光学学报, 2002, 22 (5): 627, 网络出版: 2006-08-08
低温下掺镱磷酸盐激光玻璃的光谱和激光特性
Spectrum and Laser Properties of Ytterbium Doped Phosphate Glass at Low Temperature
掺镱磷酸盐激光玻璃 光谱 二极管激光器抽运 准连续激光 ytterbium doped phosphate laser glass spectroscopy LD pumped Quasi-CW laser
摘要
根据低温下测得的Yb3+:磷酸盐玻璃的吸收光谱和荧光光谱,计算了Yb3+离子在磷酸盐玻璃中的能级结构,并解释了荧光寿命在低温下变化异常的原因.在低温下采用940 nm的二极管激光器抽运Yb3+:磷酸盐玻璃获得了准连续激光输出.在热力学温度为8 K时最大输出功率为2 mW,斜率效率为4%,激光中心波长为1000 nm.
Abstract
The energy levels were derived from the low temperature absorption and emission spectrum of Yb 3+ in phosphate glass. The reason which causes the abnormal change of fluorescence lifetime of Yb 3+ at low temperature was explained. Quasi-CW laser output at the low temperature was obtained from Yb 3+∶phosphate glass pumped by 940 nm laser diode. At 8 K, the maximum output was 2 mW, the slope efficiency is 4%,and peak laser wave length is 1000 nm.
戴世勋, 胡丽丽, 柳祝平, 黄国松, 姜中宏, 杉山僚. 低温下掺镱磷酸盐激光玻璃的光谱和激光特性[J]. 光学学报, 2002, 22(5): 627. 戴世勋, 胡丽丽, 柳祝平, 黄国松, 姜中宏, 杉山僚. Spectrum and Laser Properties of Ytterbium Doped Phosphate Glass at Low Temperature[J]. Acta Optica Sinica, 2002, 22(5): 627.