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1. 发明公开

EP2315073A1 Pump light source for Raman amplification and Raman amplifier comprising the same 有权
标题翻译： Ramanverstärkerund Methode zurRamanverstärkung
公开(公告)号：EP2315073A1
公开(公告)日：2011-04-27
申请号：EP10075659.2
申请日：1999-07-23
申请人： The Furukawa Electric Co., Ltd.
发明人： Akasaka, Youichi , Emori, Yoshihiro , Namiki, Shu
IPC分类号： G02F1/35 , H04B10/17 , H01S3/30
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/06758 , H01S3/0912 , H01S3/094011 , H01S3/094015 , H01S3/094096 , H01S3/10007 , H01S3/10015 , H01S3/2375 , H01S3/2383 , H01S2301/04 , H04B10/2916
摘要： Embodiments of the present invention relate to a pump light source for Raman amplification, and a Raman amplifier. The pump light source comprising a semiconductor laser (3), and an external resonator (5) arranged to keep the predetermined central wavelength of the laser light emitted from said semiconductor laser notwithstanding fluctuation of a driving current of said semiconductor laser, wherein a Raman gain profile is controlled by adjusting the driving current of said semiconductor laser.
摘要翻译：本发明的实施例涉及一种用于拉曼放大的泵浦光源和拉曼放大器。泵浦光源包括半导体激光器（3）和外部谐振器（5），其布置成保持从所述半导体激光器发射的激光的预定中心波长，尽管所述半导体激光器的驱动电流波动，其中拉曼增益通过调节所述半导体激光器的驱动电流来控制轮廓。

2. 发明公开

EP1137128A3 Optical component 审中-公开
标题翻译： Optische Komponente
公开(公告)号：EP1137128A3
公开(公告)日：2004-08-04
申请号：EP01302223.1
申请日：2001-03-12
申请人： The Furukawa Electric Co., Ltd.
发明人： Tsuda, Toshiaki , Mizuno, Kazuyo , Ohta, Toshihiko , Namiki, Shu , Yodo, Shigehito , Mimura, Yu , Emori, Yoshihiro
IPC分类号： H01S3/067 , G02B6/16
CPC分类号： H01S3/067 , H01S3/10023
摘要： Wavelength multiplex transmission is realized in which the temperature dependency-of an EDFA is compensated for in relation to the wavelengths which are used. A first and a second long-period grating which have different periods from each other are formed in an optical fiber, ensuring that the peak wavelength of a waveform representing a optical transmission loss characteristic of the first long-period grating side is located on the shorter wavelength side than a transmission band and a peak wavelength of a waveform representing a optical transmission loss characteristic of the second long-period grating side is located on the longer wavelength side within the transmission band. The waveforms representing the optical transmission loss characteristics of the respective long-period gratings shift depending on the temperature, a loss deviation characteristic of the first long-period grating allows a optical transmission loss value on the shorter wavelength side than the transmission band to increase as the temperature increases so that a large gain deviation characteristic of an optical amplifier is compensated for, a loss deviation characteristic of the second long-period grating compensates for a residual gain deviation characteristic on the longer wavelength side within the transmission band, whereby the temperature dependent gain characteristic of the optical amplifier is compensated for within the transmission band.
摘要翻译：实现了相对于所使用的波长补偿EDFA的温度依赖性的波长多路复用传输。在光纤中形成具有不同周期的第一和第二长周期光栅，确保表示第一长周期光栅侧的光传输损耗特性的波形的峰值波长位于较短的并且表示第二长周期光栅侧的光传输损耗特性的波形的峰值波长位于传输频带内的较长波长侧。表示相应的长周期光栅的光传输损耗特性的波形根据温度而变化，第一长周期光栅的损耗偏差特性允许在比传输频带更短波长侧的光传输损耗值增加为温度升高，从而补偿了光放大器的大的增益偏差特性，第二长周期光栅的损耗偏差特性补偿了透射带内较长波长侧的残余增益偏差特性，从而使温度依赖光放大器的增益特性在传输频带内被补偿。

