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

US06603890B2 Compensation for polarization-mode dispersion in multiple wavelength-division multiplexed channels without separate composition for each individual channel 失效
标题翻译：补偿多个波分复用通道中的偏振模色散，而不需要为每一个通道单独组合
公开(公告)号：US06603890B2
公开(公告)日：2003-08-05
申请号：US09800761
申请日：2001-03-06
申请人： Reza Khosravani , Steven A. Havstad , Yong-Won Song , Paniz Ebrahimi , Alan E. Willner
发明人： Reza Khosravani , Steven A. Havstad , Yong-Won Song , Paniz Ebrahimi , Alan E. Willner
IPC分类号： G02B600
CPC分类号： G02B6/278 , H04B10/2569 , H04J14/02
摘要： Techniques for compensating for PMD in multiple WDM channels by processing all WDM channels in the same manner without demultpliexing the channels. A feedback control is provided to decrease the worst-case power penalty and the channel fading probability by optimizing over the entire group of WDM channels.
摘要翻译：通过以相同的方式处理所有WDM信道而不使信道破坏来补偿多个WDM信道中的PMD的技术。提供反馈控制以通过对整个WDM信道组进行优化来减少最坏情况功率损失和信道衰落概率。

2. 发明授权

US06542650B2 Polarization-mode dispersion emulator 失效
标题翻译：偏振模色散模拟器
公开(公告)号：US06542650B2
公开(公告)日：2003-04-01
申请号：US09727820
申请日：2000-11-30
申请人： Reza Khosravani , Paniz Ebrahimi , Ivan T. Lima, Jr. , Edem Ibragimov , Alan E. Willner , Curtis R. Menyuk
发明人： Reza Khosravani , Paniz Ebrahimi , Ivan T. Lima, Jr. , Edem Ibragimov , Alan E. Willner , Curtis R. Menyuk
IPC分类号： G02B600
CPC分类号： G02B6/274 , G02B6/105 , G02B6/278 , G02B6/29392 , G02B6/3812 , H04B10/2569
摘要： Techniques and devices for emulating polarization-mode dispersion in an optical signal that transmits through an optical fiber by using multiple birefringent wave-guiding sections that are interconnected to have adjustable polarization-changing connectors. The polarization of light transmitting from one section to another adjacent section can be modified differently between different adjacent sections according to a distribution function to produce one PMD state to represent one possible PMD state of a real PMD fiber. The connectors can be adjusted to produce different sets of polarization modifications to produce different PMD states to represent different possible PMD states of the real PMD fiber.
摘要翻译：用于模拟通过光纤传输的光信号中的偏振模色散的技术和装置，所述光信号通过使用互连以具有可调偏振改变连接器的多个双折射波导引部分。根据分布函数，可以根据分布函数在不同的相邻部分之间不同地修改从一个部分到另一个相邻部分的光的偏振，以产生一个PMD状态来表示真实的PMD光纤的一个可能的PMD状态。可以调整连接器以产生不同的极化修改集合以产生不同的PMD状态，以表示真实的PMD光纤的不同的可能的PMD状态。

3. 发明授权

US06330383B1 Disperson compensation by using tunable nonlinearly-chirped gratings 有权
标题翻译：通过使用可调谐非线性啁啾光栅来消除补偿
公开(公告)号：US06330383B1
公开(公告)日：2001-12-11
申请号：US09253645
申请日：1999-02-19
申请人： Jin-Xing Cai , Kai-Ming Feng , Alan E. Willner , Jiangde Peng , Sanggeon Lee , Reza Khosravani
发明人： Jin-Xing Cai , Kai-Ming Feng , Alan E. Willner , Jiangde Peng , Sanggeon Lee , Reza Khosravani
IPC分类号： G02B634
CPC分类号： G02B6/29322 , G02B6/02085 , G02B6/02109 , G02B6/02138 , G02B6/022 , G02B6/2932 , G02B6/29394 , G02B6/29395 , G02B6/4215 , G02F1/011 , G02F1/0115 , G02F1/0126 , G02F1/0134 , G02F2201/307 , H01S3/0057 , H04B10/2519 , H04B2210/258
摘要： A nonlinearly chirped fiber grating for achieving tunable dispersion compensation, dispersion slope compensation, polarization mode dispersion, chirp reduction in directly modulated diode lasers, and optical pulse manipulation. A dynamical dispersion compensation mechanism can be implemented in a fiber communication system based on such a nonlinearly chirped fiber grating.
摘要翻译：用于实现可调谐色散补偿，色散斜率补偿，偏振模色散，直接调制二极管激光器中的啁啾抑制以及光脉冲操作的非线性啁啾光纤光栅。可以在基于这种非线性啁啾光纤光栅的光纤通信系统中实现动态色散补偿机制。

