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公开(公告)号：US06882770B2
公开(公告)日：2005-04-19
申请号：US09896085
申请日：2001-06-29
申请人： David Thomas Neilson , Roland Ryf
发明人： David Thomas Neilson , Roland Ryf
CPC分类号： G02B6/3582 , G02B6/3512 , G02B6/3556 , G02B6/43 , G02B26/0841
摘要： An optical MEMS devices is imaged to a different location at which a second optical MEMS device is located in a manner that effectively combines the tilt angles of at least one micro mirror of each of the first and second optical devices. The imaging system may reproduce the angle of reflection of the light from the first micro mirror. This may be achieved using a telecentric system, also known as a 4 f system, as the imaging system. The physical size of the arrangement may be reduced by compacting the optical path, e.g., using appropriate conventional mirrors, and/or employing folded arrangements, i.e., arrangements in which there is only one MEMS device stage that does double duty for both input and output through the use of at least one conventional mirror.
摘要翻译： 将光学MEMS器件成像到第二光学MEMS器件所在的不同位置，以有效地组合第一和第二光学器件中的每一个的至少一个微镜的倾斜角度的方式。 成像系统可以再现来自第一微镜的光的反射角度。 这可以使用远心系统（也称为4f系统）作为成像系统来实现。 布置的物理尺寸可以通过压缩光路来减少，例如使用适当的常规反射镜，和/或采用折叠布置，即其中只有一个MEMS器件级对输入和输出进行双重占空比的布置 通过使用至少一个传统的镜子。
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公开(公告)号：US06836381B2
公开(公告)日：2004-12-28
申请号：US10620990
申请日：2003-07-16
IPC分类号： G02B508
CPC分类号： G02B26/0841
摘要： An optical device for routing a plurality of optical signals between a first port and a second port is disclosed. The optical device includes a mirror array having a plurality of reflective elements. Each optical input signal is directed by a reflective element in a direction designated by a control signal. The optical device further includes a curved mirror for receiving each directed optical signal from the respective reflective element, and for reflecting each directed optical signal to the first or second port.
摘要翻译： 公开了一种用于在第一端口和第二端口之间路由多个光信号的光学装置。 光学装置包括具有多个反射元件的反射镜阵列。 每个光输入信号由反射元件在由控制信号指定的方向上引导。 光学装置还包括用于从各个反射元件接收每个定向光信号并用于将每个定向的光信号反射到第一或第二端口的曲面镜。
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公开(公告)号：US06704476B2
公开(公告)日：2004-03-09
申请号：US09895949
申请日：2001-06-29
IPC分类号： G02B642
CPC分类号： G02B6/3582 , G02B6/3512 , G02B6/3556 , G02B6/43 , G02B26/0841
摘要： In an all optical switch an imaging system is interposed between the micro lens array and the moveable micro mirrors of a MEMS device to which, or from which, the light beams are directed. This causes an image of the micro lens array to be formed at the MEMS device, or vice-versa, thus effectively eliminating the distance between the micro lens array and the MEMS device. The imaging system may be a telecentric system. The size of the arrangement may be reduced by compacting the optical path, e.g., using appropriate conventional mirrors, and/or employing folded arrangements, i.e., arrangements in which there is only one MEMS device stage that does double duty for both input and output through the use of at least one conventional mirror. The overall system is arranged to account for any inversions introduced.
摘要翻译： 在所有光学开关中，成像系统被插入在微透镜阵列和MEMS装置的可移动的微反射镜之间，所述MEMS装置的光束或由该光学器件导向。 这导致微透镜阵列的图像形成在MEMS器件上，反之亦然，因此有效地消除了微透镜阵列与MEMS器件之间的距离。 成像系统可以是远心系统。 可以通过压缩光路来缩小布置的尺寸，例如使用适当的常规反射镜，和/或采用折叠的布置，即其中只有一个MEMS器件级对输入和输出通过双重占空比的布置 使用至少一个传统的镜子。 整个系统被安排为介绍引入的任何反转。
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公开(公告)号：US06507421B1
公开(公告)日：2003-01-14
申请号：US09414621
申请日：1999-10-08
IPC分类号： H04J1400
CPC分类号： H04Q11/0005 , H04Q2011/0026 , H04Q2011/0043 , H04Q2011/0083
摘要： An optical crossconnect (OXC) fabric including an array of tiltable mirrors, a reflector and a plurality of optical fibers controls the position of the mirrors to optimize the transfer of a signal between an input optical fiber and an output optical fiber by monitoring the optical signal at an optical translation unit in each of the input optical fiber and the output optical fiber. The optical translation units are operable for regenerating the optical signals transmitted through the fibers.
