| 摘要 |
<p>An optical amplifier (114) having redundancy and a dynamic range of pump power is provided. The amplifier contains a plurality of optical pump sources (115) adapted to emit a plurality of pumps. The amplifier also contains a PxV coupler (120) containing P inputs and V outputs, adapted to receive the pumps and to output V pump profiles, where P and V are positive integers > 1. The pump profiles include a first set of pumps (115-1…115-T) having a first set of wavelengths and a first power and a second set of pumps (115-T+1…115-N) having a second set of wavelengths different from the first set and a second power different from the first power. The amplifier optionally contains at least one spare optical pump source, adapted to be turned off during operation of the amplifier unless at least one of the plurality of optical pump sources becomes non operational during the operation of the amplifier.</p> |
