Exceptional-point-based optical amplifiers
Qi Zhong, Şahin Kaya Özdemir, Alexander Eisfeld, A. Metelmann, Ramy El‐Ganainy
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.
Topics & Concepts
AmplifierBandwidth (computing)Optical amplifierComputer scienceFigure of meritScalingAmplifier figures of meritMicrowaveElectronic engineeringPhysicsOpticsTelecommunicationsNoise figureEngineeringMathematicsLaserGeometryAdvanced Fiber Laser TechnologiesQuantum Mechanics and Non-Hermitian PhysicsNonlinear Photonic Systems