Broadband amplification and upconversion luminescence properties of Er3+/Yb3+ co-doped fluorophosphate glass

被引：22
作者：
Zhang, LY
Sun, HT
Xu, SQ
Li, KF
Hu, LL
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
[2] China Jiliang Univ, Sch Informat Engn, Inst Optoelect Mat & Devices, Hangzhou 310018, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2005年 / 135卷 / 07期
关键词：
J-O parameters; broadband; effective gain cross section; upconversion;
D O I：
10.1016/j.ssc.2005.05.019
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Broadband and upconversion properties were studied in Er3+/Yb3+ co-doped fluorophosphate glasses. Large Omega(6) and S-ed/(S-ed + S-md) values and the flat gain profile over 1530-1585 nm indicate the good broadband properties of the glass system. And a premise of using Omega(6) as a parameter to estimate the broadband properties of the glasses is proposed for the first time to our knowledge. Results showed that fluorescence intensity, upconversion luminescence intensity, the intensity ratio of red/green light (656 nm/545 nm) are closely related to the Yb3+:Er3+ ratio and Er3+ concentration, and the corresponding calculated lifetime of F-4(9/2) and S-4(3/2) states for red and green upconversion samples proves this conclusion. The upconversion mechanism is also discussed. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：449 / 454
页数：6
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