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1. 发明授权

US07054060B2 Raman amplification system utilizing bi-directional pumping 有权
标题翻译：拉曼放大系统采用双向泵浦
公开(公告)号：US07054060B2
公开(公告)日：2006-05-30
申请号：US10998173
申请日：2004-11-29
申请人： Rainer Hainberger , Takafumi Terahara
发明人： Rainer Hainberger , Takafumi Terahara
IPC分类号： H01S3/00
CPC分类号： H04B10/2916 , H01S3/06754 , H01S3/06766 , H01S3/0677 , H01S3/094011 , H01S3/094096 , H01S3/302 , H04B10/2563
摘要： In an optical transmission system utilizing bi-directional Raman amplification, propagation directions and wavelengths of Raman pumps are chosen such that four-wave mixing products among the pump wavelengths are minimized in a signal wavelength region.
摘要翻译：在利用双向拉曼放大的光传输系统中，选择拉曼泵的传播方向和波长，使得泵浦波长中的四波混频产物在信号波长区域中被最小化。

2. 发明授权

US06934454B2 Distributed optical amplifying apparatus, optical communication station, optical communication system, and optical fiber cable 有权
公开(公告)号：US06934454B2
公开(公告)日：2005-08-23
申请号：US10755384
申请日：2004-01-13
申请人： Takafumi Terahara , Rainer Hainberger , Takeshi Hoshida
发明人： Takafumi Terahara , Rainer Hainberger , Takeshi Hoshida
IPC分类号： G02F1/35 , H01S3/06 , H01S3/067 , H01S3/10 , H01S3/30 , H04B10/077 , H04B10/079 , H04B10/2507 , H04B10/2519 , H04B10/2525 , H04B10/2537 , H04B10/29 , H04B10/294 , H04B10/297 , G02B6/00
CPC分类号： H04B10/2916 , G02B6/02252 , G02B6/02266 , G02B6/262 , G02B6/29377 , H01S3/302 , H04B10/25253 , H04B2210/003
摘要： An optical fiber transmission line including first, second and third optical fibers connected together so that light travels through the transmission line from the first optical fiber, then through the second optical fiber and then through the third optical fiber. The first, second and third optical fibers have first, second and third characteristic values, respectively. The second characteristic value is larger than the first characteristic value and the third characteristic value. The characteristic value of a respective optical fiber being a nonlinear refractive index of the optical fiber divided by an effective cross section of the optical fiber. Pump light is supplied to the transmission line so that Raman amplification occurs in the transmission line as an optical signal travels through the transmission line.

3. 发明申请

US20060251364A1 Optical fiber cable 有权
标题翻译：光纤电缆
公开(公告)号：US20060251364A1
公开(公告)日：2006-11-09
申请号：US11480857
申请日：2006-07-06
申请人： Takafumi Terahara , Rainer Hainberger , Takeshi Hoshida
发明人： Takafumi Terahara , Rainer Hainberger , Takeshi Hoshida
IPC分类号： G02B6/44
CPC分类号： H04B10/2916 , G02B6/02252 , G02B6/02266 , G02B6/262 , G02B6/29377 , H01S3/302 , H04B10/25253 , H04B2210/003
摘要： An optical fiber cable including first, second and third optical fibers connected together so that light traveling through the cable travels through the first optical fiber, then through the second optical fiber and then through the third optical fiber. The second optical fiber has a negative dispersion value. The first and third optical fibers each have a positive dispersion value. The cable optically connects together two optical repeater stations, or an optical repeater station and an end station. Lengths of the first, second and third optical fibers are set so that loss in the first, second and third optical fibers of light transmitted through the first, second and third optical fibers is compensated by Raman amplification occurring in the first, second and third optical fibers.
摘要翻译：一种光纤电缆，包括连接在一起的第一，第二和第三光纤，使得穿过电缆的光线穿过第一光纤，然后穿过第二光纤，然后穿过第三光纤。第二光纤具有负色散值。第一和第三光纤各自具有正色散值。电缆将两个光中继站或光中继站和终端站光学连接在一起。设置第一，第二和第三光纤的长度，使得透过第一，第二和第三光纤的光的第一，第二和第三光纤中的损耗由在第一，第二和第三光纤中的第一，第二和第三光纤纤维。

