The Spectrum and laser properties of ytterbium doped phosphate glass at low temperature

Dai, S.*; Sugiyama, Akira; Hu, L.*; Liu, Z.*; Huang, G.*; Jiang, Z.*

Low-temperature absorption and fluorescence spectra of the Yb3+ ions were measured in phosphate glass with compositions of (60-65)P $_{2}$ O $_{5}$ -(4-8)B $_{2}$ O $_{3}$ -(5-10)Al $_{2}$ O $_{3}$ -(10-15)K $_{2}$ O-(5-10)BaO-(0-2)La $_{2}$ O $_{3}$ -(0-2)Nb $_{2}$ O $_{5}$ -(4-87)Yb $_{2}$ O $_{3}$ in mol-%. Temperature dependence of lifetime from $^{2}$ F $_{5/2}$ upper level of YB $^{3+}$ was investigated with a cryostat. The glass laser performance pumped by 940 nm laser diode was measured at different temperature range. At 8 K, glass laser oscillation had a slope efficiency of 4% and a maximum power of 2 mW at the peak laser wavelength of 1001 nm.

Language	:	English
Journal	:	Journal of Non-Crystalline Solids
Volume	:	311
Number	:	2
Pages	:	p.138 - 144
Publication Year/Month	:	2002/11
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Paper URL	:	https://doi.org/10.1016/S0022-3093(02)01365-0
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Keywords	:	Yb $^{3+}$ ; Phosphate; Laser Glass; Low Temperature; Lifetime; Laser Diode; 940nm; Spectroscopy; QX/Yb; Radiation Trapping
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Registration No. : A20020358
JAEA Abstracts No. : 301208
Paper Submission No. : 19622

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