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1. 发明授权

US06281997B1 Dense WDM optical multiplexer and demultiplexer 失效
标题翻译：密集WDM光复用器和解复用器
公开(公告)号：US06281997B1
公开(公告)日：2001-08-28
申请号：US08927781
申请日：1997-09-11
申请人： Stephen B. Alexander , Jean-Luc Archambault , Victor Mizrahi , Henry H. Yaffe
发明人： Stephen B. Alexander , Jean-Luc Archambault , Victor Mizrahi , Henry H. Yaffe
IPC分类号： H04J1402
CPC分类号： G02B6/12019 , G02B6/29317 , G02B6/29355 , G02B6/29361 , G02B6/2938 , H04J14/02 , H04J14/0204 , H04J14/0209 , H04J14/0213
摘要： In accordance with the present invention, optical channels to be demultiplexed are supplied to first and second fibers via an optical splitter. Low loss interference filters, for example, coupled to the first and second optical fibers, select respective groups of channels. Each group of channels is next demultiplexed with sub-demultiplexers into individual channels, each of which is then sensed with a corresponding photodetector. Although the optical splitter introduces an optical power loss at the input to the demutiplexer, the interference filters and sub-demultiplexer create little additional loss. As a result, the total power loss associated with the present invention is significantly less than that obtained with a conventional n channel demultiplexer based on a 1×n splitter. Accordingly, large numbers of channels, e. g., in excess of forty can be readily demultiplexed and detected.
摘要翻译：根据本发明，要解复用的光信道经由分光器提供给第一和第二光纤。耦合到第一和第二光纤的低损耗干扰滤波器选择相应的信道组。接下来，将各组信道用子解复用器分离成单个信道，然后用相应的光电检测器检测每个信道。尽管光分路器在复用器的输入端引入光功率损耗，但是干扰滤波器和子解复用器几乎不产生额外的损耗。结果，与本发明相关联的总功率损耗明显小于基于1xn分路器的常规n信道解复用器获得的总功率损耗。因此，大量渠道，例如，超过40个可以容易地解复用和检测。

2. 发明授权

US06404948B2 Dense WDM optical multiplexer and demultiplexer 有权
标题翻译：密集WDM光复用器和解复用器
公开(公告)号：US06404948B2
公开(公告)日：2002-06-11
申请号：US09770367
申请日：2001-01-26
申请人： Stephen B. Alexander , Jean-Luc Archambault , Victor Mizrahi , Henry H. Yaffe
发明人： Stephen B. Alexander , Jean-Luc Archambault , Victor Mizrahi , Henry H. Yaffe
IPC分类号： G02B628
CPC分类号： G02B6/12019 , G02B6/29317 , G02B6/29355 , G02B6/29361 , G02B6/2938 , H04J14/02 , H04J14/0204 , H04J14/0209 , H04J14/0213
摘要： In accordance with the present invention, optical channels to be demultiplexed are supplied to first and second optical fibers via an optical splitter. Low loss interference filters, for example, coupled to the first and second optical fibers, select respective groups of channels. Each group of channels is next demultiplexed with sub-demultiplexers into individual channels, each of which is then sensed with a corresponding photodetector. Although the optical splitter introduces an optical power loss at the input to the demultiplexer, the interference filters and sub-demultiplexers create little additional loss. As a result, the total power loss associated with the present invention is significantly less than that obtained with a conventional n channel demultiplexer based on a 1×n splitter. Accordingly, large numbers of channels, e.g., in excess of forty can be readily demultiplexed and detected.
摘要翻译：根据本发明，要解复用的光信道经由光分路器被提供给第一和第二光纤。耦合到第一和第二光纤的低损耗干扰滤波器选择相应的信道组。接下来，将各组信道用子解复用器分离成单个信道，然后用相应的光电检测器检测每个信道。虽然光分路器在多路分解器的输入端引入光功率损耗，但是干扰滤波器和子解复用器几乎不产生额外的损耗。结果，与本发明相关联的总功率损耗明显小于基于1xn分路器的常规n信道解复用器获得的总功率损耗。因此，可以容易地解复用和检测大量的信道，例如超过40个信道。

