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Journal Article

Exceptional-Point-Based Optical Amplifiers

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Eisfeld,  Alexander
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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1904.13005.pdf
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Citation

Zhong, Q., Ozdemir, S. K., Eisfeld, A., Metelmann, A., & El-Ganainy, R. (2020). Exceptional-Point-Based Optical Amplifiers. Physical Review Applied, 13(1): 014070. doi:10.1103/PhysRevApplied.13.014070.


Cite as: https://hdl.handle.net/21.11116/0000-0008-7FD8-7
Abstract
The gain-bandwidth product is a fundamental figure of merit that restricts the operation of optical amplifiers. Here, we introduce a design paradigm based on exceptional points, which relaxes this limitation and allows for the building of a new generation of optical amplifiers that exhibits a better gain-bandwidth scaling. Additionally, our results can be extended to other physical systems such as acoustics and microwaves.