3. 发明公开

EP2624048A1 Optical waveform shaper 审中-公开
标题翻译： Optische Wellenformungsvorrichtung
公开(公告)号：EP2624048A1
公开(公告)日：2013-08-07
申请号：EP13164171.4
申请日：2003-11-21
申请人： The Furukawa Electric Co., Ltd.
发明人： Igarashi, Koji , Emori, Yoshihiro , Oguri, Atsushi , Namiki, Shu , Aso, Osamu , Tadakuma, Masateru
IPC分类号： G02F1/35 , G02F1/365
CPC分类号： G02F1/365 , G02F1/3513 , G02F2203/17 , G02F2203/26 , H01S5/0623 , H04B10/25077 , H04B10/291
摘要： The present invention provides a waveform shaper comprising a Raman gain medium (HNLF) having a nonlinearity coefficient which is 5 W -1 km -1 or more; a pumping LD; and a coupler (WDM) for inputting output light from said pumping LD into said Raman gain medium, said waveform shaper being for shaping or compressing an input pulse.
摘要翻译：本发明提供一种波形整形器，其包括具有5W -1 km -1以上的非线性系数的拉曼增益介质（HNLF）泵送LD; 以及用于将来自所述泵浦LD的输出光输入到所述拉曼增益介质中的耦合器（WDM），所述波形整形器用于对输入脉冲进行整形或压缩。

4. 发明公开

EP1562315A1 Pump light source device for optimal raman amplification and optical raman amplification system using the same 有权
标题翻译：用于最佳拉曼放大的泵浦光源装置和使用其的光学拉曼放大系统
公开(公告)号：EP1562315A1
公开(公告)日：2005-08-10
申请号：EP05009196.6
申请日：2002-01-31
申请人： THE FURUKAWA ELECTRIC CO., LTD.
发明人： Emori, Yoshihiro , Matsushita, Shunichi
IPC分类号： H04B10/17 , H01S3/30
CPC分类号： H04B10/2916 , H01S3/005 , H01S3/0064 , H01S3/06754 , H01S3/06758 , H01S3/094011 , H01S3/094073 , H01S3/09408 , H01S3/0941 , H01S3/30 , H01S3/302
摘要： A pump light source device for outputting a pump light to amplify signal lightwaves transmitted into an optical fiber utilizing Raman scattering comprises a pair of pump light sources (71, 72), a polarization beam combiner (8) or a polarization-maintaining optical beam coupler (11) to which two lightwaves are input and where the two lightwaves are combined to output a composite lightwave having a polarization state the same as or orthogonal to that of the input lightwaves; and a depolarizer (9) adapted to depolarize and output the input lightwaves with lower degree of polarization, wherein an optical isolator is provided in one or more of the following: an optical path on the input side of the depolarizer (9), an optical line on the output side of the depolarizer (9), and the interior of the depolarizer (9).
摘要翻译：用于输出泵浦光以放大利用拉曼散射传输到光纤中的信号光波的泵浦光源装置包括一对泵浦光源（71,72），偏振光束组合器（8）或保偏光束耦合器（11），其中输入两个光波，并且其中两个光波被组合以输出具有与输入光波的偏振状态相同或正交的偏振状态的合成光波; 和适用于去偏振并输出具有较低偏振度的输入光波的去偏振器（9），其中光学隔离器设置在以下一项或多项中：去偏振器（9）的输入侧上的光路，光学在去偏振器（9）的输出侧的线和去偏振器（9）的内部。

5. 发明公开

EP2755289A2 WDM, multiple wavelength pumped, Raman amplifier 审中-公开
标题翻译： Raman-VerstärkerzumWellenlängenmultiplexenmitMultiwellenlängenPumpquelle
公开(公告)号：EP2755289A2
公开(公告)日：2014-07-16
申请号：EP14154548.3
申请日：2001-01-11
申请人： The Furukawa Electric Co., Ltd.
发明人： Emori, Yoshihiro , Namiki, Shu
IPC分类号： H01S3/30 , H01S3/094 , H01S3/23 , H04B10/291
CPC分类号： H04B10/2916 , H01S3/06766 , H01S3/0677 , H01S3/09408 , H01S3/094096 , H01S3/10007 , H01S3/302 , H01S2301/04
摘要： A Raman amplifier comprises a pump source (10) configured to produce pumping wavelengths divided into a short wavelength side group and a long wavelength side group, a boundary between the short wavelength side group and the long wavelength side group being defined by a longest interval between any two adjacent pumping wavelengths. The short wavelength side group includes two or more pumping wavelengths having substantially equidistant intervals therebetween, e.g. 1 THz, that are shorter than the longest interval, e.g. 2 THz or more. The long wavelength side group includes not more than two pumping wavelengths. The pump source (10) is configured to adjust a level of at least one of the short wavelength side group and the long wavelength side group so as to impart a predetermined tilt to a composite gain profile.
摘要翻译：拉曼放大器包括被配置为产生被分成短波长侧组和长波长侧组的泵浦波长的泵浦源（10），短波长侧组与长波长侧组之间的边界由任何两个相邻的泵浦波长。短波长侧组包括两个或更多个泵浦波长，其间具有基本上等距的间隔，例如， 1 THz，其比最长间隔短，例如 2 THz以上。长波长侧组包括不超过两个泵浦波长。泵浦源（10）被配置为调整短波长侧组和长波长侧组中的至少一个的电平，以便对复合增益分布施加预定的倾斜。