摘要翻译： 包括可倾斜反射镜阵列，反射器和多个光纤的光学交叉连接（OXC）结构控制反射镜的位置，以通过监视光信号来优化输入光纤和输出光纤之间的信号传输 在每个输入光纤和输出光纤中的光学平移单元处。 光学平移单元可操作用于再生通过光纤传输的光信号。
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公开(公告)号：US06922502B2
公开(公告)日：2005-07-26
申请号：US10396238
申请日：2003-03-25
CPC分类号： H04B10/299
摘要： An optical filter apparatus for processing an optical signal comprising a spectrum broadening device for spectrally dividing one or more channels of the optical signal into a discrete set of spectral components for each channel, a collector for collecting the spectral components on a discrete number of corresponding light channels, one or more processors for individually processing one or more of the spectral components on the light channels, and a combiner for recombining the spectral components on the light channels.
摘要翻译： 一种用于处理光信号的光滤波器装置，包括用于将光信号的一个或多个通道频谱分割成每个通道的一组离散频谱分量的频谱展宽装置，用于在离散数量的相应光上收集频谱分量的收集器 通道，用于单独处理光通道上的一个或多个光谱分量的一个或多个处理器，以及用于重新组合光通道上的光谱分量的组合器。
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6.发明授权Method and apparatus for spatial-shift wavelength multiplexing in communication systems 有权通信系统中空间位移波长复用的方法和装置公开(公告)号：US06763163B1
公开(公告)日：2004-07-13
申请号：US09625526
申请日：2000-07-26
IPC分类号： G02B634
CPC分类号： G02B6/4215
摘要： Methods and apparatus for spatially-shifting and multiplexing optical signals for transmission in a wavelength division multiplexed or dense wavelength division multiplexed optical communication system linearly disperse the optical signals and then spatially, laterally shift the signals. The spatially shifted, dispersed signals are thereafter re-imaged to remove the linear dispersion so that the spatially shifted signals can then be transmitted through the optical communication system. The spatially-shifted, multiplexed signals have a flat passband with sharp transition points so that the transmitted signals are routed through the optical communication system with low loss and high integrity.
摘要翻译： 用于波分复用或密集波分复用光通信系统中的用于传输的光信号的空间移位和复用的方法和装置线性地分散光信号，然后在空间上横向移位信号。 然后，空间移位的分散信号被重新成像以去除线性色散，使得空间位移信号然后可以通过光通信系统传输。 空间移位的多路复用信号具有具有尖锐转变点的平坦通带，使得发送的信号以低损耗和高完整性通过光通信系统。
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公开(公告)号：US06657770B2
公开(公告)日：2003-12-02
申请号：US09944800
申请日：2001-08-31
IPC分类号： G02B2600
CPC分类号： G02B6/2931 , G02B6/2938 , G02B6/29395 , H04J14/02 , H04Q11/0005 , H04Q2011/0016
摘要： A programmable optical demultiplexer can independently assign every input optical channel in a WDM optical communications signal to depart from any desired output port. The demultiplexer device can also be operated in the reverse direction, and thus achieve programmable optical multiplexer functionality, by accepting different wavelengths at each of multiple input ports and efficiently combining the wavelength channels at the multiplexer output port. The programmable multiplexer/demultiplexer device has an optical arrangement for spatially dispersing the optical wavelengths, and tunable micro-mirrors for beam steering each channel independently. Controlling the beam reflection direction determines the connectivity between the input and output ports at the wavelength level.
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8.发明授权System and method for training an optical cross-connect comprising steerable switching elements 有权用于训练包括可转向开关元件的光学交叉连接的系统和方法公开(公告)号：US06411751B1
公开(公告)日：2002-06-25
申请号：US09680753
申请日：2000-10-06
IPC分类号： G02B626
CPC分类号： G02B6/3588 , G02B6/3512 , G02B6/3556 , G02B6/356 , G02B6/3586
摘要： Signal losses in an optical cross-connect having steerable switching elements for routing optical signals are substantially reduced by controllably and selectively training the steerable switching elements as a function of measured input and output power of a cross-connected optical signal. More specifically, adjustments to the alignment of one or more steerable switching elements associated with a particular cross-connection are performed in a non-intrusive manner to increase the optical signal power in an optical signal while maintaining an active cross-connection of the optical signal. In one illustrative embodiment, optical monitoring arrangements monitor the optical signal power of optical signals coupled to the cross-connect inputs and outputs. The cross-connect includes a switching fabric comprising a plurality of steerable MEMS mirror elements used as switching elements for controllably and selectively directing the light beams within the cross-connect. By comparing the measured optical signal power with a previously stored value representing the expected optical signal power for that cross-connection, small adjustments can then be made, as appropriate, to optimize the alignment of the mirrors associated with the cross-connection. For example, if the difference between the measured and expected optical signal power exceeds a prescribed threshold, then a dithering process is initiated whereby individual mirrors are “walked through” alternate tilt positions until the measured optical signal power has been optimized, e.g., increased.
