公开(公告)号：US20090044079A1

公开(公告)日：2009-02-12

申请号：US11834169

申请日：2007-08-06

Applicant: Adriaan J. de Lind Van Wijngaarden ,  Randy C. Giles ,  Steven K. Korotky ,  Xiang Liu

Inventor： Adriaan J. de Lind Van Wijngaarden ,  Randy C. Giles ,  Steven K. Korotky ,  Xiang Liu

IPC: H03M13/00

CPC classification number: H04L1/0009 ,  H04L1/0015

Abstract: An optical transport system (OTS) having a plurality of optical transponders (OTs) connected via one or more optical links and adapted to communicate with one another using respective rate-adaptive forward-error-correction (FEC) codes. In one embodiment, the OTS has a rate control unit (RCU) adapted to configure the OTs to dynamically adjust the rates of the FEC codes based on an estimated performance margin for each link between two respective communicating OTs to optimize the overall capacity of the OTS while maintaining an adequate, but not excessive, overall system margin.

Abstract translation: 具有经由一个或多个光链路连接并且适于使用相应的速率自适应前向纠错（FEC）码相互通信的多个光转发器（OT）的光传输系统（OTS）。 在一个实施例中，OTS具有速率控制单元（RCU），其适于配置OT以基于两个相应通信OT之间的每个链路的估计性能裕度动态地调整FEC码的速率，以优化OTS的总体容量 同时保持足够而不是过度的整体系统利润。

公开(公告)号：US06763190B2

公开(公告)日：2004-07-13

申请号：US09755613

申请日：2001-01-05

Applicant: Niraj Agrawal ,  John M. Hitchcock ,  Neil A. Jackman ,  Steven K. Korotky ,  Eric S. Tentarelli ,  Liyan Zhang

Inventor： Niraj Agrawal ,  John M. Hitchcock ,  Neil A. Jackman ,  Steven K. Korotky ,  Eric S. Tentarelli ,  Liyan Zhang

IPC: H04J1400

CPC classification number: H04J14/0284 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0287

Abstract: In a telecommunications network, such as an optical mesh network, satisfying a demand from a start node to an end node, the network is automatically provisioned from a service path to a restoration path after a failure occurs in the service path. Each affected node in the network eventually receives an indication of the occurrence of the failure in the service path. If the node is an intermediate node of the service path, then the node transmits a failure message to its next node along the service path. If the node is the end node of the service path, then the node transmits a restore message to its previous node along the restoration path. If the node is an intermediate node of the restoration path, then the node transmits a restore message to its previous node along the restoration path. In addition, the node reconfigures its cross-connect for the transition from the service path to the restoration path.

Abstract translation: 在诸如光网状网络的电信网络中，满足从起始节点到终端节点的需求，在服务路径中发生故障之后，网络被自动地从服务路径提供给恢复路径。 网络中的每个受影响的节点最终收到服务路径中发生故障的指示。 如果节点是服务路径的中间节点，则节点沿着服务路径向其下一个节点发送故障消息。 如果节点是服务路径的结束节点，则节点沿着恢复路径向其先前的节点发送恢复消息。 如果节点是恢复路径的中间节点，则节点沿着恢复路径向其先前的节点发送恢复消息。 此外，节点重新配置其从服务路径到恢复路径的转换的交叉连接。

公开(公告)号：US4961619A

公开(公告)日：1990-10-09

申请号：US318044

申请日：1989-03-02

Applicant: Jose F. Hernandez-Gil ,  Steven K. Korotky ,  Timothy O. Murphy ,  John J. Veselka

Inventor： Jose F. Hernandez-Gil ,  Steven K. Korotky ,  Timothy O. Murphy ,  John J. Veselka

IPC: G02B6/122 ,  G02B6/12 ,  G02B6/28 ,  G02F1/313

CPC classification number: G02F1/3137 ,  G02B6/2804

Abstract: An optical intersection with reduced transmission loss is described. An embodiment of the inventive interconnection comprises two intersecting waveguides. According to the teachings of the invention, deleterious asymmetric field distortions in the waveguides, associated with the presence of the adjacent waveguides, are reduced by, for example, changing the width of the intersection region, and the widths of the waveguides as they approach the intersection region.

公开(公告)号：US5600738A

公开(公告)日：1997-02-04

申请号：US366935

申请日：1994-12-30

Applicant: Glenn D. Bergland ,  Fred L. Heismann ,  Steven K. Korotky ,  Edmond J. Murphy

Inventor： Glenn D. Bergland ,  Fred L. Heismann ,  Steven K. Korotky ,  Edmond J. Murphy

IPC: G02B6/122 ,  G02B6/34 ,  G02F1/03 ,  H04B10/18 ,  G02B6/126

CPC classification number: G02B6/274 ,  G02B6/278 ,  H04B10/2572

Abstract: An optical device having a first substrate having a fast optical axis and a slow optical axis and a first end and a second substrate having a fast optical axis and a slow optical axis and a second end, the second end is positioned adjacent to the first end such that the fast optical axis of the first substrate is coupled to the slow optical axis of the second substrate and the slow optical axis of the first substrate is coupled to the fast optical axis of the second substrate, thereby permitting an optical signal to pass between the first and second substrates. The first substrate and the second substrate have substantially equal length to thereby substantially eliminate polarization dispersion.