6. 发明公开

EP2306605A1 Pumping unit for a Raman amplifier and Raman amplifier comprising the same 有权
标题翻译： PumpeinheitfüreinenRamanverstärkerundRamanverstärker，der dieselbe aufweist
公开(公告)号：EP2306605A1
公开(公告)日：2011-04-06
申请号：EP10075602.2
申请日：1999-07-23
申请人： The Furukawa Electric Co., Ltd.
发明人： Akasaka, Youichi , Emori, Yoshihiro , Namiki, Shu
IPC分类号： H01S3/30 , H04B10/17
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/06758 , H01S3/0912 , H01S3/094011 , H01S3/094015 , H01S3/094096 , H01S3/10007 , H01S3/10015 , H01S3/2375 , H01S3/2383 , H01S2301/04 , H04B10/2916
摘要： Embodiments of the present invention relate to a pumping unit for a Raman amplifier (9) and to a Raman amplifier, the pumping unit comprising: a pumping light source (1,51) that includes a plurality of semiconductor lasers (3), the plurality of semiconductor lasers arranged to emit laser lights each having a different predetermined central wavelength; a plurality of external resonators (5) configured to keep the predetermined central wavelengths of the laser lights substantially constant notwithstanding fluctuation of driving currents of the plurality of semiconductor lasers; and a laser light intensity control unit (15, 24) configured to control a gain profile of the Raman amplifier by controlling intensities of the laser lights emitted from the plurality of semiconductor lasers, the predetermined central wavelengths of the laser lights being kept substantially constant by the plurality of external resonators.
摘要翻译：本发明的实施例涉及一种用于拉曼放大器（9）和拉曼放大器的泵送单元，所述泵送单元包括：泵送光源（1,51），其包括多个半导体激光器（3），所述多个半导体激光器被布置成发射各自具有不同的预定中心波长的激光; 尽管多个半导体激光器的驱动电流的波动，多个外部谐振器（5）被配置为保持激光的预定中心波长基本上恒定; 以及激光强度控制单元（15,24），其配置为通过控制从所述多个半导体激光器发射的激光的强度来控制所述拉曼放大器的增益分布，所述激光的预定中心波长基本上保持恒定，多个外部谐振器。

7. 发明授权

EP2315073B1 Raman amplifier and Raman amplification method 有权
标题翻译：拉曼放大器和方法，用于拉曼放大
公开(公告)号：EP2315073B1
公开(公告)日：2014-12-31
申请号：EP10075659.2
申请日：1999-07-23
申请人： The Furukawa Electric Co., Ltd.
发明人： Akasaka, Youichi , Emori, Yoshihiro , Namiki, Shu
IPC分类号： H01S3/30 , H04B10/29 , H01S3/067
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/06758 , H01S3/0912 , H01S3/094011 , H01S3/094015 , H01S3/094096 , H01S3/10007 , H01S3/10015 , H01S3/2375 , H01S3/2383 , H01S2301/04 , H04B10/2916

8. 发明授权

EP2306605B1 Pumping unit for a Raman amplifier and Raman amplifier comprising the same 有权
标题翻译：包括用于喇曼放大器泵送单元和具有相同的拉曼放大器
公开(公告)号：EP2306605B1
公开(公告)日：2012-05-23
申请号：EP10075602.2
申请日：1999-07-23
申请人： The Furukawa Electric Co., Ltd.
发明人： Akasaka, Youichi , Emori, Yoshihiro , Namiki, Shu
IPC分类号： H01S3/30 , H04B10/17
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/06758 , H01S3/0912 , H01S3/094011 , H01S3/094015 , H01S3/094096 , H01S3/10007 , H01S3/10015 , H01S3/2375 , H01S3/2383 , H01S2301/04 , H04B10/2916

