专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明申请

US20030103723A1 Compensation system for adaptive equalization of an optical signal 失效
标题翻译：用于光信号自适应均衡的补偿系统
公开(公告)号：US20030103723A1
公开(公告)日：2003-06-05
申请号：US10254420
申请日：2002-09-25
发明人： Marc Bohn , Georg Mohs , Sven Otte , Christian Scheerer , Christoph Glingener , Jan Mietzner , Werner Rosenkranz
IPC分类号： G02B006/26 , H04J014/02 , H04B010/18
CPC分类号： H04B10/2507 , H04B10/25133 , H04B10/2572
摘要： A compensation system for adaptive equalization of an optical signal, wherein an optical filter, whose complex coefficients are adjustable, is used for signal equalization. The quality of the optical signal is used, after conversion to an electrical data signal, as a control criterion. The compensation device can largely compensate for distortion produced by dispersion, polarization mode dispersion or self phase modulation. An optical compensation filter with a wide free spectral range is used to compensate for the wavelength-dependent dispersion in a wavelength-division multiplexed system. The setting of the filter may be fixed, or may be adjusted adaptively in a closed control loop.
摘要翻译：用于光信号的自适应均衡的补偿系统，其中复数系数可调的滤光器用于信号均衡。在转换为电数据信号之后，将光信号的质量用作控制标准。补偿装置可以大大补偿由色散，偏振模色散或自相位调制产生的失真。使用具有宽自由光谱范围的光学补偿滤波器来补偿波分复用系统中的依赖于波长的色散。过滤器的设置可以是固定的，或者可以在闭合的控制回路中自适应地调整。

52. 发明申请

US20030072517A1 System for compensating for distortions in optical signals 审中-公开
标题翻译：补偿光信号失真的系统
公开(公告)号：US20030072517A1
公开(公告)日：2003-04-17
申请号：US10254162
申请日：2002-09-25
发明人： Christoph Glingener
IPC分类号： G02B006/26 , G02B006/27
CPC分类号： H04B10/2572
摘要： A system for compensating for distortions in optical signals, wherein the series connection of a controllable polarization-dependent delay element and of a controllable filter allows good signal distortion correction; for example, due to group delay dispersion or polarization mode dispersion. The series circuit also may contain further devices for signal improvement.
摘要翻译：一种用于补偿光信号中的失真的系统，其中可控偏振相关延迟元件和可控滤波器的串联连接允许良好的信号失真校正; 例如，由于群延迟色散或偏振模色散。串联电路还可以包含用于信号改善的其它装置。

53. 发明授权

US06414911B1 Flying optical head with dynamic mirror 失效
标题翻译：飞行光学头与动态镜
公开(公告)号：US06414911B1
公开(公告)日：2002-07-02
申请号：US09226423
申请日：1999-01-06
申请人： Jeffrey P. Wilde , Joseph E. Davis , Jerry E. Hurst, Jr. , John F. Heanue , Kurt Petersen , Terry McDaniel , Jeff Drazan
发明人： Jeffrey P. Wilde , Joseph E. Davis , Jerry E. Hurst, Jr. , John F. Heanue , Kurt Petersen , Terry McDaniel , Jeff Drazan
IPC分类号： G11B700
CPC分类号： G11B7/22 , G02B6/105 , G02B6/126 , G02B6/4246 , G02B26/0833 , G02B26/0841 , G02B26/0866 , G11B7/0037 , G11B7/08564 , G11B7/08576 , G11B7/0901 , G11B7/122 , G11B7/127 , G11B7/135 , G11B7/1362 , G11B7/1365 , G11B7/1372 , G11B7/1374 , G11B7/1384 , G11B7/14 , G11B11/10515 , G11B11/10532 , G11B11/10534 , G11B11/10541 , G11B11/10543 , G11B11/10554 , G11B11/10563 , G11B11/10569 , G11B11/1058 , G11B11/10595 , H02N1/008 , H04B10/2572
摘要： A magneto-optical flying head utilizes a steerable mirror in combination with a light source and a lens to write and read data onto a magneto-optical storage disk. A beam of laser light transmitted from the light source to the optical head is reflected onto a steerable micro-machined folding mirror. The reflected light from the folding mirror is directed through an embedded micro-objective GRIN lens. Fine tracking and short seeks to adjacent tracks are performed by rotating the mirror about an axis of rotation. In this way a focus spot is scanned back and forth in a direction which is approximately parallel to the radial direction of the storage disk.
摘要翻译：磁光飞头利用与光源和透镜组合的可转向反射镜来将数据写入和读取到磁光存储盘上。从光源传输到光学头的激光束被反射到可操纵的微加工折叠镜上。来自折叠镜的反射光被引导通过嵌入的微型物镜GRIN透镜。通过围绕旋转轴旋转镜子来执行对相邻轨道的精细追踪和短追踪。以这种方式，在大致平行于存储盘的径向的方向上来回扫描焦点。

