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

US08265490B2 Transamplifier, system and method for amplification of optical signals at plural wavelengths 有权
标题翻译：用于放大多个波长的光信号的放大器，系统和方法
公开(公告)号：US08265490B2
公开(公告)日：2012-09-11
申请号：US12473736
申请日：2009-05-28
申请人： Fernando X. Villarruel , Steven C. Condra , Yihong Chen , Kevin L. Sweeney , James W. Sulhoff
发明人： Fernando X. Villarruel , Steven C. Condra , Yihong Chen , Kevin L. Sweeney , James W. Sulhoff
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04J14/0298 , H04B10/2575 , H04B10/506 , H04J14/02 , H04J14/0226 , H04J14/0227 , H04J14/0232 , H04J14/0238 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0282
摘要： Disclosed herein are embodiments of a device, method of use and system for an analog multi-wavelength transamplifier. The transamplifier embodiments described herein allow the use of multiple wavelengths to segment logical service groups, such as for use in a CATV distribution system and a FTTH system having a broadband overlay. Improved optical signal power performance can be achieved by using direct modulating transmitters and maintaining polarization of the optical signals that are modulated by a phase modulator, such as an external waveguide.
摘要翻译：这里公开了模拟多波长透射器的装置，使用方法和系统的实施例。本文描述的这种扩展器实施例允许使用多个波长来分割逻辑服务组，例如用于具有宽带覆盖的CATV分发系统和FTTH系统中。通过使用直接调制发射机并保持被诸如外部波导之类的相位调制器调制的光信号的偏振，可以实现改进的光信号功率性能。

2. 发明授权

US6008932A Erbium-doped fiber amplifier with automatic gain control 失效
公开(公告)号：US6008932A
公开(公告)日：1999-12-28
申请号：US946469
申请日：1997-10-07
申请人： Gengxian Luo , Atul K. Srivastava , James W. Sulhoff , Yan Sun , John L. Zyskind
发明人： Gengxian Luo , Atul K. Srivastava , James W. Sulhoff , Yan Sun , John L. Zyskind
IPC分类号： H01S3/067 , H01S3/13 , H01S3/131 , H01S3/16 , H01S3/30 , G02B6/26
CPC分类号： H01S3/1302 , H01S3/06754 , H01S3/094003 , H01S3/09415 , H01S3/1608
摘要： An Erbium doped fiber amplifier (EDFA) is placed in a laser cavity to clamp the gain of the amplifier. The laser cavity is preferably formed to minimize the effects of relaxation oscillations and of spectral hole burning. In a preferred embodiment, the laser cavity supports a lasing wavelength which makes the saturation energy at the laser wavelength less than that at the signal wavelengths. In an erbium doped fiber implementation, the laser wavelength is shorter than that of the signal wavelengths and is separated from them by no more than approximately 75% of the width of the spectral hole. The compounding of relaxation oscillations may be substantially eliminated by varying the length of the fiber within each laser cavity within a system to change the photon round-trip time within each cavity.

3. 发明授权

US5900968A Method of fast gain control in WDM optical networks 失效
标题翻译： WDM光网络快速增益控制方法
公开(公告)号：US5900968A
公开(公告)日：1999-05-04
申请号：US728629
申请日：1996-10-10
申请人： Atul Kumar Srivastava , James W. Sulhoff , Yan Sun , Robert William Tkach , John Lehrer Zyskind
发明人： Atul Kumar Srivastava , James W. Sulhoff , Yan Sun , Robert William Tkach , John Lehrer Zyskind
IPC分类号： H04B10/04 , H04B10/06 , H04B10/14 , H04B10/17 , H04J14/02 , H01S3/00
CPC分类号： H04B10/296 , H04B10/2912 , H04B10/2935 , H04J14/0221
摘要： In a WDM network employing a plurality of optical amplifiers in at least one optical fiber link, a system and method for dynamically controlling gain in accordance with the collective behavior of the amplifier chain. According to the present invention, the required response time of dynamic gain control is selected substantially inversely relative to the number of amplifiers in the communication path. Illustratively, in a large-scale optical network (with signal channel paths traversing say, a hundred optical amplifiers), the response time of gain control in accordance with the present invention may be on the order of 5 .mu.s or even less.
摘要翻译：在至少一个光纤链路中使用多个光放大器的WDM网络中，根据放大器链的集体行为来动态地控制增益的系统和方法。根据本发明，动态增益控制的所需响应时间相对于通信路径中的放大器的数量基本上相反地选择。说明性地，在大规模光网络（具有通过数百个光放大器的信道通道）中，根据本发明的增益控制的响应时间可以在5μs甚至更小的数量级。