3. 发明授权

US5500916A Method for making Bragg reflectors for waveguides 失效
标题翻译：制造波导布拉格反射器的方法
公开(公告)号：US5500916A
公开(公告)日：1996-03-19
申请号：US303913
申请日：1994-09-09
申请人： Raymond A. Cirelli , Charles H. Henry , Edward J. Laskowski , Michele A. Milbrodt , Henry H. Yaffe
发明人： Raymond A. Cirelli , Charles H. Henry , Edward J. Laskowski , Michele A. Milbrodt , Henry H. Yaffe
IPC分类号： G02B6/124 , G02B6/13 , G02B6/34 , H01L21/70
CPC分类号： G02B6/13 , G02B6/124
摘要： A waveguide Bragg reflector is made by forming periodic grooves in either the undercladding or the core, applying a high index coating on the grooved surface and selectively removing the coating from the horizontal surfaces while leaving the coating on the vertical surfaces. The waveguide is then completed.
摘要翻译：波导布拉格反射器通过在下包层或芯中形成周期性凹槽来制造，在开槽表面上施加高折射率涂层并且在将涂层留在垂直表面上时选择性地从水平表面移除涂层。然后完成波导。

4. 发明授权

US5341444A Polarization compensated integrated optical filters and multiplexers 失效
标题翻译：极化补偿集成光滤波器和多路复用器
公开(公告)号：US5341444A
公开(公告)日：1994-08-23
申请号：US35143
申请日：1993-03-19
申请人： Charles H. Henry , Michele A. Milbrodt , Henry H. Yaffe
发明人： Charles H. Henry , Michele A. Milbrodt , Henry H. Yaffe
IPC分类号： G02B6/122 , G02B6/12 , G02B6/124 , G02B6/126 , G02B6/132 , G02B6/34 , H01L27/15 , G02B6/10 , H04J14/00
CPC分类号： G02B6/12011 , G02B6/12004 , G02B6/12023 , G02B6/124 , G02B6/126 , G02B6/132 , G02B2006/12176
摘要： In accordance with the invention the birefringence induced by compressive strain in silica waveguides on silicon substrates is compensated with a high index patch--such as silicon nitride--placed adjacent the core. The patch is disposed sufficiently close to the core to optically couple with the transmitted optical mode. The patch is preferably wider than the core to intersect the exponential tail of the transmitted optical mode. Such a high index patch preferentially couples TE polarization modes. By choosing an appropriate length for the patch, both strain and bend birefringence can be compensated.
摘要翻译：根据本发明，由硅衬底上的石英波导中的压缩应变引起的双折射由与芯相邻的高折射率贴片（例如氮化硅）补偿。贴片被布置成足够靠近芯部以与传输的光学模式进行光学耦合。贴片优选地比核心更宽以与透射光学模式的指数尾部相交。这种高折射率贴片优先耦合TE偏振模式。通过为贴片选择适当的长度，可以补偿应变和弯曲双折射。

