Amplitude Stabilization of a Terahertz Quantum Cascade Laser with an External Metamaterial Amplitude Modulator

Wei, Binbin and Kindness, Stephen and Almond, Nikita and Wallis, R. and Wu, Y. and Ren, Yuan and Braeuninger-Weimer, Philipp and Hofmann, Stephan and Beere, HE and Ritchie, David and Degl'Innocenti, Riccardo (2018) Amplitude Stabilization of a Terahertz Quantum Cascade Laser with an External Metamaterial Amplitude Modulator. In: CLEO: Science and Innovations 2018. Optical Society of America (OSA), USA. ISBN 9781943580422

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Abstract

Terahertz laser sources with stable power levels are requested for astronomical, communication and spectroscopic applications. Here we demonstrate the amplitude stabilization of a terahertz quantum cascade laser with a graphene loaded split-ring-resonator array. This integrated amplitude modulator operates at room temperature and is capable of actively modulating the quantum cascade laser power level and stabilizing the power output via a PID loop. The laser power fluctuation was reduced from 1.82% to 0.19% of the total power

Item Type:
Contribution in Book/Report/Proceedings
ID Code:
125727
Deposited By:
Deposited On:
26 Jul 2018 12:52
Refereed?:
Yes
Published?:
Published
Last Modified:
31 Mar 2020 01:00