Author, as appears in the article.: Pan, Zhongben; Loiko, Pavel; Serres, Josep Maria; Kifle, Esrom; Yuan, Hualei; Dai, Xiaojun; Cai, Huaqiang; Wang, Yicheng; Zhao, Yongguang; Aguilo, Magdalena; Diaz, Francesc; Griebner, Uwe; Petrov, Valentin; Mateos, Xavier
Department: Química Física i Inorgànica
URV's Author/s: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Mateos Ferré, Xavier / Serres Serres, Josep Maria
Keywords: Ybcagdalo4 laser Transitions Tm Spectra Rare-earth ions Intensities Growth Emission Efficient Absorption
Abstract: © 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. We report on the crystal growth, spectroscopy characterization and first laser operation of a new tetragonal disordered “mixed” calcium aluminate crystal, Tm:Ca(Gd,Lu)AlO 4 . The introduction of Lu 3+ leads to an additional inhomogeneous broadening of Tm 3+ absorption and emission spectra compared to the well-known Tm:CaGdAlO 4 . The maximum stimulated-emission cross-section for the 3 F 4 → 3 H 6 Tm 3+ transition is 0.91 × 10 −20 cm 2 at 1813 nm for σ-polarization, and the emission bandwidth is more than 200 nm. A continuous-wave diode-pumped Tm:Ca(Gd,Lu)AlO 4 laser generates 1.82 W at 1945 nm with a slope efficiency of 29%. Under Ti:Sapphire laser pumping, a continuous tuning of the laser wavelength from 1836 to 2083 nm (tuning range: 247 nm) is demonstrated. The Tm:Ca(Gd,Lu)AlO 4 crystal is promising for tunable/femtosecond lasers at ~2 μm.
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: 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
Last page: 9995
Record's date: 2024-10-19
Journal volume: 27
Papper version: info:eu-repo/semantics/publishedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Optics Express. 27 (7): 9987-9995
APA: Pan, Zhongben; Loiko, Pavel; Serres, Josep Maria; Kifle, Esrom; Yuan, Hualei; Dai, Xiaojun; Cai, Huaqiang; Wang, Yicheng; Zhao, Yongguang; Aguilo, Mag (2019). “Mixed” Tm:Ca(Gd,Lu)AlO 4 — a novel crystal for tunable and mode-locked 2 µm lasers. Optics Express, 27(7), 9987-9995. DOI: 10.1364/OE.27.009987
Entity: Universitat Rovira i Virgili
Journal publication year: 2019
First page: 9987
Publication Type: Journal Publications
Repositori URV