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15 March 2023 Delayed differential equation-based study of sub-terahertz emission in multi-section quantum dot ring lasers
Emanuele Groppo, Lorenzo Tunesi, Paolo Bardella
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Proceedings Volume 12440, Novel In-Plane Semiconductor Lasers XXII; 124400S (2023) https://doi.org/10.1117/12.2648229
Event: SPIE OPTO, 2023, San Francisco, California, United States
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Abstract
We present a study of the generation of subterahertz pulses in multi-section quantum dot (QD) ring lasers based on an improved version of the well-established delayed differential equation model, and taking into account an arbitrary number of gain and absorber sections. Results of the analysis of an 8-section ring laser emitting at 1.3 μm are presented. The proposed approach provides a significant insight for the understanding of the onset of the harmonic mode-locking in this family of devices and shows to be an effective tool for the optimization of the real devices in terms of pulses quality and generated RF intensity.
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Emanuele Groppo, Lorenzo Tunesi, and Paolo Bardella "Delayed differential equation-based study of sub-terahertz emission in multi-section quantum dot ring lasers", Proc. SPIE 12440, Novel In-Plane Semiconductor Lasers XXII, 124400S (15 March 2023); https://doi.org/10.1117/12.2648229
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KEYWORDS
Ring lasers
Differential equations
Quantum dots
Repetition frequency
Pulsed laser operation
Terahertz sources
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