Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (CAS), Shanghai 201800, China.
Opt Lett. 2011 Aug 15;36(16):3218-20. doi: 10.1364/OL.36.003218.
This Letter reports intense emission at 2.7 μm and broadband emission at 2.0 μm from Er(3+)/Tm(3+)/Ho(3+)-doped fluorophosphate glass. The fluorescence characteristics and energy transfer upon excitation of a conventional 980 nm laser diode are investigated. Based on the fluorescence spectra and lifetime measurement, the effect of Tm(3+) and Ho(3+) ions on intense 2.7 μm emission in fluorophosphate glass is demonstrated. It is also found that the effective bandwidth of 2.0 μm emission due to Tm(3+) and Ho(3+) ions can reach as high as 196 nm. These results indicate that the advantageous spectroscopic characteristics of Er(3+)/Tm(3+)/Ho(3+) triply doped fluorophosphate glass together with the outstanding thermal properties may become an attractive host for the mid-IR solid state lasers.
这封信件报道了在掺铒/铥/钬氟磷酸盐玻璃中观察到的 2.7μm 强发射和 2.0μm 宽带发射。研究了在激发常规 980nm 激光二极管时的荧光特性和能量传递。基于荧光光谱和寿命测量，证明了 Tm(3+)和 Ho(3+)离子对氟磷酸盐玻璃中 2.7μm 强发射的影响。还发现由于 Tm(3+)和 Ho(3+)离子的作用，2.0μm 发射的有效带宽可达 196nm。这些结果表明，掺铒/铥/钬三掺杂氟磷酸盐玻璃的优势光谱特性以及出色的热性能，可能成为中红外固态激光器的一种有吸引力的基质。
