专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明申请

US20050225843A1 Control method of optical fiber amplifier and optical transmission system 有权
标题翻译：光纤放大器和光传输系统的控制方法
公开(公告)号：US20050225843A1
公开(公告)日：2005-10-13
申请号：US10929539
申请日：2004-08-31
申请人： Yasushi Sugaya , Shinichirou Muro , Etsuko Hayashi
发明人： Yasushi Sugaya , Shinichirou Muro , Etsuko Hayashi
IPC分类号： G02F1/35 , H01S3/00 , H01S3/067 , H01S3/094 , H01S3/0941 , H01S3/10 , H01S3/13 , H01S3/16 , H01S3/30 , H04B10/07 , H04B10/2537 , H04B10/29 , H04B10/294 , H04J14/00 , H04J14/02
CPC分类号： H04B10/294 , H01S3/06754 , H01S3/06758 , H01S3/094011 , H01S3/094096 , H01S3/0941 , H01S3/1305 , H01S3/1608 , H01S3/302 , H04B10/2916
摘要： In one of control methods of a bidirectional pumping type Raman amplifier according to the present invention, the power of a pumping light supplied to a rare-earth element doped optical fiber is increased or decreased, and a transmission wavelength characteristic of a dynamic gain equalizer is controlled according to a change in a gain wavelength characteristic occurring due to the increase or decrease of the power of the pumping light, to thereby extend a signal light band to either a short wavelength side or a long wavelength side. As a result, it becomes possible to realize a signal light band extension service at a low cost. Moreover, in another control method of the present invention, in a condition where the supply of backward pumping light to the transmission path fiber is shut off, a ratio of a change in the output power of the signal light to a change in the power of the forward pumping light is obtained, and the forward pumping light power is optimized in accordance with this ratio, to obtain a desired level diagram irrespective of a lump loss on the transmission path fiber.
摘要翻译：在根据本发明的双向泵浦型拉曼放大器的控制方法之一中，提供给稀土元素掺杂光纤的泵浦光的功率增加或减小，并且动态增益均衡器的透射波长特性为根据由于泵浦光的功率的增加或减少而产生的增益波长特性的变化来控制，从而将信号光带扩展到短波长侧或长波长侧。结果，可以以低成本实现信号光带扩展服务。此外，在本发明的另一种控制方法中，在向传输路径光纤供给反向泵浦光的状态被切断的情况下，信号光的输出功率的变化与功率变化的比率获得正向泵浦光，并且根据该比率优化正向泵浦光功率，以获得期望的电平图，而不管传输路径光纤上的块损耗。

42. 发明授权

US06738184B2 Optical amplifier for amplifying multi-wavelength light 有权
标题翻译：用于放大多波长光的光放大器
公开(公告)号：US06738184B2
公开(公告)日：2004-05-18
申请号：US09949873
申请日：2001-09-12
申请人： Etsuko Hayashi , Yasushi Sugaya , Yoshihito Onoda , Keiko Sasaki
发明人： Etsuko Hayashi , Yasushi Sugaya , Yoshihito Onoda , Keiko Sasaki
IPC分类号： H04B1012
CPC分类号： H01S3/06754 , H01S3/094011
摘要： Optical signals (multi-wavelength light) are guided to an EDF. The EDF is supplied with pump light generated by a first and a second pump light sources. Dummy light is generated by a dummy light source and supplied to the EDF. The wavelength of the dummy light is shorter than a wavelength range in which the optical signals are allocated.
摘要翻译：光信号（多波长光）被引导到EDF。 EDF被提供有由第一和第二泵浦光源产生的泵浦光。虚拟光由虚拟光源产生并提供给EDF。虚拟光的波长比分配光信号的波长范围短。

43. 发明授权

US07212335B2 Apparatus and method for amplification medium performance simulation, and optical amplifier 有权
标题翻译：用于放大介质性能仿真的装置和方法，以及光放大器
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。

44. 发明授权

US07154664B2 Apparatus and method for amplification medium performance simulation, and optical amplifier 有权
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.