4. 发明授权

US5132976A Electrically tunable fiber ring laser 失效
标题翻译：电可调光纤环激光
公开(公告)号：US5132976A
公开(公告)日：1992-07-21
申请号：US706135
申请日：1991-05-28
申请人： Yun C. Chung , David J. DiGiovanni , Julian Stone , James W. Sulhoff , John L. Zyskind
发明人： Yun C. Chung , David J. DiGiovanni , Julian Stone , James W. Sulhoff , John L. Zyskind
IPC分类号： H01S3/07 , H01S3/06 , H01S3/067 , H01S3/083 , H01S3/106 , H01S3/13
CPC分类号： H01S3/06791 , H01S3/1062
摘要： A compact all-fiber, electrically tunable ring laser includes a diodepumped erbium-doped fiber amplifier. The frequency of the laser is tuned by a fiber Fabry-Perot(FFP) etalon that is electrically tuned. An in-line optical isolator is used in conjunction with the FFP to eliminate undesired reflections. A second FFP with a narrow free spectral range (FSR) can be used in conjunction with a first FFP with a wide FSR.

5. 发明授权

US07903980B2 Amplified wavelength broadband video distribution architectures using a phase modulating waveguide 有权
标题翻译：使用相位调制波导的放大波长宽带视频分配架构
公开(公告)号：US07903980B2
公开(公告)日：2011-03-08
申请号：US11765152
申请日：2007-06-19
申请人： Fernando X. Villarruel , Steven C. Condra , Yihong Chen , Kevin L. Sweeney , James W. Sulhoff
发明人： Fernando X. Villarruel , Steven C. Condra , Yihong Chen , Kevin L. Sweeney , James W. Sulhoff
IPC分类号： H04B10/04 , H04B10/12 , H04J14/02
CPC分类号： H04J14/0282 , H04J14/0226 , H04J14/0227 , H04J14/0232 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0298
摘要： Provided herein are embodiments of a device, method of use and system for a low-cost analog multi-wavelength video distribution transamplifier for CATV and FTTH networks having a broadband overlay. The transamplifier embodiments described herein allow the use of multiple wavelengths to segment logical service groups in a CATV distribution system and a FTTH system having a broadband overlay. Improved optical signal power performance can be achieved by using direct modulating transmitters and modulating the optical signal for with an external waveguide, thereby decreasing SBS and reducing non-linearities.
摘要翻译：本文提供了用于具有宽带覆盖的CATV和FTTH网络的低成本模拟多波长视频分配放大器的设备，使用方法和系统的实施例。这里描述的多功能放大器实施例允许使用多个波长来分割CATV分配系统中的逻辑服务组和具有宽带覆盖的FTTH系统。可以通过使用直接调制发射机和用外部波导调制光信号来实现改进的光信号功率性能，从而降低SBS并减少非线性。

