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1.发明授权Article comprising a dispersion compensating grating with low polarization mode dispersion 有权该文章包括具有低偏振模色散的色散补偿光栅
公开(公告)号：US6137924A
公开(公告)日：2000-10-24
申请号：US145593
申请日：1998-09-02
CPC分类号： G02B6/4246 , G02B6/02109 , G02B6/274 , G02B6/278 , G02B6/29317 , G02B6/29394 , G02B6/272
摘要： A dispersion compensating chirped optical fiber Bragg grating according to our invention is formed in polarization maintaining (PM) fiber having birefringence of at least 10.sup.-6, preferably 10.sup.-5 or more. Use of the PM fiber makes possible substantial cancellation of the polarization mode dispersion that typically is unavoidably present in chirped Bragg gratings for dispersion compensation.
摘要翻译： 根据本发明的色散补偿啁啾光纤布拉格光栅形成在具有至少10-6，优选10-5或更大的双折射的偏振维持（PM）光纤中。 使用PM光纤使得可能实质上消除通常不可避免地存在于用于色散补偿的啁啾布拉格光栅中的偏振模色散。
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公开(公告)号：US06049414A
公开(公告)日：2000-04-11
申请号：US197396
申请日：1998-11-20
申请人： Rolando Patricio Espindola , Thomas Andrew Strasser , Jefferson Lynn Wagener , Paul Francis Wysocki
发明人： Rolando Patricio Espindola , Thomas Andrew Strasser , Jefferson Lynn Wagener , Paul Francis Wysocki
IPC分类号： H01S3/06 , G02B6/00 , G02B6/02 , H01S3/067 , H01S3/10 , H04B10/17 , G02B6/34 , H01S3/30 , H04J14/02
CPC分类号： H04B10/2941 , H01S3/10023 , H01S2301/04 , H01S3/06758
摘要： In accordance with the invention, a temperature-dependent rare earth doped waveguide optical amplifier is compensated by a temperature-dependent loss filter. The filter characteristics are designed to be temperature-dependent filters so that the gain characteristic of the amplifier is compensated over a practical operating temperature range. In essence, the amplifier comprises a length of optical waveguide for transmitting optical signals, a rare earth doped amplifying region in the waveguide for amplifying the transmitted optical signals, a pumping source for optically pumping the amplifying region, and a temperature-dependent loss filter. A typical design compensates an EFDA to a variation of less than 1 dB over a temperature range of -40.degree. C. to 85.degree. C. and a spectral range of at least 20 nm.
摘要翻译： 根据本发明，温度依赖性稀土掺杂波导光放大器由温度依赖性损耗滤波器补偿。 滤波器特性被设计为温度依赖滤波器，使得放大器的增益特性在实际工作温度范围内得到补偿。 本质上，放大器包括用于传输光信号的一段光波导，用于放大透射光信号的波导中的稀土掺杂放大区域，用于光泵浦放大区域的泵浦源和温度依赖损耗滤波器。 典型的设计在-40℃至85℃的温度范围和至少20nm的光谱范围内将EFDA补偿为小于1dB的变化。
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3.发明授权公开(公告)号：US06658215B1
公开(公告)日：2003-12-02
申请号：US09406577
申请日：1999-09-24
IPC分类号： H04B1000
CPC分类号： G02B6/278 , H04B10/2569
摘要： A compensation arrangement for addressing the problem of first-order and second-order polarization mode dispersion (PMD) in an optical fiber communication system includes separate, independent elements for each type of PMD. First-order PMD may be compensated using conventional techniques related to adjusting the transit time differential between the polarization states. The second-order polarization mode dispersion is compensated by recognizing the separate sources of second-order PMD (pulse broadening analogous to chromatic dispersion, additional pulse broadening due to optical filtering (narrowing), and coupling of a portion of the optical signal into the orthogonal polarization relative to the main pulse with a different transmit time. A chirped fiber grating with a variable temperature gradient, a complementary optical filter with variable spectral transmission and a polarizer, respectively, can be used to compensate for these three sources of second-order PMD.
摘要翻译： 用于解决光纤通信系统中的一阶和二阶偏振模色散（PMD）问题的补偿装置包括用于每种类型的PMD的单独的独立元件。 可以使用与调整极化状态之间的通过时间差有关的常规技术来补偿一阶PMD。 通过识别二阶PMD的分离源（类似于色散的脉冲扩展，由于光学滤波（窄化）引起的附加脉冲展宽）和将光信号的一部分耦合到正交中来补偿二阶偏振模色散 具有不同传输时间的相对于主脉冲的极化可以分别使用具有可变温度梯度的啁啾光纤光栅，具有可变光谱透射的互补滤光器和偏振器来补偿这三个源的二阶PMD 。
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公开(公告)号：US08351789B2
公开(公告)日：2013-01-08
申请号：US11781940
申请日：2007-07-23
IPC分类号： H04J4/00
CPC分类号： G02B6/3512 , G02B6/29311 , G02B6/29313 , G02B6/3546 , G02B6/356 , H04J14/007
摘要： A programmable encoder is provided that includes at least one optical input for receiving a modulated broadband optical signal and at least one optical output. A dispersion element receives the optical signal from the optical input and spatially separates the optical signal into a plurality of wavelength components. A collimating element is provided for collimating the plurality of wavelength components. An actuatable optical arrangement receives the collimated plurality of wavelength components from the collimating element. The actuatable optical arrangement includes a digital micromirror device (DMD) from which a programmably selected subset of wavelength components are reflected at least twice before being directed to a selected one of optical outputs to thereby encode the CDMA signal.
