专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 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。

2. 发明申请

US20070091310A1 Adaptive polarization adjustment apparatus for controlling polarization of light inputed to polarization-maintaining waveguide components 有权
标题翻译：用于控制输入到偏振波维持波导部件的光的偏振的自适应偏振调节装置
公开(公告)号：US20070091310A1
公开(公告)日：2007-04-26
申请号：US10596602
申请日：2004-03-25
申请人： Rainer Hainberger , Shigeki Watanabe
发明人： Rainer Hainberger , Shigeki Watanabe
IPC分类号： G01J4/00
CPC分类号： H04B10/2572 , G02F1/0123 , G02F1/0136
摘要： A nonlinear birefringent waveguide is used for four wave mixing, wavelength conversion, Raman amplification, etc. In order to adjust the polarization of the input light to such waveguide 14, a polarization controller 10 is provided. And at the output side of the waveguide 14, a polarization beam splitter is provided. The polarization beam splitter splits one of orthogonal polarizations which is not desired to be passed through. The power of the split light is detected at photodiode 13. The detection signal of the photodiode 13 is fed back to the polarization controller 10. The polarization controller 10 controls the polarization of input light so that the power of light detected at the photodiode 13 is minimized.
摘要翻译：非线性双折射波导用于四波混频，波长转换，拉曼放大等。为了调节输入光到这种波导14的极化，提供了偏振控制器10。并且在波导14的输出侧设置偏振分束器。偏振分束器分裂不希望通过的正交偏振之一。在光电二极管13处检测分离光的功率。光电二极管13的检测信号反馈给偏振控制器10。偏振控制器10控制输入光的偏振，使得在光电二极管13处检测的光的功率最小化。

3. 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。

4. 发明申请

US20070104491A1 Optical regenerator in optical fiber communication system 有权
标题翻译：光纤通信系统中的光回收器
公开(公告)号：US20070104491A1
公开(公告)日：2007-05-10
申请号：US10595023
申请日：2003-06-30
申请人： Rainer Hainberger , Shigeki Watanabe
发明人： Rainer Hainberger , Shigeki Watanabe
IPC分类号： H04B10/00
CPC分类号： H04B10/2942
摘要： In an optical fiber communication system, the input power to an all-optical nonlinear device in an optical regenerator is monitored and adjusted such that the regenerator operates at an optimized operation point.
摘要翻译：在光纤通信系统中，对光再生器中的全光非线性装置的输入功率进行监视和调整，使得再生器在优化的操作点运行。

5. 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。

6. 发明申请

US20060050365A1 Raman amplification system utilizing modulated second-order raman pumping 有权
公开(公告)号：US20060050365A1
公开(公告)日：2006-03-09
申请号：US10530049
申请日：2002-10-04
申请人： Rainer Hainberger , Takefumi Terahara
发明人： Rainer Hainberger , Takefumi Terahara
IPC分类号： H01S3/00
CPC分类号： H01S3/06754 , H01S3/0677 , H01S3/094011 , H01S3/094073 , H01S3/094076 , H01S3/094096 , H01S3/10007 , H01S3/302 , H04B10/2916
摘要： Higher-order Raman pumping is combined with pump modulation in a Raman amplified optical communication system. First- and second-order Raman pumps are both modulated and launched in opposite direction to signals in an optical fiber. Relative timing of the pumps is controlled to optimize lateral signal power distribution along the fiber.

7. 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.

8. 发明授权

US08078026B2 Device for canceling the wavelength dependence of the nonlinearity coefficient of microstructured fibers 有权
标题翻译：用于消除微结构纤维非线性系数的波长依赖性的装置
公开(公告)号：US08078026B2
公开(公告)日：2011-12-13
申请号：US10999059
申请日：2004-11-30
申请人： Rainer Hainberger , Shigeki Watanabe
发明人： Rainer Hainberger , Shigeki Watanabe
IPC分类号： G02B6/00 , G02B6/02 , G02B6/028
CPC分类号： G02F1/365 , G02B6/02338 , G02B6/02357 , G02F1/3511 , G02F2202/32 , H04B10/2935
摘要： Since the magnitude of a nonlinear effect depends on the nonlinearity coefficient of the microstructured fiber and the intensity of pump light, either the nonlinearity coefficient or the intensity of pump light are adjusted. The nonlinearity coefficient is modified by introducing a nonlinear refractive index profile that has the inverse characteristic of the intensity distribution of either the pump or the signal light. The intensity of the pump light is adjusted by an optical amplifier, an optical attenuator, or a pre-emphasizing filter under the control of a control unit. The control unit controls the intensity of the pump light based on a look-up table which is prepared in advance by experiment or calculation, or based on a function of the pump and signal wavelength.
摘要翻译：由于非线性效应的大小取决于微结构纤维的非线性系数和泵浦光的强度，所以调节非线性系数或泵浦光强度。通过引入具有泵或信号光的强度分布的逆特性的非线性折射率分布来修改非线性系数。在控制单元的控制下，通过光放大器，光衰减器或预加重滤波器来调节泵浦光的强度。控制单元基于通过实验或计算预先准备的或者基于泵的功能和信号波长的查找表来控制泵浦光的强度。

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。

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