4. 发明申请

US20060176545A1 Optical transmission system, optical repeater, and optical transmission method 有权
公开(公告)号：US20060176545A1
公开(公告)日：2006-08-10
申请号：US11389013
申请日：2006-03-27
申请人： Kentaro Nakamura , Takafumi Terahara , Rainer Hainberger , Junichi Kumasako
发明人： Kentaro Nakamura , Takafumi Terahara , Rainer Hainberger , Junichi Kumasako
IPC分类号： H01S3/00
CPC分类号： H04B10/2916
摘要： In a WDM transmission system employing a plurality of short wavelength bands having great attenuation due to optical fiber transmission, an optical repeater is constructed of a first multiplexing section and a second multiplexing section. The first multiplexing section is used for wavelength-multiplexing both the excitation light from a first Raman excitation light source, which distributively amplifies an S+ band included in light propagating through an optical fiber, and the light propagating through the optical fiber. The second multiplexing section is used for wavelength-multiplexing both the excitation light from a second Raman excitation light source, which distributively amplifies an S+ band included in light propagating through an optical fiber, and the light propagating through the optical fiber. The first and second multiplexing sections are provided between the optical fibers disposed between end offices. Thus an equal and satisfactory optical SN ratio even at any band are obtained.

5. 发明授权

US07075709B2 Optical transmission system, optical repeater, and optical transmission method 失效
公开(公告)号：US07075709B2
公开(公告)日：2006-07-11
申请号：US10103690
申请日：2002-03-25
申请人： Kentaro Nakamura , Takafumi Terahara , Rainer Hainberger , Junichi Kumasako
发明人： Kentaro Nakamura , Takafumi Terahara , Rainer Hainberger , Junichi Kumasako
IPC分类号： H01S3/00
CPC分类号： H04B10/2916
摘要： In a WDM transmission system employing a plurality of short wavelength bands having great attenuation due to optical fiber transmission, an optical repeater is constructed of a first multiplexing section and a second multiplexing section. The first multiplexing section is used for wavelength-multiplexing both the excitation light from a first Raman excitation light source, which distributively amplifies an S+ band included in light propagating through an optical fiber, and the light propagating through the optical fiber. The second multiplexing section is used for wavelength-multiplexing both the excitation light from a second Raman excitation light source, which distributively amplifies an S+ band included in light propagating through an optical fiber, and the light propagating through the optical fiber. The first and second multiplexing sections are provided between the optical fibers disposed between end offices. Thus an equal and satisfactory optical SN ratio even at any band are obtained.

6. 发明授权

US06856453B2 Control scheme for long wavelength channels in wideband WDM optical fiber transmission system 失效
标题翻译：宽带WDM光纤传输系统中长波长信道的控制方案
公开(公告)号：US06856453B2
公开(公告)日：2005-02-15
申请号：US10610527
申请日：2003-07-02
申请人： Rainer Hainberger , Takafumi Terahara
发明人： Rainer Hainberger , Takafumi Terahara
IPC分类号： H01S3/06 , H01S3/067 , H01S3/10 , H01S3/102 , H01S3/30 , H04B10/02 , H04B10/16 , H04B10/17 , H04B10/18 , H04J14/00 , H04J14/02 , H01S3/00
CPC分类号： H04B10/2972 , H01S3/06754 , H01S3/10007 , H01S3/302 , H04B10/2916 , H04B2210/258
摘要： There is provided in an optical amplifier device used for a system in which a power transfer takes place from comparatively short wavelength signal to a comparatively long wavelength signal. The device includes an amplifier stage coupled to an optical transmission medium, a monitor monitoring a status of a first band; and a pump light source unit supplying at least one first pump light to the optical transmission medium on the basis of the status of the first band monitored, so that the above at least one first pump light supplies additional power to longer wavelength channels related to the status of the first band.
摘要翻译：提供在用于系统的光放大器装置中，其中从较短的波长信号到比较长的波长信号发生功率传输。该装置包括耦合到光传输介质的放大器级，监视第一频带的状态的监视器; 以及泵光源单元，其基于所监视的所述第一频带的状态向所述光传输介质提供至少一个第一泵浦光，使得所述至少一个第一泵浦光向与所述光传输介质相关的较长波长信道提供附加功率第一乐队的状态