5. 发明授权

US6101423A Method and apparatus for sorting components 失效
标题翻译：组件分类方法和装置
公开(公告)号：US6101423A
公开(公告)日：2000-08-08
申请号：US8070
申请日：1998-01-16
申请人： Andrei Csipkes , Henry H. Yaffe , Steve B. Alexander , Balakrishnan Sridhar , Dave A. Schwarten , Yves Pradieu
发明人： Andrei Csipkes , Henry H. Yaffe , Steve B. Alexander , Balakrishnan Sridhar , Dave A. Schwarten , Yves Pradieu
IPC分类号： G06F17/30 , G06F15/40
CPC分类号： G06F17/3053 , G06F17/30988
摘要： The component parts for assembly of a device, such as the passive optical components of an optical amplifier, are automatically selected from among a supply of available component parts. Each component part has a performance parameter such as insertion loss associated therewith. Stored in a database memory are component part data for each component part of the supply of available component parts. The component part data are in a computer readable format and indicative of a type of each part and the performance parameter of each part. To obtain the selection of parts of the device for assembly, the component part data for a plurality of the available component parts is retrieved from the database, and the thus retrieved plurality of component part data are sorted according to at least the performance parameter of each retrieved component part data. At least one component part among the sorted component part data is selected based on a preset parameter. Then, at least one remaining component part among the sorted component part data is identified based at least on the performance parameter of the at least one component part and the performance parameter of the at least one remaining component part.
摘要翻译：用于组装装置的部件，例如光放大器的无源光学部件，可从可用部件的供应中自动选择。每个组件部分具有诸如与其相关联的插入损耗的性能参数。存储在数据库存储器中的是可用组件部件供应的每个组件部分的组件部件数据。组件部件数据是计算机可读格式，并指示每个部件的类型和每个部件的性能参数。为了获得用于组装的设备的部件的选择，从数据库中检索多个可用组件部件的组件部件数据，并且根据至少每个部件的性能参数对如此检索的多个组件部件数据进行排序检索组件零件数据。基于预设参数选择排序分量部件数据中的至少一个部件。然后，至少基于至少一个部件的性能参数和至少一个剩余部件的性能参数来识别排序的部件部件数据中的至少一个剩余部件。

6. 发明授权

US5986782A Signal-to-noise monitoring in WDM optical communication systems 失效
标题翻译： WDM光通信系统中的信噪比监测
公开(公告)号：US5986782A
公开(公告)日：1999-11-16
申请号：US865654
申请日：1997-05-29
申请人： Stephen B. Alexander , Henry H. Yaffe
发明人： Stephen B. Alexander , Henry H. Yaffe
IPC分类号： H04B10/08 , H04J14/02
CPC分类号： H04J14/0221 , H04B10/077 , H04B10/07955
摘要： The present invention provides an optical monitoring system for a WDM optical communication system. In an exemplary embodiment, the monitoring system includes a wavelength selecting device which receives a WDM optical communication signal comprising plural optical channels and optical noise (e.g., ASE). The wavelength selecting device separately outputs optical signals corresponding to each of the optical channels and at least one optical noise sample taken at a wavelength which is not occupied by one of the optical channels. At least one optical power meter optically communicates with the wavelength selecting device for measuring the optical power of each of the optical channels and the optical noise sample. The optical power meter outputs an electrical signal indicating the strength of a measured optical channel or of the optical noise sample. A data analyzer, such as a microprocessor, receives the electrical signals output by the power meter and calculates the optical noise at the wavelengths of each of the N optical channels based upon the measured noise sample. Using the calculated optical noise values, the data analyzer determines the signal to noise ratio of each optical channel. Advantageously, the technique of the present invention uses a minimum of power measurements to accurately determine the signal-to-noise ratios of the optical channels.
摘要翻译：本发明提供一种用于WDM光通信系统的光监控系统。在示例性实施例中，监视系统包括波长选择装置，其接收包括多个光信道和光噪声（例如，ASE）的WDM光通信信号。波长选择装置分别输出对应于每个光通道的光信号和在未被一个光通道占用的波长处拍摄的至少一个光噪声样本。至少一个光功率计与波长选择装置光学通信，用于测量每个光通道和光噪声样本的光功率。光功率计输出指示测量光信道或光噪声样本的强度的电信号。诸如微处理器的数据分析器接收由功率计输出的电信号，并且基于测量的噪声样本计算N个光通道中的每一个的波长处的光噪声。使用计算出的光噪声值，数据分析器确定每个光通道的信噪比。有利地，本发明的技术使用最小功率测量来精确地确定光信道的信噪比。

