公开(公告)号：WO9937049A9

公开(公告)日：1999-10-07

申请号：PCT/US9900769

申请日：1999-01-14

Applicant: MCI WORLDCOM INC

Inventor： NATHAN SRIDHAR ,  FEE JOHN A

IPC: H04B10/20 ,  H04B10/02 ,  H04L12/437 ,  H04Q11/00 ,  H04J14/00

CPC classification number: H04Q11/0062 ,  H04J14/0283 ,  H04J14/0286 ,  H04J14/0295 ,  H04L12/437 ,  H04Q2011/0039 ,  H04Q2011/0081 ,  H04Q2011/0092

Abstract: A self-healing optical network carrying traffic between first and second optical linear terminals (NODE A, NODE B, NODE C, NODE D). The self-healing optical network including first, second, and third optical switching units (210, 216, 226, 232), first, second, and third spare optical channels (214, 220, 222, 228), and a working optical channel (212, 218, 224, 230). The first, second, and third optical switching units are coupled in a ring configuration using said first, second, and third spare optical channels. The first and second optical switching units are coupled by the first spare optical channel and by the working optical channel. The first and second optical switching units each direct the traffic between the first and second optical linear terminals along the working optical channel or along the second and third spare optical channels in the event the working optical channel is not available.

Abstract translation: 在第一和第二光线性终端（NODE A，NODE B，NODE C，NODE D）之间承载业务的自愈光网络。 包括第一，第二和第三光交换单元（210,216,226,232），第一，第二和第三备用光通道（214,220,222,228）的自愈光网络以及工作光信道 （212,218,224,230）。 第一，第二和第三光交换单元使用所述第一，第二和第三备用光信道以环形配置耦合。 第一和第二光开关单元由第一备用光通道和工作光通道耦合。 在工作光信道不可用的情况下，第一和第二光交换单元各自沿着工作光信道或沿第二和第三备用光信道引导第一和第二光线性终端之间的业务。

公开(公告)号：WO9913394A3

公开(公告)日：1999-05-06

申请号：PCT/US9819040

申请日：1998-09-11

Applicant: MCI WORLDCOM INC

Inventor： FEE JOHN A ,  MCKIEL FRANK A JR

IPC: H04B10/213 ,  H04Q11/00 ,  H04B10/20 ,  H04J14/00

CPC classification number: H04J14/0227 ,  H04B10/27 ,  H04J14/0201 ,  H04J14/0284

Abstract: A system, method and apparatus are described that allow for the updating and transmittal of a low data rate signal providing ancillary network data as a rider on a high data rate optical signal. This subcarrier modulated signal can be processed and updated by using a drop/insert facility (407) without having to alter the high data rate signal component of the data signal. Since the subcarrier signal can be detected by inexpensive equipment without having to detect and demultiplex the high data rate signal, the approach described offers a cost effective solution to the problem of network monitoring. Ancillary network management information can be communicated regardless of the quality or loss of the high data rate signal. In addition, by updating the subcarrier signal rider in a cumulative manner, a complete history of the fiber link the modulated optical signal travels on is provided to network management.

Abstract translation: 描述了一种系统，方法和装置，其允许在高数据速率光信号上更新和传送作为骑手的辅助网络数据的低数据速率信号。 可以通过使用下拉/插入设施（407）来处理和更新该子载波调制信号，而不必改变数据信号的高数据速率信号分量。 由于子载波信号可以由便宜的设备检测，而不必检测和解复用高数据速率信号，因此所描述的方法为网络监控的问题提供了成本有效的解决方案。 无论高数据速率信号的质量或损失如何，都可以传送辅助网络管理信息。 此外，通过以累积的方式更新子载波信号骑手，将经调制的光信号传播的光纤链路的完整历史提供给网络管理。

公开(公告)号：HK1022996A1

公开(公告)日：2000-08-25

申请号：HK00101937

申请日：2000-03-29

Applicant: MCI WORLDCOM INC

Inventor： FEE JOHN A

IPC: H01S5/024 ,  H01S5/06 ,  H01S5/0683 ,  H01S5/0687 ,  H01S5/14 ,  H01S

公开(公告)号：CA2320833A1

公开(公告)日：1999-08-26

申请号：CA2320833

申请日：1999-02-12

Applicant: MCI WORLDCOM INC

Inventor： FEE JOHN A ,  NATHAN SRIDHAR

IPC: H04B10/27 ,  H04B10/275 ,  H04L12/70 ,  H04Q3/52 ,  H04Q11/00 ,  H04J14/00 ,  H04B10/00 ,  H04B10/20 ,  H04J14/02 ,  H04J14/08

