Spectroscopic characterization of the Yb：ZnWO4 laser crystal

ZANG Jing-cun; CHI Jing; YU Hai-juan; SHAN Bing-rui; ZHOU Jun

The Yb:ZnWO4 crystal is grown with Czochralski method.The polarized absorption spectra and polarized emission spectra are observed.The absorption cross section is 3.0×10-20cm2,fluorescence life time is 1.15ms and emission cross section is 2.0×10-20cm2.The Stark energy levels of Yb3+ in ZnWO4 crystal are analyzed.As a result of strong absorption at 972nm and broad fluorescence band from 914nm to 1055nm,Yb:ZnWO4 can be used as a new type of tunable laser crystal pumped by LD.

1. College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China;

2. College of Laser Engineering, Beijing University of Technology, Beijing 100022, China

Received Date: 2004-07-13

Accepted Date: 2004-09-01

Available Online: 2005-09-25

Abstract: The Yb:ZnWO4 crystal is grown with Czochralski method.The polarized absorption spectra and polarized emission spectra are observed.The absorption cross section is 3.0×10-20cm2,fluorescence life time is 1.15ms and emission cross section is 2.0×10-20cm2.The Stark energy levels of Yb3+ in ZnWO4 crystal are analyzed.As a result of strong absorption at 972nm and broad fluorescence band from 914nm to 1055nm,Yb:ZnWO4 can be used as a new type of tunable laser crystal pumped by LD.

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Reference (10)

[1]	臧竞存,巩锋.掺Yb3+离子的激光晶体[J].激光与红外, 2002,32(2):143～145.
[2]	KULESHOV N V,LAGATSKY A A,SHCHERBITSKY V G et al.CW laser performance of Yb and Er:Yb doped tungstates[J].Appl Phys,1997,B64(4):409～413.
[3]	KULESHOV N V,LAGATSKY A A,PODIPENSKY A V et al.Pulsed laser operation of Yb-doped KY(WO4)2 and KGd(WO4)2[J].Opt Lett,1997,22(17):1317～1319.
[4]	VALENTINE G J,KEMP A J,BIRKIN D J L et al.Femtosecond Yb:YCOB laser pumped by narrow-stripe diode and passively mode locked using ion implanted saturable-absorber mirror[J].Electron Lett,2000,36(19):1621～1623.
[5]	傅琨,王正平,程振祥.钛宝石泵浦Nd:NaY(WO4)2晶体激光性能研究[J].光电子·激光,2001,12(8):848～850.
[6]	刘伟,臧竞存,邹玉林.Yb:ZW单晶生长缺陷和光谱性能[J].北京工业大学学报,2000,26(增刊):88～92.
[7]	马会龙,臧竞存,刘玉龙 et al.掺钕钒酸钆晶体的光谱特征[J].中国稀土学报,2002,20(6):563～566.
[8]	DARDENNE K,AKA G,KAHN-HARARI A et al.Ytterbium-dopedCa4Gd(BO3)3:an efficient infrared laser and self-frenquenly doubling crystal[J].J O S A,1999,B16(1):164～172.
[9]	HAUMESSER P H,GAUME R,VIANA B et al.Spectroscopic andcrystal-field analysis of new Yb-doped laser materials[J].J Phys Condens Matter,2001,13(23):5427～5447.
[10]	尹红兵,邓佩珍,吴光照 et al.Yb:YAG晶体中的色心[J].光学学报, 1998,18(2):247～249.

Spectroscopic characterization of the Yb：ZnWO4 laser crystal

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References

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通讯作者: 陈斌, bchen63@163.com

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