7. 发明授权

US07372622B2 Optical transmission system, optical repeater, and optical transmission method 有权
标题翻译：光传输系统，光中继器，光传输方式
公开(公告)号：US07372622B2
公开(公告)日：2008-05-13
申请号：US11389013
申请日：2006-03-27
申请人： Kentaro Nakamura , Takafumi Terahara , Rainer Hainberger , Junichi Kumasako
发明人： Kentaro Nakamura , Takafumi Terahara , Rainer Hainberger , Junichi Kumasako
IPC分类号： H01S3/00
CPC分类号： H04B10/2916
摘要： In a WDM transmission system employing a plurality of short wavelength bands having great attenuation due to optical fiber transmission, an optical repeater is constructed of a first multiplexing section and a second multiplexing section. The first multiplexing section is used for wavelength-multiplexing both the excitation light from a first Raman excitation light source, which distributively amplifies an S+ band included in light propagating through an optical fiber, and the light propagating through the optical fiber. The second multiplexing section is used for wavelength-multiplexing both the excitation light from a second Raman excitation light source, which distributively amplifies an S+ band included in light propagating through an optical fiber, and the light propagating through the optical fiber. The first and second multiplexing sections are provided between the optical fibers disposed between end offices. Thus an equal and satisfactory optical SN ratio even at any band are obtained.
摘要翻译：在采用由于光纤传输而具有很大衰减的多个短波段的WDM传输系统中，光中继器由第一多路复用部分和第二复用部分构成。第一复用部分用于波长复用来自第一拉曼激励光源的激发光，该第一拉曼激发光源分布放大包含在通过光纤传播的光中的S +波段和通过光纤传播的光。第二复用部分用于波长复用来自第二拉曼激发光源的激发光，该第二拉曼激励光源分布放大包含在通过光纤传播的光中的S +波段和通过光纤传播的光。第一和第二复用部分设置在设置在端部之间的光纤之间。因此，即使在任何频带也获得相等且令人满意的光学SN比。

8. 发明授权

US07099541B2 Optical fiber cable 有权
标题翻译：光纤电缆
公开(公告)号：US07099541B2
公开(公告)日：2006-08-29
申请号：US11066537
申请日：2005-02-28
申请人： Takafumi Terahara , Rainer Hainberger , Takeshi Hoshida
发明人： Takafumi Terahara , Rainer Hainberger , Takeshi Hoshida
IPC分类号： G02B6/44
CPC分类号： H04B10/2916 , G02B6/02252 , G02B6/02266 , G02B6/262 , G02B6/29377 , H01S3/302 , H04B10/25253 , H04B2210/003
摘要： An optical fiber cable including a plurality of optical fibers, each optical fiber having a characteristic value in a middle field which is larger than characteristic values in fields other than the middle field of the optical fiber. The characteristic value in a respective field is a nonlinear refractive index of the optical fiber in the field divided by an effective cross section of the optical fiber in the field. The middle field and the characteristic value in the middle field are set as a combination to suppress a nonlinear phase shift generated in light transmitted through the plurality of optical fibers.
摘要翻译：一种包括多根光纤的光缆，每个光纤在中间场中具有比光纤的中间场以外的场中的特征值大的特征值。各个场中的特征值是场中光纤的非线性折射率除以现场光纤的有效截面。将中间场和中间场中的特征值设定为组合，以抑制在透过多根光纤的光中产生的非线性相移。