Abstract: A plurality of optical cross-connect switches (OCCS B, OCCS C, OCCS D) are freely interconnected (302, 304, 306, 308, 310, 312) to form a mesh type network (202). At least three of the optical cross-connect switches are switched to form a line-switched ring network, thereby forming a ring/mesh network (202). Simply by changing the switching logic of the optical crossconnect swithes within the ring/mesh network, new rings can be created and existing rings can be modified, thereby providing a great deal of flexibility to make changes to the network as traffic patterns change without incurring hardware costs or significant network downtime. Another advantage of the ring/mesh design approach is that spare capacity within the line-switched ring can be utilized by the mesh network, and spare capacity within the mesh network can be utilized by the line-switched ring, thereby significantly increasing the spare efficiency.

公开(公告)号：CA2285481A1

公开(公告)日：1998-10-01

申请号：CA2285481

申请日：1998-03-24

Applicant: MCI WORLDCOM INC

Inventor： FEE JOHN A

IPC: H01S5/024 ,  H01S5/06 ,  H01S5/0683 ,  H01S5/0687 ,  H01S5/14 ,  H01S3/04

Abstract: A stable switched multifrequency source (104) is described. The stable switched multifrequency source (104) includes a narrowband reflective optical filter bank (206). This bank (206) includes a plurality of narrowband reflective optical filter devices (208). In one embodiment, the stability and precision of the reflectivity of the narrowband reflective optical filter devices (208) are further enhanced through regulation via temperature (308) and/or bias current (128) based on a comparison of the output wavelength and a precise stable wavelength reference (134). The stable switched multifrequency source (104) also includes an optical switch (202) that is coupled to each of the narrowband reflective optical filter devices (208).

公开(公告)号：CA2318044A1

公开(公告)日：1999-07-22

申请号：CA2318044

申请日：1999-01-14

Applicant: MCI WORLDCOM INC

Inventor： NATHAN SRIDHAR ,  FEE JOHN A

IPC: G01R31/08 ,  G06F11/20 ,  H04B10/032 ,  H04J3/00 ,  H04J3/08 ,  H04L1/22 ,  H04L12/24 ,  H04Q11/00 ,  H04B10/08 ,  H04B10/00 ,  G08C15/00 ,  G06F11/00 ,  H04J14/00 ,  H04L1/00 ,  H04J14/02 ,  H04J3/14 ,  H04J1/16 ,  H04B10/20 ,  H04L12/26

Abstract: A system and method for sharing a spare channel (316) among two or more optical ring networks (202, 204) that have a common span (316). A first optical cross-connect switch OCCS (308) and a first OCCS controller (306) are placed at one end of the span (316) and a second OCCS switch (312) and a second OCCS controller (310) are placed at the other end of the span (316). The first OCCS (308) and the first OCCS controller (306) are coupled to a first ADM (K, A) from each optical ring, and the second OCCS switch (312) and the second OCCS controller (310) are coupled to a second ADM (G, F) from each optical ring. The first OCCS controller (306) receives alarm indications from each ADM that it is coupled to that senses a ring failure. The second OCCS controller (310) receives alarm indications from each ADM that it is coupled to that senses a ring failure. Upon receiving an alarm indication, the first OCCS controller (306) directs the first OCCS switch (308) to optically couple the ADM that originated the alarm indication to the spare channel (316), and the second OCCS controller (310) directs the second OCCS switch (312) to optically couple the ADM that originated the alarm indication to the spare channel (316).

公开(公告)号：MXPA00008184A

公开(公告)日：2002-05-06

申请号：MXPA00008184

申请日：1999-02-12

Applicant: MCI WORLDCOM INC

Inventor： FEE JOHN A

IPC: H04B10/27 ,  H04B10/275 ,  H04L12/70 ,  H04Q3/52 ,  H04Q11/00 ,  H04B10/00 ,  H04B10/20 ,  H04J14/00 ,  H04J14/02 ,  H04J14/08

Abstract: Una pluralidad de conmutadores opticos de conexion cruzada (OCCS B, OCCS C, OCCS D) se interconectan libremente (302, 304, 306, 308, 310, 312), para formar una red de tipo de malla (202). Cuando menos tres de los conmutadores opticos de conexion cruzada se conmutan para formar una red de anillo de linea conmutada, formando de esta manera una red de anillo/malla (202). Simplemente cambiando la logica de conmutacion de los conmutadores opticos de conexion cruzada dentro de la red de anillo/malla, se pueden crear nuevos anillos, y se pueden modificar los anillos existentes, proporcionando de esta manera una gran cantidad de flexibilidad para hacer cambios a la red a medida que cambian los patrones de trafico, sin incurrir en costos de hardware o en tiempo perdido significativo de la red. Otra ventaja del planteamiento de diseno de anillo/malla, es que la red de malla puede utilizar la capacidad de repuesto dentro del anillo de linea conmutada, y el anillo de linea conmutada puede utilizar la capacidad de repuesto dentro de la red de malla, incrementando de esta manera significativamente la eficiencia de repuesto.

