| Original Articles |
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Er3+ and Yb3+ Codoped Phosphate Laser Glass for High Power Flashlamp Pumping |
| FANG Yong-Zheng 1,2;JIN Ming-Lin1;WEN Lei2;LI Shun-Guang2;HU Li-Li2 |
| 1Department of Material Engineering, Shanghai Institute of Technology, Shanghai 2002352Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 |
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| Cite this article: |
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FANG Yong-Zheng, JIN Ming-Lin, WEN Lei et al 2007 Chin. Phys. Lett. 24 1283-1286 |
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Abstract A novel Yb 3+ -Er 3+ codoped phosphate glass for high power flashlamp pumping and high repetition rate laser at 1.54μm, designated EAT5-2, is developed. The weight-loss rate of is 1.3×10-5gcm-2 h-1 in boiling water, which is comparable to Kigre's QX--Er glass. Some spectroscopic parameters are analysed by Judd--Ofelt theory and McCumber theory. The emission cross
section is calculated to be 0.73×10 -20 cm2. The thermo-mechanical roperties of EAT5-2 are modified after an ion-exchange chemical strengthening process in a KNO3/NaNO3 molten salt bath. The thresholds for optical damage from the flashlamp pumping are tested on glass rods. A repetition rate of 15Hz is achieved for chemically strengthened glass. The laser experimental results at 1.54μm from flashlamp pumping are also reported.
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| Keywords:
42.70.Hj
78.55.Qr
78.40.Pg
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Received: 06 February 2007
Published: 23 April 2007
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| PACS: |
42.70.Hj
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(Laser materials)
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78.55.Qr
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(Amorphous materials; glasses and other disordered solids)
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78.40.Pg
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(Disordered solids)
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