Abstract translation: 一种光学装置，其具有具有快速光轴和慢光轴的第一基板和具有快速光轴和慢光轴和第二端的第一端和第二基板，所述第二端邻近第一端 使得第一衬底的快速光轴耦合到第二衬底的慢光轴，并且第一衬底的慢光轴耦合到第二衬底的快速光轴，从而允许光信号在第二衬底之间通过 第一和第二基板。 第一基板和第二基板具有基本上相等的长度，从而基本上消除偏振分散。

公开(公告)号：US5157744A

公开(公告)日：1992-10-20

申请号：US807689

申请日：1991-12-16

Applicant: Steven K. Korotky

Inventor： Steven K. Korotky

IPC: G02F1/035 ,  G02F1/03 ,  G02F1/225 ,  G02F1/35 ,  H04B10/18

CPC classification number: H04B10/25077 ,  G02F1/0327 ,  G02F1/225

Abstract: It has been determined that optical fibers possess a small amount of nonlinearity and, therefore, they are not exactly linear waveguides. This small amount of nonlinearity enables certain special pulse shapes to establish themselves and travel long distances without changing shape. These special pulse shapes are called solitons. This invention relates to a device for generating solitons by amplitude modulating an optical signal with separate in-phase electrical signals of different harmonically related frequencies. Specifically, an amplitude modulator such as a Y junction Mach-Zehnder interferometer has multiple sets of distributed electrodes. The interferometer has a set of electrodes for each electrical signal of a specific frequency. Thus, if three separate signals of harmonically related frequencies are used to amplitude modulate an optical signal, then the interferometer has three sets of electrodes located between the Y junctions of the Mach-Zehnder interferometer. The structure of a separate set of electrodes for each of the signals results in a soliton generator which avoids the prior art problem of signal loss caused by combining many high frequency signals into a composite signal and the resulting need for a relatively expensive amplifier capable of uniformly amplifying the multioctive composite signal.

公开(公告)号：US5040033A

公开(公告)日：1991-08-13

申请号：US371473

申请日：1989-06-26

Applicant: Niloy K. Dutta ,  Thirumala R. Halemane ,  Steven K. Korotky

Inventor： Niloy K. Dutta ,  Thirumala R. Halemane ,  Steven K. Korotky

IPC: G01J1/02 ,  G02F1/35 ,  G02F1/355 ,  H01L31/10 ,  H01L33/00 ,  H01S5/026 ,  H01S5/50 ,  H04B10/00

CPC classification number: H01S5/0264 ,  H01S5/50

Abstract: Briefly, in the invention a photodetector and an optical amplifier are integrated in the same semiconductor chip. The optical amplifier and the photodetector are positioned side-by-side on the same chip. A portion of the electromagnetic energy carried in the evanescent tail of the optical mode is detected by the photodetector for monitoring the average output power of the optical amplifier. Current confinement and lateral index guiding can be provided by Fe or Ti doped semi-insulating layers of InP. The side-by-side arrangement enables the detector to monitor the output power of the optical amplifier without degrading the output power of the optical amplifier.

公开(公告)号：US5029297A

公开(公告)日：1991-07-02

申请号：US421217

申请日：1989-10-13

Applicant: Thirumala R. Halemane ,  Thomas L. Koch ,  Steven K. Korotky

Inventor： Thirumala R. Halemane ,  Thomas L. Koch ,  Steven K. Korotky

IPC: G01J1/02 ,  G02B5/18 ,  G02B6/12 ,  G02B6/30 ,  G02B6/34 ,  G02B6/42 ,  G02F1/35 ,  H01L31/10 ,  H01L33/00 ,  H01S5/00 ,  H01S5/026 ,  H01S5/50

CPC classification number: H01S5/50 ,  G02B6/12004 ,  G02B6/34 ,  G02B6/42 ,  H01S5/0264

Abstract: The device here disclosed comprises an optical amplifier coupled to direct optical energy into a passive waveguide for transmission through the waveguide to its other end. A photodetector, positioned relative to the passive waveguide, detects the presence of optical energy in the passive waveguide. The photodetector in the structure illustrated is positioned downstream from the optical amplifier and spatially positioned with respect to the optical amplifier to receive optical energy only from the waveguide. The photodetector does not receive optical energy directly from the optical amplifier. A small fraction of the optical energy carried by the passive waveguide is received and detected by the photodetector.

