Fs-laser-written erbium-doped double tungstate waveguide laser

被引：11

作者：

Kifle, Esrom ^{[1
]}

Loiko, Pavel ^{[2
]}

Romero, Carolina ^{[3
]}

Vazquez de Aldana, Javier Rodriguez ^{[3
]}

Rodenas, Airan ^{[1
,4
]}

Jambunathan, Venkatesan ^{[5
]}

Zakharov, Viktor ^{[2
]}

Veniaminov, Andrey ^{[2
]}

Lucianetti, Antonio ^{[5
]}

Mocek, Tomas ^{[5
]}

Aguilo, Magdalena ^{[1
]}

Diaz, Francesc ^{[1
]}

Griebner, Uwe ^{[6
]}

Petrov, Valentin ^{[6
]}

Mateos, Xavier ^{[1
]}

机构：

[1] Univ Rovira & Virgili, Dept Quim Fis & Inorgan Fis & Cristallog Mat & Na, Campus Sescelades, E-43007 Tarragona, Spain

[2] ITMO Univ, 49 Kronverkskiy Pr, St Petersburg 197101, Russia

[3] Univ Salamanca, Aplicac Laser & Foton, E-37008 Salamanca, Spain

[4] CNR, IFN, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy

[5] Inst Phys CAS, HiLASE Ctr, Radnici 828, Dolni Brezany 25241, Czech Republic

[6] Max Born Inst Nonlinear Opt & Short Pulse Spect, Max Born Str 2a, D-12489 Berlin, Germany

来源：

OPTICS EXPRESS | 2018年 / 26卷 / 23期

基金：

欧盟地平线“2020”;

关键词：

UP-CONVERSION; HIGH-POWER; YB; GLASS; NANOCRYSTALLINE; SPECTROSCOPY; KLU(WO4)(2); YTTERBIUM; CRYSTALS; GROWTH;

D O I：

10.1364/OE.26.030826

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the first erbium (Er3+) doped double tungstate waveguide laser. As a gain material, we studied a monoclinic Er3+:KLu(WO4)(2) crystal. A depressed-index buried channel waveguide formed by a 60 mu m-diameter circular cladding was fabricated by 3D femtosecond direct laser writing. The waveguide was characterized by confocal laser microscopy, mu-Raman and mu-luminescence mapping, confirming that the crystallinity of the core is preserved. The waveguide laser, diode pumped at 981 nm, generated 8.9 mW at 1533.6 nm with a slope efficiency of 20.9% in the continuous-wave regime. The laser polarization was linear (E vertical bar vertical bar N-m). The laser threshold was at 93 mW of absorbed pump power. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：30826 / 30836

页数：11

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