54. 发明授权

US06381385B1 Polarization mode dispersion emulation 失效
标题翻译：极化模式色散仿真
公开(公告)号：US06381385B1
公开(公告)日：2002-04-30
申请号：US09470628
申请日：1999-12-22
申请人： Daniel A Watley , Richard Epworth , Alan Robinson
发明人： Daniel A Watley , Richard Epworth , Alan Robinson
IPC分类号： G02B600
CPC分类号： G02B6/274 , G02B6/02071 , G02B6/105 , G02B6/278 , H04B10/2572
摘要： A PMD (polarisation mode dispersion) emulator which provides at least first and second order emulation of PMD effects observed in fiber installed in the field consists of a small number of concatenated lengths of high birefringence fiber having an appropriate distribution of relative DGDs (differential group delays), and connected with random relative orientation. Varying some parameter, such as temperature distribution, allows the emulator to provide accelerated exploration of random fluctuations in PMD which, in the field, may require many weeks, or longer, to observe.
摘要翻译：提供在场中安装的光纤中观察到的PMD效应的至少第一和第二阶仿真的PMD（偏振模色散）仿真器包括具有适当分布的相对DGD（差分组延迟）的少量连续长度的高双折射光纤），并与随机相对取向相关联。改变诸如温度分布的一些参数，允许模拟器对PMD中的随机波动进行加速探索，在现场可能需要多周或更长时间来观察。

55. 发明授权

US06317240B1 System for and a method of compensating polarization dispersion in an optical transmission system 有权
标题翻译：用于补偿光传输系统中偏振色散的系统和方法
公开(公告)号：US06317240B1
公开(公告)日：2001-11-13
申请号：US09523190
申请日：2000-03-10
申请人： Denis Penninckx , Fabien Roy
发明人： Denis Penninckx , Fabien Roy
IPC分类号： H04B1000
CPC分类号： H04B10/2525 , H04B10/2572 , H04B2210/252
摘要： To increase the bit rate and distance of transmission of data by optical fiber, the system compensates polarization dispersion of the link by means of a polarization controller, a differential delay generator for generating a differential delay between two orthogonal polarization modes and a control unit for the polarization controller. It further includes a chromatic dispersion compensator inserted in the link and which applies a fixed value of compensation which minimizes the error rate of the signals received after transmission. Application to long-haul optical transmission via standard fibers.
摘要翻译：为了通过光纤增加数据传输的比特率和距离，系统通过偏振控制器补偿链路的偏振色散，用于产生两个正交偏振模式之间的差分延迟的差分延迟发生器和用于极化控制器它还包括插入到链路中的色散补偿器，并且施加固定的补偿值，使传输后接收的信号的误码率最小化。通过标准光纤应用于长距离光传输。

56. 发明授权

US06198559B1 Automatic delay compensation for generating NRZ signals from RZ signals in communications networks 失效
标题翻译：自动延迟补偿，用于在通信网络中生成来自RZ信号的NRZ信号
公开(公告)号：US06198559B1
公开(公告)日：2001-03-06
申请号：US09197071
申请日：1998-11-20
申请人： Narayan L. Gehlot
发明人： Narayan L. Gehlot
IPC分类号： H04B1000
CPC分类号： H04B10/2572 , H04L25/49
摘要： The present invention is a method of automatic delay compensation for use in data transmission, particularly in optical communication systems. The invention presents an inter-coding, real-time automated delay compensation method that minimizes the effects of polarization and inter-symbol interference without expensive dispersion compensation fiber in each data transmission channel. The invention is a simple-to-use, cost effective, single-wavelength method of delayed signal alignment with coarse and fine tuning that while conserving half of the power used to transmit wavelength information in conventional WDM (wavelength division multiplexing) systems.
摘要翻译：本发明是一种用于数据传输的自动延迟补偿方法，特别是在光通信系统中。本发明提出了一种互编码的实时自动延迟补偿方法，其在每个数据传输信道中最小化极化和符号间干扰的影响，而不需要昂贵的色散补偿光纤。本发明是一种简单易用的具有成本效益的单波长延迟信号对准的方法，其具有粗调和微调，同时节省用于在传统WDM（波分复用）系统中传输波长信息的功率的一半。

