PT-symmetric coupled-cavity AlGaAs laser for tunable THz generation

Andrew Wilkey; Yifan Zhao; Yufei Jia; Mona Jarrahi; Mercedeh Khajavikhan

doi:10.1117/12.2633255

3 October 2022 PT-symmetric coupled-cavity AlGaAs laser for tunable THz generation

Andrew Wilkey, Yifan Zhao, Yufei Jia, Mona Jarrahi, Mercedeh Khajavikhan

Author Affiliations +

Proceedings Volume PC12196, Active Photonic Platforms 2022; PC121961N (2022) https://doi.org/10.1117/12.2633255
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States

Abstract

We report the design and fabrication of a PT-symmetric coupled-cavity AlGaAs MQW laser for THz beat frequency generation. The optical source consists of two PT-symmetric coupled-cavity resonators and an amplifying waveguide section, producing a beat frequency in the THz band. When the beat frequency is fed into a photomixing cell, a coherent THz signal is produced. The THz frequency can be tuned by varying the gain contrast between the two individual resonators.

Conference Presentation

Citation Download Citation

Andrew Wilkey, Yifan Zhao, Yufei Jia, Mona Jarrahi, and Mercedeh Khajavikhan "PT-symmetric coupled-cavity AlGaAs laser for tunable THz generation", Proc. SPIE PC12196, Active Photonic Platforms 2022, PC121961N (3 October 2022); https://doi.org/10.1117/12.2633255

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