摘要翻译： 提供了一种可编程编码器，其包括用于接收调制的宽带光信号和至少一个光输出的至少一个光输入。 色散元件从光输入端接收光信号，并将光信号空间分离成多个波长分量。 提供了用于准直多个波长分量的准直元件。 可致动的光学装置从准直元件接收准直的多个波长分量。 可致动光学装置包括数字微镜装置（DMD），可编程选择的波长分量子集在被指向所选择的一个光输出端之前被反射至少两次，从而对CDMA信号进行编码。
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公开(公告)号：US07408639B1
公开(公告)日：2008-08-05
申请号：US11113957
申请日：2005-04-25
IPC分类号： G01J3/28
CPC分类号： G02B6/2713 , G02B6/2706 , G02B6/272 , G02B6/2793 , G02B6/2931 , G02B6/29313 , G02B6/2938 , G02B6/29395 , G02B6/3512 , G02B6/356 , H04J14/0205 , H04J14/0206 , H04J14/0208 , H04J14/021 , H04J14/0212 , H04J14/0213 , H04Q11/0005 , H04Q2011/0026 , H04Q2011/003
摘要： An optical spectral detection device utilizing free space optical beam propagation is provided. The device includes at least one optical fiber input, at least one opto-electronic detection device, an optical element having an actuator with at least one tilt axis, and a diffraction element having a surface thereon. The device also includes an optical beam transfer arrangement positioned between the optical element and the diffraction element such that tilt actuation of the optical element elicits a proportional change in an angle of incidence of the optical beam onto the diffraction element, wherein the center of rotation for the angular change is the surface of the diffraction element. The spectral properties of the optical beam that are detected are selected by selectively positioning the optical element about at least one of the tilt axes.
摘要翻译： 提供了利用自由空间光束传播的光谱检测装置。 该装置包括至少一个光纤输入，至少一个光电检测装置，具有至少一个倾斜轴的致动器的光学元件以及在其上具有表面的衍射元件。 该装置还包括位于光学元件和衍射元件之间的光束传递装置，使得光学元件的倾斜致动引起光束到衍射元件的入射角的成比例的变化，其中，用于 角度变化是衍射元件的表面。 通过围绕至少一个倾斜轴选择性地定位光学元件来选择检测到的光束的光谱特性。
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公开(公告)号：US20080166087A1
公开(公告)日：2008-07-10
申请号：US10632670
申请日：2003-08-01
IPC分类号： G02B6/35
CPC分类号： H04J14/0283 , G02B6/29367 , G02B6/2938 , G02B6/29383 , G02B6/29391 , G02B6/29395 , G02B6/3512 , G02B6/3548 , G02B6/356 , G02B6/357 , G02B6/3578 , G02B6/3582 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/021 , H04J14/0212 , H04J14/0217 , H04J14/022 , H04J14/0286 , H04L12/42 , H04L2012/421 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/003 , H04Q2011/0052 , H04Q2011/0079 , H04Q2011/0092
摘要： An all-optical, optical cross-connect includes first and second pluralities of multiport optical devices. Each of the first plurality of multiport optical devices have at least one input port for receiving a WDM optical signal and a plurality of output ports for selectively receiving one of more wavelength components of the optical signal. Each of the second plurality of multiport optical devices have a plurality of input ports for selectively receiving one of more wavelength components of the optical signal and at least one output port for selectively receiving one of more wavelength components of the optical signal. At least one of the first or second plurality of multiport optical devices are all-optical switches that can route every wavelength component independently of every other wavelength component. The plurality of input ports of the second plurality of multiport optical devices are optically coupled to respective ones of the plurality of output ports of the first plurality of multiport optical devices.
摘要翻译： 全光学交叉连接包括第一和第二多个多端口光学器件。 第一多个多端口光学器件中的每一个具有用于接收WDM光信号的至少一个输入端口和用于选择性地接收光信号的更多波长分量之一的多个输出端口。 第二多个多端口光学器件中的每一个具有多个输入端口，用于选择性地接收光信号的多个波长分量中的一个以及至少一个输出端口，用于选择性地接收光信号的多个波长分量之一。 第一或第二多个多端口光学器件中的至少一个是全光开关，其可以独立于每隔一个波长分量路由每个波长分量。 第二多个多端口光学器件的多个输入端口光学耦合到第一多个多端口光学器件的多个输出端口中的相应的输入端口。
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7.发明授权公开(公告)号：US06950611B2
公开(公告)日：2005-09-27
申请号：US09781857
申请日：2001-02-12
IPC分类号： H04B10/135 , H04B10/00
CPC分类号： H04B10/2572
摘要： Polarization monitoring and control in a lightwave communication system is achieved by using an in-line polarimeter in conjunction with a polarization controller. The devices are readily compact, accurate and therefore capable of implementation in a variety of system applications. In one embodiment, a polarimeter and controller can be coupled together by a feedback loop between the polarimeter output and the controller input to provide “active polarization control” (APC).
