APPARATUS FOR OPTICAL SIGNAL AMPLIFICATION

摘要

Apparatus for amplifying signal such as a burst mode signal in an optical network. A doped fiber, for example an erbium-doped fiber is placed in a preferably passive module along an optical data transmission path. A pump port is optically connected to at least one combiner such as a WDM (wavelength division multiplexor) that is placed along the optical transmission path to add in a pump wavelength in the vicinity of the doped fiber. The apparatus, which is preferably completely passive, may be advantageously placed in communication with a remote pump light source such as a pump laser resident on a management node of the network. A second pump port may be added, as well as one or more detector ports to facilitate operation of a remote control processor, which may also be resident in a management node such as an OLT (optical line terminal) in a PON (passive optical network).

主权项

1. An optical network comprising a management node separate from but in communication with a multiplexing module, wherein the multiplexing module is positioned downstream from the management node, and wherein:
the multiplexing module comprises:
at least one upstream-facing data port;a downstream-facing data port, the downstream-facing data port and the at least one upstream-facing data port defining an optical data transmission path through the multiplexing module;an erbium-doped fiber forming at least a portion of the optical transmission path;a pump-facing amplifier port, wherein the pump-facing amplifier port is in optical communication with the erbium-doped fiber via an optical path comprising an optical combiner connecting the optical path and the erbium-doped fiber such that light received at the pump-facing amplifier port propagates in the erbium doped fiber; and the management node comprises:
at least one downstream-facing data port;an optical pump;an optical-pump port in communication with the optical pump via an optical path;a processor in communication with the optical pump; anda memory accessible to the processor.