公开(公告)号：CA2318046A1

公开(公告)日：1999-07-22

申请号：CA2318046

申请日：1999-01-14

Applicant: MCI WORLDCOM INC

Inventor： NATHAN SRIDHAR ,  FEE JOHN A

IPC: H04B10/20 ,  H04B10/02 ,  H04L12/437 ,  H04Q11/00 ,  H04J14/00

Abstract: A self-healing optical network carrying traffic between first and second optical linear terminals (NODE A, NODE B, NODE C, NODE D). The self-healing optical network including first, second, and third optical switching units (210, 216, 226, 232), first, second, and third spare optical channels (214, 220, 222, 228), and a working optical channel (212, 218, 224, 230). The first, second, and third optical switching units are coupled in a ring configuration using said first, second, and third spare optical channels. The first and second optical switching units are coupled by the first spare optical channel and by the working optical channel. The first and second optical switching units each direct the traffic between the first and second optical linear terminals along the working optical channel or along the second and third spare optical channels in the event the working optical channel is not available.

公开(公告)号：CA2303071A1

公开(公告)日：1999-03-18

申请号：CA2303071

申请日：1998-09-11

Applicant: MCI WORLDCOM INC

Inventor： MCKIEL FRANK A JR ,  FEE JOHN A

IPC: H04B10/213 ,  H04Q11/00 ,  H04B10/20 ,  H04L12/24

Abstract: A system, method and apparatus are described that allow for the updating and transmittal of a low data rate signal providing ancillary network data as a rider on a high data rate optical signal. This subcarrier modulated signal can be processed and updated by using a drop/insert facility (407) without having to alter the high data rate signal component of the data signal. Since the subcarrier signal can be detected by inexpensive equipment without having to detect and demultiplex the high data rate signal, the approach described offers a cost effective solution to the problem of network monitoring. Ancillary network management information can be communicated regardless of the quality or loss of the high data rate signal. In addition, by updating the subcarrier signal rider in a cumulative manner, a complete history of the fiber link the modulated optical signal travels on is provided to network management.

公开(公告)号：EP1048133A4

公开(公告)日：2003-09-10

申请号：EP99903079

申请日：1999-01-14

Applicant: MCI WORLDCOM INC

Inventor： NATHAN SRIDHAR ,  FEE JOHN A

IPC: G01R31/08 ,  G06F11/20 ,  H04B10/032 ,  H04J3/00 ,  H04J3/08 ,  H04L1/22 ,  H04L12/24 ,  H04Q11/00 ,  H04J14/02 ,  H04B10/00

CPC classification number: H04Q11/0062 ,  G06F11/2007 ,  H04B10/032 ,  H04J3/085 ,  H04J14/0283 ,  H04J14/0286 ,  H04J14/0295 ,  H04L1/22 ,  H04L41/0663 ,  H04Q2011/0081 ,  H04Q2011/0092

Abstract: A system and method for sharing a spare channel (316) among two or more optical ring networks (202, 204) that have a common span (316). A first optical cross-connect switch OCCS (308) and a first OCCS controller (306) are placed at one end of the span (316) and a second OCCS switch (312) and a second OCCS controller (310) are placed at the other end of the span (316). The first OCCS (308) and the first OCCS controller (306) are coupled to a first ADM (K, A) from each optical ring, and the second OCCS switch (312) and the second OCCS controller (310) are coupled to a second ADM (G, F) from each optical ring. The first OCCS controller (306) receives alarm indications from each ADM that it is coupled to that senses a ring failure. The second OCCS controller (310) receives alarm indications from each ADM that it is coupled to that senses a ring failure. Upon receiving an alarm indication, the first OCCS controller (306) directs the first OCCS switch (308) to optically couple the ADM that originated the alarm indication to the spare channel (316), and the second OCCS controller (310) directs the second OCCS switch (312) to optically couple the ADM that originated the alarm indication to the spare channel (316).