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公开(公告)号：US5504608A
公开(公告)日：1996-04-02
申请号：US450514
申请日：1995-05-25
IPC分类号： G02B6/34 , H04B10/13 , H04B10/158 , H04J14/02
CPC分类号： H04B10/675 , G02B6/2937 , G02B6/29395 , H04B10/2581 , H04B10/67
摘要： This invention provides an apparatus and a method of filtering a MM Wavelength Division Multiplexed (WDM) signal operating in the 1548 to 1560 nm region. The wavelengths of the MM are spaced 1-12 nm apart and centered about 1558 nm. The adjustable filters for tuning MM optical signals encompass a carousel and a mechanical system for positioning one of the filters in the path of the MM WDM signal and tracking the signal. An algorithm controls the mechanical system for tracking and positioning one of the filters in the path of the MM WDM signal. The filter in position filters one of a plurality of wavelengths and tunes the filter to compensate for temperature changes.
摘要翻译： 本发明提供了一种在1548到1560nm区域中对MM波分复用（WDM）信号进行滤波的装置和方法。 MM的波长间隔1-12纳米，中心约1558纳米。 用于调谐MM光信号的可调滤波器包括转盘和机械系统，用于将MM WDM信号的路径中的一个滤波器定位并跟踪该信号。 算法控制用于跟踪和定位MM WDM信号路径中的一个滤波器的机械系统。 滤波器位置滤波多个波长中的一个，并调谐滤波器以补偿温度变化。
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公开(公告)号：US5623567A
公开(公告)日：1997-04-22
申请号：US632283
申请日：1996-04-15
CPC分类号： G02B6/2826 , G02B6/283
摘要： A method for preparing optical fibers for an evanescent field coupler by forming a groove along a top surface of a substrate block, wherein the groove is formed shallower than the diameter of a stripped fiber. An optical fiber is positioned in the groove, wherein a center portion of the optical fiber is stripped of its coating. The optical fiber is glued in the groove, then polished to remove a portion of its cladding to form a coupling region, while not polishing the top surface of the substrate block. An optical signal is applied to an end of the optical fiber while loss of the optical signal is measured at the coupling region. Polishing and monitoring are repeated until a desired loss value is reached. The coupler can be added to an operating optical communication system.
摘要翻译： 一种通过沿衬底块的顶表面形成凹槽来制备消逝场耦合器的光纤的方法，其中形成的凹槽比剥离光纤的直径浅。 将光纤定位在凹槽中，其中光纤的中心部分剥离其涂层。 将光纤胶合在槽中，然后抛光以除去其包层的一部分以形成耦合区域，同时不抛光衬底块的顶表面。 光信号被施加到光纤的端部，同时在耦合区域处测量出光信号的损失。 重复抛光和监测，直到达到所需的损失值。 耦合器可以被添加到操作的光通信系统中。
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公开(公告)号：US5517590A
公开(公告)日：1996-05-14
申请号：US251452
申请日：1994-05-31
CPC分类号： G02B6/2552 , G02B6/2852
摘要： Signal energy in an installed optical fiber is extracted without using a physical connector, by an improved process in which the fiber is bent to within a prescribed range of angles, then controllably heated, and thereafter controllably cooled. The resulting structure exhibits relatively low permanent stress. A fiber end conventionally placed at the bend point receives unusually useful amounts of optical signal which can be routed to optical branch circuits in, for example, a building or a LAN.
摘要翻译： 通过改进的方法将光纤中的信号能量提取而不使用物理连接器，其中光纤弯曲到规定的角度范围内，然后被可控地加热，然后可控地冷却。 所得结构表现出较低的永久应力。 通常放置在弯曲点处的光纤端接收异常有用量的光信号，其可被路由到例如建筑物或LAN中的光分支电路。
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公开(公告)号：US5533155A
公开(公告)日：1996-07-02
申请号：US366939
申请日：1994-12-30
CPC分类号： G02B6/3508 , G02B6/2826 , G02B6/283 , G02B6/3536 , G02B6/3546 , G02B6/3562 , G02B6/3574 , G02B6/3578 , G02B6/3582
摘要： An evanescent field coupler comprising a coupler holder, a first optical fiber mounted in a first substrate block, and a second optical fiber mounted in a second substrate block. The first substrate block is compliantly mounted to the holder. Means are included for positioning the substrate blocks with respect to the other for switching and adjustment of the coupling ratio. The compliant mount elastically deforms during switching and/or alignment to facilitate accurate, repeatable switching, while maintaining the desired coupling ratio between the optical fibers.
摘要翻译： 一种消逝场耦合器，包括耦合器保持器，安装在第一衬底块中的第一光纤和安装在第二衬底块中的第二光纤。 第一基板块被顺从地安装到支架上。 包括用于将衬底块相对于另一个定位的装置用于切换和调节耦合比。 柔性安装座在开关和/或对准期间弹性变形，以便在保持光纤之间期望的耦合比的同时有助于精确，可重复的切换。
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公开(公告)号：US5023139A
公开(公告)日：1991-06-11
申请号：US418057
申请日：1989-10-06
CPC分类号： B82Y5/00 , A61K41/0042 , G02F1/355 , Y10S428/913 , Y10S977/773 , Y10S977/777 , Y10S977/834 , Y10T428/2982 , Y10T428/2991
摘要： Particles comprising a core surrounded by at least one shell wherein at least one of the core or one of the shells is a metal and at least one of the core or one of the shells is a dielectric material which exhibits a third order nonlinear response. The "shell" of a metal particle may be the adjacent region of a medium in which said particle is suspended, said medium having a third order nonlinear response. In a preferred embodiment, the particles are suspended in a dielectric medium that may be linear or may exhibit a third order nonlinear response. Enhancement of the effective .chi..sup.(3) of the particles and suspensions result from the concentration of the electric field in and around the particles at the plasmon resonance frequency of the metal.
摘要翻译： 包含被至少一个壳包围的芯的颗粒，其中所述芯或所述壳中的至少一个是金属，并且所述芯或所述壳中的至少一个是呈现三阶非线性响应的电介质材料。 金属颗粒的“壳”可以是其中所述颗粒悬浮的介质的相邻区域，所述介质具有三阶非线性响应。 在优选的实施方案中，颗粒悬浮在可以是线性的或可以呈现三阶非线性响应的电介质中。 颗粒和悬浮液的有效i（3）的增强是由金属等离子体共振频率下的颗粒内和周围的电场浓度导致的。
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