45. 发明授权

US07072100B2 Optical amplifier and gain tilt compensation method 失效
标题翻译：光放大器和增益倾斜补偿方法
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。

46. 发明授权

US06577437B2 Optical amplification apparatus utilizing Raman amplification and controlling method thereof 有权
公开(公告)号：US06577437B2
公开(公告)日：2003-06-10
申请号：US10084936
申请日：2002-03-01
申请人： Yasushi Sugaya , Tomoto Tanaka , Etsuko Hayashi
发明人： Yasushi Sugaya , Tomoto Tanaka , Etsuko Hayashi
IPC分类号： F21V904
CPC分类号： H04B10/2916 , H01S3/06758 , H01S3/094096 , H01S3/10015 , H01S3/1301 , H01S3/1608 , H01S3/2375 , H01S3/30 , H01S3/302 , H01S2301/02 , H01S2301/04 , H01S2302/02 , H04B2210/258
摘要： The present invention aims at providing an optical amplification apparatus for improving noise characteristics by controlling an amplification operation by assuming a noise figure of the overall apparatus and by taking influences of noise light due to Raman amplification into consideration, and a controlling method of the optical amplification apparatus. The optical amplification apparatus according to the present invention comprises first optical amplifying means for Raman amplifying signal light by supplying excitation light to a Raman amplification medium, second amplifying means for amplifying signal light output from the first optical amplifying means, target value setting means for setting a target value that minimizes the noise figure of the overall apparatus as to input light power of the second optical amplifying means, and excitation light controlling means for controlling an excitation light supply condition of the first optical amplifying means in accordance with the target value set by the target value setting means. Consequently, the noise characteristics of the overall apparatus can be optimized by the control inside the own apparatus and excellent noise characteristics can be accomplished.

47. 发明授权

US06388801B1 Optical amplification apparatus utilizing Raman amplification and controlling method thereof 有权
标题翻译：利用拉曼放大的光学放大装置及其控制方法
公开(公告)号：US06388801B1
公开(公告)日：2002-05-14
申请号：US09839224
申请日：2001-04-23
申请人： Yasushi Sugaya , Tomoto Tanaka , Etsuko Hayashi
发明人： Yasushi Sugaya , Tomoto Tanaka , Etsuko Hayashi
IPC分类号： H01S300
CPC分类号： H04B10/2916 , H01S3/06758 , H01S3/094096 , H01S3/10015 , H01S3/1301 , H01S3/1608 , H01S3/2375 , H01S3/30 , H01S3/302 , H01S2301/02 , H01S2301/04 , H01S2302/02 , H04B2210/258
摘要： The present invention aims at providing an optical amplification apparatus for improving noise characteristics by controlling an amplification operation by assuming a noise figure of the overall apparatus and by taking influences of noise light due to Raman amplification into consideration, and a controlling method of the optical amplification apparatus. The optical amplification apparatus according to the present invention comprises first optical amplifying means for Raman amplifying signal light by supplying excitation light to a Raman amplification medium, second amplifying means for amplifying signal light output from the first optical amplifying means, target value setting means for setting a target value that minimizes the noise figure of the overall apparatus as to input light power of the second optical amplifying means, and excitation light controlling means for controlling an excitation light supply condition of the first optical amplifying means in accordance with the target value set by the target value setting means. Consequently, the noise characteristics of the overall apparatus can be optimized by the control inside the own apparatus and excellent noise characteristics can be accomplished.
摘要翻译：本发明的目的在于提供一种通过考虑整个装置的噪声系数并考虑由拉曼放大引起的噪声光的影响来控制放大操作来提高噪声特性的光放大装置，以及光放大的控制方法仪器。根据本发明的光放大装置包括通过向拉曼放大介质提供激发光来拉曼放大信号光的第一光放大装置，用于放大从第一光放大装置输出的信号光的第二放大装置，用于设定目标值使得整个装置的噪声系数最小化，以便输入第二光放大装置的光功率;激励光控制装置，用于根据由第一光放大装置设定的目标值来控制第一光放大装置的激发光供应状态目标值设定单元。因此，通过本装置内部的控制可以优化整体装置的噪声特性，可以实现优异的噪声特性。

48. 发明申请

US20090219609A1 Optical amplifier provided with control function of pumping light, and optical transmission system using the same 有权
标题翻译：光放大器提供了泵浦光的控制功能，以及使用它的光传输系统
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。