9. 发明授权

US06941074B2 Bidirectionally transmittable optical wavelength division multiplexed transmission system 有权
标题翻译：双向可传输光波分复用传输系统
公开(公告)号：US06941074B2
公开(公告)日：2005-09-06
申请号：US09800891
申请日：2001-03-08
申请人： Kentaro Nakamura , Takafumi Terahara , Junichi Kumasako , Rainer Hainberger
发明人： Kentaro Nakamura , Takafumi Terahara , Junichi Kumasako , Rainer Hainberger
IPC分类号： H01S3/30 , H01S3/06 , H01S3/067 , H04B10/00 , H04B10/29 , H04B10/294 , H04B10/297 , H04J14/00 , H04J14/02 , H04L5/14 , H04B10/02 , H04B10/08 , H04B10/12
CPC分类号： H04B10/2971 , H04B10/2503 , H04B10/2916
摘要： Different bands (C-band and L-band) are allotted respectively to an upstream optical signal and a downstream optical signal. In a transmission-path optical fiber for Raman amplification, the C-band optical signal is amplified by pumping light from a C-band pumping light source, and the L-band optical signal is amplified by pumping light from an L-band pumping light source. As a result of this configuration, the optical signals are Raman-amplified through backward pumping in both upstream and downstream directions, whereby negative effects, which could be exerted on the optical signals by forward pumping, can be avoided.
摘要翻译：分别将不同的频带（C波段和L波段）分配给上行光信号和下行光信号。在用于拉曼放大的传输路径光纤中，C波段光信号通过泵浦来自C波段泵浦光源的光而被放大，并且L波段光信号通过泵浦来自L波段泵浦光的光而被放大资源。作为该结构的结果，光信号通过在上下游方向上的反向泵浦而被拉曼放大，由此可以避免通过正向泵浦对光信号施加的负面影响。

10. 发明申请

US20050157991A1 Distributed optical amplifying apparatus, optical communication station, optical communication system, and optical fiber cable 有权
标题翻译：分布式光放大装置，光通信站，光通信系统，光缆
公开(公告)号：US20050157991A1
公开(公告)日：2005-07-21
申请号：US11066537
申请日：2005-02-28
申请人： Takafumi Terahara , Rainer Hainberger , Takeshi Hoshida
发明人： Takafumi Terahara , Rainer Hainberger , Takeshi Hoshida
IPC分类号： G02F1/35 , H01S3/06 , H01S3/067 , H01S3/10 , H01S3/30 , H04B10/077 , H04B10/079 , H04B10/2507 , H04B10/2519 , H04B10/2525 , H04B10/2537 , H04B10/29 , H04B10/294 , H04B10/297 , G02B6/44
CPC分类号： H04B10/2916 , G02B6/02252 , G02B6/02266 , G02B6/262 , G02B6/29377 , H01S3/302 , H04B10/25253 , H04B2210/003
摘要： An optical fiber transmission line including first, second and third optical fibers connected together so that light travels through the transmission line from the first optical fiber, then through the second optical fiber and then through the third optical fiber. The first, second and third optical fibers have first, second and third characteristic values, respectively. The second characteristic value is larger than the first characteristic value and the third characteristic value. The characteristic value of a respective optical fiber being a nonlinear refractive index of the optical fiber divided by an effective cross section of the optical fiber. Pump light is supplied to the transmission line so that Raman amplification occurs in the transmission line as an optical signal travels through the transmission line.
摘要翻译：一种光纤传输线，包括连接在一起的第一，第二和第三光纤，使得光从第一光纤传播通过传输线，然后穿过第二光纤，然后通过第三光纤。第一，第二和第三光纤分别具有第一，第二和第三特性值。第二特征值大于第一特征值和第三特征值。作为光纤的非线性折射率的各光纤的特征值除以光纤的有效截面。泵浦光被提供给传输线，使得当光信号通过传输线路时，在传输线路中发生拉曼放大。

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