掺铒/掺镨锗酸盐玻璃中激光二极管抽运的 2.7μm 增强发射。

Enhanced emission of 2.7 μm pumped by laser diode from Er3+/Pr(3+)-codoped germanate glasses.

机构信息

Key Laboratory of Materials for High Power Lasers, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.

出版信息

Opt Lett. 2011 Apr 1;36(7):1173-5. doi: 10.1364/OL.36.001173.

DOI:10.1364/OL.36.001173

PMID:21479020

Abstract

A novel Er(3+)/Pr(3+) codoped germanate glass was fabricated and analyzed. Efficient emission at 2.7 μm from the glass was observed upon excitation of a conventional 980 nm laser diode. The 2.7 μm emission characteristics and energy transfer (ET) were investigated. Population inversions between ⁴I(13/2) and ⁴I(11/2) levels have been achieved, and an enhanced emission from 2550 to 2800 nm was obtained. Large ET efficiency of 95% indicates that the ET process from Er(3+) to Pr(3+) (⁴I(13/2), ³H₄)→(⁴I(15/2), ³F₃) is efficient and that Pr(3+) can enhance the emission of 2.7 μm by quenching the lower laser level of Er(3+) via ET.

摘要

一种新型的掺铒/掺镨锗酸盐玻璃被制备和分析。在激发传统的 980nm 激光二极管后，观察到玻璃在 2.7μm 处的有效发射。研究了 2.7μm 的发射特性和能量传递（ET）。已经实现了 ⁴I（13/2）和 ⁴I（11/2）能级之间的粒子数反转，并且获得了从 2550nm 到 2800nm 的增强发射。高达 95%的大 ET 效率表明，从 Er（3+）到 Pr（3+）（⁴I（13/2），³H₄）→（⁴I（15/2），³F₃）的 ET 过程是有效的，并且 Pr（3+）可以通过 ET 猝灭 Er（3+）的较低激光能级来增强 2.7μm 的发射。