Thulium fiber pumped tunable Ho:CaF2 laser

被引：18

作者：

Nemec, Michal ^{[1
]}

Sulc, Jan ^{[1
]}

Jelinek, Michal ^{[1
]}

Kubecek, Vaclav ^{[1
]}

Jelinkova, Helena ^{[1
]}

Doroshenko, Maxim E. ^{[2
]}

Alimov, Olimkhon K. ^{[2
]}

Konyushkin, Vasilii A. ^{[2
]}

Nakladov, Andrei N. ^{[2
]}

Osiko, Vyatcheslav V. ^{[2
]}

机构：

[1] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Brehova 7, Prague 11519, Czech Republic

[2] RAS, AM Prokhorov Gen Phys Inst, Laser Mat & Technol Res Ctr, Vavilova 38-D, Moscow 119991, Russia

来源：

OPTICS LETTERS | 2017年 / 42卷 / 09期

基金：

俄罗斯科学基金会;

关键词：

RARE-EARTH IONS; INTENSITIES; ABSORPTION; EMISSION;

D O I：

10.1364/OL.42.001852

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The paper reports the first room-temperature operation of the in-band pumped Ho:CaF2 laser. A set of Ho:CaF2 crystals varying in holmium concentrations (from 0.1 up to 2.5 mol. % of HoF2), synthesized using the Bridgeman technique, was used for lasing and related spectroscopy investigation. A pulsed 1.94 mu m thulium fiber laser system was used for Ho: CaF2 longitudinal pumping. For 1.5 mol. % of Ho:CaF2, the maximal wavelength tunability (from 2073 to 2114 nm) and output energy (1.6 mJ at 2113 nm) were obtained for absorbed pumping energy 34 mJ. Without the tuning element, the slope efficiency up to 30% in respect to absorbed power was obtained using this sample. (C) 2017 Optical Society of America

引用

页码：1852 / 1855

页数：4

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