title: Crystal growth, optical spectroscopy and laser action of Tm3+-doped monoclinic magnesium tungstate.
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 μm 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%.
authors.forename: Lizhen
authors.initials: L
authors.lastname: Zhang
authors.forename: Haifeng
authors.initials: H
authors.lastname: Lin
authors.forename: Ge
authors.initials: G
authors.lastname: Zhang
authors.forename: Xavier
authors.initials: X
authors.lastname: Mateos
authors.forename: Josep Maria
authors.initials: JM
authors.lastname: Serres
authors.forename: Magdalena
authors.initials: M
authors.lastname: Aguiló
authors.forename: Francesc
authors.initials: F
authors.lastname: Díaz
authors.forename: Uwe
authors.initials: U
authors.lastname: Griebner
authors.forename: Valentin
authors.initials: V
authors.lastname: Petrov
authors.forename: Yicheng
authors.initials: Y
authors.lastname: Wang
authors.forename: Pavel
authors.initials: P
authors.lastname: Loiko
authors.forename: Elena
authors.initials: E
authors.lastname: Vilejshikova
authors.forename: Konstantin
authors.initials: K
authors.lastname: Yumashev
authors.forename: Zhoubin
authors.initials: Z
authors.lastname: Lin
authors.forename: Weidong
authors.initials: W
authors.lastname: Chen