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

verfasst von

Rostislav Arkhipov, Anton Pakhomov, Mikhail Arkhipov, Ihar Babushkin, Nikolay Rosanov

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.

Organisationseinheit(en)

Institut für Quantenoptik
PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme

Externe Organisation(en)

Staatliche Universität Sankt Petersburg
St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)
RAS - Ioffe Physico Technical Institute
Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (MBI)

Typ

Artikel

Journal

Scientific reports

Band

11

ISSN

2045-2322

Publikationsdatum

13.01.2021

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Allgemein

Elektronische Version(en)

https://doi.org/10.1038/s41598-020-80775-3 (Zugang: Offen)