公开(公告)号：US20100291459A1

公开(公告)日：2010-11-18

申请号：US12744468

申请日：2008-11-28

申请人： Masato Nishihara ,  Shushin Inoue ,  Toru Hatae

发明人： Masato Nishihara ,  Shushin Inoue ,  Toru Hatae

IPC分类号： H01M8/24 ,  H01M8/00

CPC分类号： H01M8/1286 ,  H01M8/023

摘要： A segmented-in-series solid oxide fuel cell stack of the invention comprises: an electrically-insulating porous support body having a gas passage therein; and a plurality of fuel cells arranged side by side on a surface of the support body. Each fuel cell have a first inner electrode layer; a current collector and a second inner electrode layer arranged side by side on the first inner electrode layer; and a solid electrolyte layer and an outer electrode layer sequentially laminated on the second inner electrode layer, and have a multilayer structure in which the solid electrolyte layer is extended and connected to the current collector through an intermediate layer. These fuel cells are connected in series. The current collector and the second inner electrode layer are arranged with a predetermined clearance therebetween on the first inner electrode layer. A fuel cell of the invention is formed by storing these segmented-in-series solid oxide fuel cell stacks in a storage container.

摘要翻译： 本发明的分段式固体氧化物燃料电池堆包括：具有气体通道的电绝缘多孔支撑体; 以及在所述支撑体的表面上并排配置的多个燃料电池。 每个燃料电池具有第一内部电极层; 在第一内部电极层上并排设置的集电体和第二内部电极层; 并且固体电解质层和外部电极层顺序层压在第二内部电极层上，并且具有其中固体电解质层通过中间层延伸并连接到集电器的多层结构。 这些燃料电池串联连接。 集电体和第二内部电极层在第一内部电极层上以规定间隔配置。 本发明的燃料电池通过将这些分段式固体氧化物燃料电池堆存储在储存容器中而形成。

公开(公告)号：US07505197B2

公开(公告)日：2009-03-17

申请号：US10798267

申请日：2004-03-12

申请人： Yasushi Sugaya ,  Etsuko Hayashi ,  Masato Nishihara ,  Shinichirou Muro

发明人： Yasushi Sugaya ,  Etsuko Hayashi ,  Masato Nishihara ,  Shinichirou Muro

IPC分类号： H04B10/17 ,  H04B10/12

CPC分类号： G02B6/264 ,  H01S3/005 ,  H01S3/0078 ,  H01S3/06758 ,  H01S3/094003 ,  H01S3/094096 ,  H01S3/0941 ,  H01S3/1301 ,  H01S3/1305 ,  H01S3/1608 ,  H01S3/302 ,  H04B10/2916

摘要： In an optical transmission system according to one aspect of the present invention, for transmitting a WDM light from a transmission station to a reception station, utilizing a Raman amplifier, the Raman amplifier comprises an optical amplification medium; a pumping light source generating a plurality of pumping lights having wavelengths different from each other; an optical device introducing the plurality of pumping lights to the optical amplification medium; and control means for controlling the pumping light source, the transmission station sends out a plurality of reference lights having wavelengths at which respective Raman gain obtained by the plurality of pumping lights reach peaks or wavelengths close to the above wavelengths, and the control means controls the plurality of pumping lights based on the optical powers of the plurality of reference lights. Thus, it becomes possible to accurately manage the optical power balance of the WDM light and the optical power of the entire WDM light.

摘要翻译： 在根据本发明的一个方面的光传输系统中，为了利用拉曼放大器将来自发射站的WDM光发射到接收站，所述拉曼放大器包括光放大介质; 产生具有彼此不同波长的多个泵浦光的泵浦光源; 将所述多个泵浦光引入所述光放大介质的光学装置; 以及用于控制所述泵浦光源的控制装置，所述发送站发出多个具有波长的参考光，所述波长使由所述多个泵浦光获得的各拉曼增益达到接近上述波长的波峰或波长，并且所述控制装置控制 基于多个参考光的光功率的多个泵浦光。 因此，可以精确地管理WDM光的光功率平衡和整个WDM光的光功率。

公开(公告)号：US20070264028A1

公开(公告)日：2007-11-15

申请号：US11599277

申请日：2006-11-15

申请人： Masahiro Yuki ,  Kentaro Nakamura ,  Hiroki Ooi ,  Masato Nishihara

发明人： Masahiro Yuki ,  Kentaro Nakamura ,  Hiroki Ooi ,  Masato Nishihara

IPC分类号： H04B10/04

CPC分类号： H04B10/5051 ,  H04B10/5057 ,  H04B10/50577 ,  H04B10/58

摘要： In an optical transmitter of the invention, continuous light from a light source is a (CS)RZ-D(Q)PSK modulated by two optical modulators connected in series, and a part of the optical signal output from a post-stage optical modulator is branched by an output monitor section, and the power of a preset frequency component, excluding a frequency component corresponding to a baud rate, included in an electrical spectrum acquired by photoelectrically converting the branched beams is measured. The relative phase of drive signals applied to the optical modulators is then feed-back controlled so that the power becomes a minimum. As a result, a delay shift due to a temperature change or the like between drive signals applied to respective optical modulators, can be reliably compensated.