6. 发明申请

US20080317467A1 Amplified Wavelength Broadband Video Distribution Architectures 有权
标题翻译：放大波长宽带视频分配架构
公开(公告)号：US20080317467A1
公开(公告)日：2008-12-25
申请号：US11765078
申请日：2007-06-19
申请人： Fernando X. Villarruel , Steven C. Condra , Yihong Chen , Kevin L. Sweeney , James W. Sulhoff
发明人： Fernando X. Villarruel , Steven C. Condra , Yihong Chen , Kevin L. Sweeney , James W. Sulhoff
IPC分类号： H04J14/02
CPC分类号： H04J14/0282 , H04J14/0226 , H04J14/0227 , H04J14/0232 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0298
摘要： Provided herein are embodiments of a device, method of use and system for a low-cost analog multi-wavelength video distribution transamplifier for CATV and FTTH networks having a broadband overlay. The transamplifier embodiments described herein allow the use of multiple wavelengths to segment logical service groups in a CATV distribution system and a FTTH system having a broadband overlay.
摘要翻译：本文提供了用于具有宽带覆盖的CATV和FTTH网络的低成本模拟多波长视频分配放大器的设备，使用方法和系统的实施例。这里描述的多功能放大器实施例允许使用多个波长来分割CATV分配系统中的逻辑服务组和具有宽带覆盖的FTTH系统。

7. 发明授权

US06687049B1 Optical amplifiers with stable output power under low input power conditions 失效
标题翻译：在低输入功率条件下具有稳定输出功率的光放大器
公开(公告)号：US06687049B1
公开(公告)日：2004-02-03
申请号：US09929141
申请日：2001-08-15
申请人： James W. Sulhoff , Yongan Wu , Chia-Chi Wang
发明人： James W. Sulhoff , Yongan Wu , Chia-Chi Wang
IPC分类号： H04B1012
CPC分类号： H04B10/296 , H01S3/06754 , H01S3/094011 , H01S3/094061 , H01S3/094096 , H01S3/10015 , H01S3/1301 , H01S3/1305 , H04B10/2912
摘要： Optical amplifiers and optical network equipment are provided that have optical gain stages for amplifying optical signals on a fiber-optic communications link. The optical gain stages may be based on optically pumped fiber such as rare-earth-doped fiber. The fiber may be optically pumped using laser diode pumps. A control unit may be provided in the amplifiers or other equipment to control the laser diode pumps. Optical monitors may be used to measure the optical signals in the amplifiers or other equipment. The pump powers of the laser diode pumps may be adjusted in real time by the control unit based on the measured optical signals to suppress gain transients due to input power fluctuations on the link. To minimize the impact of pump-induced noise, the control unit may avoid operating the laser diodes at powers at which the laser diodes are most susceptible to mode partition noise.
摘要翻译：提供光放大器和光网络设备，其具有用于放大光纤通信链路上的光信号的光增益级。光增益级可以基于诸如稀土掺杂光纤的光泵浦光纤。光纤可以使用激光二极管泵进行光泵浦。可以在放大器或其他设备中设置控制单元以控制激光二极管泵。光学监视器可用于测量放大器或其他设备中的光信号。激光二极管泵的泵浦功率可以由控制单元基于测量的光信号实时调整，以抑制由于链路上的输入功率波动引起的增益瞬变。为了最小化泵浦噪声的影响，控制单元可以避免在激光二极管最容易受到模式分区噪声影响的功率下操作激光二极管。

8. 发明授权

US5406404A Method of mitigating gain peaking using a chain of fiber amplifiers 失效
标题翻译：使用光纤放大器链减轻增益峰化的方法
公开(公告)号：US5406404A
公开(公告)日：1995-04-11
申请号：US146340
申请日：1993-11-02
申请人： David J. DiGiovanni , Jonathan A. Nagel , Richard G. Smart , James W. Sulhoff , John L. Zyskind
发明人： David J. DiGiovanni , Jonathan A. Nagel , Richard G. Smart , James W. Sulhoff , John L. Zyskind
IPC分类号： H01S3/07 , H01S3/06 , H01S3/067 , H01S3/094 , H01S3/16 , H01S3/17 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/16 , H04B10/17 , H04J14/02 , H04B10/00
CPC分类号： H04B10/2935 , H01S3/06754 , H04B10/2912 , H04J14/0221 , H01S2301/04 , H01S2303/00 , H01S3/1608
摘要： The present invention relates to a method of mitigating gain peaking in a chain of fiber amplifiers by pumping the amplifiers at a predetermined wavelength to produce gain over a specified wavelength range.
摘要翻译：本发明涉及通过以预定波长泵浦放大器以在特定波长范围内产生增益来减轻光纤放大器链中的增益峰化的方法。

