公开(公告)号：US20100157416A1

公开(公告)日：2010-06-24

申请号：US12659027

申请日：2010-02-23

申请人： Yasushi Sugaya ,  Etsuko Hayashi ,  Masato Nishihara

发明人： Yasushi Sugaya ,  Etsuko Hayashi ,  Masato Nishihara

IPC分类号： H01S3/30

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：US20090219609A1

公开(公告)日：2009-09-03

申请号：US12320938

申请日：2009-02-09

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： H01S3/30

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：US07212335B2

公开(公告)日：2007-05-01

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 ,  H04B10/08

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。

公开(公告)号：US07154664B2

公开(公告)日：2006-12-26

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 ,  H04B10/08

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.

公开(公告)号：US07072100B2

公开(公告)日：2006-07-04

申请号：US10103751

申请日：2002-03-25

申请人： Masato Nishihara ,  Yasushi Sugaya ,  Etsuko Hayashi

发明人： Masato Nishihara ,  Yasushi Sugaya ,  Etsuko Hayashi

IPC分类号： H01S3/00

CPC分类号： H04B10/2941 ,  H01S3/0672 ,  H01S3/06758 ,  H01S3/06775 ,  H01S3/10023 ,  H01S3/1608 ,  H01S3/173 ,  H01S2301/02 ,  H01S2301/04 ,  H04B10/2525 ,  H04B10/2916 ,  H04B2210/003 ,  H04B2210/258

摘要： The optical amplifier realizes EDFA amplification of optical signals in new bands (the S+- and S-bands), at wavelengths of 1450 to 1530 nm. The amplifier uses multiple erbium-doped fibers to amplify optical signals at wavelengths of 1450 to 1530 nm. Each of the multiple optical filters is interposed between the individual erbium-doped fibers. The sum of the transmission characteristics of the multiple filters is identical to an inverted EDF wavelength gain characteristic at wavelengths of 1450 to 1530 nm which is then shifted to the direction that the transmission increases.

摘要翻译： 光放大器实现1450至1530nm波长的新波段（S + S + S波段和S波段）光信号的EDFA放大。 放大器使用多个掺铒光纤放大1450至1530 nm波长的光信号。 多个滤光器中的每一个插入在各个掺铒光纤之间。 多个滤波器的传输特性的总和与在1450至1530nm的波长处的反向EDF波长增益特性相同，然后将其移动到传输增加的方向。

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：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。

公开(公告)号：US08054455B2

公开(公告)日：2011-11-08

申请号：US12659027

申请日：2010-02-23

申请人： Yasushi Sugaya ,  Etsuko Hayashi ,  Masato Nishihara

发明人： Yasushi Sugaya ,  Etsuko Hayashi ,  Masato Nishihara

IPC分类号： H01S3/00

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：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：US07843631B2

公开(公告)日：2010-11-30

申请号：US11859842

申请日：2007-09-24

申请人： Miki Onaka ,  Hideaki Sugiya ,  Yasushi Sugaya ,  Etsuko Hayashi

发明人： Miki Onaka ,  Hideaki Sugiya ,  Yasushi Sugaya ,  Etsuko Hayashi

IPC分类号： H04B10/17 ,  H04B10/12

CPC分类号： H01S3/1301 ,  H01S3/06754 ,  H01S3/10015 ,  H01S3/1305 ,  H04B10/296

摘要： The present invention relates to an apparatus for controlling a gain of an optical amplifier, and the apparatus comprises a target gain calculating unit for calculating, as a target gain for an optical amplifier, a value obtained by increasing or decreasing a gain (output) of signal light as the number of wavelengths of wavelength-multiplexed signal light decreases, and a control signal outputting unit for outputting a control signal to the optical amplifier so as to amplify the wavelength-multiplexed signal light with the target gain calculated by the target gain calculating unit. This promptly suppresses a fluctuation of signal light level, particularly, a fluctuation of output light power of an optical amplifier stemming from a variation of the number of wavelengths of wavelength-multiplexed signal light.

摘要翻译： 本发明涉及一种用于控制光放大器的增益的装置，该装置包括：目标增益计算单元，用于计算通过增加或减少增益（输出）获得的值作为光放大器的目标增益 波长多路复用信号光的波长数的信号光减少;以及控制信号输出单元，用于向光放大器输出控制信号，以便以目标增益计算的目标增益放大波分复用信号光 单元。 这迅速地抑制信号光电平的波动，特别是由波长多路复用信号光的波长数的变化导致的光放大器的输出光功率的波动。