Standby broadband light source for passive optical networks
AssigneeCisco Technology, Inc.
InventorsDamiano Rossetti, Wolfgang Fischer
Life of this patent
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Abstract
Techniques are disclosed for a broadband service provider to maintain continuity of service in the event that a broadband light source fails in a passive optical network which uses injection-locked transmitters. Generally, a first broadband light source is connected to a passive optical network. Should the first broadband light source fails, it is disconnected from the network, and a second broadband light source is connected to the network.
Claims24
A system configured to maintain continuity of service to a passive optical network (PON), the system comprising:
- an active broadband light source (BLS) providing service to a dense wavelength division multiplexing (WDM) PON;
- a standby BLS;
- and
- a monitoring device, wherein the monitoring device is configured to:
- detect a failure of the active BLS providing service to the WDM PON, disconnect the active BLD from the WDM PON, and
- connect the standby BLS to the WDM PON, wherein the standby BLS provides service to the WDM PON once connected.
A method for maintaining continuity of service to a passive optical network (PON), the method comprising:
- detecting a failure of an active broadband light source (BLS) providing service to a dense wavelength division multiplexing (WDM) PON;
- disconnecting the active BLS from the WDM PON;
- and
- connecting a standby BLS to the WDM PON, wherein the standby BLS provides service to the WDM PON once connected.
A computer-readable storage-medium containing a program which, when executed, performs an operation to maintain continuity of service to a passive optical network (PON), the operation comprising:
- detecting a failure of an active broadband light source (BLS) providing service to a dense wavelength division multiplexing (WDM) PON;
- disconnecting the active BLS from the WDM PON;
- and
- connecting a standby BLS to the WDM PON, wherein standby BLS provides service to the WDM PON once connected.
Dependencies are inferred from the claim text.