Author, as appears in the article.: Bae JE; Mateos X; Aguiló M; Díaz F; De Aldana JRV; Romero C; Lee H; Rotermund F

Department: Química Física i Inorgànica

URV's Author/s: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Mateos Ferré, Xavier

Keywords: Repetition rate Ghz Generation

Abstract: © 2020 Optical Society of America. We report on the diverse pulsed operation regimes of a femtosecond-laser-written Yb:KLuW channel waveguide laser emitting near 1040 nm. By the precise position tuning of a carbon-nanotube-coated saturable absorber (SA) mirror, the transition of the pulsed operation from Q-switching, Q-switched mode-locking and finally sub-GHz continuous-wave mode-locking are obtained based on the interplay of dispersion and mode area control. The Q-switched pulses exhibit typical fast SA Q-switched pulse characteristics depending on absorbed pump powers. In the Q-switched mode-locking, amplitude modulations of the mode-locked pulses on the Q-switched envelope are observed. The radio-frequency spectrum represents the coexistence of Q-switching and mode-locking signals. In the purely mode-locked operation, the waveguide laser generates 2.05-ps pulses at 0.5 GHz.

Thematic Areas: Química Optics Odontología Medicina iii Medicina ii Materiais Matemática / probabilidade e estatística Interdisciplinar Engenharias iv Engenharias iii Engenharias ii Ciências biológicas i Ciências agrárias i Ciência da computação Biotecnología Atomic and molecular physics, and optics Astronomia / física

licence for use: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 10944087

Author's mail: f.diaz@urv.cat xavier.mateos@urv.cat magdalena.aguilo@urv.cat

Author identifier: 0000-0003-4581-4967 0000-0003-1940-1990 0000-0001-6130-9579

Record's date: 2023-09-23

Papper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-28-12-18027&id=432255

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Optics Express. 28 (12): 18027-18034

APA: Bae JE; Mateos X; Aguiló M; Díaz F; De Aldana JRV; Romero C; Lee H; Rotermund F (2020). Transition of pulsed operation from Q-switching to continuous-wave mode-locking in a Yb:KLuW waveguide laser. Optics Express, 28(12), 18027-18034. DOI: 10.1364/OE.395701

Article's DOI: 10.1364/OE.395701

Entity: Universitat Rovira i Virgili

Journal publication year: 2020

Publication Type: Journal Publications