Affiliation:
1. Institute of Innovative Research
2. Fujitsu Ltd.
Abstract
We investigate the effect of a bidirectional erbium-doped fiber amplifier on the reduction of the differential phase noise in long-range distributed acoustic sensing by coherent detection. We succeeded in reducing the differential phase noise at the fiber position after the amplifier over a distance of 100 km by adjusting the gain of the bidirectional amplifier considering the amplified spontaneous emission. This will effectively improve the accuracy of strain measurement over long distances.
Cited by
3 articles.
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