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Diode-pumped master oscillator power amplifier system based on cryogenically cooled Tm:Y2O3 transparent ceramics

  • Datos identificativos

    Identificador: imarina:9216742
    Autores:
    Yue, FangxinJambunathan, VenkatesanDavid, Samuel PaulMateos, XavierSulc, JanSmrz, MartinMocek, Tomas
    Resumen:
    We demonstrated a master oscillator power amplifier system using cryogenically cooled Tm:Y2O3 transparent ceramics. The electro-optically switched master oscillator acted as a seed source and could be tuned from 1 to 100 Hz. A maximum pulse energy of 1.35 mJ with a pulse duration of 30 ns amounting to a peak power of 45 kW was obtained at 10 Hz. The power amplification via double-pass geometry achieved maximum single pulse energy of 2.94 mJ at 10 Hz with a pulse duration of 32 ns. The results showed the pulsed lasing potential of Tm:Y2O3 transparent ceramics at cryogenic temperatures. This gain material can be considered as an alternative gain medium for high average and peak power laser development around 2 mu m in nano-second regime. Pulsed lasers generating high energy/power in the 1.8-2.0 mu m region based on the 3F4 -, 3H6 transition of Tm3+ (hereafter: Tm) possess broad applications in several fields such as laser induced damage threshold (LIDT) measurement, polymer material processing, remote sensing, medical surgery, pump source for mid-infrared lasers, etc. [1-5]. The advantages of such lasers are mainly due to two reasons: 1) the 3H6 -, 3H4 transition and 2) the cross-relaxation process. The former can be easily excited by the commercial AlGaAs laser diodes emitting around 800 nm, and the latter increases the laser efficiency by gathering two excited Tm ions for each absorbed pump photon on the 3F4 laser level [6]. However, at room temperature, due to the quasi-three-level nature of Tm ion, the material suffers from reabsorption losses due to the finite population in the 3H6 laser level. This in turn results in higher laser threshold and limits the
  • Otros:

    Autor según el artículo: Yue, Fangxin; Jambunathan, Venkatesan; David, Samuel Paul; Mateos, Xavier; Sulc, Jan; Smrz, Martin; Mocek, Tomas;
    Departamento: Química Física i Inorgànica
    Autor/es de la URV: Mateos Ferré, Xavier
    Palabras clave: Transparent ceramic Single pulse energy Power amplifiers Power amplification Oscillators (electronic) Optical society of america Master oscillators Master oscillator power amplifier systems Laser oscillation High average Double-pass geometry Diode amplifiers Cryogenic temperatures Continuous-wave
    Resumen: We demonstrated a master oscillator power amplifier system using cryogenically cooled Tm:Y2O3 transparent ceramics. The electro-optically switched master oscillator acted as a seed source and could be tuned from 1 to 100 Hz. A maximum pulse energy of 1.35 mJ with a pulse duration of 30 ns amounting to a peak power of 45 kW was obtained at 10 Hz. The power amplification via double-pass geometry achieved maximum single pulse energy of 2.94 mJ at 10 Hz with a pulse duration of 32 ns. The results showed the pulsed lasing potential of Tm:Y2O3 transparent ceramics at cryogenic temperatures. This gain material can be considered as an alternative gain medium for high average and peak power laser development around 2 mu m in nano-second regime. Pulsed lasers generating high energy/power in the 1.8-2.0 mu m region based on the 3F4 -, 3H6 transition of Tm3+ (hereafter: Tm) possess broad applications in several fields such as laser induced damage threshold (LIDT) measurement, polymer material processing, remote sensing, medical surgery, pump source for mid-infrared lasers, etc. [1-5]. The advantages of such lasers are mainly due to two reasons: 1) the 3H6 -, 3H4 transition and 2) the cross-relaxation process. The former can be easily excited by the commercial AlGaAs laser diodes emitting around 800 nm, and the latter increases the laser efficiency by gathering two excited Tm ions for each absorbed pump photon on the 3F4 laser level [6]. However, at room temperature, due to the quasi-three-level nature of Tm ion, the material suffers from reabsorption losses due to the finite population in the 3H6 laser level. This in turn results in higher laser threshold and limits the
    Áreas temáticas: Química Optics Materials science, multidisciplinary Materiais Interdisciplinar Engenharias iv Engenharias iii Engenharias ii Electronic, optical and magnetic materials Biotecnología Astronomia / física
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    Direcció de correo del autor: xavier.mateos@urv.cat
    Identificador del autor: 0000-0003-1940-1990
    Fecha de alta del registro: 2024-07-27
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    Enlace a la fuente original: https://www.osapublishing.org/ome/fulltext.cfm?uri=ome-11-5-1489&id=450319
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Optical Materials Express. 11 (5): 1489-1496
    Referencia de l'ítem segons les normes APA: Yue, Fangxin; Jambunathan, Venkatesan; David, Samuel Paul; Mateos, Xavier; Sulc, Jan; Smrz, Martin; Mocek, Tomas; (2021). Diode-pumped master oscillator power amplifier system based on cryogenically cooled Tm:Y2O3 transparent ceramics. Optical Materials Express, 11(5), 1489-1496. DOI: 10.1364/OME.422603
    DOI del artículo: 10.1364/OME.422603
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2021
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Electronic, Optical and Magnetic Materials,Materials Science, Multidisciplinary,Optics
    Transparent ceramic
    Single pulse energy
    Power amplifiers
    Power amplification
    Oscillators (electronic)
    Optical society of america
    Master oscillators
    Master oscillator power amplifier systems
    Laser oscillation
    High average
    Double-pass geometry
    Diode amplifiers
    Cryogenic temperatures
    Continuous-wave
    Química
    Optics
    Materials science, multidisciplinary
    Materiais
    Interdisciplinar
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Electronic, optical and magnetic materials
    Biotecnología
    Astronomia / física
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