Tunable quasi-cw two-micron lasing in diode-pumped crystals of mixed Tm3+-doped sodium - lanthanum - gadolinium molybdates and tungstates

被引：16
作者：
Bol'shchikov, F. A. [1 ]
Zharikov, E. V. [2 ,3 ]
Lis, D. A. [2 ]
Zakharov, N. G.
Ryabochkina, P. A. [1 ]
Subbotin, K. A. [2 ]
Antipov, O. L. [3 ]
机构：
[1] Mordovian NP Ogarev State Univ, Saransk 430005, Russia
[2] Russian Acad Sci, AM Prokhorov Gen Phys Inst, Moscow 119991, Russia
[3] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603950, Russia
来源：
QUANTUM ELECTRONICS | 2010年 / 40卷 / 10期
关键词：
tunable lasing; Tm3+ ions; laser crystals; molybdates; tungstates; FIBER LASER; TM-YAG; MU-M; EFFICIENT; GROWTH;
D O I：
10.1070/QE2010v040n10ABEH014403
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Two-micron lasing is obtained for the first time on the F-3(4) -> H-3(6) transition of Tm3+ ions in diode-pumped crystals of mixed sodium-lanthanum-gadolinium tungstate Tm:NaLa1/2Gd1/2 (WO4)(2) (C-Tm = 3.6 at %) (3.6Tm:NLGW) and molybdate Tm:NaLa1/3Gd2/3(MoO4)(2) (C-Tm = 4.8 at %) (4.8Tm:NLGM). For the 3.6 Tm:NLGW crystal, the quasi-cw laser output power exceeded 200 mW and the slope efficiency (with respect to absorbed pump power) for the pi- and sigma-polarisations at wavelengths of 1908 and 1918 nm was 34% and 30%, respectively. The laser wavelength of this crystal was continuously tuned within the spectral range of 1860-1935 nm. For the 4.8 Tm:NLGM crystal, the slope efficiency for the pi- and sigma-polarisations at wavelengths of 1910 and 1918 nm was 27% and 23%, respectively, and the laser wavelength was tunable within the spectral range of 1870-1950 nm
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页码：847 / 850
页数：4
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