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公开(公告)号：US06456426B1
公开(公告)日：2002-09-24
申请号：US09922920
申请日：2001-08-07
IPC分类号： H01S310
CPC分类号： H01S3/302 , G02B6/425 , H01S3/06754 , H01S3/094011 , H01S3/094076 , H01S3/094096 , H01S3/10007 , H04B10/2916
摘要： Optical amplifiers are provided in which optical gain is produced by Raman pumping fiber. The Raman-pumped fiber may be a span of transmission fiber or a coil of fiber in a discrete amplifier. Raman pump light may be provided using laser diodes operating at different wavelengths. The Raman pump light that is produced by the laser diodes may be modulated to reduce pump interactions in the fiber. Raman pump light may be modulated by directly modulating the laser diodes or by using optical components that modulate constant power pump light from the laser diodes.
摘要翻译： 提供光放大器，其中通过拉曼泵浦光纤产生光增益。 拉曼泵浦光纤可以是分立放大器中的传输光纤或光纤线圈的跨度。 可以使用以不同波长工作的激光二极管来提供拉曼泵浦光。 可以调制由激光二极管产生的拉曼泵浦光，以减少光纤中的泵相互作用。 可以通过直接调制激光二极管或通过使用调制来自激光二极管的恒定功率泵浦光的光学部件来调制拉曼泵浦光。
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公开(公告)号：US06710916B1
公开(公告)日：2004-03-23
申请号：US10225338
申请日：2002-08-19
IPC分类号： H01S300
CPC分类号： G02B6/02138 , G02B6/02085 , G02B6/29317 , G02B6/29394 , H01S3/06725 , H01S3/0675 , H01S3/06758 , H04B10/2519 , H04J14/02
摘要： Fiber-based dispersion compensation elements are provided for use in optical amplifiers and other optical network equipment that handle optical data signals in fiber-optic communications links. The dispersion compensation elements may include chirped superstructure fiber gratings. Systems and method for fabricating the dispersion compensation elements using ultraviolet light are provided.
摘要翻译： 提供了基于光纤的色散补偿元件，用于在光纤通信链路中处理光数据信号的光放大器和其他光网络设备中。 色散补偿元件可以包括啁啾上层结构光纤光栅。 提供了使用紫外光制造色散补偿元件的系统和方法。
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公开(公告)号：US06545800B1
公开(公告)日：2003-04-08
申请号：US09922004
申请日：2001-08-06
IPC分类号： H04B1012
CPC分类号： H04B10/2941 , G02B6/266 , H04B10/077 , H04B10/07955
摘要： Optical channel monitor depolarizers are provided. The depolarizers may be used to reduce the effects of polarization-dependent loss on optical channel power measurements made in optical amplifiers or other optical network equipment. The channel power measurements may be used in controlling optical amplifiers and other equipment in wavelength-division-multiplexing communications links.
摘要翻译： 提供光通道监视器去极化器。 去偏振器可以用于减少偏振相关损耗对光放大器或其他光网络设备中的光信道功率测量的影响。 信道功率测量可用于控制波分复用通信链路中的光放大器和其他设备。
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公开(公告)号：US5956447A
公开(公告)日：1999-09-21
申请号：US851423
申请日：1997-05-05
摘要： An endoscope for image acquisition via illumination of an object's image, such as but not limited to a bar code, by a set of spatially resolved patterns, with subsequent reconstruction of the image without detailed spatial resolution. A device to stabilize the prescribed set of illuminating patterns against bending of the fiber is also disclosed, which consists of the auxiliary pre-bent part of the fiber and the work part of the fiber, subject to the inevitable bends with or without additional compensation. The distorting influence of the bending of the work part is compensated by the controllable loosening of the pre-bent part of the fiber. Encoding of the pixels of the image or of the illumination patterns encodes the intensity of each pixel to the excitation intensity of the corresponding mode. Such encoding is stable to the bending of the guide. Special transverse profiles of the properties of the waveguide include a rectangular, triangular and hexagonal cross-sectional shaped waveguides, which allow the pixel-to-mode encoding via direct viewing from the open end of the guide.
摘要翻译： 一种内窥镜，用于通过照射物体的图像（例如但不限于条形码）通过一组空间分辨图案进行图像采集，随后重建图像而没有详细的空间分辨率。 还公开了一种用于稳定规定的一组照明图案以防止纤维弯曲的装置，其由纤维的辅助预弯曲部分和纤维的工件部分组成，受到具有或不具有额外补偿的不可避免的弯曲。 通过纤维的预弯曲部分的可控制的松动来补偿工件的弯曲的变形影响。 图像或照明图案的像素的编码将每个像素的强度编码为相应模式的激发强度。 这种编码对于导向件的弯曲是稳定的。 波导特性的特殊横向轮廓包括矩形，三角形和六边形横截面形状的波导，其允许通过从引导件的开口端直接观察的像素到模式编码。
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公开(公告)号：US06417959B1
公开(公告)日：2002-07-09
申请号：US09774678
申请日：2001-02-01
IPC分类号： H01S300
CPC分类号： H04B10/2916 , H01S3/302
摘要： Raman fiber amplifiers are provided in which multiple pump wavelengths are used. A Raman fiber amplifier may be used to amplify optical signal channels over a range of wavelengths. Some of the pump wavelengths may be selected to create Raman gain in this range. Other pump wavelengths may be selected to create Raman loss in this range. Different pump powers may be used at each pump wavelength.
摘要翻译： 提供拉曼光纤放大器，其中使用多个泵浦波长。 可以使用拉曼光纤放大器来放大波长范围内的光信号通道。 可以选择一些泵波长以在该范围内产生拉曼增益。 可以选择其他泵浦波长以在该范围内产生拉曼损耗。 在每个泵浦波长下可以使用不同的泵浦功率。
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公开(公告)号：US06882664B2
公开(公告)日：2005-04-19
申请号：US10084908
申请日：2002-02-28
CPC分类号： H01S3/094003 , H01S3/094007 , H01S3/094019 , H01S3/094069
摘要： Methods and apparatus for coupling of pump light inside a laser cavity of a fiber laser. The optical elements of the cladding pumped laser are configured such that the pump laser is coupled within the laser cavity. An optical fiber laser includes a laser cavity comprising a lasing medium and first and second reflector devices, a pump source, and a combiner. The combiner has a first side, a second side and an input port that may be associated with one of the first and second sides. An output of the pump source is operatively coupled to the input port of the combiner, and the combiner is coupled at its first and second sides within the laser cavity.
摘要翻译： 在光纤激光器的激光腔内耦合泵浦光的方法和装置。 包层泵浦激光器的光学元件被配置为使得激光器在激光腔内耦合。 光纤激光器包括激光腔，其包括激光介质和第一和第二反射器装置，泵浦源和组合器。 组合器具有可以与第一和第二侧中的一个相关联的第一侧，第二侧和输入端口。 泵浦源的输出可操作地耦合到组合器的输入端口，并且组合器在其激光腔内的第一和第二侧耦合。
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