7. 发明授权

US5778132A Modular optical amplifier and cassette system 失效
标题翻译：模块化光放大器和盒式系统
公开(公告)号：US5778132A
公开(公告)日：1998-07-07
申请号：US784909
申请日：1997-01-16
申请人： Andrei Csipkes , Henry H. Yaffe
发明人： Andrei Csipkes , Henry H. Yaffe
IPC分类号： G02B6/44 , H01S3/067 , G02B6/00 , G02B6/36
CPC分类号： H01S3/06704 , G02B6/4454
摘要： The present invention provides modular optical amplifier constituents suitable for constructing optical amplifiers of various designs and modular fiber optic cassettes. Each stage of a multiple stage optical amplifier is housed in a separate optical cassette. Optical pump(s) are separately packaged in pump modules to further simplify amplifier design and enhance amplifier manufacturability. In an exemplary embodiment, a modular optical amplifier is constructed comprising a first amplifier housing including a first optical cassette for holding a first amplifier stage. Cassette regions are provided for receiving one or more passive optical components used with the first stage of the optical amplifier. A first length of rare-earth doped optical fiber is retained by cassette retaining projections and optically communicates with a pump interconnection element. A second amplifier housing is provided comprising a second optical cassette for holding a second amplifier stage in a substantially similar manner as the first optical cassette. At least one optical pump is retained in an optical pump housing separate from the first and second optical cassettes for supplying pump energy to the optical amplifier. The cassettes are optionally mounted vertically or adjacent one another on a circuit board. The circuit board may include electrical circuits for monitoring amplifier performance and for passing the monitoring information to a network management system.
摘要翻译：本发明提供适用于构造各种设计的光放大器和模块化光纤盒的模块化光放大器组件。多级光放大器的每个级都容纳在单独的光学盒中。光泵单独封装在泵模块中，以进一步简化放大器设计并增强放大器的可制造性。在示例性实施例中，模块化光放大器被构造成包括第一放大器壳体，该第一放大器壳体包括用于保持第一放大器级的第一光学盒。提供盒带区域用于接收与光放大器的第一级一起使用的一个或多个无源光学部件。稀土掺杂光纤的第一长度由盒保持突起保持并且与泵互连元件光学连通。提供了第二放大器壳体，其包括用于以与第一光学盒类似的方式保持第二放大器级的第二光学盒。至少一个光泵保持在与第一和第二光学盒分离的光泵壳体中，以将泵浦能量提供给光放大器。盒子可选地垂直地或彼此相邻地安装在电路板上。电路板可以包括用于监视放大器性能的电路和用于将监视信息传递到网络管理系统。

8. 发明授权

US5596661A Monolithic optical waveguide filters based on Fourier expansion 失效
标题翻译：基于傅里叶扩展的单片光波导滤波器
公开(公告)号：US5596661A
公开(公告)日：1997-01-21
申请号：US365618
申请日：1994-12-28
申请人： Charles H. Henry , Edward J. Laskowski , Yuan P. Li , Cecilia Y. Mak , Henry H. Yaffe
发明人： Charles H. Henry , Edward J. Laskowski , Yuan P. Li , Cecilia Y. Mak , Henry H. Yaffe
IPC分类号： G02B6/12 , G02B6/28 , G02B6/34 , H01S3/10 , H04J14/02 , C02B6/28
CPC分类号： G02B6/2938 , G02B6/12007 , G02B6/29355 , H01S3/10023 , H04J14/0201 , G02B6/2861 , H01S2301/04 , H04J14/02 , H04J14/0208 , H04J14/0209
摘要： In accordance with the invention, a new type of monolithic optical waveguide filter comprises a chain of optical couplers of different effective lengths linked by differential delays of different lengths. The transfer of the chain of couplers and delays is the sum of contributions from all possible optical paths, each contribution forming a term in a Fourier series whose sum forms the optical output. A desired frequency response is obtained by optimizing the lengths of the couplers and the delay paths so that the Fourier series best approximates the desired response. The filter is advantageously optimized so that it is insensitive to uncontrolled fabrication errors and is short in length. The wavelength dependence of practical waveguide properties is advantageously incorporated in the optimization. Consequently, the filter is highly manufacturable by mass production. Such filters have been shown to meet the requirements for separating the 1.3 and 1.551 .mu.m telecommunications channels and for flattening the gain of Er amplifiers.
摘要翻译：根据本发明，新型单片光波导滤波器包括通过不同长度的差分延迟链接的不同有效长度的光耦合器链。耦合器链和延迟的传输是来自所有可能的光路的贡献的总和，每个贡献形成傅立叶级数中的项，其和形成光输出。通过优化耦合器的长度和延迟路径来获得期望的频率响应，使得傅立叶级数最佳地近似于期望的响应。滤波器有利地被优化，使得其对不受控制的制造误差不敏感并且长度短。实际波导特性的波长依赖性有利地结合在优化中。因此，过滤器通过批量生产高度可制造。已经显示出这种滤波器符合分离1.3和1.551 m通信信道的要求，并使Er放大器的增益变扁平。