摘要翻译： 光波通信系统中的极化监测和控制通过使用在线偏振计和偏振控制器来实现。 这些设备容易紧凑，准确，因此能够在各种系统应用中实现。 在一个实施例中，偏振计和控制器可以通过偏振计输出和控制器输入之间的反馈回路耦合在一起，以提供“主动偏振控制”（APC）。
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公开(公告)号：US06631222B1
公开(公告)日：2003-10-07
申请号：US09571833
申请日：2000-05-16
IPC分类号： G02B635
CPC分类号： H04Q11/0005 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0026
摘要： An optical switch includes at least one input port for receiving a WDM optical signal having a plurality of wavelength components, at least three output ports, and a plurality of wavelength selective elements each selecting one of the wavelength components from among the plurality of wavelength components. A plurality of optical elements are also provided, each of which are associated with one of the wavelength selective elements. Each of the optical elements direct the selected wavelength component that is selected by its associated selected element to a given one of the output ports independently of every other wavelength component. The given output port is variably selectable from among all the output ports.
摘要翻译： 光开关包括至少一个用于接收具有多个波长分量的WDM光信号，至少三个输出端口和多个波长选择元件的输入端口，每个波长选择元件从多个波长分量中选择一个波长分量。 还提供了多个光学元件，每个光学元件与波长选择元件中的一个相关联。 每个光学元件独立于每隔一个波长分量，将由其相关联的选定元素选择的所选择的波长成分引导到给定的一个输出端口。 给定的输出端口可从所有输出端口中进行变化选择。
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9.发明授权公开(公告)号：US06370300B1
公开(公告)日：2002-04-09
申请号：US09252708
申请日：1999-02-18
申请人： Benjamin John Eggleton , Torben N. Nielsen , John A. Rogers , Thomas Andrew Strasser , Kenneth Lee Walker
发明人： Benjamin John Eggleton , Torben N. Nielsen , John A. Rogers , Thomas Andrew Strasser , Kenneth Lee Walker
IPC分类号： G02B634
CPC分类号： H04B10/2519 , H04B2210/252
摘要： In accordance with the invention, an optical communication system is provided with one or more automatic dispersion compensation modules. Each module has an adjustable dispersion element, a data integrity monitor and a feedback network whereby the monitor adjusts the dispersion element to optimize system performance. In a preferred embodiment the dispersion compensating modules comprise chirped fiber Bragg gratings in which the chirp is induced in the grating by passing a current along distributed thin film heaters deposited along the length of the fiber. The magnitude of the applied current determines the dispersion of the grating. A data integrity monitor is configured to sense the integrity of transmitted data and to provide electrical feedback for controlling the current applied to the grating.
摘要翻译： 根据本发明，光通信系统设置有一个或多个自动色散补偿模块。 每个模块都具有可调色散元件，数据完整性监视器和反馈网络，由此监视器调整色散元件以优化系统性能。 在优选实施例中，色散补偿模块包括啁啾光纤布拉格光栅，其中通过沿沿着光纤长度沉积的分布式薄膜加热器传递电流而在光栅中感应啁啾。 施加电流的大小决定了光栅的色散。 数据完整性监视器被配置为感测传输数据的完整性，并提供用于控制施加到光栅的电流的电反馈。
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公开(公告)号：US07965911B1
公开(公告)日：2011-06-21
申请号：US11880114
申请日：2007-07-19
IPC分类号： G02B6/28
CPC分类号： G02B6/2706 , G02B6/2931 , G02B6/29311 , G02B6/29313 , G02B6/29314 , G02B6/29383
摘要： An optical wavelength routing device utilizes a free space optical beam propagating therethrough is provided. The device includes at least one optical fiber input, at least one optical fiber output, an optical element having an actuator with at least one tilt axis and a diffraction element having a surface thereon. The device also includes an optical beam-splitting element having spatially varying optical properties. An optical beam transfer arrangement is positioned between the optical element and the diffraction element such that tilt actuation of the optical element elicits a proportional change in an angle of incidence of the optical beam onto the diffraction element, wherein the center of rotation for the angular change is the surface of the diffraction element. Optical routing between the fiber input and the fiber output can be configured by the positioning of the optical element.
摘要翻译： 光波长路由器件利用通过其传播的自由空间光束。 该装置包括至少一个光纤输入，至少一个光纤输出，具有至少一个倾斜轴的致动器的光学元件和在其上具有表面的衍射元件。 该装置还包括具有空间变化的光学特性的光束分离元件。 光束传递装置位于光学元件和衍射元件之间，使得光学元件的倾斜致动引起光束到衍射元件的入射角的成比例的变化，其中角度变化的旋转中心 是衍射元件的表面。 光纤输入和光纤输出之间的光路由光学元件的定位可以配置。
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