Stable coherent mode-locking based on π pulse formation in single-section lasers

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Arkhipov, R.; Pakhomov, A.; Arkhipov, M.; Babushkin, I.; Rosanov, N.: Stable coherent mode-locking based on π pulse formation in single-section lasers. In: Scientific Reports 11 (2021), Nr. 1, 1147. DOI: https://doi.org/10.1038/s41598-020-80775-3

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Abstract: 
Here we consider coherent mode-locking (CML) regimes in single-section cavity lasers, taking place for pulse durations less than atomic population and phase relaxation times, which arise due to coherent Rabi oscillations of the atomic inversion. Typically, CML is introduced for lasers with two sections, the gain and absorber ones. Here we show that, for certain combination of the cavity length and relaxation parameters, a very stable CML in a laser, containing only gain section, may arise. The mode-locking is unconditionally self-starting and appears due to balance of intra-pulse de-excitation and slow interpulse-scale pump-induced relaxation processes. We also discuss the scaling of the system to shorter pulse durations, showing a possibility of mode-locking for few-cycle pulses. © 2021, The Author(s).
License of this version: CC BY 4.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2021
Appears in Collections:Fakultät für Mathematik und Physik

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1 image of flag of Germany Germany 15 41.67%
2 image of flag of United States United States 8 22.22%
3 image of flag of China China 6 16.67%
4 image of flag of Brazil Brazil 5 13.89%
5 image of flag of Romania Romania 1 2.78%
6 image of flag of Korea, Republic of Korea, Republic of 1 2.78%

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