公开(公告)号：US11582539B2

公开(公告)日：2023-02-14

申请号：US17355094

申请日：2021-06-22

Applicant: ADVA Optical Networking SE

Inventor： Henning Hinderthür ,  Cornelius Fuerst ,  Paul Morkel ,  Christophe Meyer ,  Christian Scheerer

IPC: H04J14/02 ,  H04Q11/00

Abstract: An apparatus for management of a spectral capacity of a wavelength division multiplexing, WDM, system includes at least one pair of transmission fibers provided for transporting optical signals. Each transmission fiber of a transmission fiber pair is connected to a first port of an optical circulator having at least two additional ports and adapted to transmit an incoming optical signal entering one of its ports via its next port. WDM subsystems configured with counter-propagating assignable wavelengths are connected to associated ports of the optical circulator of the apparatus.

公开(公告)号：US11233564B1

公开(公告)日：2022-01-25

申请号：US17315408

申请日：2021-05-10

Applicant: ADVA Optical Networking SE

Inventor： Henning Hinderthür ,  Christian Scheerer ,  Christophe Meyer

IPC: H04J14/02 ,  H04B10/079 ,  H04L12/803 ,  H04L12/801 ,  H04B10/40

Abstract: The invention relates to a method for migrating data traffic from an existing optical WDM transmission system to a new optical WDM transmission system, the existing optical WDM transmission system using a first optical transmission band and the new optical WDM transmission system being capable of using a second optical transmission band. The second optical transmission band at least partially includes the first optical transmission band and a further extension band that does not overlap with the first optical transmission band, the method including the steps of. According to the invention, a migration filter device is used in order to connect, during a migration phase, the network nodes of the existing system and the network nodes of the new system to the network paths that have been used by the existing system. During the migration phase, both systems are operated in parallel, with the new system using the extension band only. In this way, during the migration phase, the data traffic handled by the existing system can stepwise be switched to the new system. After all data traffic has been switched to the new system, the existing system can be deinstalled. The migration filter devices can stepwise be deinstalled.

公开(公告)号：US20210409847A1

公开(公告)日：2021-12-30

申请号：US17355094

申请日：2021-06-22

Applicant: ADVA Optical Networking SE

Inventor： Henning Hinderthür ,  Cornelius Fuerst ,  Paul Morkel ,  Christophe Meyer ,  Christian Scheerer

IPC: H04Q11/00 ,  H04J14/02

Abstract: An apparatus for management of a spectral capacity of a wavelength division multiplexing, WDM, system includes at least one pair of transmission fibers provided for transporting optical signals. Each transmission fiber of a transmission fiber pair is connected to a first port of an optical circulator having at least two additional ports and adapted to transmit an incoming optical signal entering one of its ports via its next port. WDM subsystems configured with counter-propagating assignable wavelengths are connected to associated ports of the optical circulator of the apparatus.

公开(公告)号：US20220014267A1

公开(公告)日：2022-01-13

申请号：US17315408

申请日：2021-05-10

Applicant: ADVA Optical Networking SE

Inventor： Henning Hinderthür ,  Christian Scheerer ,  Christophe Meyer

IPC: H04B10/079 ,  H04J14/02 ,  H04L12/801 ,  H04L12/803

Abstract: The invention relates to a method for migrating data traffic from an existing optical WDM transmission system to a new optical WDM transmission system, the existing optical WDM transmission system using a first optical transmission band and the new optical WDM transmission system being capable of using a second optical transmission band. The second optical transmission band at least partially includes the first optical transmission band and a further extension band that does not overlap with the first optical transmission band, the method including the steps of. According to the invention, a migration filter device is used in order to connect, during a migration phase, the network nodes of the existing system and the network nodes of the new system to the network paths that have been used by the existing system. During the migration phase, both systems are operated in parallel, with the new system using the extension band only. In this way, during the migration phase, the data traffic handled by the existing system can stepwise be switched to the new system. After all data traffic has been switched to the new system, the existing system can be deinstalled. The migration filter devices can stepwise be deinstalled.