中国科技论文在线

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2005年05月27日

【期刊论文】Temperature dependence of the wavelength and threshold of fiber-taper-coupled L-band Er3

宋峰， Xiang Peng， a) Feng Song， b) Makoto Kuwata-Gonokami， c) Shibin Jiang， d) and N. Peyghambarian

APPLIED PHYSICS LETTERS VOLUME 83, NUMBER 26 DECEMBER 2003，-0001，（）：

-1年11月30日

We report on the temperature dependence of L-band laser emission of fiber-taper-coupled Er31-doped tellurite glass microsphere. The microsphere laser emission threshold increased and the emitted laser wavelength shifted with temperature. The experimental results are explained with a quasi-four-level model, showing that a significant reduction of laser threshold can be achieved at lower temperatures and higher Q values of this microsphere laser.

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2005年05月27日

【期刊论文】掺Εr3+的Nay(W O4)2晶体的光谱特性*

宋峰，宋峰)，谭浩)，商美茹)，张光寅)，程振祥)，陈焕矗)

物理学报，2002，51（10）：2375～2379，-0001，（）：

-1年11月30日

摘要

测量了Er：Nay（W O4）2晶体的吸收光谱，激发光谱，发射光谱以及上转换发光，并对测量的结果进行了详细分析得了Er：Nay（W O4）2晶体的光学特性。解释了离子间的能级跃迁过程。

Er: Na y (， W O4)， 2晶体， Er3+，，吸收光谱，激发光谱，发射光谱，上转换

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2005年05月27日

【期刊论文】The energy transfer processes between the Er3+ and Tm3+ in Er, Tm-codoped-NaY (WO4)2 crystal

宋峰， Feng Song a， *， Jing Su a， Hao Tan a， Lin Hana， Bo Fu a， Jianguo Tian a， Guangyin Zhang a， Zhenxiang Cheng b， Huanchu Chen b

Optics Communications 241(2004)455-463，-0001，（）：

-1年11月30日

摘要

Er3+,Tm3+-codoped NaY(WO4)2 crystal was prepared by using Czochralski (CZ) pulling method. Absorption spectra, emission spectra and excitation spectra of this crystal were measured at room temperature. Such optical parameters as intensity parameters, spontaneous emission probabilities, branch ratios and lifetimes are calculated from absorption spectra with Judd-Ofelt theory. Transition processes of the energy levels of Er3+, Tm3+ are analyzed in details and the cross-relaxations: 1G4(Tm3+) + 4I15/2(Er3+)→3F2(Tm3+) + 4I13/2(Er3+), 1G4(Tm3+) + 4I15/2(Er3+)→3F4(Tm3+) + 4F9/2(Er3+) and 3H4(Tm3+) + 4I9/2(Er3+)→3F4(Tm3+) + 4S3/2(Er3+) or 2H11/2 between the two ions are put forward. Through the experiments, we have found that, in this crystal, Tm3+ strengthens luminescence of Er3+ in the green and red regions evidently. The above energy transfer processes provide potential applications of Tm3+ in Er3+-doped laser materials.

Energy transfer， Er3+， ,， Tm codoped， NaY(， WO4)， 2 crystal