Patent ID: 9712242
Date: 2017-07-18
CPC Classifications: H04B,H04J

Claim:
1. An optical network, comprising: a first set of optical fibers, a multimode multiplexer, a multimode amplifier, a multimode demultiplexer, and a second set of optical fibers, wherein the first set of optical fibers is connected via the multimode multiplexer to the multimode amplifier, wherein the multimode amplifier is connected via the multimode demultiplexer to the second set of optical fibers, wherein a singlemode optical amplifier is deployed between the first set of optical fibers and the multimode multiplexer and/or between the multimode demultiplexer and the second set of optical fibers, wherein several singlemode optical amplifiers are deployed between the first set of optical fibers and the multimode multiplexer and/or between the multimode demultiplexer and the second set of optical fibers, and wherein the several optical amplifiers, in particular a group of optical amplifiers, share a common pump that is used to provide the required power to the different singlemode fibers.