receiving means a prescribed frequency band component that contains a periodic signal due to fiber fuse, detecting means that detects change of or a prescribed value in output level of the electric filter means, and warning means that emits a warning signal in response to a detection output of the detecting means. The laser light to the optical fiber is stopped or reduced by means of the warning means.
摘要翻译：光纤熔丝检测装置提供对传播激光的光纤中的光纤熔丝生成的早期检测，防止损伤扩大。它包括布置在光纤的激光入射侧的光输入装置，其输入反射方向传播的反向传播光的至少一部分到入射到光纤的光;光接收装置，光电转换由所述光输入装置，从所述光接收装置的输出信号中提取包含由于光纤熔丝引起的周期性信号的规定频带分量的电滤波器装置，检测所述电力输出装置的输出电平的变化或规定值的检测装置过滤器装置和响应于检测装置的检测输出发出警告信号的警告装置。通过警告装置停止或减少到光纤的激光。

10. 发明授权

US08811786B2 Coupled system multi-core fiber, coupling mode multiplexer and demultiplexer, system for transmission using multi-core fiber and method for transmission using multi-core fiber 有权
标题翻译：耦合系统多芯光纤，耦合模式多路复用器和解复用器，使用多芯光纤传输的系统和使用多芯光纤传输的方法
公开(公告)号：US08811786B2
公开(公告)日：2014-08-19
申请号：US13121465
申请日：2009-10-02
申请人： Yasuo Kokubun , Masanori Koshiba , Toshio Morioka
发明人： Yasuo Kokubun , Masanori Koshiba , Toshio Morioka
IPC分类号： G02B6/02 , G02B6/28
CPC分类号： G02B6/02042 , G02B6/2804 , H04B10/2581 , H04J14/04
摘要： The multi-core fiber of the present invention uses a multi-core fiber configuration, compatible with the “coupled” operation mode in which coupling between cores is positively utilized, to carry out mode division multiplexing transmission via a multi-core fiber that contains multiple single-mode cores in one optical fiber. The multi-core fiber of the present invention uses a configuration in which mode multiplexing transmission is carried out using a multi-core fiber that contains multiple single-mode cores in one optical fiber, wherein multiple cores are strongly coupled intentionally to form a coupled multi-core fiber that makes the coupled modes correspond, one to one, to the transmission channels.
摘要翻译：本发明的多核心光纤采用多芯光纤配置，与核心之间的耦合被积极利用的“耦合”操作模式兼容，通过包含多个核心的多核光纤进行模分割复用传输一个光纤中的单模核心。本发明的多核光纤使用在一个光纤中使用包含多个单模核的多芯光纤进行模式复用传输的结构，其中多个核被有意地强耦合以形成耦合多核心光纤使得耦合模式一一对应于传输信道。

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