Author:
Arkhipov Rostislav,Pakhomov Anton,Arkhipov Mikhail,Babushkin Ihar,Rosanov Nikolay
Abstract
AbstractHere 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.
Funder
Russian Science Foundation
Deutsche Forschungsgemeinschaft
Projekt DEAL
Publisher
Springer Science and Business Media LLC
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