Optical and laser properties of Nd:GdVO4 crystal
2001; Elsevier BV; Volume: 198; Issue: 4-6 Linguagem: Inglês
10.1016/s0030-4018(01)01539-5
ISSN1873-0310
AutoresHuaidong Jiang, Huaijin Zhang, Jing Wang, Hairui Xia, Xiaobo Hu, Bing Teng, Chengqian Zhang,
Tópico(s)Glass properties and applications
ResumoNd-doped gadolinium vanadate Nd:GdVO4 crystal with large sizes and good optical quality has been grown by Czochralski method. When the Judd–Ofelt theory of parity-forbidden electric-dipole transitions of rare earth ions on non-centrosymmetric sites is applied to the Nd:GdVO4, it results in a good fit on the absorption of the crystal. The spectral parameters of Nd:GdVO4 crystal have indicated that it is an excellent candidate laser material. The three intensity parameters Ωt are fitted as 12.629×10−20, 4.828×10−20 and 8.425×10−20 cm2 at t=2, 4 and 6, respectively. In laser experiment, the highest output power of up to 14.3 W at 1.06 μm has been achieved with a 4 mm thick Nd:GdVO4 crystal sample when it is pumped by a 26 W cw fiber-coupled laser-diode array. The light–light conversion efficiency is 55%, and the average slope efficiency is 62%.
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