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Exceptional points-based optical amplifiers
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The finite gain-bandwidth product is a fundamental figure of merit that restricts the operation of standard optical amplifiers. In microcavity setups, this becomes a serious problem due to the narrow bandwidth of the device. Here we introduce a new design paradigm based on exceptional points, that relaxes this limitation and allows for building a new generation of optical amplifiers that exhibits better gain-bandwidth scaling relations. Importantly, our results can be extended to other physical systems such as acoustics and microwaves.
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Cited by 1 Pith paper
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Enhanced stability, bistability, and exceptional points in saturable active photonic couplers
Saturable gain in an asymmetric active photonic coupler stabilizes nonlinear supermodes, enables bistability, and produces exceptional points.
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