Crystal growth, optical spectroscopy and laser action of Tm<sup>3+</sup>-doped monoclinic magnesium tungstate.

Title Crystal growth, optical spectroscopy and laser action of Tm<sup>3+</sup>-doped monoclinic magnesium tungstate.
Authors L. Zhang; H. Lin; G. Zhang; X. Mateos; J.Maria Serres; M. Aguiló; F. Díaz; U. Griebner; V. Petrov; Y. Wang; P. Loiko; E. Vilejshikova; K. Yumashev; Z. Lin; W. Chen
Journal Opt Express
DOI 10.1364/OE.25.003682
Abstract

We report on the crystal growth, spectroscopic investigation and laser performance of Tm3+-doped monoclinic magnesium tungstate (Tm:MgWO4), for the first time, to the best of our knowledge. A high-quality crystal has been grown by the top seeded solution growth method. The relevant spectroscopic properties are characterized in terms of absorption, luminescence and Raman spectroscopy. Judd-Ofelt (J-O) analysis is performed to evaluate the spontaneous emission probabilities and the radiative lifetimes. The absorption, stimulated-emission and gain cross-section spectra are determined for the principal light polarizations. The first laser action in the 2 ?m spectral range is demonstrated in the regime of continuous-wave operation with a maximum output power of 775 mW and a slope efficiency of 39%.

Citation L. Zhang; H. Lin; G. Zhang; X. Mateos; J.Maria Serres; M. Aguiló; F. Díaz; U. Griebner; V. Petrov; Y. Wang; P. Loiko; E. Vilejshikova; K. Yumashev; Z. Lin; W. Chen.Crystal growth, optical spectroscopy and laser action of Tm<sup>3+</sup>-doped monoclinic magnesium tungstate.. Opt Express. 2017;25(4):36823693. doi:10.1364/OE.25.003682

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Tungsten

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Thulium

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