| Analysis of the laser performance of Tm3+: ZBLAN glass at 1.47μm wavelength |
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| 引用本文： | 黄莉蕾,曹国熹,张伦,罗宏雷.Analysis of the laser performance of Tm3+: ZBLAN glass at 1.47μm wavelength[J].中国物理 B,2004,13(10):1728-1732. |
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| 作者姓名： | 黄莉蕾 曹国熹 张伦 罗宏雷 |
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| 作者单位： | Optoelectronic Division, China Institute of Metrology, Hangzhou 310034, China;Shanghai Institute of Optics & Fine Mechanics, Chinese Academia of Sciences, Shanghai 201800, China;Optoelectronic Division, China Institute of Metrology, Hangzhou 310034, China;Optoelectronic Division, China Institute of Metrology, Hangzhou 310034, China |
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| 基金项目： | Project supported by the Natural Science Foundation of Zhejiang Province, China (Grant No 600087). |
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| 摘 要： | A formula for the threshold energy of a four-level-system laser in Tm^{3+} doped fluoride glass is derived. The formula contains the parameters of the interaction between the ions and the up-conversion rate of the pump-light. It is discussed that the Tb^{3+} ions and the up-conversion pump-light have an influence on the laser performance of Tm^{3+} ions around 1.47μm wavelength. We draw the following two conclusions. (1) The laser threshold descends obviously due to the doping of Tb^{3+} ions, but the descending gradually flattens out with the increase of the content of Tb^{3+} ions. Its suitable content is (1－2)×10^{20}cm^{-3}. (2) When pump-lights both from the up-conversion and from the ground state excite simultaneously the single-doped Tm^{3+} ions, the threshold energy can reduce and the output energy can increase. In this paper, the energy conversion efficiency from the up-conversion pump-light to the output energy of laser is estimated.
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| 关 键 词： | 激光物理 阈值能量 能量转换效率 铥离子掺杂 双波长泵浦 上反转基态泵浦 铽离子掺杂 ZBLAN玻璃 |
| 收稿时间： | 2003-12-09 |
Analysis of the laser performance of Tm3+: ZBLAN glass at 1.47μm wavelength |
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| Huang Li-Lei,Cao Guo-Xi,Zhang Lun and Luo Hong-Lei.Analysis of the laser performance of Tm3+: ZBLAN glass at 1.47μm wavelength[J].Chinese Physics B,2004,13(10):1728-1732. |
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| Authors: | Huang Li-Lei Cao Guo-Xi Zhang Lun and Luo Hong-Lei |
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| Institution: | Optoelectronic Division, China Institute of Metrology, Hangzhou 310034, China; Shanghai Institute of Optics & Fine Mechanics, Chinese Academia of Sciences, Shanghai 201800, China |
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| Abstract: | A formula for the threshold energy of a four-level-system laser in Tm^{3+} doped fluoride glass is derived. The formula contains the parameters of the interaction between the ions and the up-conversion rate of the pump-light. It is discussed that the Tb^{3+} ions and the up-conversion pump-light have an influence on the laser performance of Tm^{3+} ions around 1.47μm wavelength. We draw the following two conclusions. (1) The laser threshold descends obviously due to the doping of Tb^{3+} ions, but the descending gradually flattens out with the increase of the content of Tb^{3+} ions. Its suitable content is (1－2)×10^{20}cm^{-3}. (2) When pump-lights both from the up-conversion and from the ground state excite simultaneously the single-doped Tm^{3+} ions, the threshold energy can reduce and the output energy can increase. In this paper, the energy conversion efficiency from the up-conversion pump-light to the output energy of laser is estimated. |
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| Keywords: | Tb^{3+} and Tm^{3+} ions threshold energy of laser energy conversion efficiency dual-wavelength pumps called the up-conversion and ground state pump |
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