9. 发明授权

US08111992B2 Amplified wavelength broadband video distribution architectures 有权
标题翻译：扩展波长宽带视频分配架构
公开(公告)号：US08111992B2
公开(公告)日：2012-02-07
申请号：US11765078
申请日：2007-06-19
申请人： Fernando X. Villarruel , Steven C. Condra , Yihong Chen , Kevin L. Sweeney , James W. Sulhoff
发明人： Fernando X. Villarruel , Steven C. Condra , Yihong Chen , Kevin L. Sweeney , James W. Sulhoff
IPC分类号： H04J14/02
CPC分类号： H04J14/0282 , H04J14/0226 , H04J14/0227 , H04J14/0232 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0298
摘要： Provided herein are embodiments of a device, method of use and system for a low-cost analog multi-wavelength video distribution transamplifier for CATV and FTTH networks having a broadband overlay. The transamplifier embodiments described herein allow the use of multiple wavelengths to segment logical service groups in a CATV distribution system and a FTTH system having a broadband overlay.
摘要翻译：本文提供了用于具有宽带覆盖的CATV和FTTH网络的低成本模拟多波长视频分配放大器的设备，使用方法和系统的实施例。这里描述的多功能放大器实施例允许使用多个波长来分割CATV分配系统中的逻辑服务组和具有宽带覆盖的FTTH系统。

10. 发明授权

US06424457B1 Optical amplifiers and methods for manufacturing optical amplifiers 有权
标题翻译：光放大器和制造光放大器的方法
公开(公告)号：US06424457B1
公开(公告)日：2002-07-23
申请号：US09729085
申请日：2000-12-05
申请人： James P. Koonmen , James W. Sulhoff , Chia-Chi Wang , Paul F. Wysocki
发明人： James P. Koonmen , James W. Sulhoff , Chia-Chi Wang , Paul F. Wysocki
IPC分类号： H04B1013
CPC分类号： H01S3/06754 , H01S3/10007 , H01S2301/04
摘要： Optical amplifiers and methods for manufacturing optical amplifiers are provided that allow amplifiers to be fabricated to match design expectations. Optical amplifiers may be manufactured by assembling passive optical components in the amplifier before assembling active optical components such as doped fiber coils. Passive losses may then be characterized and used to calculate the lengths of the fibers that should be used in the amplifier gain stages. Following corrections to the nominal doped-fiber lengths based on the measured passive losses, the passive and active components of the amplifier may be assembled and characterized. Final corrections may be made to the amplifier assembly based on these characterizations. For example, the lengths of one or more of the doped fibers may be adjusted. If desired, such length adjustments may be made to fiber coils in the mid-stage portion of the amplifier, so that the impact on the operating characteristics of the amplifier are minimized.
摘要翻译：提供了用于制造光放大器的光放大器和方法，其允许制造放大器以匹配设计期望。光放大器可以在组装诸如掺杂光纤线圈之类的有源光学部件之前在放大器中组装无源光学部件来制造。然后可以对被动损耗进行表征，并用于计算应在放大器增益级中使用的光纤的长度。基于所测量的被动损耗对标称掺杂光纤长度进行校正之后，可以组装和表征放大器的无源和有源部件。可以基于这些特征对放大器组件进行最终校正。例如，可以调节一个或多个掺杂光纤的长度。如果需要，可以对放大器的中间部分中的光纤线圈进行这种长度调节，使得对放大器的工作特性的影响最小化。

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