9. 发明授权

US5579421A Optical integrated circuits and methods 失效
标题翻译：光集成电路及方法
公开(公告)号：US5579421A
公开(公告)日：1996-11-26
申请号：US560755
申请日：1995-11-21
申请人： Charles Duvall , Ian A. White , Henry H. Yaffe
发明人： Charles Duvall , Ian A. White , Henry H. Yaffe
IPC分类号： G02B6/12 , H04B10/08 , H04J14/02 , G02B6/28
CPC分类号： H04J14/0282 , G02B6/12004 , H04B10/071 , H04J14/0221 , H04J14/0232 , H04J14/0247 , H04J14/0252 , H04J14/0226
摘要： An optical integrated circuit provides a 1.times.2 power splitting function for a communication system and additionally provides at least one type of upgrade capability for the system. The upgrade capability may be remote optical time domain reflectometry (OTDR) testing at an out-of-band wavelength. The OTDR testing is performed around a power splitter whereby a fault may be precisely located on an output line past the power splitter. Other upgrade capabilities that an optical integrated circuit may provide are the ability to add optical network units (ONUs) to the communication at a later time or to increase the bandwidth without requiring any new cables between a central office and the optical circuit. The optical integrated circuits can provide these upgraded capabilities with a higher reliability than circuits which are manufactured with discrete components and at a lower cost.
摘要翻译：光学集成电路为通信系统提供1x2功率分配功能，并且还为系统提供至少一种类型的升级能力。升级功能可能是带外波长的远程光时域反射（OTDR）测试。 OTDR测试围绕功率分配器执行，故障可能精确地位于通过功率分配器的输出线上。光学集成电路可能提供的其他升级功能是能够在以后的时间向通信添加光网络单元（ONU）或增加带宽，而不需要中心局和光电路之间的任何新电缆。光学集成电路可以提供比具有分立元件制造的电路更高的可靠性，并以更低的成本提供这些升级的能力。

10. 发明授权

US5440416A Optical network comprising a compact wavelength-dividing component 失效
标题翻译：光网络包括紧凑的波长分割部件
公开(公告)号：US5440416A
公开(公告)日：1995-08-08
申请号：US21698
申请日：1993-02-24
申请人： Leonard G. Cohen , Charles H. Henry , Rudolf F. Kazarinov , Henry H. Yaffe
发明人： Leonard G. Cohen , Charles H. Henry , Rudolf F. Kazarinov , Henry H. Yaffe
IPC分类号： H04J14/00 , G02B6/12 , G02B6/28 , G02B6/34 , H04B10/02 , H04B10/20 , H04B10/207 , H04B10/213 , H04B10/24 , H04J14/02
CPC分类号： H04B10/272 , G02B6/12011 , H04B10/2504 , G02B6/12007
摘要： An optical communication network includes a novel, passive optical component. This component combines the function of a splitter with the function of a wavelength-division multiplexer. These functions are performed in distinct wavelength bands. In one embodiment, the inventive component is made using silicon optical bench technology.
摘要翻译：光通信网络包括新颖的无源光学部件。该组件将分路器的功能与波分复用器的功能相结合。这些功能在不同的波段进行。在一个实施例中，使用硅光学平台技术制造本发明的部件。

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