57. 发明授权

US6130766A Polarization mode dispersion compensation via an automatic tracking of a principal state of polarization 失效
标题翻译：通过自动跟踪主要极化状态的偏振模色散补偿
公开(公告)号：US6130766A
公开(公告)日：2000-10-10
申请号：US226835
申请日：1999-01-07
申请人： Xiang-Dong Cao
发明人： Xiang-Dong Cao
IPC分类号： H04B10/135 , H04B10/18 , H04B10/00
CPC分类号： H04B10/2572 , H04B10/2569
摘要： A polarization mode dispersion (PMD) compensator compensates for PMD in an optical signal by an automatic tracking of a principal state of polarization (PSP). A polarization controller (PC) receives a dithering optical signal including first and second principal states of polarization (PSPs) and PMD distortion received by the PMD compensator. The PC transforms the first and second PSPs into linearly polarized components, and is responsive to a feedback control signal for aligning the linearly polarized first and second PSPs to first and second polarization axes of the PBS, respectively. A polarization beam splitter (PBS) directs first polarized components of the received dithering optical signal onto a first output path, and directs second orthogonally polarized components of the received dithering optical signal onto a second output path for transmission as a PMD compensator output signal. A compensation control arrangement is responsive to both the received dithering optical signal and the first polarized components from the PBS for measuring interference characteristics of the two PSPs, and for generating the feedback control signal to the PC for aligning each of the PSPs with a corresponding one of first and second polarization axes of the PBS based on the measured interference characteristics.
摘要翻译：偏振模色散（PMD）补偿器通过自动跟踪主要的偏振态（PSP）来补偿光信号中的PMD。偏振控制器（PC）接收包括由PMD补偿器接收的第一和第二主要偏振态（PSP）和PMD失真的抖动光学信号。 PC将第一和第二PSP变换为线性偏振分量，并且响应于反馈控制信号，以将线性偏振的第一和第二PSP分别对准PBS的第一和第二偏振轴。偏振分束器（PBS）将接收的抖动光信号的第一偏振分量引导到第一输出路径上，并将接收到的抖动光信号的第二正交极化分量引导到第二输出路径上作为PMD补偿器输出信号进行传输。补偿控制装置响应于来自PBS的接收的抖动光信号和来自PBS的第一偏振分量，用于测量两个PSP的干扰特性，并且用于产生到PC的反馈控制信号，以使每个PSP与相应的一个基于所测量的干涉特性，PBS的第一和第二偏振轴。

58. 发明授权

US6122086A Compensation of dispersion 失效
标题翻译：色散补偿
公开(公告)号：US6122086A
公开(公告)日：2000-09-19
申请号：US038478
申请日：1998-02-05
申请人： Anders Djupsjobacka
发明人： Anders Djupsjobacka
IPC分类号： G02F1/01 , G02B6/34 , H04B3/04 , H04B10/2507 , H04B10/2513 , H04B10/04
CPC分类号： G02B6/29394 , H04B10/25137 , H04B10/2572
摘要： In transmission of optical signals in a dispersive medium, the signals are transmitted simultaneously in two modes in an optical fiber (15), which are orthogonal to each other, one of the signals being a non-chirped amplitude modulated signal modulated by an amplitude modulator (3), and the other signal is a phase modulated signal modulated by a phase modulator (5). The received signal is formed by the sum of the amplitude modulated contributions of the two signals. In an optical fiber system, two orthogonal modes of polarization in the same fiber can be chosen. In this manner it will be possible to transmit high bit rates and primarily over long distances.
摘要翻译：在色散介质中的光信号传输中，信号在彼此正交的光纤（15）中以两种模式同时传输，其中一个信号是由幅度调制器调制的非啁啾调幅信号（3），另一个信号是由相位调制器（5）调制的相位调制信号。接收信号由两个信号的幅度调制贡献之和形成。在光纤系统中，可以选择同一光纤中的两种正交偏振模式。以这种方式，可以传输高比特率并且主要在长距离上传输。