摘要翻译： 具有用于路由光信号的可转向开关元件的光学交叉连接中的信号损耗通过可控地和有选择地训练作为交叉连接的光信号的测量的输入和输出功率的函数的可操纵开关元件而大大减少。 更具体地，对于与特定交叉连接相关联的一个或多个可转向开关元件的对准的调整以非侵入式方式执行，以增加光信号中的光信号功率，同时保持光信号的有源交叉连接 。 在一个说明性实施例中，光学监视装置监视耦合到交叉连接输入和输出的光信号的光信号功率。 交叉连接包括交换结构，其包括多个可转向的MEMS反射镜元件，其被用作开关元件，用于在交叉连接期间可控地和选择性地引导光束。 通过将所测量的光信号功率与表示用于该交叉连接的预期光信号功率的先前存储的值进行比较，则可以适当地进行小的调整，以优化与交叉连接相关联的反射镜的对准。 例如，如果测量的和期望的光信号功率之间的差超过规定的阈值，则启动抖动处理，由此各个反射镜“行进”交替的倾斜位置，直到所测量的光信号功率已被优化，例如增加。
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公开(公告)号：US09008515B2
公开(公告)日：2015-04-14
申请号：US13018109
申请日：2011-01-31
CPC分类号： H04J14/0221 , G02B5/20 , G02F1/23 , H01S5/0427 , H04B10/506
摘要： An apparatus includes an array of lasers, an array of electrical drivers, and optical filter. Each laser is configured to produce light in a corresponding wavelength-channel, wherein the wavelength-channels of different ones of the lasers are different. The electrical drivers are connected to directly modulate the lasers. Each driver produces a first driving current or voltage to cause a corresponding one of the lasers to be in a first lasing state and produces a different second driving current or voltage to cause the corresponding one of the lasers to be in a different second lasing state. The optical filter is connected to receive light output by the lasers. The optical filter selectively attenuates light from each of the lasers in the first lasing states thereof and to selectively pass light from each of the lasers in second lasing states thereof.
摘要翻译： 一种装置包括激光器阵列，电驱动器阵列和光学滤波器。 每个激光器被配置为产生相应波长通道中的光，其中不同激光器的波长通道是不同的。 电驱动器被连接以直接调制激光器。 每个驱动器产生第一驱动电流或电压以使相应的一个激光器处于第一激光状态并产生不同的第二驱动电流或电压，以使相应的一个激光器处于不同的第二激光状态。 光滤波器被连接以接收由激光器输出的光。 光学滤波器在其第一激光状态中选择性地衰减来自每个激光器的光，并且在第二激光器的第二激光状态下选择性地传递来自每个激光器的光。
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10.发明申请SCALABLE LOAD-BALANCED INTERCONNECT SWITCH BASED ON AN ARRAYED WAVEGUIDE GRATING 审中-公开基于阵列波形光栅的可分级负载平衡互连开关公开(公告)号：US20090324221A1
公开(公告)日：2009-12-31
申请号：US12164590
申请日：2008-06-30
申请人： David Thomas Neilson
发明人： David Thomas Neilson
IPC分类号： H04J14/00
CPC分类号： H04Q11/0005 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0032 , H04Q2011/0039 , H04Q2011/005
摘要： According to one embodiment, an interconnect switch has an arrayed waveguide grating (AWG) having N input ports and N output ports. The AWG is characterized by two or more diffraction orders and is adapted to route optical signals from the input ports to the output ports. In a fully deployed implementation, the interconnect switch has N input line cards and N output line cards. Each of the input line cards is adapted to generate N respective modulated optical signals using carrier wavelengths corresponding to at least two different diffraction orders of the AWG to provide wavelength redundancy for optically connecting the input line card and any of the output line cards. In a partially deployed implementation, the interconnect switch has fewer than N input line cards and/or fewer than N output line cards. In either the fully deployed implementation or a partially deployed implementation, the interconnect switch is capable of load balancing.
摘要翻译： 根据一个实施例，互连开关具有具有N个输入端口和N个输出端口的阵列波导光栅（AWG）。 AWG的特征在于两个或更多个衍射级，并且适于将光信号从输入端口路由到输出端口。 在完全部署的实施中，互连开关具有N个输入线卡和N个输出线卡。 每个输入线卡适于使用对应于AWG的至少两个不同衍射级的载波波长来产生N个相应的调制光信号，以提供用于光学连接输入线卡和任何输出线卡的波长冗余。 在部署部署的实施中，互连交换机具有少于N个输入线路卡和/或少于N个输出线路卡。 在完全部署的实施或部分部署的实施中，互连交换机能够进行负载平衡。
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