4. 发明授权

US06388785B2 Optical compensation for dispersion-induced power fading in optical transmission of double-sideband signals 失效
标题翻译：双边带信号光传输中色散引起的功率衰落的光学补偿
公开(公告)号：US06388785B2
公开(公告)日：2002-05-14
申请号：US09780604
申请日：2001-02-08
申请人： Steven A. Havstad , Asaf B. Sahin , Olaf H. Adamczyk , Yong Xie , Alan E. Willner
发明人： Steven A. Havstad , Asaf B. Sahin , Olaf H. Adamczyk , Yong Xie , Alan E. Willner
IPC分类号： H04B1000
CPC分类号： H04B10/2519
摘要： Techniques and devices for compensating dispersion-induced power fading in a double-sideband optical signal based on a tunable optical dispersion element.
摘要翻译：用于基于可调谐光学色散元件补偿双边带光信号中的色散引起的功率衰落的技术和装置。

5. 发明授权

US06915040B2 Devices and applications based on tunable wave-guiding bragg gratings with nonlinear group delays 失效
标题翻译：基于具有非线性组延迟的可调谐波导布拉格光栅的器件和应用
公开(公告)号：US06915040B2
公开(公告)日：2005-07-05
申请号：US10172832
申请日：2002-06-13
申请人： Alan E. Willner , Yong-Won Song , S.M. Reza Motaghian Nezam
发明人： Alan E. Willner , Yong-Won Song , S.M. Reza Motaghian Nezam
IPC分类号： G02B6/34 , G02F1/01 , H01S3/00 , H04B10/18 , G20B6/34
CPC分类号： G02B6/02085 , G02B6/02109 , G02B6/02138 , G02B6/02195 , G02B6/022 , G02B6/2932 , G02B6/29322 , G02B6/29394 , G02B6/29398 , G02B6/4215 , G02F1/011 , G02F1/0115 , G02F1/0126 , G02F1/0134 , G02F2201/307 , H01S3/0057 , H04B10/25133 , H04B10/2519 , H04B2210/258
摘要： Techniques, devices, and systems for generating tunable dispersions to control or compensate for dispersions in optical signals by using wave-guiding grating elements with nonlinear group delays.
摘要翻译：用于产生可调散射以通过使用具有非线性组延迟的波导光栅元件来控制或补偿光信号中的色散的技术，装置和系统。

6. 发明申请

US20130025374A1 Sweep-Free Stimulated Brillouin Scattering-Based Fiber Optical Sensing 有权
标题翻译：基于无扫描的布里渊散射光纤光学传感
公开(公告)号：US20130025374A1
公开(公告)日：2013-01-31
申请号：US13411390
申请日：2012-03-02
申请人： Asher Voskoboinik , Alan E. Willner , Moshe Tur
发明人： Asher Voskoboinik , Alan E. Willner , Moshe Tur
IPC分类号： G01D5/32
CPC分类号： G01D5/35364 , G01D5/35303 , G01D5/35387
摘要： Methods and systems used to perform sweep-free stimulated Brillouin scattering-based fiber optical sensing are described. In one aspect, a method includes interrogating different parts of a Brillouin gain spectrum using multiple optical tones in an optical fiber. The interrogating includes sending at least two pump tones into the optical fiber from one end of the optical fiber, such that a frequency spacing between the pump tones is larger than a width of the Brillouin gain spectrum. The interrogating also includes sending at least two probe tones into the optical fiber from another end of the optical fiber, such that a frequency spacing between the probe tones is different from the frequency spacing between the pump tones. The method further includes generating a sensing output based on the interrogating.
摘要翻译：描述了用于执行无扫描受激布里渊散射的光纤传感的方法和系统。在一个方面，一种方法包括使用光纤中的多个光学色调来询问布里渊增益谱的不同部分。询问包括从光纤的一端发送至少两个泵浦音调到光纤中，使得泵浦频率之间的频率间隔大于布里渊增益频谱的宽度。询问还包括从光纤的另一端发送至少两个探测音调到光纤中，使得探测音之间的频率间隔与泵音之间的频率间隔不同。该方法还包括基于询问产生感测输出。

7. 发明授权

US06714742B1 Polarization-division multiplexing based on power encoding of different polarization channels 有权
标题翻译：基于不同极化通道的功率编码的极化分复用
公开(公告)号：US06714742B1
公开(公告)日：2004-03-30
申请号：US09574761
申请日：2000-05-19
申请人： M. Imran Hayee , Mustafa C. Cardakli , Alan E. Willner
发明人： M. Imran Hayee , Mustafa C. Cardakli , Alan E. Willner
IPC分类号： H04J1406
CPC分类号： H04J14/06 , H04B10/532 , H04J14/02
摘要： Methods and systems for implementing polarization division multiplexing to allow recovery of data in different multiplexed channels at a receiving end without recovering multiplexed polarizations used in the transmitting stage.
摘要翻译：用于实现偏振分割多路复用的方法和系统，以允许在接收端恢复不同复用信道中的数据，而不会恢复在发送阶段中使用的多路复用偏振。