59. 发明授权

US6081355A Multi-wavelength light source 失效
标题翻译：多波长光源
公开(公告)号：US6081355A
公开(公告)日：2000-06-27
申请号：US813590
申请日：1997-03-07
申请人： Manish Sharma , Mitsuru Sugawara
发明人： Manish Sharma , Mitsuru Sugawara
IPC分类号： G02F1/35 , H04B10/07 , H04B10/2507 , H04B10/272 , H04B10/40 , H04B10/50 , H04B10/508 , H04B10/524 , H04B10/532 , H04B10/556 , H04B10/572 , H04B10/588 , H04B10/60 , H04J14/02
CPC分类号： H04B10/2572 , H04J14/02
摘要： An optical pulse train generated by an optical pulse generator and an oscillator is coupled into a polarization switcher to polarize two successive pulses perpendicular to each other. The optical pulse train is amplified by an EDFA, then entered into an SC fiber so that the optical spectrum is broadened. The optical pulse train output from the SC fiber is then directed to an optical wavelength demultiplexer for demultiplexing into components of desired wavelengths. In this case, since successive pulses are polarized perpendicular to each other, there is no need to use polarization maintaining fiber for the SC fiber and for connection optical modulator. In particular, if the polarization made dispersion of the SC fiber is sufficiently small, the SC pulses polarized perpendicular to each other will not overlap or be superimposed upon each other in time domain. Thus, the time-averaging degree of polarization can be held zero and non-polarized wideband white pulses can be obtained.
摘要翻译：由光脉冲发生器和振荡器产生的光脉冲串被耦合到偏振切换器中，以使彼此垂直的两个连续脉冲极化。光脉冲串由EDFA放大，然后进入SC光纤，使光谱变宽。然后将从SC光纤输出的光脉冲序列引导到光学波长解复用器，用于解复用为所需波长的分量。在这种情况下，由于连续的脉冲彼此垂直偏振，所以不需要使用用于SC光纤和连接光调制器的偏振保持光纤。特别地，如果SC光纤的极化化的色散足够小，则彼此垂直偏振的SC脉冲在时域上将不会重叠或叠加。因此，可以将时间平均偏振度保持为零，并且可以获得非偏振宽带白色脉冲。

60. 发明授权

US06075673A Composite slider design 失效
标题翻译：复合滑块设计
公开(公告)号：US06075673A
公开(公告)日：2000-06-13
申请号：US112174
申请日：1998-07-08
申请人： Jeffrey P. Wilde , Jerry E. Hurst, Jr. , John F. Heanue , John H. Jerman
发明人： Jeffrey P. Wilde , Jerry E. Hurst, Jr. , John F. Heanue , John H. Jerman
IPC分类号： G11B7/12 , G11B7/135 , G11B7/22 , G11B11/105 , G11B5/60 , G11B11/10
CPC分类号： H04B10/2572 , G02B26/0833 , G02B26/0841 , G02B26/0866 , G02B6/126 , G02B6/4246 , G11B11/10532 , G11B11/10534 , G11B11/10541 , G11B11/10543 , G11B11/1058 , G11B11/10595 , G11B7/08564 , G11B7/122 , G11B7/127 , G11B7/135 , G11B7/1362 , G11B7/1365 , G11B7/1372 , G11B7/1384 , G11B7/22 , H02N1/008 , G02B6/105 , G11B11/10515 , G11B11/10554 , G11B11/10563 , G11B11/10569 , G11B7/0037 , G11B7/08576 , G11B7/0901 , G11B7/14
摘要： A composite slider, for use in an optical or magneto-optical head that includes an optical assembly, comprises a mounting block that supports optical components, and a body that provides an air bearing surface and that further supports optical components. The slider body and mounting block include channel patterns that define an optical path. The slider mounting block includes an adhesive release channel disposed transversely relative to the optical path. The slider body includes a vertical channel and a lateral channel within which the optical components are disposed.
摘要翻译：用于包括光学组件的光学或光磁头的复合滑块包括支撑光学部件的安装块和提供空气轴承表面并进一步支撑光学部件的主体。滑块体和安装块包括限定光路的通道图案。滑块安装块包括相对于光路横向设置的粘合剂释放通道。滑块主体包括垂直通道和设置有光学部件的横向通道。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式