9. 发明公开

EP2306604A2 Optical repeater and Raman amplification method 有权
标题翻译： OptischerZwischenverstärkerder einenRamanverstärkeraufweist
公开(公告)号：EP2306604A2
公开(公告)日：2011-04-06
申请号：EP10075600.6
申请日：1999-07-23
申请人： The Furukawa Electric Co., Ltd.
发明人： Akasaka, Youichi , Emori, Yoshihiro , Namiki, Shu
IPC分类号： H01S3/30 , H04B10/17
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/06758 , H01S3/0912 , H01S3/094011 , H01S3/094015 , H01S3/094096 , H01S3/10007 , H01S3/10015 , H01S3/2375 , H01S3/2383 , H01S2301/04 , H04B10/2916
摘要： Embodiments of the present invention relate to an optical repeater and a method for Raman-amplifying a signal light. The optical repeater comprises a rare-earth doped fiber amplifiers (10), with substantially fixed amplifying gain characteristics, having a first amplifying optical fiber including rare-earth doped optical fiber; a Raman amplifier (9), which has a second amplifying optical fiber and pumping units (1) for supplying pumping light having one or more central wavelengths to the second amplifying optical fiber, connected to a front stage of the rare-earth doped fiber amplifiers, the Raman amplifier being configured to have a variable gain profile by controlling intensity of the pumping light outputted from the pumping unit; and a controlling unit (15, 24) for controlling the intensity of the output light which is to be outputted to the rare-earth doped fiber amplifier by compensating for fluctuation of intensity in the input light being inputted to the Raman amplifier by controlling the gain profile of the Raman amplifier.
摘要翻译：本发明的实施例涉及光中继器和用于信号光的拉曼放大的方法。光中继器包括具有基本上固定的放大增益特性的稀土掺杂光纤放大器（10），具有包括稀土掺杂光纤的第一放大光纤; 具有第二放大光纤的拉曼放大器（9）和用于将具有一个或多个中心波长的泵浦光提供给第二放大光纤的泵单元（1），连接到稀土掺杂光纤放大器的前级拉曼放大器被配置为通过控制从泵送单元输出的泵浦光的强度来具有可变增益分布; 以及控制单元（15,24），用于通过补偿输入到拉曼放大器的输入光的波动来控制要输出到稀土掺杂光纤放大器的输出光的强度，控制增益拉曼放大器的轮廓。

10. 发明公开

EP1137128A2 Optical component 审中-公开
标题翻译：光学部件
公开(公告)号：EP1137128A2
公开(公告)日：2001-09-26
申请号：EP01302223.1
申请日：2001-03-12
申请人： The Furukawa Electric Co., Ltd.
发明人： Tsuda, Toshiaki , Mizuno, Kazuyo , Ohta, Toshihiko , Namiki, Shu , Yodo, Shigehito , Mimura, Yu , Emori, Yoshihiro
IPC分类号： H01S3/067
CPC分类号： H01S3/067 , H01S3/10023
摘要： Wavelength multiplex transmission is realized in which the temperature dependency-of an EDFA is compensated for in relation to the wavelengths which are used. A first and a second long-period grating which have different periods from each other are formed in an optical fiber, ensuring that the peak wavelength of a waveform representing a optical transmission loss characteristic of the first long-period grating side is located on the shorter wavelength side than a transmission band and a peak wavelength of a waveform representing a optical transmission loss characteristic of the second long-period grating side is located on the longer wavelength side within the transmission band. The waveforms representing the optical transmission loss characteristics of the respective long-period gratings shift depending on the temperature, a loss deviation characteristic of the first long-period grating allows a optical transmission loss value on the shorter wavelength side than the transmission band to increase as the temperature increases so that a large gain deviation characteristic of an optical amplifier is compensated for, a loss deviation characteristic of the second long-period grating compensates for a residual gain deviation characteristic on the longer wavelength side within the transmission band, whereby the temperature dependent gain characteristic of the optical amplifier is compensated for within the transmission band.

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