8. 发明授权

US06453095B2 Tuning of optical dispersion by using a tunable fiber bragg grating 失效
标题翻译：通过使用可调谐光纤布拉格光栅来调整光学色散
公开(公告)号：US06453095B2
公开(公告)日：2002-09-17
申请号：US09827819
申请日：2001-04-06
申请人： Kai-Ming Feng , Jin-Xing Cai , Alan E. Willner , Victor Grubsky , Dmitry Starodubov , Jack Feinberg
发明人： Kai-Ming Feng , Jin-Xing Cai , Alan E. Willner , Victor Grubsky , Dmitry Starodubov , Jack Feinberg
IPC分类号： G02B634
CPC分类号： G02B6/29322 , G02B6/02085 , G02B6/02109 , G02B6/02138 , G02B6/022 , G02B6/2932 , G02B6/29394 , G02B6/29395 , G02B6/4215 , G02F1/011 , G02F1/0115 , G02F1/0126 , G02F1/0134 , G02F2201/307 , H01S3/0057 , H04B10/2519 , H04B2210/258
摘要： Techniques and devices based on a wave-guiding element which has a spatial grating pattern that is an oscillatory variation along its optic axis. The wave-guiding element is configured to receive an input optical signal and to produce an output optical signal by reflection within a Bragg reflection band produced by the spatial grating pattern so as to produce time delays of different reflected spectral components as a nonlinear function of spatial positions along said optic axis at which the different reflected spectral components are respectively reflected. Such a wave-guiding element may be a nonlinearly chirped fiber grating A control unit may be engaged to the wave-guiding element and is operable to change a property of the spatial grating pattern along the optic axis to tune at least relative time delays of the different reflected spectral components nonlinearly with respect to wavelength.
摘要翻译：基于波导元件的技术和装置，其具有沿其光轴的振荡变化的空间光栅图案。波导元件被配置为接收输入光信号并且通过由空间光栅图案产生的布拉格反射带内的反射产生输出光信号，以便产生不同反射光谱分量的时间延迟作为空间的非线性函数沿着所述光轴的位置分别反射不同的反射光谱分量。这种波导元件可以是非线性啁啾光纤光栅。控制单元可以接合到波导元件，并且可操作以改变沿着光轴的空间光栅图案的特性，以调谐至少相对于时间延迟不同的反射光谱分量相对于波长非线性。

9. 发明授权

US09780872B2 Adaptive optics based simultaneous turbulence compensation of multiple orbital angular momentum beams 有权
公开(公告)号：US09780872B2
公开(公告)日：2017-10-03
申请号：US14807793
申请日：2015-07-23
申请人： Yongxiong Ren , Guodong Xie , Hao Huang , Alan E. Willner
发明人： Yongxiong Ren , Guodong Xie , Hao Huang , Alan E. Willner
IPC分类号： H04J14/00 , H04B10/112
CPC分类号： H04B10/1123 , H04B10/1121
摘要： An adaptive optics compensation approach for an OAM multiplexed FSO communication system is described, in which a Gaussian beam is used to probe the turbulence-induced wavefront distortions and derive the correction pattern for compensating the OAM beams. Using this approach, we demonstrate simultaneous compensation of multiple OAM beams each carrying a 100-Gbit/s data channel through emulated atmospheric turbulence. The results indicate that the turbulence-induced crosstalk and power penalty could be efficiently mitigated by ˜12.5 dB and ˜11 dB respectively.

10. 发明授权

US09768909B2 Systems and techniques for orbital angular momentum based reconfigurable switching 有权
公开(公告)号：US09768909B2
公开(公告)日：2017-09-19
申请号：US14663392
申请日：2015-03-19
申请人： Hao Huang , Yang Yue , Nisar Ahmed , Moshe J. Willner , Yan Yan , Yongxiong Ren , Moshe Tur , Alan E. Willner
发明人： Hao Huang , Yang Yue , Nisar Ahmed , Moshe J. Willner , Yan Yan , Yongxiong Ren , Moshe Tur , Alan E. Willner
IPC分类号： H04J14/00 , H04J14/04
CPC分类号： H04J14/04 , H04J14/00
摘要： In at least one aspect, a device for Orbital Angular Momentum (OAM) based optical communication includes a first spatial light modulator configured to down-convert a first plurality of higher-order OAM modes from a communication signal to a second plurality of higher-order OAM modes and a first Gaussian mode, a second spatial light modulator configured to drop the first Gaussian mode and add a second Gaussian mode to the second plurality of higher-order OAM modes, and a third spatial light modulator configured to up-convert the second plurality of higher-order OAM modes and the second Gaussian mode to a third plurality of higher-order OAM modes for further communications.

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