摘要翻译： 在本发明的光发射机中，来自光源的连续光是由串联连接的两个光调制器调制的（CS）RZ-D（Q）PSK，并且从后级光调制器输出的一部分光信号 由输出监视部分支，并且测量包括在通过光电转换分支光束获得的电谱中的除波特率对应的频率分量之外的预设频率分量的功率。 然后反馈控制施加到光学调制器的驱动信号的相对相位，使得功率变得最小。 结果，可以可靠地补偿由于施加到各个光学调制器的驱动信号之间的温度变化等引起的延迟偏移。

公开(公告)号：US20050088727A1

公开(公告)日：2005-04-28

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： H01S3/067 ,  H01S3/13 ,  H01S3/131 ,  H01S5/0683 ,  H01S5/50 ,  H01S3/10

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。

公开(公告)号：US08064130B2

公开(公告)日：2011-11-22

申请号：US10351340

申请日：2003-01-27

申请人： Masato Nishihara ,  Yasushi Sugaya ,  Etsuko Hayashi

发明人： Masato Nishihara ,  Yasushi Sugaya ,  Etsuko Hayashi

IPC分类号： H04B10/17 ,  H04B10/12

CPC分类号： H04B10/2935 ,  H01S3/06758 ,  H01S3/06775 ,  H01S3/094011 ,  H01S3/10007 ,  H01S3/10023 ,  H01S3/1608 ,  H01S2301/02 ,  H01S2301/04

摘要： It is an object of the present invention to provide an optical amplifier using optical amplification mediums each doped with a rare earth element for increasing amplification efficiency of signal light in S-band and the like. To this end, the optical amplifier is constituted such that, when performing optical amplification for S-band and the like in which a center wavelength of a gain peak in the optical amplification medium is located at an outside of a signal band, a gain coefficient of when a pumping condition of the optical amplification medium is maximum is set so that a parameter η obtained by dividing a minimum value of the gain coefficient in the signal band by a maximum value of the gain coefficient outside of the signal band becomes a previously set value or more, wherein, for example, the parameter η can be increased by controlling a temperature of each of a plurality of EDFs between which gain equalizers are disposed.

摘要翻译： 本发明的目的是提供一种使用各自掺杂有稀土元素的光放大介质的光放大器，用于提高S波段等信号光的放大效率。 为此，光放大器被构成为：当对光放大介质中的增益峰值的中心波长位于信号频带外侧的S波段等进行光放大时，增益系数 当光放大介质的泵送条件最大时，设定参数＆egr; 通过将信号频带中的增益系数的最小值除以信号频带之外的增益系数的最大值而获得的值成为预先设定的值以上，其中，例如参数＆egr; 可以通过控制在其间设置增益均衡器的多个EDF中的每一个的温度来增加。

公开(公告)号：US20080088915A1

公开(公告)日：2008-04-17

申请号：US11979370

申请日：2007-11-01

申请人： Etsuko Hayashi ,  Shunsuke Ono ,  Setsuhisa Tanabe ,  Shinichirou Muro ,  Masato Nishihara

发明人： Etsuko Hayashi ,  Shunsuke Ono ,  Setsuhisa Tanabe ,  Shinichirou Muro ,  Masato Nishihara

IPC分类号： H01S3/00 ,  H04B10/16 ,  H04B10/17 ,  H04J14/02

CPC分类号： H01S3/06754 ,  H01S3/0007 ,  H01S3/0064 ,  H01S3/06758 ,  H01S3/0677 ,  H01S3/09415 ,  H01S3/1608 ,  H01S2301/04

摘要： In an optical amplification characteristics simulation apparatus according to the present invention, using spectrums of a signal light input to an optical amplifier and a characteristic parameter for amplification medium, gain wavelength characteristics of the amplification medium are calculated. A calculating formula for the above has a parameter corresponding to a gain fluctuation portion due to a gain spectral hole burning (GSHB) phenomenon, and this parameter is defined by a function obtained by modeling a physical phenomenon in which a population inversion rate is reduced due to the GSHB, based on that electron occupation numbers in each Stark level on the end level side are increased. Then, based on the calculated gain wavelength characteristics, the output power of the signal light is obtained, to thereby perform the optical amplification characteristics simulation on the optical amplifier. As a result, it is possible to construct a high versatile calculation model based on the physical phenomenon for the gain fluctuation due to the GSHB, to thereby simulate with high precision the optical amplification characteristics of the optical amplifier under arbitrary conditions.