公开(公告)号：US06567575B1

公开(公告)日：2003-05-20

申请号：US09676390

申请日：2000-09-29

Applicant: Ronald J. Capik ,  John P. Hickey ,  Steven K. Korotky

Inventor： Ronald J. Capik ,  John P. Hickey ,  Steven K. Korotky

IPC: G01N2100

CPC classification number: H04Q11/0005 ,  G01M11/33 ,  G02B6/3556 ,  G02B6/356 ,  G02B6/3586 ,  H04Q2011/0049

Abstract: A method and apparatus for deriving insertion losses for connections in a single-stage optical cross-connect. The optical cross-connect comprises a number (N) of input ports, a number (M) of output ports and an on-board controller. A memory is provided on the on-board controller for storing N loss parameters for the N input ports and M loss parameters for the M output ports. A modeled insertion loss for a connection between any input port and any output port can be derived from the loss parameters associated with the input and output ports.

Abstract translation: 一种用于在单级光交叉连接中导出连接的插入损耗的方法和装置。 光交叉连接包括输入端口数量（N），输出端口数量（M）和机载控制器。 在板载控制器上提供存储器，用于存储N个输入端口的N个丢失参数和M个输出端口的M个丢失参数。 任何输入端口和任何输出端口之间的连接的建模插入损耗可以从与输入和输出端口相关联的损耗参数导出。

公开(公告)号：US5388170A

公开(公告)日：1995-02-07

申请号：US156118

申请日：1993-11-22

Applicant: Fred L. Heismann ,  Steven K. Korotky ,  John J. Veselka

Inventor： Fred L. Heismann ,  Steven K. Korotky ,  John J. Veselka

IPC: G02F1/035 ,  G02F1/21 ,  G02F1/225 ,  G02B6/34

CPC classification number: G02F1/035 ,  G02F1/225 ,  G02F2001/212 ,  G02F2202/20 ,  G02F2203/21

Abstract: An interferometric modulator comprising a substrate of titanium-doped lithium niobate (Ti:LiNbO.sub.3) having top and bottom surfaces and a waveguide formed in the top surface is disclosed. A conductive layer is formed on the bottom surface of the substrate and electrically coupled to a top-surface ground plane or simply to ground potential. The bottom surface conductive layer functions to thermally stabilize the modulator during operation.

Abstract translation: 公开了一种干涉式调制器，其包括具有顶表面和底表面的掺钛铌酸锂（Ti：LiNbO 3）的衬底和形成在顶表面中的波导的干涉式调制器。 导电层形成在基板的底表面上并电耦合到顶表面接地平面或简单地接地电位。 底表面导电层用于在操作期间使调制器热稳定。

公开(公告)号：US5303079A

公开(公告)日：1994-04-12

申请号：US865567

申请日：1992-04-09

Applicant: Alan H. Gnauck ,  Steven K. Korotky ,  Jane E. Zucker

Inventor： Alan H. Gnauck ,  Steven K. Korotky ,  Jane E. Zucker

IPC: G02F1/225 ,  H04B10/18 ,  H04B10/04

CPC classification number: H04B10/25137 ,  G02F1/225 ,  G02F2203/25

Abstract: External modulation is accomplished in a dual waveguide device wherein substantially identical input optical beams are supplied to the waveguides and wherein each waveguide through its electrode is subject to individual, mutually exclusive control. Modulation signals are applied to each waveguide via its separate electrode. Control signals are applied to each waveguide for adjusting the modulation chirp parameter to a desired fixed, non-zero value. Typically, the desired value of the chirp parameter is one which provides the lowest fiber dispersion penalty for the system. Modulated lightwave signals emerging from the waveguides are combined to form a single output signal suitable for transmission over an optical fiber. In one embodiment, Mach-Zehnder interferometer having separately controllable waveguides has its input coupled to a CW laser. Both III-V semiconductor and Ti:LiNbO.sub.3 Mach-Zehnder interferometers have been utilized as external modulators in accordance with the principles of the present invention.

Abstract translation: 外部调制在双波导器件中实现，其中将基本上相同的输入光束提供给波导，并且其中通过其电极的每个波导受到单独的互斥控制。 调制信号通过其单独的电极施加到每个波导。 控制信号被施加到每个波导，用于将调制线性调频参数调整到期望的固定非零值。 通常，啁啾参数的期望值是为系统提供最低纤维分散损失的参数。 从波导出现的调制光波信号被组合以形成适合于通过光纤传输的单个输出信号。 在一个实施例中，具有单独可控波导的马赫 - 曾德干涉仪具有耦合到CW激光器的输入。 根据本发明的原理，III-V族半导体和Ti：LiNbO 3马赫 - 曾德干涉仪都被用作外部调制器。