Author, as appears in the article.: Loiko, P; Mateos, X; Choi, S Y; Rotermund, F; Serres, J M; Aguilo, M; Diaz, F; Yumashev, K; Griebner, U; Petrov, V
Department: Química Física i Inorgànica
URV's Author/s: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Mateos Ferré, Xavier / Serres Serres, Josep Maria
Keywords: Tm Spectroscopy Single-walled carbon nanotubes (swcn) Q switching Operation Monoclinic klu(wo4)(2) Mode-locking Kre(wo4)(2) Hoklu(wo4)(2) microchip laser Ho-yag Graphene Efficient Carbon nanotubes
Abstract: Efficient and power-scalable laser operation of a vibronic Tm3+ : KLu(WO4)(2) microchip laser at similar to 2.13 mu m is demonstrated. In the continuous-wave mode under diode pumping at similar to 805 nm, this laser generated 1.17 W at 2109-2133 nm with a slope efficiency of 39%. This emission is related to the coupling of the electronic transitions of Tm3+ ions with the stretching vibrations of the WOW oxygen bonds in the monoclinic KLu(WO4)(2) crystal host appearing at similar to 379, 406, and 450 cm(-1). The achieved emission wavelength is longer, to our knowledge, than any previously reported laser based on Tm3+ or Ho3+ doped double tungstate crystals. Passive Q-switching of the vibronic Tm3+ : KLu(WO4)(2) laser is realized with a single-walled carbon nanotube (SWCNT) based saturable absorber, representing the longest wavelength in this mode of operation. In this regime, the maximum output power reached 0.70 W at 2131 nm, corresponding to a slope efficiency of 29%. The pulse characteristics were 25 ns/1.1 mu J at the pulse repetition frequency of 0.62 MHz. These are, we believe, the shortest pulses ever achieved in any lanthanide-based laser passively Q-switched by carbon nanostructures. A conventional (purely electronic transition) Tm3+ : KLu(WO4)(2) microchip laser at 1.92 mu m Q-switched by the same SWCNTs generated 40 ns/ 4.0 mu J pulses corresponding to a peak power of 0.1 kW, which is a record value for this type of laser oscillator, to our knowledge. (C) 2016 Optical Society of America
Thematic Areas: Statistical and nonlinear physics Química Optics Odontología Materiais Interdisciplinar Engenharias iv Engenharias iii Engenharias ii Economia Ciência da computação Biotecnología Biodiversidade Atomic and molecular physics, and optics Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: josepmaria.serres@urv.cat magdalena.aguilo@urv.cat xavier.mateos@urv.cat f.diaz@urv.cat
Author identifier: 0000-0002-4299-538X 0000-0001-6130-9579 0000-0003-1940-1990 0000-0003-4581-4967
Record's date: 2024-10-19
Papper version: info:eu-repo/semantics/acceptedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Journal Of The Optical Society Of America B-Optical Physics. 33 (11): D19-D27
APA: Loiko, P; Mateos, X; Choi, S Y; Rotermund, F; Serres, J M; Aguilo, M; Diaz, F; Yumashev, K; Griebner, U; Petrov, V (2016). Vibronic thulium laser at 2131 nm Q-switched by single-walled carbon nanotubes. Journal Of The Optical Society Of America B-Optical Physics, 33(11), D19-D27. DOI: 10.1364/JOSAB.33.000D19
Entity: Universitat Rovira i Virgili
Journal publication year: 2016
Publication Type: Journal Publications
Repositori URV