CAJ | 학술논문

为了研究锗酸盐玻璃中采用Yb3+/Tm3+/Ho3+三掺杂方式实现2 μm激光的可行性,研究了3种稀土离子的掺杂浓度对近2 μm发光的影响,从而对稀土离子掺杂浓度进行优化选择以确定理想的掺杂浓度.实验结果表明,在TmF3掺杂摩尔分数为1%时,随着Yb3+浓度的提高Ho3+的2 μm荧光强度增强;当TmF3掺杂摩尔分数为3%时,随着Yb3+浓度的提高Ho3+的2 μm荧光强度降低;随着Yb3+浓度的提高,Tm3+的近2 μm荧光发射会得到增强,且当Tm3+浓度较高时其发光更为明显,这相对削弱了Ho3+的2 μm荧光.Ho3+2 μm发光受Tm3+/Ho3+的浓度比值影响很大,即用980 nm光抽运三掺杂样品,无论Tm3+浓度单一提高还是Ho3+浓度单一降低,对于Ho3+的2μm荧光都是不利的.
위료연구타산염파리중채용Yb3+/Tm3+/Ho3+삼참잡방식실현2 μm격광적가행성,연구료3충희토리자적참잡농도대근2 μm발광적영향,종이대희토리자참잡농도진행우화선택이학정이상적참잡농도.실험결과표명,재TmF3참잡마이분수위1%시,수착Yb3+농도적제고Ho3+적2 μm형광강도증강;당TmF3참잡마이분수위3%시,수착Yb3+농도적제고Ho3+적2 μm형광강도강저;수착Yb3+농도적제고,Tm3+적근2 μm형광발사회득도증강,차당Tm3+농도교고시기발광경위명현,저상대삭약료Ho3+적2 μm형광.Ho3+2 μm발광수Tm3+/Ho3+적농도비치영향흔대,즉용980 nm광추운삼참잡양품,무론Tm3+농도단일제고환시Ho3+농도단일강저,대우Ho3+적2μm형광도시불리적.
In order to study on the feasibility of achieving 2 μm laser by using Yb3+/Tm3+/Ho3+ codoping in germanium glass, the effects of doping concentration of three rare-earth ion on the nearly 2 μm luminscence were researched, so optimized doping concentration can be acquired. The results show that when the doping mole fraction of TmF3 is 1%, the 2 μm luminscence of Ho3+ increases with doping concentration of Yb3 + ions. However, as the doping mole fraction of TmF3 is increased to 3 %, the 2 μm luminscence intensity of Ho3+ is reduced with increasing doping concentration of Yb3+ . The near 2 μm luminscence of Tm3+ can be raised by increasing doping concentration of Yb3+ ions and it is more apparent at high doping concentration of Tm3+ ions, which could weaken the luminscence of Ho3+ relatively. On the whole, the 2 μm luminscence of Ho3+ is significantly effected by the doping concentration ratio of Tm3+/Ho3+ . When the three doped samples were pumped by 980 nm LD, both the high doping concentration of Tm3+ ions and low doping concentration of Ho3+ ions can lead to the reduction of 2 μm luminscence intensity of Ho3+ .