Exceptional-Point-Based Optical Amplifiers

Q. Zhong, S. K. Ozdemir, A. Eisfeld, A. Metelmann, R. El-Ganainy

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


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.

Original languageEnglish (US)
Article number014070
JournalPhysical Review Applied
Issue number1
StatePublished - Jan 2020

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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