49. 发明授权

US07400441B2 Optical amplifier, optical amplification repeater and pump light supply control method 有权
标题翻译：光放大器，光放大中继器和泵浦光源控制方式
公开(公告)号：US07400441B2
公开(公告)日：2008-07-15
申请号：US11831252
申请日：2007-07-31
申请人： Shinichirou Muro , Yasushi Sugaya , Etsuko Hayashi
发明人： Shinichirou Muro , Yasushi Sugaya , Etsuko Hayashi
IPC分类号： H01S3/00
CPC分类号： H04B10/2916 , H01S3/06754 , H01S3/094003 , H01S3/094061 , H01S3/10015 , H01S3/1301 , H01S3/2375 , H01S3/302 , H01S2301/04 , H04B10/2942 , H04B2210/003 , H04J14/0221
摘要： There is provided an optical amplifier including a Raman amplification medium, a rare earth doped fiber located at a latter stage of the Raman amplification medium, a first pump light outputting unit for outputting pump light with a plurality of wavelengths, a variable distribution element for distributing the pump light with the plurality of wavelengths, outputted from the first pump light outputting unit, to the Raman amplification medium and the rare earth doped fiber in a variable distribution ratio for each wavelength, and a control unit for individually controlling the distribution ratio of the pump light with the plurality of wavelengths in the variable distribution element and the power of the pump light with the plurality of wavelengths from the first pump light outputting unit in accordance with a wavelength arrangement of each of signal lights wavelength-multiplexed into the wavelength-multiplexed signal light.
摘要翻译：提供了一种光放大器，包括拉曼放大介质，位于拉曼放大介质的后级的稀土掺杂光纤，用于输出多个波长的泵浦光的第一泵浦光输出单元，用于分配的可变分配元件将从第一泵浦光输出单元输出的具有多个波长的泵浦光以每个波长的可变分配比率映射到拉曼放大介质和稀土掺杂光纤，以及控制单元，用于分别控制可变分配元件中的多个波长的泵浦光和来自第一泵浦光输出单元的多个波长的泵浦光的功率根据波长多路复用到波长多路复用的信号光的波长排列信号灯。

50. 发明申请

US20070268569A1 OPTICAL AMPLIFIER, OPTICAL AMPLIFICATION REPEATER AND PUMP LIGHT SUPPLY CONTROL METHOD 有权
标题翻译：光放大器，光放大器和泵浦光源控制方法
公开(公告)号：US20070268569A1
公开(公告)日：2007-11-22
申请号：US11831252
申请日：2007-07-31
申请人： Shinichirou MURO , Yasushi Sugaya , Etsuko Hayashi
发明人： Shinichirou MURO , Yasushi Sugaya , Etsuko Hayashi
IPC分类号： H01S3/30 , H01S3/00
CPC分类号： H04B10/2916 , H01S3/06754 , H01S3/094003 , H01S3/094061 , H01S3/10015 , H01S3/1301 , H01S3/2375 , H01S3/302 , H01S2301/04 , H04B10/2942 , H04B2210/003 , H04J14/0221
摘要： There is provided an optical amplifier including a Raman amplification medium, a rare earth doped fiber located at a latter stage of the Raman amplification medium, a first pump light outputting unit for outputting pump light with a plurality of wavelengths, a variable distribution element for distributing the pump light with the plurality of wavelengths, outputted from the first pump light outputting unit, to the Raman amplification medium and the rare earth doped fiber in a variable distribution ratio for each wavelength, and a control unit for individually controlling the distribution ratio of the pump light with the plurality of wavelengths in the variable distribution element and the power of the pump light with the plurality of wavelengths from the first pump light outputting unit in accordance with a wavelength arrangement of each of signal lights wavelength-multiplexed into the wavelength-multiplexed signal light.
摘要翻译：提供了一种光放大器，包括拉曼放大介质，位于拉曼放大介质的后级的稀土掺杂光纤，用于输出多个波长的泵浦光的第一泵浦光输出单元，用于分配的可变分配元件将从第一泵浦光输出单元输出的具有多个波长的泵浦光以每个波长的可变分配比率映射到拉曼放大介质和稀土掺杂光纤，以及控制单元，用于分别控制可变分配元件中的多个波长的泵浦光和来自第一泵浦光输出单元的多个波长的泵浦光的功率根据波长多路复用到波长多路复用的信号光的波长排列信号灯。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式