摘要翻译： 在根据本发明的光放大特性模拟装置中，使用输入到光放大器的信号光的光谱和放大介质的特性参数，计算放大介质的增益波长特性。 上述计算公式由于增益谱孔燃烧（GSHB）现象而具有与增益变动部分相对应的参数，该参数由通过模拟体积反转率减少的物理现象获得的函数来定义 根据GSHB的最终级别的每个Stark级别的电子占有数量增加。 然后，基于计算出的增益波长特性，获得信号光的输出功率，从而对光放大器进行光放大特性仿真。 结果，可以基于由于GSHB引起的增益波动的物理现象构建高通用性计算模型，从而以任意条件高精度模拟光放大器的光放大特性。

公开(公告)号：US20080013904A1

公开(公告)日：2008-01-17

申请号：US11847663

申请日：2007-08-30

申请人： Masato Nishihara ,  Etsuko Hayashi ,  Shinya Inagaki

发明人： Masato Nishihara ,  Etsuko Hayashi ,  Shinya Inagaki

IPC分类号： G02B6/02

CPC分类号： H01S3/06708 ,  C03B37/01248 ,  C03B37/01433 ,  C03B37/01838 ,  C03B2201/34 ,  C03B2203/29 ,  G02B6/03633 ,  H01S3/06729 ,  H01S3/094003

摘要： An optical fiber includes: a first core portion doped with rare earth ions; a second core portion having a lower refractive index than that of the first core portion, provided along an outer circumference of the first core portion, and doped with the rare earth ions; and a clad portion having a lower refractive index than that of the second core portion and provided along an outer circumference of the second core portion, and is configured such that a concentration of the rare earth ions added to the second core portion is higher than that to the first core portion. With this configuration, it is possible to suppress an amount of FWM crosstalk in an optical amplification by decreasing the length of a fiber while alleviating efficiency deterioration due to concentration quenching.

摘要翻译： 光纤包括：掺杂有稀土离子的第一芯部分; 具有比所述第一芯部的折射率低的第二芯部，沿着所述第一芯部的外周设置并掺杂有所述稀土离子; 以及包层部，其具有比所述第二芯部的折射率低的折射率，并且沿着所述第二芯部的外周设置，并且被配置为使得添加到所述第二芯部的所述稀土离子的浓度高于 到第一核心部分。 通过这种结构，可以通过减少纤维的长度同时减轻由于浓度骤冷引起的效率劣化来抑制光放大中的FWM串扰的量。

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。

公开(公告)号：US20050254119A1

公开(公告)日：2005-11-17

申请号：US11187938

申请日：2005-07-25

申请人： Masato Nishihara ,  Yasushi Sugaya ,  Etsuko Hayashi

发明人： Masato Nishihara ,  Yasushi Sugaya ,  Etsuko Hayashi

IPC分类号： H01S3/00 ,  H01S3/067 ,  H01S3/10 ,  H01S3/16

CPC分类号： H04B10/0731 ,  H01S3/06716 ,  H01S3/06754 ,  H01S3/1608

摘要： An amplification medium simulation apparatus comprises a basic data retaining unit 21, an input signal beam information retaining unit 22, and a simulation executing unit 31 approximating and calculating an output signal beam power at each signal beam wavelength outputted from the amplification medium involving a fluctuation in ion population at the metastable energy level in the amplification medium due to input of the input signal beam, by using contents retained in the basic data retaining unit 21 and the input signal beam information retaining unit 22, and outputting a result of calculation as a result of simulation of performance of the amplification medium.

摘要翻译： 放大介质模拟装置包括基本数据保持单元21，输入信号波束信息保持单元22和仿真执行单元31，该模拟执行单元31近似并计算从扩展介质输出的每个信号波长的输出信号波束功率， 由于输入信号光束的输入，通过使用保存在基本数据保持单元21和输入信号光束信息保持单元22中的内容，在放大介质中的亚稳态能级的离子群，并输出计算结果 的放大介质的性能仿真。